// DOQCS : http://doqcs.ncbs.res.in/ // Accession Name = Synaptic_Network // Accession Number = 16 // Transcriber = Upinder S. Bhalla, NCBS // Developer = Upinder S. Bhalla, NCBS // Species = Generic mammalian // Tissue = Neuronal // Cell Compartment = Synapse // Notes = This model is an annotated version of the synaptic signaling network.
The primary reference is Bhalla US and Iyengar R. Science (1999) 283(5400):381-7 but several of the model pathways have been updated.
Bhalla US Biophys J. 2002 Aug;83(2):740-52
Bhalla US J Comput Neurosci. 2002 Jul-Aug;13(1):49-62 //genesis // kkit Version 11 flat dumpfile // Saved on Thu Dec 8 14:43:42 2005 include kkit {argv 1} FASTDT = 0.0001 SIMDT = 0.001 CONTROLDT = 1 PLOTDT = 1 MAXTIME = 200 TRANSIENT_TIME = 2 VARIABLE_DT_FLAG = 1 DEFAULT_VOL = 1.6667e-21 VERSION = 11.0 setfield /file/modpath value /home2/bhalla/scripts/modules kparms //genesis initdump -version 3 -ignoreorphans 1 simobjdump doqcsinfo filename accessname accesstype transcriber developer \ citation species tissue cellcompartment methodology sources \ model_implementation model_validation x y z simobjdump table input output alloced step_mode stepsize x y z simobjdump xtree path script namemode sizescale simobjdump xcoredraw xmin xmax ymin ymax simobjdump xtext editable simobjdump xgraph xmin xmax ymin ymax overlay simobjdump xplot pixflags script fg ysquish do_slope wy simobjdump group xtree_fg_req xtree_textfg_req plotfield expanded movealone \ link savename file version md5sum 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0.094091 0.0937555 \ 0.09342 0.0930845 0.092749 0.0924135 0.092078 0.0917425 0.091407 0.0910715 \ 0.090736 0.0904005 0.090065 0.0897295 0.089394 0.0890585 0.088723 0.0883875 \ 0.088052 0.0877165 0.087381 0.0870455 0.08671 0.0863745 0.086039 0.0857035 \ 0.085368 0.0850325 0.084697 0.0843615 0.084026 0.0836905 0.083355 0.0830195 \ 0.082684 0.0823485 0.082013 0.0816775 0.081342 0.0810065 0.080671 0.0803355 loadtab -continue \ 0.08 simundump group /kinetics/CaRegulation 1 darkgreen black x 0 1 "" defaultfile \ /home2/bhalla/scripts/modules/defaultfile_0.g 0 0 0 -23 21 0 simundump kreac /kinetics/CaRegulation/CaTraspATPase 1 25 0 "" white \ darkgreen -20 12 0 simundump kpool /kinetics/CaRegulation/Ca-sequester 1 0 6.3328 6.3328 \ 6.0795e+05 6.0795e+05 0 0 96000 0 /kinetics/geometry[5] red darkgreen -20 \ 10 0 simundump kpool /kinetics/CaRegulation/Ca-leak-to-cytoplasm 1 0 0.024 0.024 \ 14400 14400 0 0 6e+05 5 /kinetics/geometry[4] pink darkgreen -23 18 0 simundump kchan /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan 1 8 \ 0.1 0 1 0 "" brown pink -23 16 0 simundump kpool /kinetics/CaRegulation/CaTransp-2Ca 1 0 0 0 0 0 0 0 6e+05 0 \ /kinetics/geometry[4] pink darkgreen -19 14 0 simundump kpool /kinetics/CaRegulation/CaTransp 1 0 0.24 0.24 1.44e+05 \ 1.44e+05 0 0 6e+05 0 /kinetics/geometry[4] pink darkgreen -21 14 0 simundump kreac /kinetics/CaRegulation/Ca-bind-to-Transp 1 1e-08 144 "" white \ darkgreen -20 16 0 simundump kpool /kinetics/CaRegulation/IP3R 1 0 0.016643 0.016643 9985.6 \ 9985.6 0 0 6e+05 0 /kinetics/geometry[4] green darkgreen -25 10 0 simundump kreac /kinetics/CaRegulation/IP3Rbind 1 2.3148e-19 1 "" white \ darkgreen -25 12 0 simundump kpool /kinetics/CaRegulation/IP3R* 1 0 2.3735e-05 2.3735e-05 14.241 \ 14.241 0 0 6e+05 0 /kinetics/geometry[4] green darkgreen -23 10 0 simundump kchan /kinetics/CaRegulation/IP3R*/IP3chan 1 200 0.1 0 1 0 "" brown \ green -23 12 0 simundump kpool /kinetics/CaRegulation/CaEPump 1 0 0.005 0.005 3000 3000 0 0 \ 6e+05 0 /kinetics/geometry[4] pink darkgreen -16 21 0 simundump kenz /kinetics/CaRegulation/CaEPump/Ca-pump-out 1 0 0 0 0 6e+05 \ 0.003 288 72 0 0 "" red pink "" -16 20 0 simundump kpool /kinetics/CaRegulation/Ca-ext 1 0 4000 4000 2.4e+11 2.4e+11 0 \ 0 6e+07 4 /kinetics/geometry[6] red darkgreen -16 18 0 simundump kpool /kinetics/CaRegulation/Ca-leak-from-extracell 1 0 0.00083333 \ 0.00083333 500 500 0 0 6e+05 0 /kinetics/geometry[4] hotpink darkgreen -20 \ 21 0 simundump kchan /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan 1 \ 0.004 0.1 0 1 0 "" brown hotpink -20 20 0 simundump kpool /kinetics/CaRegulation/capacitive_Ca_entry* 1 0 0.01 0.01 \ 6000 6000 0 0 6e+05 0 /kinetics/geometry[4] hotpink darkgreen -16 14 0 simundump kchan /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan 1 \ 0.01 0.1 0 1 0 "" brown hotpink -16 16 0 simundump kreac /kinetics/CaRegulation/inactivate_cap_Ca 1 1.2e-11 1 "" white \ darkgreen -16 12 0 simundump kpool /kinetics/CaRegulation/inact_cap_entry 1 0 0 0 0 0 0 0 6e+05 \ 0 /kinetics/geometry[4] pink darkgreen -16 10 0 simundump kpool /kinetics/Ca_intracell 1 0 0.08 0.08 48000 48000 0 0 6e+05 2 \ /kinetics/geometry[4] red black -20 18 0 simundump kpool /kinetics/Ca_stim 0 0 0 0 0 0 0 0 6e+05 2 \ /kinetics/geometry[4] 61 black 4 21 0 simundump kpool /kinetics/Ca 1 0 0.08 0.08 48000 48000 0 0 6e+05 0 \ /kinetics/geometry[4] red black 1 10 0 simundump kpool /kinetics/IP3 1 0 0.73 0.73 4.38e+05 4.38e+05 0 0 6e+05 0 \ /kinetics/geometry[4] pink yellow -25 14 0 simundump kpool /kinetics/PIP2 1 0 10 10 6e+06 6e+06 0 0 6e+05 4 \ /kinetics/geometry[4] green yellow 6 -18 0 simundump doqcsinfo /kinetics/doqcsinfo 0 db16.g Synaptic_Network network \ " Upinder S. Bhalla, NCBS" " Upinder S. Bhalla, NCBS" " " \ "General Mammalian" Neuronal Synapse \ "Quantitative match to experiments, Qualitative" \ "Bhalla US and Iyengar R. Science (1999) 283(5400):381-7 ( peer-reviewed publication )." \ "Exact GENESIS implementation" \ "Approximates original data,Quantitatively predicts new data " 99 150 0 simundump xgraph /graphs/conc1 0 0 200 0 10 0 simundump xgraph /graphs/conc2 0 360.16 200 0.015494 0.49511 0 simundump xplot /graphs/conc1/Glu.Co 3 524288 \ "delete_plot.w ; edit_plot.D " green 0 0 1 simundump xplot /graphs/conc1/Ca.Co 3 524288 \ "delete_plot.w ; edit_plot.D " red 0 0 1 simundump xplot /graphs/conc1/PP1-active.Co 3 524288 \ "delete_plot.w ; edit_plot.D " cyan 0 0 1 simundump xplot /graphs/conc1/PKA-active.Co 3 524288 \ "delete_plot.w ; edit_plot.D " yellow 0 0 1 simundump xplot /graphs/conc1/cAMP.Co 3 524288 \ "delete_plot.w ; edit_plot.D " green 0 0 1 simundump xplot /graphs/conc1/AA.Co 3 524288 \ "delete_plot.w ; edit_plot.D " darkgreen 0 0 1 simundump xplot /graphs/conc1/DAG.Co 3 524288 \ "delete_plot.w ; edit_plot.D " green 0 0 1 simundump xplot /graphs/conc1/PLC-Ca.Co 3 524288 \ "delete_plot.w ; edit_plot.D " cyan 0 0 1 simundump xplot /graphs/conc1/PLC-Ca-Gq.Co 3 524288 \ "delete_plot.w ; edit_plot.D " cyan 0 0 1 simundump xplot /graphs/conc1/Ca-sequester.Co 3 524288 \ "delete_plot.w ; edit_plot.D " red 0 0 1 simundump xplot /graphs/conc1/IP3.Co 3 524288 \ "delete_plot.w ; edit_plot.D " pink 0 0 1 simundump xplot /graphs/conc2/tot_CaM_CaMKII.Co 3 524288 \ "delete_plot.w ; edit_plot.D " green 0 0 1 simundump xplot /graphs/conc2/tot_autonomous_CaMKII.Co 3 524288 \ "delete_plot.w ; edit_plot.D " green 0 0 1 simundump xplot /graphs/conc2/CaM-Ca4.Co 3 524288 \ "delete_plot.w ; edit_plot.D " blue 0 0 1 simundump xplot /graphs/conc2/PKC-active.Co 3 524288 \ "delete_plot.w ; edit_plot.D " red 0 0 1 simundump xplot /graphs/conc2/MAPK*.Co 3 524288 \ "delete_plot.w ; edit_plot.D " orange 0 0 1 simundump xplot /graphs/conc2/BetaGamma.Co 3 524288 \ "delete_plot.w ; edit_plot.D " yellow 0 0 1 simundump xplot /graphs/conc2/GTP-Ras.Co 3 524288 \ "delete_plot.w ; edit_plot.D " orange 0 0 1 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into decode_ca_reg.g." \ "Minor cosmetic changes with positioning" \ "of molecules." addmsg /kinetics/PKC/PKC-act-by-Ca /kinetics/PKC/PKC-Ca REAC B A addmsg /kinetics/PKC/PKC-act-by-DAG /kinetics/PKC/PKC-Ca REAC A B addmsg /kinetics/PKC/PKC-Ca-to-memb /kinetics/PKC/PKC-Ca REAC A B addmsg /kinetics/PKC/PKC-act-by-Ca-AA /kinetics/PKC/PKC-Ca REAC A B addmsg /kinetics/PKC/PKC-cytosolic /kinetics/PKC/PKC-act-by-Ca SUBSTRATE n addmsg /kinetics/Ca /kinetics/PKC/PKC-act-by-Ca SUBSTRATE n addmsg /kinetics/PKC/PKC-Ca /kinetics/PKC/PKC-act-by-Ca PRODUCT n addmsg /kinetics/DAG /kinetics/PKC/PKC-act-by-DAG SUBSTRATE n addmsg /kinetics/PKC/PKC-Ca /kinetics/PKC/PKC-act-by-DAG SUBSTRATE n addmsg /kinetics/PKC/PKC-Ca-DAG /kinetics/PKC/PKC-act-by-DAG PRODUCT n addmsg /kinetics/PKC/PKC-Ca /kinetics/PKC/PKC-Ca-to-memb SUBSTRATE n addmsg /kinetics/PKC/PKC-Ca-memb* /kinetics/PKC/PKC-Ca-to-memb PRODUCT n addmsg /kinetics/PKC/PKC-Ca-DAG /kinetics/PKC/PKC-DAG-to-memb SUBSTRATE n addmsg 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/kinetics/PLCbeta/PLC-Gq REAC A B addmsg /kinetics/PLCbeta/PLC /kinetics/PLCbeta/PLC-bind-Gq SUBSTRATE n addmsg /kinetics/G*GTP /kinetics/PLCbeta/PLC-bind-Gq SUBSTRATE n addmsg /kinetics/PLCbeta/PLC-Gq /kinetics/PLCbeta/PLC-bind-Gq PRODUCT n addmsg /kinetics/Ca /kinetics/PLCbeta/PLC-Gq-bind-Ca SUBSTRATE n addmsg /kinetics/PLCbeta/PLC-Gq /kinetics/PLCbeta/PLC-Gq-bind-Ca SUBSTRATE n addmsg /kinetics/PLCbeta/PLC-Ca-Gq /kinetics/PLCbeta/PLC-Gq-bind-Ca PRODUCT n addmsg /kinetics/Gq/Trimerize-G /kinetics/BetaGamma REAC A B addmsg /kinetics/Gq/Basal-Act-G /kinetics/BetaGamma REAC B A addmsg /kinetics/Gq/Activate-Gq /kinetics/BetaGamma REAC B A addmsg /kinetics/Ras/bg-act-GEF /kinetics/BetaGamma REAC A B addmsg /kinetics/PLCbeta/Act-PLC-by-Gq /kinetics/G*GTP REAC A B addmsg /kinetics/PLCbeta/PLC-bind-Gq /kinetics/G*GTP REAC A B addmsg /kinetics/Gq/Inact-G /kinetics/G*GTP REAC A B addmsg /kinetics/Gq/Basal-Act-G /kinetics/G*GTP REAC B A addmsg /kinetics/Gq/Activate-Gq /kinetics/G*GTP REAC B A addmsg /kinetics/PLCbeta/Inact-PLC-Gq /kinetics/G*GDP REAC B A addmsg /kinetics/Gq/Inact-G /kinetics/G*GDP REAC B A addmsg /kinetics/Gq/Trimerize-G /kinetics/G*GDP REAC A B addmsg /kinetics/Gq/mGluR /kinetics/Gq/RecLigandBinding SUBSTRATE n addmsg /kinetics/Glu /kinetics/Gq/RecLigandBinding SUBSTRATE n addmsg /kinetics/Gq/Rec-Glu /kinetics/Gq/RecLigandBinding PRODUCT n addmsg /kinetics/Gq/Trimerize-G /kinetics/Gq/G-GDP REAC B A addmsg /kinetics/Gq/Basal-Act-G /kinetics/Gq/G-GDP REAC A B addmsg /kinetics/Gq/Rec-Glu-bind-Gq /kinetics/Gq/G-GDP REAC A B addmsg /kinetics/Gq/Rec-bind-Gq /kinetics/Gq/G-GDP REAC A B addmsg /kinetics/Gq/G-GDP /kinetics/Gq/Basal-Act-G SUBSTRATE n addmsg /kinetics/G*GTP /kinetics/Gq/Basal-Act-G PRODUCT n addmsg /kinetics/BetaGamma /kinetics/Gq/Basal-Act-G PRODUCT n addmsg /kinetics/G*GDP /kinetics/Gq/Trimerize-G SUBSTRATE n addmsg /kinetics/BetaGamma /kinetics/Gq/Trimerize-G SUBSTRATE n addmsg /kinetics/Gq/G-GDP /kinetics/Gq/Trimerize-G PRODUCT n addmsg /kinetics/G*GTP /kinetics/Gq/Inact-G SUBSTRATE n addmsg /kinetics/G*GDP /kinetics/Gq/Inact-G PRODUCT n addmsg /kinetics/Gq/RecLigandBinding /kinetics/Gq/mGluR REAC A B addmsg /kinetics/Gq/Rec-Glu /kinetics/Gq/mGluR CONSERVE n nInit addmsg /kinetics/Gq/Rec-Glu-Gq /kinetics/Gq/mGluR CONSERVE n nInit addmsg /kinetics/Gq/Rec-Gq /kinetics/Gq/mGluR CONSERVE n nInit addmsg /kinetics/Gq/Rec-bind-Gq /kinetics/Gq/mGluR REAC A B addmsg /kinetics/Gq/Blocked-rec-Gq /kinetics/Gq/mGluR CONSERVE n nInit addmsg /kinetics/Gq/RecLigandBinding /kinetics/Gq/Rec-Glu REAC B A addmsg /kinetics/Gq/Rec-Glu-bind-Gq /kinetics/Gq/Rec-Glu REAC A B addmsg /kinetics/Gq/Activate-Gq /kinetics/Gq/Rec-Glu REAC B A addmsg /kinetics/Gq/Glu-bind-Rec-Gq /kinetics/Gq/Rec-Gq REAC A B addmsg /kinetics/Gq/Rec-bind-Gq /kinetics/Gq/Rec-Gq REAC B A addmsg /kinetics/Gq/Antag-bind-Rec-Gq /kinetics/Gq/Rec-Gq REAC A B addmsg /kinetics/Gq/G-GDP /kinetics/Gq/Rec-Glu-bind-Gq SUBSTRATE n addmsg /kinetics/Gq/Rec-Glu /kinetics/Gq/Rec-Glu-bind-Gq SUBSTRATE n addmsg /kinetics/Gq/Rec-Glu-Gq /kinetics/Gq/Rec-Glu-bind-Gq PRODUCT n addmsg /kinetics/Glu /kinetics/Gq/Glu-bind-Rec-Gq SUBSTRATE n addmsg /kinetics/Gq/Rec-Glu-Gq /kinetics/Gq/Glu-bind-Rec-Gq PRODUCT n addmsg /kinetics/Gq/Rec-Gq /kinetics/Gq/Glu-bind-Rec-Gq SUBSTRATE n addmsg /kinetics/Gq/Rec-Glu-bind-Gq /kinetics/Gq/Rec-Glu-Gq REAC B A addmsg /kinetics/Gq/Glu-bind-Rec-Gq /kinetics/Gq/Rec-Glu-Gq REAC B A addmsg /kinetics/Gq/Activate-Gq /kinetics/Gq/Rec-Glu-Gq REAC A B addmsg /kinetics/Gq/Rec-Glu-Gq /kinetics/Gq/Activate-Gq SUBSTRATE n addmsg /kinetics/G*GTP /kinetics/Gq/Activate-Gq PRODUCT n addmsg /kinetics/BetaGamma /kinetics/Gq/Activate-Gq PRODUCT n addmsg /kinetics/Gq/Rec-Glu /kinetics/Gq/Activate-Gq PRODUCT n addmsg /kinetics/Gq/G-GDP /kinetics/Gq/Rec-bind-Gq SUBSTRATE n addmsg /kinetics/Gq/mGluR /kinetics/Gq/Rec-bind-Gq SUBSTRATE n addmsg /kinetics/Gq/Rec-Gq /kinetics/Gq/Rec-bind-Gq PRODUCT n addmsg /kinetics/Gq/Antag-bind-Rec-Gq /kinetics/Gq/mGluRAntag REAC A B addmsg /kinetics/Gq/Rec-Gq /kinetics/Gq/Antag-bind-Rec-Gq SUBSTRATE n addmsg /kinetics/Gq/mGluRAntag /kinetics/Gq/Antag-bind-Rec-Gq SUBSTRATE n addmsg /kinetics/Gq/Blocked-rec-Gq /kinetics/Gq/Antag-bind-Rec-Gq PRODUCT n addmsg /kinetics/Gq/Antag-bind-Rec-Gq /kinetics/Gq/Blocked-rec-Gq REAC B A addmsg /kinetics/PKC-active/PKC-act-raf /kinetics/MAPK/craf-1 REAC sA B addmsg /kinetics/PPhosphatase2A/craf-deph /kinetics/MAPK/craf-1 MM_PRD pA addmsg /kinetics/PKC-active/PKC-act-raf /kinetics/MAPK/craf-1* MM_PRD pA addmsg /kinetics/MAPK*/MAPK*-feedback /kinetics/MAPK/craf-1* REAC sA B addmsg /kinetics/PPhosphatase2A/craf-deph /kinetics/MAPK/craf-1* REAC sA B addmsg /kinetics/PPhosphatase2A/craf**-deph /kinetics/MAPK/craf-1* MM_PRD pA addmsg /kinetics/Ras-act-craf /kinetics/MAPK/craf-1* REAC A B addmsg /kinetics/PPhosphatase2A/MAPKK-deph-ser /kinetics/MAPK/MAPKK MM_PRD pA addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1 /kinetics/MAPK/MAPKK REAC sA B addmsg /kinetics/MAPK/MAPKK*/MAPKKtyr /kinetics/MAPK/MAPK REAC sA B addmsg /kinetics/MKP-1/MKP1-tyr-deph /kinetics/MAPK/MAPK MM_PRD pA addmsg /kinetics/MAPK*/MAPK*-feedback /kinetics/MAPK/craf-1** MM_PRD pA addmsg /kinetics/PPhosphatase2A/craf**-deph /kinetics/MAPK/craf-1** REAC sA B addmsg /kinetics/MAPK/MAPKK*/MAPKKtyr /kinetics/MAPK/MAPK-tyr MM_PRD pA addmsg /kinetics/MAPK/MAPKK*/MAPKKthr /kinetics/MAPK/MAPK-tyr REAC sA B addmsg /kinetics/MKP-1/MKP1-tyr-deph /kinetics/MAPK/MAPK-tyr REAC sA B addmsg /kinetics/MKP-1/MKP1-thr-deph /kinetics/MAPK/MAPK-tyr MM_PRD pA addmsg /kinetics/MAPK/MAPKK*/MAPKKtyr /kinetics/MAPK/MAPKK* REAC eA B addmsg /kinetics/MAPK/MAPKK*/MAPKKthr /kinetics/MAPK/MAPKK* REAC eA B addmsg /kinetics/PPhosphatase2A/MAPKK-deph /kinetics/MAPK/MAPKK* REAC sA B addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2 /kinetics/MAPK/MAPKK* MM_PRD pA addmsg /kinetics/MAPK/MAPKK* /kinetics/MAPK/MAPKK*/MAPKKtyr ENZYME n addmsg /kinetics/MAPK/MAPK /kinetics/MAPK/MAPKK*/MAPKKtyr SUBSTRATE n addmsg /kinetics/MAPK/MAPKK* /kinetics/MAPK/MAPKK*/MAPKKthr ENZYME n addmsg /kinetics/MAPK/MAPK-tyr /kinetics/MAPK/MAPKK*/MAPKKthr SUBSTRATE n addmsg /kinetics/PPhosphatase2A/MAPKK-deph /kinetics/MAPK/MAPKK-ser MM_PRD pA addmsg /kinetics/PPhosphatase2A/MAPKK-deph-ser /kinetics/MAPK/MAPKK-ser REAC sA B addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1 /kinetics/MAPK/MAPKK-ser MM_PRD pA addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2 /kinetics/MAPK/MAPKK-ser REAC sA B addmsg /kinetics/Ras-act-craf /kinetics/MAPK/Raf-GTP-Ras* REAC B A addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1 /kinetics/MAPK/Raf-GTP-Ras* REAC eA B addmsg /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2 /kinetics/MAPK/Raf-GTP-Ras* REAC eA B addmsg /kinetics/MAPK/Raf-GTP-Ras* /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1 ENZYME n addmsg /kinetics/MAPK/MAPKK /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1 SUBSTRATE n addmsg /kinetics/MAPK/Raf-GTP-Ras* /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2 ENZYME n addmsg /kinetics/MAPK/MAPKK-ser /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2 SUBSTRATE n addmsg /kinetics/MKP-1/MKP1-tyr-deph /kinetics/MKP-1 REAC eA B addmsg /kinetics/MKP-1/MKP1-thr-deph /kinetics/MKP-1 REAC eA B addmsg /kinetics/MKP-1 /kinetics/MKP-1/MKP1-tyr-deph ENZYME n addmsg /kinetics/MAPK/MAPK-tyr /kinetics/MKP-1/MKP1-tyr-deph SUBSTRATE n addmsg /kinetics/MKP-1 /kinetics/MKP-1/MKP1-thr-deph ENZYME n addmsg /kinetics/MAPK* /kinetics/MKP-1/MKP1-thr-deph SUBSTRATE n addmsg /kinetics/MAPK/Raf-GTP-Ras* /kinetics/Ras-act-craf PRODUCT n addmsg /kinetics/MAPK/craf-1* /kinetics/Ras-act-craf SUBSTRATE n addmsg /kinetics/Ras/GTP-Ras /kinetics/Ras-act-craf SUBSTRATE n addmsg /kinetics/PPhosphatase2A/craf-deph /kinetics/PPhosphatase2A REAC eA B addmsg /kinetics/PPhosphatase2A/MAPKK-deph /kinetics/PPhosphatase2A REAC eA B addmsg /kinetics/PPhosphatase2A/MAPKK-deph-ser /kinetics/PPhosphatase2A REAC eA B addmsg /kinetics/PPhosphatase2A/craf**-deph /kinetics/PPhosphatase2A REAC eA B addmsg /kinetics/PPhosphatase2A /kinetics/PPhosphatase2A/craf-deph ENZYME n addmsg /kinetics/MAPK/craf-1* /kinetics/PPhosphatase2A/craf-deph SUBSTRATE n addmsg /kinetics/PPhosphatase2A /kinetics/PPhosphatase2A/MAPKK-deph ENZYME n addmsg /kinetics/MAPK/MAPKK* /kinetics/PPhosphatase2A/MAPKK-deph SUBSTRATE n addmsg /kinetics/PPhosphatase2A /kinetics/PPhosphatase2A/MAPKK-deph-ser ENZYME n addmsg /kinetics/MAPK/MAPKK-ser /kinetics/PPhosphatase2A/MAPKK-deph-ser SUBSTRATE n addmsg /kinetics/PPhosphatase2A /kinetics/PPhosphatase2A/craf**-deph ENZYME n addmsg /kinetics/MAPK/craf-1** /kinetics/PPhosphatase2A/craf**-deph SUBSTRATE n addmsg /kinetics/BetaGamma /kinetics/Ras/bg-act-GEF SUBSTRATE n addmsg /kinetics/Ras/inact-GEF /kinetics/Ras/bg-act-GEF SUBSTRATE n addmsg /kinetics/Ras/GEF-Gprot-bg /kinetics/Ras/bg-act-GEF PRODUCT n addmsg /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras /kinetics/Ras/GEF-Gprot-bg REAC eA B addmsg /kinetics/Ras/bg-act-GEF /kinetics/Ras/GEF-Gprot-bg REAC B A addmsg /kinetics/Ras/GEF-Gprot-bg /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras ENZYME n addmsg /kinetics/Ras/GDP-Ras /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras SUBSTRATE n addmsg /kinetics/Ras/GEF* /kinetics/Ras/dephosph-GEF SUBSTRATE n addmsg /kinetics/Ras/inact-GEF /kinetics/Ras/dephosph-GEF PRODUCT n addmsg /kinetics/Ras/bg-act-GEF /kinetics/Ras/inact-GEF REAC A B addmsg /kinetics/PKC-active/PKC-act-GEF /kinetics/Ras/inact-GEF REAC sA B addmsg /kinetics/Ras/dephosph-GEF /kinetics/Ras/inact-GEF REAC B A addmsg /kinetics/PKA-active/PKA-phosph-GEF /kinetics/Ras/inact-GEF REAC sA B addmsg /kinetics/Ras/CaM-bind-GEF /kinetics/Ras/inact-GEF REAC A B addmsg /kinetics/Ras/dephosph-inact-GEF* /kinetics/Ras/inact-GEF REAC B A addmsg /kinetics/PKC-active/PKC-act-GEF /kinetics/Ras/GEF* MM_PRD pA addmsg /kinetics/Ras/dephosph-GEF /kinetics/Ras/GEF* REAC A B addmsg /kinetics/Ras/GEF*/GEF*-act-ras /kinetics/Ras/GEF* REAC eA B addmsg /kinetics/Ras/GEF* /kinetics/Ras/GEF*/GEF*-act-ras ENZYME n addmsg /kinetics/Ras/GDP-Ras /kinetics/Ras/GEF*/GEF*-act-ras SUBSTRATE n addmsg /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras /kinetics/Ras/GTP-Ras MM_PRD pA addmsg /kinetics/Ras/GAP/GAP-inact-ras /kinetics/Ras/GTP-Ras REAC sA B addmsg /kinetics/Ras/Ras-intrinsic-GTPase /kinetics/Ras/GTP-Ras REAC A B addmsg /kinetics/Ras/GEF*/GEF*-act-ras /kinetics/Ras/GTP-Ras MM_PRD pA addmsg /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras /kinetics/Ras/GTP-Ras MM_PRD pA addmsg /kinetics/Ras-act-craf /kinetics/Ras/GTP-Ras REAC A B addmsg /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF /kinetics/Ras/GTP-Ras MM_PRD pA addmsg /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras /kinetics/Ras/GDP-Ras REAC sA B addmsg /kinetics/Ras/GAP/GAP-inact-ras /kinetics/Ras/GDP-Ras MM_PRD pA addmsg /kinetics/Ras/Ras-intrinsic-GTPase /kinetics/Ras/GDP-Ras REAC B A addmsg /kinetics/Ras/GEF*/GEF*-act-ras /kinetics/Ras/GDP-Ras REAC sA B addmsg /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras /kinetics/Ras/GDP-Ras REAC sA B addmsg /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF /kinetics/Ras/GDP-Ras REAC sA B addmsg /kinetics/Ras/GTP-Ras /kinetics/Ras/Ras-intrinsic-GTPase SUBSTRATE n addmsg /kinetics/Ras/GDP-Ras /kinetics/Ras/Ras-intrinsic-GTPase PRODUCT n addmsg /kinetics/Ras/GAP* /kinetics/Ras/dephosph-GAP SUBSTRATE n addmsg /kinetics/Ras/GAP /kinetics/Ras/dephosph-GAP PRODUCT n addmsg /kinetics/PKC-active/PKC-inact-GAP /kinetics/Ras/GAP* MM_PRD pA addmsg /kinetics/Ras/dephosph-GAP /kinetics/Ras/GAP* REAC A B addmsg /kinetics/Ras/GAP/GAP-inact-ras /kinetics/Ras/GAP REAC eA B addmsg /kinetics/PKC-active/PKC-inact-GAP /kinetics/Ras/GAP REAC sA B addmsg /kinetics/Ras/dephosph-GAP /kinetics/Ras/GAP REAC B A addmsg /kinetics/Ras/GAP /kinetics/Ras/GAP/GAP-inact-ras ENZYME n addmsg /kinetics/Ras/GTP-Ras /kinetics/Ras/GAP/GAP-inact-ras SUBSTRATE n addmsg /kinetics/PKA-active/PKA-phosph-GEF /kinetics/Ras/inact-GEF* MM_PRD pA addmsg /kinetics/Ras/dephosph-inact-GEF* /kinetics/Ras/inact-GEF* REAC A B addmsg /kinetics/Ras/inact-GEF /kinetics/Ras/CaM-bind-GEF SUBSTRATE n addmsg /kinetics/Ras/CaM-GEF /kinetics/Ras/CaM-bind-GEF PRODUCT n addmsg /kinetics/CaM-Ca4 /kinetics/Ras/CaM-bind-GEF SUBSTRATE n addmsg /kinetics/Ras/CaM-bind-GEF /kinetics/Ras/CaM-GEF REAC B A addmsg /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras /kinetics/Ras/CaM-GEF REAC eA B addmsg /kinetics/Ras/CaM-GEF /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras ENZYME n addmsg /kinetics/Ras/GDP-Ras /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras SUBSTRATE n addmsg /kinetics/Ras/inact-GEF* /kinetics/Ras/dephosph-inact-GEF* SUBSTRATE n addmsg /kinetics/Ras/inact-GEF /kinetics/Ras/dephosph-inact-GEF* PRODUCT n addmsg /kinetics/PKA-active/PKA-phosph-GEF /kinetics/PKA-active REAC eA B addmsg /kinetics/PKA-active/PKA-phosph-I1 /kinetics/PKA-active REAC eA B addmsg /kinetics/PKA/Release-C1 /kinetics/PKA-active REAC B A addmsg /kinetics/PKA/Release-C2 /kinetics/PKA-active REAC B A addmsg /kinetics/PKA/inhib-PKA /kinetics/PKA-active REAC A B addmsg /kinetics/PKA-active/PKA-phosph-GAP /kinetics/PKA-active REAC eA B addmsg /kinetics/PKA-active/phosph-PDE /kinetics/PKA-active REAC eA B addmsg /kinetics/PKA-active /kinetics/PKA-active/PKA-phosph-GEF ENZYME n addmsg /kinetics/Ras/inact-GEF /kinetics/PKA-active/PKA-phosph-GEF SUBSTRATE n addmsg /kinetics/PKA-active /kinetics/PKA-active/PKA-phosph-I1 ENZYME n addmsg /kinetics/PP1/I1 /kinetics/PKA-active/PKA-phosph-I1 SUBSTRATE n addmsg /kinetics/PKA-active /kinetics/PKA-active/PKA-phosph-GAP ENZYME n addmsg /kinetics/PKA-active /kinetics/PKA-active/phosph-PDE ENZYME n addmsg /kinetics/AC/cAMP-PDE /kinetics/PKA-active/phosph-PDE SUBSTRATE n addmsg /kinetics/Ras/CaM-bind-GEF /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/CaMKII/CaMKII-bind-CaM /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/CaMKII/CaMK-thr286-bind-CaM /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/CaM/CaM-Ca3-bind-Ca /kinetics/CaM-Ca4 REAC B A addmsg /kinetics/PP2B/CaMCa4-bind-CaNAB /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/AC/CaM-bind-AC1 /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/AC/CaM_bind_PDE1 /kinetics/CaM-Ca4 REAC A B addmsg /kinetics/Sos/Shc_bind_Sos.Grb2 /kinetics/Shc*.Sos.Grb2 REAC B A addmsg /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF /kinetics/Shc*.Sos.Grb2 REAC eA B addmsg /kinetics/Shc*.Sos.Grb2 /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF ENZYME n addmsg /kinetics/Ras/GDP-Ras /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF SUBSTRATE n addmsg /kinetics/EGFR/act_EGFR /kinetics/EGFR/EGFR REAC A B addmsg /kinetics/EGFR/EGFR /kinetics/EGFR/act_EGFR SUBSTRATE n addmsg /kinetics/EGFR/EGF /kinetics/EGFR/act_EGFR SUBSTRATE n addmsg /kinetics/EGFR/L.EGFR /kinetics/EGFR/act_EGFR PRODUCT n addmsg /kinetics/EGFR/act_EGFR /kinetics/EGFR/L.EGFR REAC B A addmsg /kinetics/EGFR/L.EGFR/phosph_PLC_g /kinetics/EGFR/L.EGFR REAC eA B addmsg /kinetics/EGFR/L.EGFR/phosph_Shc /kinetics/EGFR/L.EGFR REAC eA B addmsg /kinetics/EGFR/Internalize /kinetics/EGFR/L.EGFR REAC A B addmsg /kinetics/EGFR/L.EGFR /kinetics/EGFR/L.EGFR/phosph_PLC_g ENZYME n addmsg /kinetics/PLC_g/Ca.PLC_g /kinetics/EGFR/L.EGFR/phosph_PLC_g SUBSTRATE n addmsg /kinetics/EGFR/L.EGFR /kinetics/EGFR/L.EGFR/phosph_Shc ENZYME n addmsg /kinetics/EGFR/SHC /kinetics/EGFR/L.EGFR/phosph_Shc SUBSTRATE n addmsg /kinetics/EGFR/act_EGFR /kinetics/EGFR/EGF REAC A B addmsg /kinetics/EGFR/dephosph_Shc /kinetics/EGFR/SHC REAC B A addmsg /kinetics/EGFR/L.EGFR/phosph_Shc /kinetics/EGFR/SHC REAC sA B addmsg /kinetics/EGFR/dephosph_Shc /kinetics/EGFR/SHC* REAC A B addmsg /kinetics/Sos/Shc_bind_Sos.Grb2 /kinetics/EGFR/SHC* REAC A B addmsg /kinetics/EGFR/L.EGFR/phosph_Shc /kinetics/EGFR/SHC* MM_PRD pA addmsg /kinetics/EGFR/SHC* /kinetics/EGFR/dephosph_Shc SUBSTRATE n addmsg /kinetics/EGFR/SHC /kinetics/EGFR/dephosph_Shc PRODUCT n addmsg /kinetics/EGFR/Internalize /kinetics/EGFR/Internal_L.EGFR REAC B A addmsg /kinetics/EGFR/L.EGFR /kinetics/EGFR/Internalize SUBSTRATE n addmsg /kinetics/EGFR/Internal_L.EGFR /kinetics/EGFR/Internalize PRODUCT n addmsg /kinetics/Sos/Sos.Grb2 /kinetics/Sos/Shc_bind_Sos.Grb2 SUBSTRATE n addmsg /kinetics/EGFR/SHC* /kinetics/Sos/Shc_bind_Sos.Grb2 SUBSTRATE n addmsg /kinetics/Shc*.Sos.Grb2 /kinetics/Sos/Shc_bind_Sos.Grb2 PRODUCT n addmsg /kinetics/Sos/Grb2_bind_Sos* /kinetics/Sos/Sos*.Grb2 REAC B A addmsg /kinetics/Sos/Sos* /kinetics/Sos/Grb2_bind_Sos* SUBSTRATE n addmsg /kinetics/Sos/Grb2 /kinetics/Sos/Grb2_bind_Sos* SUBSTRATE n addmsg /kinetics/Sos/Sos*.Grb2 /kinetics/Sos/Grb2_bind_Sos* PRODUCT n addmsg /kinetics/Sos/Grb2_bind_Sos /kinetics/Sos/Grb2 REAC A B addmsg /kinetics/Sos/Grb2_bind_Sos* /kinetics/Sos/Grb2 REAC A B addmsg /kinetics/Sos/Grb2_bind_Sos /kinetics/Sos/Sos.Grb2 REAC B A addmsg /kinetics/Sos/Shc_bind_Sos.Grb2 /kinetics/Sos/Sos.Grb2 REAC A B addmsg /kinetics/MAPK*/phosph_Sos /kinetics/Sos/Sos* MM_PRD pA addmsg /kinetics/Sos/Grb2_bind_Sos* /kinetics/Sos/Sos* REAC A B addmsg /kinetics/Sos/dephosph_Sos /kinetics/Sos/Sos* REAC A B addmsg /kinetics/Sos/Sos* /kinetics/Sos/dephosph_Sos SUBSTRATE n addmsg /kinetics/Sos/Sos /kinetics/Sos/dephosph_Sos PRODUCT n addmsg /kinetics/Sos/Grb2 /kinetics/Sos/Grb2_bind_Sos SUBSTRATE n addmsg /kinetics/Sos/Sos.Grb2 /kinetics/Sos/Grb2_bind_Sos PRODUCT n addmsg /kinetics/Sos/Sos /kinetics/Sos/Grb2_bind_Sos SUBSTRATE n addmsg /kinetics/Sos/Grb2_bind_Sos /kinetics/Sos/Sos REAC A B addmsg /kinetics/MAPK*/phosph_Sos /kinetics/Sos/Sos REAC sA B addmsg /kinetics/Sos/dephosph_Sos /kinetics/Sos/Sos REAC B A addmsg /kinetics/PLC_g/Ca_act_PLC_g /kinetics/PLC_g/PLC_g REAC A B addmsg /kinetics/PLC_g/PLC_g /kinetics/PLC_g/Ca_act_PLC_g SUBSTRATE n addmsg /kinetics/Ca /kinetics/PLC_g/Ca_act_PLC_g SUBSTRATE n addmsg /kinetics/PLC_g/Ca.PLC_g /kinetics/PLC_g/Ca_act_PLC_g PRODUCT n addmsg /kinetics/Ca /kinetics/PLC_g/Ca_act_PLC_g* SUBSTRATE n addmsg /kinetics/PLC_g/PLC_G* /kinetics/PLC_g/Ca_act_PLC_g* SUBSTRATE n addmsg /kinetics/PLC_g/Ca.PLC_g* /kinetics/PLC_g/Ca_act_PLC_g* PRODUCT n addmsg /kinetics/PLC_g/Ca.PLC_g* /kinetics/PLC_g/dephosph_PLC_g SUBSTRATE n addmsg /kinetics/PLC_g/Ca.PLC_g /kinetics/PLC_g/dephosph_PLC_g PRODUCT n addmsg /kinetics/PLC_g/Ca_act_PLC_g* /kinetics/PLC_g/PLC_G* REAC A B addmsg /kinetics/PLC_g/Ca_act_PLC_g /kinetics/PLC_g/Ca.PLC_g REAC B A addmsg /kinetics/EGFR/L.EGFR/phosph_PLC_g /kinetics/PLC_g/Ca.PLC_g REAC sA B addmsg /kinetics/PLC_g/dephosph_PLC_g /kinetics/PLC_g/Ca.PLC_g REAC B A addmsg /kinetics/PLC_g/Ca.PLC_g /kinetics/PLC_g/Ca.PLC_g/PIP2_hydrolysis ENZYME n addmsg /kinetics/PIP2 /kinetics/PLC_g/Ca.PLC_g/PIP2_hydrolysis SUBSTRATE n addmsg /kinetics/PLC_g/Ca_act_PLC_g* /kinetics/PLC_g/Ca.PLC_g* REAC B A addmsg /kinetics/EGFR/L.EGFR/phosph_PLC_g /kinetics/PLC_g/Ca.PLC_g* MM_PRD pA addmsg /kinetics/PLC_g/dephosph_PLC_g /kinetics/PLC_g/Ca.PLC_g* REAC A B addmsg /kinetics/PLC_g/Ca.PLC_g* /kinetics/PLC_g/Ca.PLC_g*/PIP2_hydrolysis ENZYME n addmsg /kinetics/PIP2 /kinetics/PLC_g/Ca.PLC_g*/PIP2_hydrolysis SUBSTRATE n addmsg /kinetics/CaMKII/CaMKII-bind-CaM /kinetics/CaMKII/CaMKII REAC A B addmsg /kinetics/PP1-active/Deph-thr306 /kinetics/CaMKII/CaMKII MM_PRD pA addmsg /kinetics/PP1-active/Deph_thr286b /kinetics/CaMKII/CaMKII MM_PRD pA addmsg /kinetics/CaMKII/basal-activity /kinetics/CaMKII/CaMKII REAC A B addmsg /kinetics/CaMKII/CaMKII-bind-CaM /kinetics/CaMKII/CaMKII-CaM REAC B A addmsg /kinetics/PP1-active/Deph-thr286 /kinetics/CaMKII/CaMKII-CaM MM_PRD pA addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 /kinetics/CaMKII/CaMKII-CaM REAC sA B addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 /kinetics/CaMKII/CaMKII-CaM REAC sA B addmsg /kinetics/CaMKII/CaMK-thr286-bind-CaM /kinetics/CaMKII/CaMKII-thr286*-CaM REAC B A addmsg /kinetics/PP1-active/Deph-thr286 /kinetics/CaMKII/CaMKII-thr286*-CaM REAC sA B addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 /kinetics/CaMKII/CaMKII-thr286*-CaM MM_PRD pA addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 /kinetics/CaMKII/CaMKII-thr286*-CaM MM_PRD pA addmsg /kinetics/PP1-active/Deph-thr305 /kinetics/CaMKII/CaMKII*** REAC sA B addmsg /kinetics/PP1-active/Deph-thr286c /kinetics/CaMKII/CaMKII*** REAC sA B addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 /kinetics/CaMKII/CaMKII*** MM_PRD pA addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 /kinetics/CaMKII/CaMKII*** MM_PRD pA addmsg /kinetics/CaM-Ca4 /kinetics/CaMKII/CaMKII-bind-CaM SUBSTRATE n addmsg /kinetics/CaMKII/CaMKII /kinetics/CaMKII/CaMKII-bind-CaM SUBSTRATE n addmsg /kinetics/CaMKII/CaMKII-CaM /kinetics/CaMKII/CaMKII-bind-CaM PRODUCT n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/CaMKII/CaMK-thr286-bind-CaM SUBSTRATE n addmsg /kinetics/CaM-Ca4 /kinetics/CaMKII/CaMK-thr286-bind-CaM SUBSTRATE n addmsg /kinetics/CaMKII/CaMKII-thr286*-CaM /kinetics/CaMKII/CaMK-thr286-bind-CaM PRODUCT n addmsg /kinetics/CaMKII/CaMK-thr286-bind-CaM /kinetics/CaMKII/CaMKII-thr286 REAC A B addmsg /kinetics/PP1-active/Deph-thr305 /kinetics/CaMKII/CaMKII-thr286 MM_PRD pA addmsg /kinetics/PP1-active/Deph_thr286b /kinetics/CaMKII/CaMKII-thr286 REAC sA B addmsg /kinetics/CaMKII/basal-activity /kinetics/CaMKII/CaMKII-thr286 REAC B A addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 /kinetics/CaMKII/CaMKII-thr286 REAC sA B addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 /kinetics/CaMKII/CaMKII-thr286 REAC sA B addmsg /kinetics/PP1-active/Deph-thr306 /kinetics/CaMKII/CaMK-thr306 REAC sA B addmsg /kinetics/PP1-active/Deph-thr286c /kinetics/CaMKII/CaMK-thr306 MM_PRD pA addmsg /kinetics/CaMKII/CaMKII /kinetics/CaMKII/basal-activity SUBSTRATE n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/CaMKII/basal-activity PRODUCT n addmsg /kinetics/CaMKII/CaMKII-CaM /kinetics/CaMKII/tot_CaM_CaMKII SUMTOTAL n nInit addmsg /kinetics/CaMKII/CaMKII-thr286*-CaM /kinetics/CaMKII/tot_CaM_CaMKII SUMTOTAL n nInit addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 /kinetics/CaMKII/tot_CaM_CaMKII REAC eA B addmsg /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 /kinetics/CaMKII/tot_CaM_CaMKII REAC eA B addmsg /kinetics/CaMKII/tot_CaM_CaMKII /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 ENZYME n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 SUBSTRATE n addmsg /kinetics/CaMKII/total-CaMKII /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305 INTRAMOL n addmsg /kinetics/CaMKII/tot_CaM_CaMKII /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 ENZYME n addmsg /kinetics/CaMKII/CaMKII-CaM /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 SUBSTRATE n addmsg /kinetics/CaMKII/total-CaMKII /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286 INTRAMOL n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/CaMKII/tot_autonomous_CaMKII SUMTOTAL n nInit addmsg /kinetics/CaMKII/CaMKII*** /kinetics/CaMKII/tot_autonomous_CaMKII SUMTOTAL n nInit addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 /kinetics/CaMKII/tot_autonomous_CaMKII REAC eA B addmsg /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 /kinetics/CaMKII/tot_autonomous_CaMKII REAC eA B addmsg /kinetics/CaMKII/tot_autonomous_CaMKII /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 ENZYME n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 SUBSTRATE n addmsg /kinetics/CaMKII/total-CaMKII /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305 INTRAMOL n addmsg /kinetics/CaMKII/tot_autonomous_CaMKII /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 ENZYME n addmsg /kinetics/CaMKII/CaMKII-CaM /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 SUBSTRATE n addmsg /kinetics/CaMKII/total-CaMKII /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286 INTRAMOL n addmsg /kinetics/PP1-active/Deph-thr286 /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1-active/Deph-thr305 /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1-active/Deph-thr306 /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1-active/Deph_thr286b /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1-active/Deph-thr286c /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1-active/Deph-thr305b /kinetics/PP1-active REAC eA B addmsg /kinetics/PP1/Inact-PP1 /kinetics/PP1-active REAC A B addmsg /kinetics/PP1/dissoc-PP1-I1 /kinetics/PP1-active REAC B A addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph-thr286 ENZYME n addmsg /kinetics/CaMKII/CaMKII-thr286*-CaM /kinetics/PP1-active/Deph-thr286 SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph-thr305 ENZYME n addmsg /kinetics/CaMKII/CaMKII*** /kinetics/PP1-active/Deph-thr305 SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph-thr306 ENZYME n addmsg /kinetics/CaMKII/CaMK-thr306 /kinetics/PP1-active/Deph-thr306 SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph-thr286c ENZYME n addmsg /kinetics/CaMKII/CaMKII*** /kinetics/PP1-active/Deph-thr286c SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph_thr286b ENZYME n addmsg /kinetics/CaMKII/CaMKII-thr286 /kinetics/PP1-active/Deph_thr286b SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1-active/Deph-thr305b ENZYME n addmsg /kinetics/CaM/CaM-TR2-bind-Ca /kinetics/CaM/CaM REAC A B addmsg /kinetics/CaM/neurogranin-bind-CaM /kinetics/CaM/CaM REAC A B addmsg /kinetics/PKC-active/PKC-phosph-ng-CaM /kinetics/CaM/CaM MM_PRD pA addmsg /kinetics/CaM/CaM /kinetics/CaM/CaM-TR2-bind-Ca SUBSTRATE n addmsg /kinetics/CaM-TR2-Ca2 /kinetics/CaM/CaM-TR2-bind-Ca PRODUCT n addmsg /kinetics/Ca /kinetics/CaM/CaM-TR2-bind-Ca SUBSTRATE n addmsg /kinetics/Ca /kinetics/CaM/CaM-TR2-bind-Ca SUBSTRATE n addmsg /kinetics/CaM-TR2-Ca2 /kinetics/CaM/CaM-TR2-Ca2-bind-Ca SUBSTRATE n addmsg /kinetics/Ca /kinetics/CaM/CaM-TR2-Ca2-bind-Ca SUBSTRATE n addmsg /kinetics/CaM-Ca3 /kinetics/CaM/CaM-TR2-Ca2-bind-Ca PRODUCT n addmsg /kinetics/CaM-Ca3 /kinetics/CaM/CaM-Ca3-bind-Ca SUBSTRATE n addmsg /kinetics/Ca /kinetics/CaM/CaM-Ca3-bind-Ca SUBSTRATE n addmsg /kinetics/CaM-Ca4 /kinetics/CaM/CaM-Ca3-bind-Ca PRODUCT n addmsg /kinetics/CaM/neurogranin-bind-CaM /kinetics/CaM/neurogranin-CaM REAC B A addmsg /kinetics/PKC-active/PKC-phosph-ng-CaM /kinetics/CaM/neurogranin-CaM REAC sA B addmsg /kinetics/CaM/neurogranin /kinetics/CaM/neurogranin-bind-CaM SUBSTRATE n addmsg /kinetics/CaM/neurogranin-CaM /kinetics/CaM/neurogranin-bind-CaM PRODUCT n addmsg /kinetics/CaM/CaM /kinetics/CaM/neurogranin-bind-CaM SUBSTRATE n addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin /kinetics/CaM/neurogranin* REAC sA B addmsg /kinetics/PKC-active/PKC-phosph-neurogranin /kinetics/CaM/neurogranin* MM_PRD pA addmsg /kinetics/PKC-active/PKC-phosph-ng-CaM /kinetics/CaM/neurogranin* MM_PRD pA addmsg /kinetics/CaM/dephosph-neurogranin /kinetics/CaM/neurogranin* REAC A B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin /kinetics/CaM/neurogranin MM_PRD pA addmsg /kinetics/CaM/neurogranin-bind-CaM /kinetics/CaM/neurogranin REAC A B addmsg /kinetics/PKC-active/PKC-phosph-neurogranin /kinetics/CaM/neurogranin REAC sA B addmsg /kinetics/CaM/dephosph-neurogranin /kinetics/CaM/neurogranin REAC B A addmsg /kinetics/CaM/neurogranin* /kinetics/CaM/dephosph-neurogranin SUBSTRATE n addmsg /kinetics/CaM/neurogranin /kinetics/CaM/dephosph-neurogranin PRODUCT n addmsg /kinetics/CaM/CaM-TR2-Ca2-bind-Ca /kinetics/CaM-Ca3 REAC B A addmsg /kinetics/CaM/CaM-Ca3-bind-Ca /kinetics/CaM-Ca3 REAC A B addmsg /kinetics/PP2B/CaMCa3-bind-CaNAB /kinetics/CaM-Ca3 REAC A B addmsg /kinetics/CaM/CaM-TR2-bind-Ca /kinetics/CaM-TR2-Ca2 REAC B A addmsg /kinetics/CaM/CaM-TR2-Ca2-bind-Ca /kinetics/CaM-TR2-Ca2 REAC A B addmsg /kinetics/PP2B/CaM-Ca2-bind-CaNAB /kinetics/CaM-TR2-Ca2 REAC A B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin /kinetics/CaM(Ca)n-CaNAB REAC eA B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1 /kinetics/CaM(Ca)n-CaNAB REAC eA B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I* /kinetics/CaM(Ca)n-CaNAB REAC eA B addmsg /kinetics/PP2B/CaMCa4-CaNAB /kinetics/CaM(Ca)n-CaNAB SUMTOTAL n nInit addmsg /kinetics/PP2B/CaMCa3-CaNAB /kinetics/CaM(Ca)n-CaNAB SUMTOTAL n nInit addmsg /kinetics/PP2B/CaMCa2-CANAB /kinetics/CaM(Ca)n-CaNAB SUMTOTAL n nInit addmsg /kinetics/CaM(Ca)n-CaNAB /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin ENZYME n addmsg /kinetics/CaM/neurogranin* /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin SUBSTRATE n addmsg /kinetics/CaM(Ca)n-CaNAB /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1 ENZYME n addmsg /kinetics/PP1/I1* /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1 SUBSTRATE n addmsg /kinetics/CaM(Ca)n-CaNAB /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I* ENZYME n addmsg /kinetics/PP1/PP1-I1* /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I* SUBSTRATE n addmsg /kinetics/PKA-active/PKA-phosph-I1 /kinetics/PP1/I1 REAC sA B addmsg /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM /kinetics/PP1/I1 MM_PRD pA addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1 /kinetics/PP1/I1 MM_PRD pA addmsg /kinetics/PP2A/PP2A-dephosph-I1 /kinetics/PP1/I1 MM_PRD pA addmsg /kinetics/PP1/dissoc-PP1-I1 /kinetics/PP1/I1 REAC B A addmsg /kinetics/PP1/Inact-PP1 /kinetics/PP1/I1* REAC A B addmsg /kinetics/PKA-active/PKA-phosph-I1 /kinetics/PP1/I1* MM_PRD pA addmsg /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM /kinetics/PP1/I1* REAC sA B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1 /kinetics/PP1/I1* REAC sA B addmsg /kinetics/PP2A/PP2A-dephosph-I1 /kinetics/PP1/I1* REAC sA B addmsg /kinetics/PP1/PP1-I1* /kinetics/PP1/Inact-PP1 PRODUCT n addmsg /kinetics/PP1/I1* /kinetics/PP1/Inact-PP1 SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1/Inact-PP1 SUBSTRATE n addmsg /kinetics/PP1/Inact-PP1 /kinetics/PP1/PP1-I1* REAC B A addmsg /kinetics/PP2A/PP2A-dephosph-PP1-I* /kinetics/PP1/PP1-I1* REAC sA B addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I* /kinetics/PP1/PP1-I1* REAC sA B addmsg /kinetics/PP1/dissoc-PP1-I1 /kinetics/PP1/PP1-I1 REAC A B addmsg /kinetics/PP2A/PP2A-dephosph-PP1-I* /kinetics/PP1/PP1-I1 MM_PRD pA addmsg /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I* /kinetics/PP1/PP1-I1 MM_PRD pA addmsg /kinetics/PP1/PP1-I1 /kinetics/PP1/dissoc-PP1-I1 SUBSTRATE n addmsg /kinetics/PP1-active /kinetics/PP1/dissoc-PP1-I1 PRODUCT n addmsg /kinetics/PP1/I1 /kinetics/PP1/dissoc-PP1-I1 PRODUCT n addmsg /kinetics/PP2A/PP2A-dephosph-I1 /kinetics/PP2A REAC eA B addmsg /kinetics/PP2A/PP2A-dephosph-PP1-I* /kinetics/PP2A REAC eA B addmsg /kinetics/PP2A /kinetics/PP2A/PP2A-dephosph-I1 ENZYME n addmsg /kinetics/PP1/I1* /kinetics/PP2A/PP2A-dephosph-I1 SUBSTRATE n addmsg /kinetics/PP2A /kinetics/PP2A/PP2A-dephosph-PP1-I* ENZYME n addmsg /kinetics/PP1/PP1-I1* /kinetics/PP2A/PP2A-dephosph-PP1-I* SUBSTRATE n addmsg /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM /kinetics/CaNAB-Ca4 REAC eA B addmsg /kinetics/PP2B/Ca-bind-CaNAB-Ca2 /kinetics/CaNAB-Ca4 REAC B A addmsg /kinetics/PP2B/CaM-Ca2-bind-CaNAB /kinetics/CaNAB-Ca4 REAC A B addmsg /kinetics/PP2B/CaMCa4-bind-CaNAB /kinetics/CaNAB-Ca4 REAC A B addmsg /kinetics/PP2B/CaMCa3-bind-CaNAB /kinetics/CaNAB-Ca4 REAC A B addmsg /kinetics/CaNAB-Ca4 /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM ENZYME n addmsg /kinetics/PP1/I1* /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM SUBSTRATE n addmsg /kinetics/PP2B/Ca-bind-CaNAB /kinetics/PP2B/CaNAB REAC A B addmsg /kinetics/PP2B/Ca-bind-CaNAB /kinetics/PP2B/CaNAB-Ca2 REAC B A addmsg /kinetics/PP2B/Ca-bind-CaNAB-Ca2 /kinetics/PP2B/CaNAB-Ca2 REAC A B addmsg /kinetics/CaNAB-Ca4 /kinetics/PP2B/Ca-bind-CaNAB-Ca2 PRODUCT n addmsg /kinetics/Ca /kinetics/PP2B/Ca-bind-CaNAB-Ca2 SUBSTRATE n addmsg /kinetics/Ca /kinetics/PP2B/Ca-bind-CaNAB-Ca2 SUBSTRATE n addmsg /kinetics/PP2B/CaNAB-Ca2 /kinetics/PP2B/Ca-bind-CaNAB-Ca2 SUBSTRATE n addmsg /kinetics/PP2B/CaNAB /kinetics/PP2B/Ca-bind-CaNAB SUBSTRATE n addmsg /kinetics/PP2B/CaNAB-Ca2 /kinetics/PP2B/Ca-bind-CaNAB PRODUCT n addmsg /kinetics/Ca /kinetics/PP2B/Ca-bind-CaNAB SUBSTRATE n addmsg /kinetics/Ca /kinetics/PP2B/Ca-bind-CaNAB SUBSTRATE n addmsg /kinetics/CaNAB-Ca4 /kinetics/PP2B/CaM-Ca2-bind-CaNAB SUBSTRATE n addmsg /kinetics/CaM-TR2-Ca2 /kinetics/PP2B/CaM-Ca2-bind-CaNAB SUBSTRATE n addmsg /kinetics/PP2B/CaMCa2-CANAB /kinetics/PP2B/CaM-Ca2-bind-CaNAB PRODUCT n addmsg /kinetics/PP2B/CaMCa3-bind-CaNAB /kinetics/PP2B/CaMCa3-CaNAB REAC B A addmsg /kinetics/PP2B/CaM-Ca2-bind-CaNAB /kinetics/PP2B/CaMCa2-CANAB REAC B A addmsg /kinetics/PP2B/CaMCa4-bind-CaNAB /kinetics/PP2B/CaMCa4-CaNAB REAC B A addmsg /kinetics/PP2B/CaMCa3-CaNAB /kinetics/PP2B/CaMCa3-bind-CaNAB PRODUCT n addmsg /kinetics/CaM-Ca3 /kinetics/PP2B/CaMCa3-bind-CaNAB SUBSTRATE n addmsg /kinetics/CaNAB-Ca4 /kinetics/PP2B/CaMCa3-bind-CaNAB SUBSTRATE n addmsg /kinetics/PP2B/CaMCa4-CaNAB /kinetics/PP2B/CaMCa4-bind-CaNAB PRODUCT n addmsg /kinetics/CaM-Ca4 /kinetics/PP2B/CaMCa4-bind-CaNAB SUBSTRATE n addmsg /kinetics/CaNAB-Ca4 /kinetics/PP2B/CaMCa4-bind-CaNAB SUBSTRATE n addmsg /kinetics/PKA/cAMP-bind-site-B1 /kinetics/PKA/R2C2 REAC A B addmsg /kinetics/PKA/cAMP-bind-site-B1 /kinetics/PKA/R2C2-cAMP REAC B A addmsg /kinetics/PKA/cAMP-bind-site-B2 /kinetics/PKA/R2C2-cAMP REAC A B addmsg /kinetics/PKA/R2C2 /kinetics/PKA/cAMP-bind-site-B1 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP /kinetics/PKA/cAMP-bind-site-B1 PRODUCT n addmsg /kinetics/cAMP /kinetics/PKA/cAMP-bind-site-B1 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP /kinetics/PKA/cAMP-bind-site-B2 SUBSTRATE n addmsg /kinetics/cAMP /kinetics/PKA/cAMP-bind-site-B2 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP2 /kinetics/PKA/cAMP-bind-site-B2 PRODUCT n addmsg /kinetics/PKA/R2C2-cAMP2 /kinetics/PKA/cAMP-bind-site-A1 SUBSTRATE n addmsg /kinetics/cAMP /kinetics/PKA/cAMP-bind-site-A1 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP3 /kinetics/PKA/cAMP-bind-site-A1 PRODUCT n addmsg /kinetics/cAMP /kinetics/PKA/cAMP-bind-site-A2 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP3 /kinetics/PKA/cAMP-bind-site-A2 SUBSTRATE n addmsg /kinetics/PKA/R2C2-cAMP4 /kinetics/PKA/cAMP-bind-site-A2 PRODUCT n addmsg /kinetics/PKA/cAMP-bind-site-B2 /kinetics/PKA/R2C2-cAMP2 REAC B A addmsg /kinetics/PKA/cAMP-bind-site-A1 /kinetics/PKA/R2C2-cAMP2 REAC A B addmsg /kinetics/PKA/cAMP-bind-site-A1 /kinetics/PKA/R2C2-cAMP3 REAC B A addmsg /kinetics/PKA/cAMP-bind-site-A2 /kinetics/PKA/R2C2-cAMP3 REAC A B addmsg /kinetics/PKA/cAMP-bind-site-A2 /kinetics/PKA/R2C2-cAMP4 REAC B A addmsg /kinetics/PKA/Release-C1 /kinetics/PKA/R2C2-cAMP4 REAC A B addmsg /kinetics/PKA/Release-C1 /kinetics/PKA/R2C-cAMP4 REAC B A addmsg /kinetics/PKA/Release-C2 /kinetics/PKA/R2C-cAMP4 REAC A B addmsg /kinetics/PKA/Release-C2 /kinetics/PKA/R2-cAMP4 REAC B A addmsg /kinetics/PKA/R2C2-cAMP4 /kinetics/PKA/Release-C1 SUBSTRATE n addmsg /kinetics/PKA-active /kinetics/PKA/Release-C1 PRODUCT n addmsg /kinetics/PKA/R2C-cAMP4 /kinetics/PKA/Release-C1 PRODUCT n addmsg /kinetics/PKA/R2C-cAMP4 /kinetics/PKA/Release-C2 SUBSTRATE n addmsg /kinetics/PKA-active /kinetics/PKA/Release-C2 PRODUCT n addmsg /kinetics/PKA/R2-cAMP4 /kinetics/PKA/Release-C2 PRODUCT n addmsg /kinetics/PKA/inhib-PKA /kinetics/PKA/PKA-inhibitor REAC A B addmsg /kinetics/PKA-active /kinetics/PKA/inhib-PKA SUBSTRATE n addmsg /kinetics/PKA/PKA-inhibitor /kinetics/PKA/inhib-PKA SUBSTRATE n addmsg /kinetics/PKA/inhibited-PKA /kinetics/PKA/inhib-PKA PRODUCT n addmsg /kinetics/PKA/inhib-PKA /kinetics/PKA/inhibited-PKA REAC B A addmsg /kinetics/PKA/cAMP-bind-site-B1 /kinetics/cAMP REAC A B addmsg /kinetics/PKA/cAMP-bind-site-B2 /kinetics/cAMP REAC A B addmsg /kinetics/PKA/cAMP-bind-site-A1 /kinetics/cAMP REAC A B addmsg /kinetics/PKA/cAMP-bind-site-A2 /kinetics/cAMP REAC A B addmsg /kinetics/AC/AC2*/kenz /kinetics/cAMP MM_PRD pA addmsg /kinetics/AC/AC2-Gs/kenz /kinetics/cAMP MM_PRD pA addmsg /kinetics/AC/AC1-CaM/kenz /kinetics/cAMP MM_PRD pA addmsg /kinetics/AC/AC1-Gs/kenz /kinetics/cAMP MM_PRD pA addmsg /kinetics/AC/AC2*-Gs/kenz /kinetics/cAMP MM_PRD pA addmsg /kinetics/AC/cAMP-PDE*/PDE* /kinetics/cAMP REAC sA B addmsg /kinetics/AC/cAMP-PDE/PDE /kinetics/cAMP REAC sA B addmsg /kinetics/AC/PDE1/PDE1 /kinetics/cAMP REAC sA B addmsg /kinetics/AC/CaM.PDE1/CaM.PDE1 /kinetics/cAMP REAC sA B addmsg /kinetics/AC/AC2*/kenz /kinetics/AC/ATP REAC sA B addmsg /kinetics/AC/AC2-Gs/kenz /kinetics/AC/ATP REAC sA B addmsg /kinetics/AC/AC1-CaM/kenz /kinetics/AC/ATP REAC sA B addmsg /kinetics/AC/AC1-Gs/kenz /kinetics/AC/ATP REAC sA B addmsg /kinetics/AC/AC2*-Gs/kenz /kinetics/AC/ATP REAC sA B addmsg /kinetics/AC/CaM-bind-AC1 /kinetics/AC/AC1-CaM REAC B A addmsg /kinetics/AC/AC1-CaM /kinetics/AC/AC1-CaM/kenz ENZYME n addmsg /kinetics/AC/ATP /kinetics/AC/AC1-CaM/kenz SUBSTRATE n addmsg /kinetics/AC/CaM-bind-AC1 /kinetics/AC/AC1 REAC A B addmsg /kinetics/AC/Gs-bind-AC1 /kinetics/AC/AC1 REAC A B addmsg /kinetics/CaM-Ca4 /kinetics/AC/CaM-bind-AC1 SUBSTRATE n addmsg /kinetics/AC/AC1-CaM /kinetics/AC/CaM-bind-AC1 PRODUCT n addmsg /kinetics/AC/AC1 /kinetics/AC/CaM-bind-AC1 SUBSTRATE n addmsg /kinetics/PKC-active/phosph-AC2 /kinetics/AC/AC2* MM_PRD pA addmsg /kinetics/AC/dephosph-AC2 /kinetics/AC/AC2* REAC A B addmsg /kinetics/AC/Gs-bind-AC2* /kinetics/AC/AC2* REAC A B addmsg /kinetics/AC/AC2* /kinetics/AC/AC2*/kenz ENZYME n addmsg /kinetics/AC/ATP /kinetics/AC/AC2*/kenz SUBSTRATE n addmsg /kinetics/AC/Gs-bind-AC2 /kinetics/AC/AC2-Gs REAC B A addmsg /kinetics/AC/AC2-Gs /kinetics/AC/AC2-Gs/kenz ENZYME n addmsg /kinetics/AC/ATP /kinetics/AC/AC2-Gs/kenz SUBSTRATE n addmsg /kinetics/AC/Gs-bind-AC2 /kinetics/AC/AC2 REAC A B addmsg /kinetics/PKC-active/phosph-AC2 /kinetics/AC/AC2 REAC sA B addmsg /kinetics/AC/dephosph-AC2 /kinetics/AC/AC2 REAC B A addmsg /kinetics/AC/AC2* /kinetics/AC/dephosph-AC2 SUBSTRATE n addmsg /kinetics/AC/AC2 /kinetics/AC/dephosph-AC2 PRODUCT n addmsg /kinetics/AC/Gs-bind-AC1 /kinetics/AC/AC1-Gs REAC B A addmsg /kinetics/AC/AC1-Gs /kinetics/AC/AC1-Gs/kenz ENZYME n addmsg /kinetics/AC/ATP /kinetics/AC/AC1-Gs/kenz SUBSTRATE n addmsg /kinetics/AC/AC2 /kinetics/AC/Gs-bind-AC2 SUBSTRATE n addmsg /kinetics/AC/AC2-Gs /kinetics/AC/Gs-bind-AC2 PRODUCT n addmsg /kinetics/Gs-alpha /kinetics/AC/Gs-bind-AC2 SUBSTRATE n addmsg /kinetics/Gs-alpha /kinetics/AC/Gs-bind-AC1 SUBSTRATE n addmsg /kinetics/AC/AC1 /kinetics/AC/Gs-bind-AC1 SUBSTRATE n addmsg /kinetics/AC/AC1-Gs /kinetics/AC/Gs-bind-AC1 PRODUCT n addmsg /kinetics/AC/cAMP-PDE*/PDE* /kinetics/AC/AMP MM_PRD pA addmsg /kinetics/AC/cAMP-PDE/PDE /kinetics/AC/AMP MM_PRD pA addmsg /kinetics/AC/CaM.PDE1/CaM.PDE1 /kinetics/AC/AMP MM_PRD pA addmsg /kinetics/AC/PDE1/PDE1 /kinetics/AC/AMP MM_PRD pA addmsg /kinetics/AC/Gs-bind-AC2* /kinetics/AC/AC2*-Gs REAC B A addmsg /kinetics/AC/AC2*-Gs /kinetics/AC/AC2*-Gs/kenz ENZYME n addmsg /kinetics/AC/ATP /kinetics/AC/AC2*-Gs/kenz SUBSTRATE n addmsg /kinetics/Gs-alpha /kinetics/AC/Gs-bind-AC2* SUBSTRATE n addmsg /kinetics/AC/AC2*-Gs /kinetics/AC/Gs-bind-AC2* PRODUCT n addmsg /kinetics/AC/AC2* /kinetics/AC/Gs-bind-AC2* SUBSTRATE n addmsg /kinetics/AC/cAMP-PDE/PDE /kinetics/AC/cAMP-PDE REAC eA B addmsg /kinetics/AC/dephosph-PDE /kinetics/AC/cAMP-PDE REAC B A addmsg /kinetics/PKA-active/phosph-PDE /kinetics/AC/cAMP-PDE REAC sA B addmsg /kinetics/AC/cAMP-PDE /kinetics/AC/cAMP-PDE/PDE ENZYME n addmsg /kinetics/cAMP /kinetics/AC/cAMP-PDE/PDE SUBSTRATE n addmsg /kinetics/AC/cAMP-PDE*/PDE* /kinetics/AC/cAMP-PDE* REAC eA B addmsg /kinetics/AC/dephosph-PDE /kinetics/AC/cAMP-PDE* REAC A B addmsg /kinetics/PKA-active/phosph-PDE /kinetics/AC/cAMP-PDE* MM_PRD pA addmsg /kinetics/AC/cAMP-PDE* /kinetics/AC/cAMP-PDE*/PDE* ENZYME n addmsg /kinetics/cAMP /kinetics/AC/cAMP-PDE*/PDE* SUBSTRATE n addmsg /kinetics/AC/cAMP-PDE* /kinetics/AC/dephosph-PDE SUBSTRATE n addmsg /kinetics/AC/cAMP-PDE /kinetics/AC/dephosph-PDE PRODUCT n addmsg /kinetics/AC/PDE1/PDE1 /kinetics/AC/PDE1 REAC eA B addmsg /kinetics/AC/CaM_bind_PDE1 /kinetics/AC/PDE1 REAC A B addmsg /kinetics/AC/PDE1 /kinetics/AC/PDE1/PDE1 ENZYME n addmsg /kinetics/cAMP /kinetics/AC/PDE1/PDE1 SUBSTRATE n addmsg /kinetics/AC/CaM.PDE1/CaM.PDE1 /kinetics/AC/CaM.PDE1 REAC eA B addmsg /kinetics/AC/CaM_bind_PDE1 /kinetics/AC/CaM.PDE1 REAC B A addmsg /kinetics/AC/CaM.PDE1 /kinetics/AC/CaM.PDE1/CaM.PDE1 ENZYME n addmsg /kinetics/cAMP /kinetics/AC/CaM.PDE1/CaM.PDE1 SUBSTRATE n addmsg /kinetics/AC/PDE1 /kinetics/AC/CaM_bind_PDE1 SUBSTRATE n addmsg /kinetics/AC/CaM.PDE1 /kinetics/AC/CaM_bind_PDE1 PRODUCT n addmsg /kinetics/CaM-Ca4 /kinetics/AC/CaM_bind_PDE1 SUBSTRATE n addmsg /kinetics/AC/Gs-bind-AC2 /kinetics/Gs-alpha REAC A B addmsg /kinetics/AC/Gs-bind-AC1 /kinetics/Gs-alpha REAC A B addmsg /kinetics/AC/Gs-bind-AC2* /kinetics/Gs-alpha REAC A B addmsg /kinetics/Glu /kinetics/remove_glu SUBSTRATE n addmsg /kinetics/synapse /kinetics/remove_glu PRODUCT n addmsg /kinetics/remove_glu /kinetics/synapse REAC B A addmsg /kinetics/stim /kinetics/synapse SLAVE output addmsg /kinetics/CaRegulation/CaTransp-2Ca /kinetics/CaRegulation/CaTraspATPase SUBSTRATE n addmsg /kinetics/CaRegulation/CaTransp /kinetics/CaRegulation/CaTraspATPase PRODUCT n addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/CaTraspATPase PRODUCT n addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/CaTraspATPase PRODUCT n addmsg /kinetics/CaRegulation/CaTraspATPase /kinetics/CaRegulation/Ca-sequester REAC B A addmsg /kinetics/CaRegulation/IP3R*/IP3chan /kinetics/CaRegulation/Ca-sequester REAC A B addmsg /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan /kinetics/CaRegulation/Ca-sequester REAC A B addmsg /kinetics/CaRegulation/CaTraspATPase /kinetics/CaRegulation/Ca-sequester REAC B A addmsg /kinetics/CaRegulation/inactivate_cap_Ca /kinetics/CaRegulation/Ca-sequester REAC A B addmsg /kinetics/CaRegulation/inactivate_cap_Ca /kinetics/CaRegulation/Ca-sequester REAC A B addmsg /kinetics/CaRegulation/Ca-leak-to-cytoplasm /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan NUMCHAN n addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan SUBSTRATE n vol addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan PRODUCT n vol addmsg /kinetics/CaRegulation/CaTraspATPase /kinetics/CaRegulation/CaTransp-2Ca REAC A B addmsg /kinetics/CaRegulation/Ca-bind-to-Transp /kinetics/CaRegulation/CaTransp-2Ca REAC B A addmsg /kinetics/CaRegulation/CaTransp /kinetics/CaRegulation/CaTransp-2Ca CONSERVE n nInit addmsg /kinetics/CaRegulation/Ca-bind-to-Transp /kinetics/CaRegulation/CaTransp REAC A B addmsg /kinetics/CaRegulation/CaTraspATPase /kinetics/CaRegulation/CaTransp REAC B A addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/Ca-bind-to-Transp SUBSTRATE n addmsg /kinetics/CaRegulation/CaTransp /kinetics/CaRegulation/Ca-bind-to-Transp SUBSTRATE n addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/Ca-bind-to-Transp SUBSTRATE n addmsg /kinetics/CaRegulation/CaTransp-2Ca /kinetics/CaRegulation/Ca-bind-to-Transp PRODUCT n addmsg /kinetics/CaRegulation/IP3Rbind /kinetics/CaRegulation/IP3R REAC A B addmsg /kinetics/CaRegulation/IP3R* /kinetics/CaRegulation/IP3Rbind PRODUCT n addmsg /kinetics/CaRegulation/IP3R /kinetics/CaRegulation/IP3Rbind SUBSTRATE n addmsg /kinetics/IP3 /kinetics/CaRegulation/IP3Rbind SUBSTRATE n addmsg /kinetics/IP3 /kinetics/CaRegulation/IP3Rbind SUBSTRATE n addmsg /kinetics/IP3 /kinetics/CaRegulation/IP3Rbind SUBSTRATE n addmsg /kinetics/CaRegulation/IP3Rbind /kinetics/CaRegulation/IP3R* REAC B A addmsg /kinetics/CaRegulation/IP3R* /kinetics/CaRegulation/IP3R*/IP3chan NUMCHAN n addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/IP3R*/IP3chan SUBSTRATE n vol addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/IP3R*/IP3chan PRODUCT n vol addmsg /kinetics/CaRegulation/CaEPump/Ca-pump-out /kinetics/CaRegulation/CaEPump REAC eA B addmsg /kinetics/CaRegulation/CaEPump/Ca-pump-out /kinetics/CaRegulation/CaEPump CONSERVE nComplex nComplexInit addmsg /kinetics/CaRegulation/CaEPump /kinetics/CaRegulation/CaEPump/Ca-pump-out ENZYME n addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/CaEPump/Ca-pump-out SUBSTRATE n addmsg /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan /kinetics/CaRegulation/Ca-ext REAC A B addmsg /kinetics/CaRegulation/CaEPump/Ca-pump-out /kinetics/CaRegulation/Ca-ext MM_PRD pA addmsg /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan /kinetics/CaRegulation/Ca-ext REAC A B addmsg /kinetics/CaRegulation/Ca-leak-from-extracell /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan NUMCHAN n addmsg /kinetics/CaRegulation/Ca-ext /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan SUBSTRATE n vol addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan PRODUCT n vol addmsg /kinetics/CaRegulation/inactivate_cap_Ca /kinetics/CaRegulation/capacitive_Ca_entry* REAC A B addmsg /kinetics/CaRegulation/capacitive_Ca_entry* /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan NUMCHAN n addmsg /kinetics/CaRegulation/Ca-ext /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan SUBSTRATE n vol addmsg /kinetics/Ca_intracell /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan PRODUCT n vol addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/inactivate_cap_Ca SUBSTRATE n addmsg /kinetics/CaRegulation/Ca-sequester /kinetics/CaRegulation/inactivate_cap_Ca SUBSTRATE n addmsg /kinetics/CaRegulation/capacitive_Ca_entry* /kinetics/CaRegulation/inactivate_cap_Ca SUBSTRATE n addmsg /kinetics/CaRegulation/inact_cap_entry /kinetics/CaRegulation/inactivate_cap_Ca PRODUCT n addmsg /kinetics/CaRegulation/inactivate_cap_Ca /kinetics/CaRegulation/inact_cap_entry REAC B A addmsg /kinetics/CaRegulation/Ca-bind-to-Transp /kinetics/Ca_intracell REAC A B addmsg /kinetics/CaRegulation/Ca-bind-to-Transp /kinetics/Ca_intracell REAC A B addmsg /kinetics/CaRegulation/IP3R*/IP3chan /kinetics/Ca_intracell REAC B A addmsg /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan /kinetics/Ca_intracell REAC B A addmsg /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan /kinetics/Ca_intracell REAC B A addmsg /kinetics/CaRegulation/CaEPump/Ca-pump-out /kinetics/Ca_intracell REAC sA B addmsg /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan /kinetics/Ca_intracell REAC B A addmsg /kinetics/Ca_tab /kinetics/Ca_stim SLAVE output addmsg /kinetics/PKC/PKC-act-by-Ca /kinetics/Ca REAC A B addmsg /kinetics/PLA2/PLA2-Ca-act /kinetics/Ca REAC A B addmsg /kinetics/PLA2/PLA2*-Ca-act /kinetics/Ca REAC A B addmsg /kinetics/PLCbeta/Act-PLC-Ca /kinetics/Ca REAC A B addmsg /kinetics/PLCbeta/PLC-Gq-bind-Ca /kinetics/Ca REAC A B addmsg /kinetics/PLC_g/Ca_act_PLC_g /kinetics/Ca REAC A B addmsg /kinetics/PLC_g/Ca_act_PLC_g* /kinetics/Ca REAC A B addmsg /kinetics/CaM/CaM-TR2-bind-Ca /kinetics/Ca REAC A B addmsg /kinetics/CaM/CaM-TR2-bind-Ca /kinetics/Ca REAC A B addmsg /kinetics/CaM/CaM-TR2-Ca2-bind-Ca /kinetics/Ca REAC A B addmsg /kinetics/CaM/CaM-Ca3-bind-Ca /kinetics/Ca REAC A B addmsg /kinetics/PP2B/Ca-bind-CaNAB-Ca2 /kinetics/Ca REAC A B addmsg /kinetics/PP2B/Ca-bind-CaNAB-Ca2 /kinetics/Ca REAC A B addmsg /kinetics/PP2B/Ca-bind-CaNAB /kinetics/Ca REAC A B addmsg /kinetics/PP2B/Ca-bind-CaNAB /kinetics/Ca REAC A B addmsg /kinetics/Ca_stim /kinetics/Ca SUMTOTAL n nInit addmsg /kinetics/Ca_intracell /kinetics/Ca SUMTOTAL n nInit addmsg /kinetics/PLCbeta/PLC-Ca-Gq/PLCb-Ca-Gq /kinetics/IP3 MM_PRD pA addmsg /kinetics/PLCbeta/Degrade-IP3 /kinetics/IP3 REAC A B addmsg /kinetics/PLCbeta/PLC-Ca/PLC-Ca /kinetics/IP3 MM_PRD pA addmsg /kinetics/PLC_g/Ca.PLC_g/PIP2_hydrolysis /kinetics/IP3 MM_PRD pA addmsg /kinetics/PLC_g/Ca.PLC_g*/PIP2_hydrolysis /kinetics/IP3 MM_PRD pA addmsg /kinetics/CaRegulation/IP3Rbind /kinetics/IP3 REAC A B addmsg /kinetics/CaRegulation/IP3Rbind /kinetics/IP3 REAC A B addmsg /kinetics/CaRegulation/IP3Rbind /kinetics/IP3 REAC A B addmsg /kinetics/PLCbeta/PLC-Ca-Gq/PLCb-Ca-Gq /kinetics/PIP2 REAC sA B addmsg /kinetics/PLCbeta/PLC-Ca/PLC-Ca /kinetics/PIP2 REAC sA B addmsg /kinetics/PLC_g/Ca.PLC_g*/PIP2_hydrolysis /kinetics/PIP2 REAC sA B addmsg /kinetics/PLC_g/Ca.PLC_g/PIP2_hydrolysis /kinetics/PIP2 REAC sA B addmsg /kinetics/Glu /graphs/conc1/Glu.Co PLOT Co *Glu.Co *green addmsg /kinetics/Ca /graphs/conc1/Ca.Co PLOT Co *Ca.Co *red addmsg /kinetics/PP1-active /graphs/conc1/PP1-active.Co PLOT Co *PP1-active.Co *cyan addmsg /kinetics/PKA-active /graphs/conc1/PKA-active.Co PLOT Co *PKA-active.Co *yellow addmsg /kinetics/cAMP /graphs/conc1/cAMP.Co PLOT Co *cAMP.Co *green addmsg /kinetics/AA /graphs/conc1/AA.Co PLOT Co *AA.Co *darkgreen addmsg /kinetics/DAG /graphs/conc1/DAG.Co PLOT Co *DAG.Co *green addmsg /kinetics/PLCbeta/PLC-Ca /graphs/conc1/PLC-Ca.Co PLOT Co *PLC-Ca.Co *cyan addmsg /kinetics/PLCbeta/PLC-Ca-Gq /graphs/conc1/PLC-Ca-Gq.Co PLOT Co *PLC-Ca-Gq.Co *cyan addmsg /kinetics/CaRegulation/Ca-sequester /graphs/conc1/Ca-sequester.Co PLOT Co *Ca-sequester.Co *red addmsg /kinetics/IP3 /graphs/conc1/IP3.Co PLOT Co *IP3.Co *pink addmsg /kinetics/CaMKII/tot_CaM_CaMKII /graphs/conc2/tot_CaM_CaMKII.Co PLOT Co *tot_CaM_CaMKII.Co *green addmsg /kinetics/CaMKII/tot_autonomous_CaMKII /graphs/conc2/tot_autonomous_CaMKII.Co PLOT Co *tot_autonomous_CaMKII.Co *green addmsg /kinetics/CaM-Ca4 /graphs/conc2/CaM-Ca4.Co PLOT Co *CaM-Ca4.Co *blue addmsg /kinetics/PKC-active /graphs/conc2/PKC-active.Co PLOT Co *PKC-active.Co *red addmsg /kinetics/MAPK* /graphs/conc2/MAPK*.Co PLOT Co *MAPK*.Co *orange addmsg /kinetics/BetaGamma /graphs/conc2/BetaGamma.Co PLOT Co *BetaGamma.Co *yellow addmsg /kinetics/Ras/GTP-Ras /graphs/conc2/GTP-Ras.Co PLOT Co *GTP-Ras.Co *orange addmsg /kinetics/Shc*.Sos.Grb2 /graphs/conc2/Shc*.Sos.Grb2.Co PLOT Co *Shc*.Sos.Grb2.Co *brown addmsg /kinetics/CaM(Ca)n-CaNAB /graphs/conc2/CaM(Ca)n-CaNAB.Co PLOT Co *CaM(Ca)n-CaNAB.Co *darkblue addmsg /kinetics/PP1/PP1-I1* /graphs/conc2/PP1-I1*.Co PLOT Co *PP1-I1*.Co *brown addmsg /kinetics/PP1/PP1-I1 /graphs/conc2/PP1-I1.Co PLOT Co *PP1-I1.Co *brown addmsg /kinetics/Ca_intracell /graphs/conc2/Ca.Co PLOT Co *Ca.Co *red addmsg /kinetics/CaRegulation/inact_cap_entry /moregraphs/conc3/inact_cap_entry.Co PLOT Co *inact_cap_entry.Co *pink enddump // End of dump setfield /kinetics/Ca_tab table->dx 0.1 setfield /kinetics/Ca_tab table->invdx 10 call /kinetics/PKC/notes LOAD \ "Protein Kinase C. This module represents a weighted average of" \ "the alpha, beta and gamma isoforms. It takes inputs from" \ "Ca, DAG (Diacyl Glycerol) and AA (arachidonic acid)." \ "Regulation parameters are largely from Schaechter and Benowitz" \ "1993 J Neurosci 13(10):4361 who use synaptosomes from" \ "mammalian brain and in one paper look at all three inputs." \ "Shinomura et al 1991 PNAS 88:5149-5153 is also a useful source" \ "of data and helps to tighten the DAG inputs. " \ "General reviews include Azzi et al 1992 Eur J Bioch 208:541" \ "and Nishizuka 1988, Nature 334:661" \ "Concentration info from Kikkawa et al 1982 JBC 257(22):13341" \ "The process of parameterization is described in detail" \ "in several places. See Supplementary notes to " \ "Bhalla and Iyengar 1999 Science 284:92-96, available at the site" \ "http://www.ncbs.res.in/~bhalla/ltploop/pkc_example.html" \ "The parameterization is also described in a book chapter:" \ "Bhalla, 2000: Simulations of Biochemical Signaling in" \ "Computational Neuroscience: Realistic Modeling for Experimentalists." \ "Ed. E. De Schutter. CRC Press." \ "" call /kinetics/PKC/PKC-Ca/notes LOAD \ "This intermediate is strongly indicated by the synergistic" \ "activation of PKC by combinations of DAG and Ca, as well" \ "as AA and Ca. PKC by definition also has a direct Ca-activation," \ "to which this also contributes." call /kinetics/PKC/PKC-act-by-Ca/notes LOAD \ "This Kd is a straightforward result from the Schaechter and Benowitz" \ "1993 J Neurosci 13(10):4361 curves. The time-course is based on the" \ "known rapid activation of PKC and also the fact that Ca association" \ "with proteins is typically quite fast. My guess is that this tau of" \ "2 sec is quite conservative and the actualy rate may be much faster." \ "The parameter is quite insensitive for most stimuli." \ "" \ "" call /kinetics/PKC/PKC-act-by-DAG/notes LOAD \ "Ca.PKC interaction with DAG is modeled by this reaction." \ "Kf based on Shinomura et al PNAS 88 5149-5153 1991 and" \ "Schaechter and Benowitz 1993 J Neurosci 13(10):4361 and uses" \ "the constraining procedure referred to in the general" \ "notes for PKC." call /kinetics/PKC/PKC-Ca-to-memb/notes LOAD \ "Membrane translocation is a standard step in PKC activation." \ "It also turns out to be necessary to replicate the curves" \ "from Schaechter and Benowitz 1993 J Neurosci 13(10):4361" \ "and Shonomura et al 1991 PNAS 88:5149-5153. These rates" \ "are constrained by matching the curves in the above papers and" \ "by fixing a rather fast (sub-second) tau for PKC activation." call /kinetics/PKC/PKC-DAG-to-memb/notes LOAD \ "membrane translocation step for Ca.DAG.PKC complex." \ "Rates constrained from Shinomura et al 1991 PNAS 88:5149-5153" \ " and Schaechter and Benowitz 1993 J Neurosci 13(10):4361" \ "as derived in the references cited in PKC general notes." call /kinetics/PKC/PKC-act-by-Ca-AA/notes LOAD \ "Ca-dependent AA activation of PKC." \ "Note that this step combines the AA activation and also the " \ "membrane translocation." \ "From Schaechter and Benowitz 1993 J Neurosci 13(10):4361" call /kinetics/PKC/PKC-act-by-DAG-AA/notes LOAD \ "Membrane translocation step for PKC-DAG-AA complex." \ "Rates from matching concentration-effect data in our" \ "two main references:" \ "Schaechter and Benowitz 1993 J Neurosci 13(10):4361 and" \ "Shinomura et al 1988 PNAS 88: 5149-5153" call /kinetics/PKC/PKC-DAG-AA*/notes LOAD \ "Membrane translocated form of PKC-DAG-AA complex." call /kinetics/PKC/PKC-Ca-AA*/notes LOAD \ "Membrane bound and active complex of PKC, Ca and AA." call /kinetics/PKC/PKC-Ca-memb*/notes LOAD \ "This is the direct Ca-stimulated activity of PKC." call /kinetics/PKC/PKC-DAG-memb*/notes LOAD \ "Active, membrane attached form of Ca.DAG.PKC complex." call /kinetics/PKC/PKC-basal*/notes LOAD \ "This is the basal PKC activity which contributes about" \ "2% to the maximum." call /kinetics/PKC/PKC-basal-act/notes LOAD \ "Basal activity of PKC is quite high, about 10% of max." \ "See Schaechter and Benowitz 1993 J Neurosci 13(10):4361 and" \ "Shinomura et al 1991 PNAS 88:5149-5153. This is partly due to" \ "basal levels of DAG, AA and Ca, but even when these are taken" \ "into account (see the derivations as per the PKC general notes)" \ "there is a small basal activity still to be accounted for. This" \ "reaction handles it by giving a 2% activity at baseline." call /kinetics/PKC/PKC-AA*/notes LOAD \ "This is the membrane-bound and active form of the PKC-AA complex." \ "" call /kinetics/PKC/PKC-act-by-AA/notes LOAD \ "AA stimulates PKC activity even at rather low Ca." \ "Schaechter and Benowitz 1993 J Neurosci 13(10):4361" \ "Note that this one reaction combines the initial interaction" \ "and also membrane translocation." call /kinetics/PKC/PKC-Ca-DAG/notes LOAD \ "This is the active PKC form involving Ca and DAG." \ "It has to translocate to the membrane." call /kinetics/PKC/PKC-n-DAG/notes LOAD \ "Binding of PKC to DAG, non-Ca dependent." \ "" \ "Kf based on Shinomura et al PNAS 88 5149-5153 1991" \ "Tau estimated as fast and here it is about the same time-course" \ "as the formation of DAG so it will not be rate-limiting." call /kinetics/PKC/PKC-DAG/notes LOAD \ "This is a DAG-bound intermediate used in synergistic activation" \ "of PKC by DAG and AA." call /kinetics/PKC/PKC-n-DAG-AA/notes LOAD \ "This is one of the more interesting steps. Mechanistically" \ "it does not seem necessary at first glance. Turns out that" \ "one needs this step to quantitatively match the curves" \ "in Schaechter and Benowitz 1993 J Neurosci 13(10):4361" \ "and Shinomura et al 1991 PNAS 88:5149-5153. There is" \ "a synergy between DAG and AA activation even at low" \ "Ca levels, which is most simply represented by this reaction." \ "Tau is assumed to be fast." \ "Kd comes from matching the experimental curves." call /kinetics/PKC/PKC-DAG-AA/notes LOAD \ "Complex of PKC, DAG and AA giving rise to synergistic" \ "activation of PKC by DAG and AA at resting Ca." \ "" call /kinetics/PKC/PKC-cytosolic/notes LOAD \ "Marquez et al J. Immun 149,2560(92) est 1e6/cell for chromaffin cells" \ "" \ "Kikkawa et al 1982 JBC 257(22):13341 have PKC levels in brain at " \ "about 1 uM." \ "" \ "The cytosolic form is the inactive PKC. This is really a composite" \ "of three isoforms: alpha, beta and gamma which have slightly" \ "different properties and respond to different combinations of" \ "Ca, AA and DAG." call /kinetics/DAG/notes LOAD \ "Baseline in model is 11.661 uM." \ "DAG is pretty nasty to estimate. In this model we just hold" \ "it fixed at this baseline level. Data sources are many and" \ "varied and sometimes difficult to reconcile. " \ "Welsh and Cabot 1987 JCB 35:231-245: DAG degradation" \ "Bocckino et al JBC 260(26):14201-14207: " \ " hepatocytes stim with vasopressin: 190 uM." \ "Bocckino et al 1987 JBC 262(31):15309-15315:" \ " DAG rises from 70 to 200 ng/mg wet weight, approx 150 to 450 uM." \ "Prescott and Majerus 1983 JBC 258:764-769: Platelets: 6 uM." \ " Also see Rittenhouse-Simmons 1979 J Clin Invest 63." \ "Sano et al JBC 258(3):2010-2013: Report a nearly 10 fold rise." \ "Habenicht et al 1981 JBC 256(23)12329-12335: " \ " 3T3 cells with PDGF stim: 27 uM" \ "Cornell and Vance 1987 BBA 919:23-36: 10x rise from 10 to 100 uM." \ "" \ "Summary: I see much lower rises in my PLC models," \ "but the baseline could be anywhere from" \ "5 to 100 uM. I have chosen about 11 uM based on the stimulus -response" \ "characteristics from the Schaechter and Benowitz paper and the" \ "Shinomura et al papers." \ "" \ "" \ "" call /kinetics/AA/notes LOAD \ "Arachidonic Acid. This messenger diffuses through membranes" \ "as well as cytosolically, has been suggested as a possible" \ "retrograde messenger at synapses. " call /kinetics/PKC-active/notes LOAD \ "This is the total active PKC. It is the sum of the respective" \ "activities of " \ "PKC-basal*" \ "PKC-Ca-memb*" \ "PKC-DAG-memb*" \ "PKC-Ca-AA*" \ "PKC-DAG-AA*" \ "PKC-AA*" \ "I treat PKC here in a two-state manner: Either it is in an active" \ "state (any one of the above list) or it is inactive. No matter what " \ "combination of stimuli activate the PKC, I treat it as having the same" \ "activity. The scaling comes in through the relative amounts of PKC" \ "which bind to the respecive stimuli." \ "The justification for this is the mode of action of PKC, which like" \ "most Ser/Thr kinases has a kinase domain normally bound to and blocked" \ "by a regulatory domain. I assume that all the activators simply free" \ "up the kinase domain." \ "A more general model would incorporate a different enzyme activity for" \ "each combination of activating inputs, as well as for each substrate." \ "The current model seems to be a decent and much simpler approximation" \ "for the available data." \ "One caveat of this way of representing PKC is that the summation" \ "procedure assumes that PKC does not saturate with its substrates. " \ "If this assumption fails, then the contributing PKC complexes would" \ "experience changes in availability which would affect their " \ "balance. Given the relatively low percentage of PKC usually activated," \ "and its high throughput as an enzyme, this is a safe assumption under" \ "physiological conditions." \ "" call /kinetics/PKC-active/PKC-act-raf/notes LOAD \ "Rate consts from Chen et al Biochem 32, 1032 (1993)" \ "k3 = 4" \ "Km for this substrate is trickier. Specific substrates are in the" \ "uM range, so we use a higher Km here. This may be too conservative" \ "in which case PKC would have a still higher effect on raf." \ "The presence of this phosphorylation and activation step is from" \ "Kolch et al 1993 Nature 364:249" \ "" \ "" call /kinetics/PKC-active/PKC-inact-GAP/notes LOAD \ "Rate consts are PKC generic rates." \ "This reaction inactivates GAP. The reaction is from the " \ "Boguski and McCormick 1993 review in Nature 366:643-654" \ "The phosphorylation Vmax is 6x higher to account for" \ "balance of GDP-Ras:GDP-Ras." call /kinetics/PKC-active/PKC-act-GEF/notes LOAD \ "Rate constants are generic PKC rates." \ "See Chen et al 1993 Biochem 32:1032" \ "This reaction activates GEF. Gives >= 2X stim of ras, and" \ "a 2X stim of MAPK over amount from direct phosph of" \ "c-raf. Note that it is a push-pull reaction, and also get" \ "effect through phosph and inact of GAPs." \ "" call /kinetics/PKC-active/PKC-phosph-neurogranin/notes LOAD \ "Rates from Huang et al ABB 305:2 570-580 1993" call /kinetics/PKC-active/PKC-phosph-ng-CaM/notes LOAD \ "Rates are 60% those of PKC-phosph-neurogranin. See" \ "Huang et al ABB 305:2 570-580 1993" call /kinetics/PKC-active/phosph-AC2/notes LOAD \ "Phorbol esters have little effect on AC1 or on the Gs-stimulation of" \ "AC2. So in this model we are only dealing with the increase in" \ "basal activation of AC2 induced by PKC" \ "k1 = 1.66e-6" \ "k2 = 16" \ "k3 =4" \ "" call /kinetics/PLA2/notes LOAD \ "Main source of data: Leslie and Channon BBA 1045 (1990) pp 261-270." \ "Fig 6 is Ca curve. Fig 4a is PIP2 curve. Fig 4b is DAG curve. Also see" \ "Wijkander and Sundler JBC 202 (1991) pp873-880;" \ "Diez and Mong JBC 265(24) p14654;" \ "Leslie JBC 266(17) (1991) pp11366-11371" \ "Many inputs activate PLA2. In this model I simply take" \ "each combination of stimuli as binding to PLA2 to give a" \ "unique enzymatic activity. The Km and Vmax of these" \ "active complexes is scaled according to the" \ "relative activation reported in the papers above." call /kinetics/PLA2/PLA2-cytosolic/notes LOAD \ "cPLA2 IV form has mol wt of 85 Kd." \ "Glaser et al 1993 TIPS 14:92-98." \ "" \ "Calculated cytosolic concentration is ~300 nM from Wijkander and Sundler" \ "1991 Eur J Biochem 202:873" \ "Leslie and Channon 1990 BBA 1045:261 use about 400 nM. " \ "Decent match. Use 400 nM." \ "" call /kinetics/PLA2/PLA2-Ca-act/notes LOAD \ "Direct activation of PLA2 by Ca." \ "From Leslie and Channon BBA 1045 (1990) 261-270 fig6 pp267." call /kinetics/PLA2/PLA2-Ca*/notes LOAD \ "The generic Ca-activated form ofPLA2." \ "Leslie and Channon 1990 BBA 1045:261." call /kinetics/PLA2/PLA2-Ca*/kenz/notes LOAD \ "Based on Leslie and Channon 1990 BBA 1045:261, in relation to the" \ "other PLA2 inputs (not including MAPK). Ca alone is rather a " \ "weak input." call /kinetics/PLA2/PIP2-PLA2-act/notes LOAD \ "Activation of PLA2 by PIP2. From" \ "Leslie and Channon 1990 BBA 1045:261 the stimulation of PLA2" \ "activity by high PIP2 is 7x." \ "In this model we don't really expect any PIP2 stimulus." \ "" call /kinetics/PLA2/PIP2-PLA2*/notes LOAD \ "PLA2 activated by PIP2 alone." call /kinetics/PLA2/PIP2-PLA2*/kenz/notes LOAD \ "Based on Leslie and Channon 1990 BBA 1045:261." call /kinetics/PLA2/PIP2-Ca-PLA2-act/notes LOAD \ "Synergistic activation of PLA2 by Ca and PIP2. Again from " \ "Leslie and Channon 1990 BBA 1045:261" call /kinetics/PLA2/PIP2-Ca-PLA2*/notes LOAD \ "Activated form of PLA2 with PIP2 and Ca bound." call /kinetics/PLA2/PIP2-Ca-PLA2*/kenz/notes LOAD \ "Based on AA generation by different stimuli according to" \ "Leslie and Channon 1990 BBA 1045:261" call /kinetics/PLA2/DAG-Ca-PLA2-act/notes LOAD \ "Synergistic activation of PLA2 by Ca and DAG. " \ "Based on Leslie and Channon 1990 BBA 1045:261" \ "The Kd is rather large and may reflect the complications" \ "in measuring DAG. For this model it is not critical " \ "since DAG is held fixed." call /kinetics/PLA2/DAG-Ca-PLA2*/notes LOAD \ "Active form of PLA2 with DAG and Ca bound. DAG and Ca act in" \ "combination hence the need for this form in the model." \ "Leslie and Channon (199) BBA 1045:261-270" call /kinetics/PLA2/DAG-Ca-PLA2*/kenz/notes LOAD \ "Based on Leslie and Channon 1990 BBA 1045:261." call /kinetics/PLA2/APC/notes LOAD \ "arachodonylphosphatidylcholine is the favoured substrate" \ "from Wijkander and Sundler, JBC 202 pp 873-880, 1991." \ "Their assay used 30 uM substrate, which is what the kinetics in" \ "this model are based on. For the later model we should locate" \ "a more realistic value for APC. For now it is treated as" \ "a buffered metabolite." call /kinetics/PLA2/Degrade-AA/notes LOAD \ "Degradation pathway for AA." \ "APC is a convenient buffered pool to dump it back into, though the" \ "actual metabolism is probably far more complex." \ "For the purposes of the full model we use a rate of degradation of" \ "0.4/sec to give a dynamic range of AA comparable to what is seen" \ "experimentally." \ "Wijkander and Sundler 1991 Eur J Biochem 202:873" \ "Leslie and Channon 1990 BBA 1045:261" call /kinetics/PLA2/PLA2*-Ca/notes LOAD \ "Phosphorylated and active form of PLA2. Several kinases act on it:" \ "PKA: Wightman et al JBC 257 pp6650 1982" \ "PKC: Many refs, eg Gronich et al JBC 263 pp 16645, 1988 but see Lin etal" \ "MAPK: Lin et al, Cell 72 pp 269, 1993. Show 3x with MAPK but not PKC alone" \ "The Nemenoff assays are conducted in rather high Ca so I have" \ "assumed a Ca binding step." call /kinetics/PLA2/PLA2*-Ca/kenz/notes LOAD \ "This form should be 3 to 6 times as fast as the Ca-only form, from" \ "Lin et al 1993 Cell 269-278" \ "Nemenoff et al 1993 JBC 268:1960" \ "Several forms contribute to the Ca-stimulated form, so this rate has" \ "to be a factor larger than their total contribution. " \ "I assign Vmax as the scale factor here because there is lots of APC" \ "substrate, so all the PLA2 complex enzymes are limited primarily by Vmax." call /kinetics/PLA2/PLA2*/notes LOAD \ "Phosphorylated PLA2. The site differs from the site" \ "phosphorylated by PKC. See" \ "Nemenoff et al 1993 JBC 268(3):1960-1964" call /kinetics/PLA2/PLA2*-Ca-act/notes LOAD \ "Nemenoff et al 1993 JBC 268:1960 report a 2X to 4x activation of PLA2" \ "by MAPK, which seems dependent on Ca as well. This reaction " \ "represents this activation. Rates are scaled to give appropriate" \ "fold activation." call /kinetics/PLA2/dephosphorylate-PLA2*/notes LOAD \ "Dephosphorylation reaction to balance MAPK phosphorylation of PLA2." \ "This is probably mediated by PP2A. " \ "Rates determined to keep the balance of phosphorylated and" \ "non-phosphorylated PLA2 reasonable. The constraining factor" \ "is the fold activation of PLA2 by MAPK." call /kinetics/MAPK*/notes LOAD \ "This molecule is phosphorylated on both the tyr and thr residues and" \ "is active: Seger et al 1992 JBC 267(20):14373" \ "The rate consts are from two sources: Combine Sanghera et al" \ "JBC 265(1) :52-57 with Nemenoff et al JBC 93 pp 1960 to get" \ " k3 = 10, k2 = 40, k1 = 3.25e-6" call /kinetics/MAPK*/MAPK*/notes LOAD \ "Km = 25uM @ 50 uM ATP and 1mg/ml MBP (huge XS of substrate)" \ "Vmax = 4124 pmol/min/ml at a conc of 125 pmol/ml of enz." \ "Numbers are from Sanghera et al JBC 265 pp 52 , 1990. " \ "From Nemenoff et al 1993 JBC 268(3):1960-1964 - using Sanghera's 1e-4 ratio" \ "of MAPK to protein, we get k3 = 7/sec from 1000 pmol/min/mg total " \ "protein in fig 5" \ "I take the Vmax to be higher for PLA2 given the fold activation of PLA2" \ "by MAPK. This is actually a balance term between MAPK and the dephosphorylation" \ "step." \ "" call /kinetics/MAPK*/MAPK*-feedback/notes LOAD \ "Ueki et al JBC 269(22):15756-15761 show the presence of" \ "this step, but not the rate consts, which are derived from" \ "Sanghera et al JBC 265(1):52-57, 1990, see the deriv in the" \ "MAPK* notes." call /kinetics/MAPK*/phosph_Sos/notes LOAD \ "See Porfiri and McCormick JBC 271:10 pp5871 1996 for the" \ "existence of this step. We'll take the rates from the ones" \ "used for the phosph of Raf by MAPK." \ "Sep 17 1997: The transient activation curve matches better" \ "with k1 up by 10 x." call /kinetics/temp-PIP2/notes LOAD \ "This is a steady PIP2 input to PLA2. The sensitivity" \ "of PLA2 to PIP2 discussed below" \ "does not match with the reported free levels which are" \ "used by the phosphlipase Cs. My understanding is that" \ "there may be different pools of PIP2 available for stimulating" \ "PLA2 as opposed to being substrates for PLCs. For that reason" \ "I have given this PIP2 pool a separate identity. As it is" \ "a steady input this is not a problem in this model." \ "" \ "Majerus et al Cell 37:701-703 report a brain concentration of" \ "0.1 - 0.2 mole %" \ "Majerus et al Science 234:1519-1526 report a huge range of " \ "concentrations: from 1 to 10% of PI content, which is in turn" \ "2-8% of cell lipid. This gives 2e-4 to 8e-3 of cell lipid." \ "In concentrations in total volume of cell (a somewhat strange" \ "number given the compartmental considerations) this comes to" \ "anywhere from 4 uM to 200 uM." \ "" \ "PLA2 is stim 7x by PIP2 (Leslie and Channon BBA 1045:261(1990) " \ "Leslie and Channon say PIP2 is present at 0.1 - 0.2mol% range in membs," \ "so I'll use a value at the lower end of the scale for basal PIP2." call /kinetics/Glu/notes LOAD \ "Varying the amount of (steady state) glu between .01 uM and up, the" \ "final amount of G*GTP complex does not change much. This means that" \ "the system should be reasonably robust wr to the amount of glu in the" \ "synaptic cleft. It would be nice to know how fast it is removed." \ "Schoepp et al 1990 TIPS 11:508-515 give a range of Glu EC50 from rat" \ "brain in the range 120 to 1000 uM." \ "Nicoletti 1986 PNAS 83:1931-1935 and" \ "Schoepp and Johnson 1989 J Neurochem 53:1865-1870 " \ "give an off time of at least 30 sec." call /kinetics/PLCbeta/notes LOAD \ "Phospholipase C beta. This model only incorporates Ca and Gq regulation," \ "though there is evidence to show that many things, from kinase to " \ "phosphatidic acid all regulate its activity. There are various subtypes" \ "of PLCbeta: 1, 2, 3 and probably more. This version is not specific" \ "enough to be subtyped." \ "Primary refs:" \ "Homma et al 1988 JBC 263(14):6592" \ "Ryu et al 1987 JBC 262(26):12511" \ "Sternweis et al 1992 Phil Trans Roy Soc Lond" \ "and especially" \ "Smrcka et al 1991 Science 251:804-807" call /kinetics/PLCbeta/Act-PLC-Ca/notes LOAD \ "Affinity for Ca = 1uM without AlF, 0.1 with:" \ " from Smrcka et al science 251 pp 804-807 1991" \ "Assigned affinity to a Kd of 0.333 to maintain" \ "detailed balance. " call /kinetics/PLCbeta/PLC/notes LOAD \ "Total PLC = 0.8 uM see Ryu et al JBC 262 (26) pp 12511 1987" call /kinetics/PLCbeta/Degrade-IP3/notes LOAD \ "The enzyme is IP3 5-phosphomonesterase. about 45K. Actual products" \ "are Ins(1,4)P2, and cIns(1:2,4,5)P3. review in Majerus et al Science 234" \ "1519-1526, 1986." \ "Meyer and Stryer 1988 PNAS 85:5051-5055 est decay of IP3 at" \ " 1-3/sec" call /kinetics/PLCbeta/Inositol/notes LOAD \ "Very simplified degradation product of IP3. There is a very interesting" \ "and complex phosphorylation/dephosphorylation cascade on the inositol" \ "phosphates, but that is outside the scope of this model." call /kinetics/PLCbeta/Degrade-DAG/notes LOAD \ "" \ "Rates based on basal and activation levels of DAG." call /kinetics/PLCbeta/PC/notes LOAD \ "Phosphatidylcholine is the main (around 55%) metabolic product of DAG," \ "follwed by PE (around 25%). Ref is Welsh and Cabot, JCB35:231-245(1987)" call /kinetics/PLCbeta/PLC-Ca/notes LOAD \ "Ca-bound form of PLCbeta. This form is moderately active. Reviewed in" \ "Sternweis et al 1992 Phil Trans Roy Soc. Lond." call /kinetics/PLCbeta/PLC-Ca/PLC-Ca/notes LOAD \ "From Sternweis et al Phil Trans R Soc Lond 1992, also matched by Homma et al." \ "Km of 20 is higher than for the Gq bound form, but Vmax is about 1/3 of the" \ "Gq form." call /kinetics/PLCbeta/Act-PLC-by-Gq/notes LOAD \ "Affinity for Gq is > 20 nM (Smrcka et al Science251 804-807 1991)" \ "so [Gq].kf = kb so 40nM * 6e5 = kb/kf = 24e3 so kf = 4.2e-5, kb =1" \ "" call /kinetics/PLCbeta/Inact-PLC-Gq/notes LOAD \ "This process is assumed to be directly caused by the inactivation of" \ "the G*GTP to G*GDP. Hence, " \ "kf = .013 /sec = 0.8/min, same as the rate for Inact-G." \ "kb = 0 since this is irreversible." \ "We may be" \ "interested in studying the role of PLC as a GAP. If so, the kf would be faster here" \ "than in Inact-G" call /kinetics/PLCbeta/PLC-Ca-Gq/notes LOAD \ "This should really be labelled Ca.GTP.Gq_alpha.PLC" \ "This is the activated form of the enzyme." \ "" call /kinetics/PLCbeta/PLC-Ca-Gq/PLCb-Ca-Gq/notes LOAD \ "From Sternweis et al, Phil Trans R Soc Lond 1992, and the values from" \ "other refs eg Homma et al JBC 263(14) pp6592 1988 match." \ "In this model I have rather low values for PIP2. The Km values" \ "are low to match. Sternweis mentions a 5 uM Km which is what I use" \ "here, but the Homma paper suggests about 20x higher Km, which" \ "would also fit with 20x higher PIP2. So that parameter, though it is" \ "off, cancels out and the overall rate would be the same." \ "Vmax is about 23 umol/min/mg at high Ca from Sternweis or about 60/sec." \ "This model value is a little lower than that." call /kinetics/PLCbeta/PLC-Gq/notes LOAD \ "Gq-bound form of PLC beta. " call /kinetics/PLCbeta/PLC-bind-Gq/notes LOAD \ "this binding does not produce active PLC. This step was needed to" \ "implement the described (Smrcka et al) increase in affinity for Ca" \ "by PLC once Gq was bound." \ "The kinetics are the same as the binding step for Ca-PLC to Gq." \ "Kd is constrained by detailed balance." \ "" call /kinetics/PLCbeta/PLC-Gq-bind-Ca/notes LOAD \ "this step has a high affinity of 0.1 uM for Ca, from " \ "Smrcka et al 1991 Science 251:804-807" \ "so kf /kb = 1/6e4 = 1.666e-5:1. See the Act-PLC-by-Gq reaction." \ "" \ "Raised kf to 5e-5 based on match to conc-eff" \ "curves from Smrcka et al." call /kinetics/BetaGamma/notes LOAD \ "The betagamma subunits of Gq. This is an approximation to the possible" \ "combinations of betagamma subunits. Here they are all treated as a " \ "single pool. " call /kinetics/G*GTP/notes LOAD \ "Activated G protein. Berstein et al indicate that about 20-40% of the total" \ "Gq alpha should bind GTP at steady stimulus." call /kinetics/G*GDP/notes LOAD \ "This should correctly be called GDP.G_alpha. The name is preserved for" \ "backward compatibility reasons." call /kinetics/Gq/notes LOAD \ "The model for the Gq pathway plus its activators, here represented" \ "by the metabotropic glutamate receptor. " \ "We assume GTP is present in fixed amounts, so we leave it out" \ "of the explicit equations in this model. Normally we would expect it" \ "to associate along with the G-Receptor-ligand complex." \ "Most info is from Berstein et al JBC 267:12 8081-8088 1992" \ "Structure of receptor activation of Gq from " \ "Fay et al Biochem 30 5066-5075 1991" \ "This mGluR/Gq model lacks a mechanism for receptor desensitization. " call /kinetics/Gq/RecLigandBinding/notes LOAD \ "" \ "From Martin et al FEBS Lett 316:2 191-196 1993 we have Kd = 600 nM" \ "Assuming kb = 10/sec, we get kf = 10/(0.6 uM * 6e5) = 2.8e-5 1/sec/#" \ "The off time for Glu seems pretty slow:" \ "Nicoletti et al 1986 PNAS 83:1931-1935 and" \ "Schoepp and Johnson 1989 J Neurochem 53 1865-1870" \ "indicate it is at least 30 sec. Here we are a little faster because" \ "this is only a small part of the off rate, the rest coming from the" \ "Rec-Gq complex." call /kinetics/Gq/G-GDP/notes LOAD \ "This is the G-alpha-beta-gamma trimer in association with GDP." \ "" \ "From Pang and Sternweis JBC 265:30 18707-12 1990 we get concentration" \ "estimate of 1.6 uM to 0.8 uM. I use 1 uM which is well within this" \ "range." \ "" call /kinetics/Gq/Basal-Act-G/notes LOAD \ "This is the basal exchange of GTP for GDP. So slow as to be" \ "nearly negligible." call /kinetics/Gq/Trimerize-G/notes LOAD \ "kf == kg3 = 1e-5 /cell/sec. As usual, there is no back-reaction" \ "kb = 0" call /kinetics/Gq/Inact-G/notes LOAD \ "From Berstein et al JBC 267:12 8081-8088 1992, kcat for GTPase activity" \ "of Gq is only 0.8/min." call /kinetics/Gq/mGluR/notes LOAD \ "From Mahama and Linderman, Total # of receptors/cell = 1900" \ "However, the density is likely to be very" \ "high at the synapse." \ "Fay et al Biochem 30 5066-5075 1991 have a value of 60K receptors per" \ "cell for neutrophils which comes to 0.1 uM." \ "Here we have a situation where trying to represent the synapse by" \ "a 10 micron cube gives awkward results. I will scale up to 0.3 uM since" \ "synaptic receptor density is likely to be higher, with the caveat that I" \ "should really be using a more geometrically realistic model." call /kinetics/Gq/Rec-Glu/notes LOAD \ "Glu-Receptor complex." call /kinetics/Gq/Rec-Gq/notes LOAD \ "Turns out that a large fraction of the the receptor binds to the G-protein" \ "even in the absence of ligand. This pool represents this step." \ "Fraction of Rec-Gq is 44% of receptor, from " \ "Fay et al 1991 Biochem 30:5066-5075" \ "Since this is not the same receptor, this value is a bit doubtful. Still," \ "we adjust the rate consts in Rec-bind-Gq to match." call /kinetics/Gq/Rec-Glu-bind-Gq/notes LOAD \ "This is the k1-k2 equivalent for enzyme complex formation in the" \ "binding of Rec-Glu to Gq." \ "See Fay et al Biochem 30 5066-5075 1991." \ "Closer reading of Fay et al suggests that " \ "kb <= 0.0001, so kf = 1e-8 by detailed balance. This" \ "reaction appears to be neglible." call /kinetics/Gq/Glu-bind-Rec-Gq/notes LOAD \ "From Fay et al" \ "kb3 = kb = 1.06e-3 which is rather slow." \ "k+1 = kf = 2.8e7 /M/sec= 4.67e-5/sec use 5e-5." \ "However, the Kd from Martin et al may be more appropriate, as this" \ "is Glu not the system from Fay." \ "kf = 2.8e-5, kb = 10" \ "Let us compromise. since we have the Fay model, keep kf = k+1 = 2.8e-5." \ "But kb (k-3) is .01 * k-1 from Fay. Scaling by .01, kb = .01 * 10 = 0.1" call /kinetics/Gq/Rec-Glu-Gq/notes LOAD \ "This is the ternary complex of receptor, ligand and G protein." \ "" call /kinetics/Gq/Activate-Gq/notes LOAD \ "This reaction is the critical one for activation of Gq. It probably" \ "encapsulates multiple steps. In this approximation the receptor-ligand-" \ "Gprotein complex splits up into GTP.Galpha, rec.ligand complex, and " \ "Gbetagamma. There is a hidden step of exchange of GDP for GTP. The" \ "reaction does not take these into account since it is assumed that" \ "both GTP and GDP levels are tightly regulated by metabolic control." \ "" \ "This is the kcat==k3 stage of the Rec-Glu ezymatic activation of Gq." \ "From Berstein et al actiation is at .35 - 0.7/min" \ "From Fay et al Biochem 30 5066-5075 1991 kf = .01/sec" \ "From Nakamura et al J physiol Lond 474:1 35-41 1994 see time courses." \ "Also (Berstein) 15-40% of gprot is in GTP-bound form on stim." call /kinetics/Gq/Rec-bind-Gq/notes LOAD \ "From Berstein et al 1992 JBC 267(12):8081-8088 we know that 15-40%" \ "of Gq binds, GTP_gamma_S. Also about 20-30% of Gq is bound to GTP." \ "To get to these values the receptor-Gq amount should be similar. These" \ "rates are designed to give that steady state with a fast tau of 1 sec." \ "" call /kinetics/Gq/mGluRAntag/notes LOAD \ "I implement this as acting only on the Rec-Gq complex, based on" \ "a more complete model PLC_Gq48.g" \ "which showed that the binding to the receptor" \ "alone contributed only a small amount." call /kinetics/Gq/Antag-bind-Rec-Gq/notes LOAD \ "The rate consts give a total binding affinity of under 0.2 nM, good" \ "for a strong antagonist." call /kinetics/Gq/Blocked-rec-Gq/notes LOAD \ "This represents the blocked state of the receptor when bound" \ "to a competitive antagonist. Note that this is in the Gq bound form." \ "Simulations had shown that with the available rates, the blocking" \ "was minimal if only the unbound receptor could bind the antagonist." call /kinetics/MAPK/notes LOAD \ "The Mitogen Activated Protein Kinase (MAPK) cascade model " \ "here includes both the MAPK cascade and" \ "its regulation by MKP-1. MKP-1 is induced upon MAPK" \ "activation, whereas MKP-2 is treated as a steady level of" \ "protein. For the purposes of this version of the model," \ "MKP-1 is kept at a fixed starting value." \ "The phosphatase Protein phosphatase 2 A (PP2A) " \ "is also included in this model to balance the activity of" \ "the kinases." call /kinetics/MAPK/craf-1/notes LOAD \ "Strom et al 1990 Oncogene 5 pp 345-51 report high general expression" \ "in all tissues." \ "Huang and Ferrell 1996 PNAS 93(19):10078 use a value of 3 nM for oocytes." \ "Here we stick with a much higher expression based on the Strom report." \ "" call /kinetics/MAPK/craf-1*/notes LOAD \ "Singly phosphorylated form of c-raf-1. This is the form that gets" \ "best activated by GTP.Ras." call /kinetics/MAPK/MAPKK/notes LOAD \ "Conc is from Seger et al JBC 267:20 pp14373 (1992)" \ "mwt is 45/46 Kd" \ "We assume that phosphorylation on both ser and thr is needed for" \ "activiation. See Kyriakis et al Nature 358 417 1992" \ "Initial concentration is 0.18" \ "" call /kinetics/MAPK/MAPK/notes LOAD \ "Mol wt is 42 KDa." \ "conc is from Sanghera et al JBC 265 pp 52 (1990)" \ "They estimate MAPK is 1e-4x total protein, and protein is 15% of cell wt," \ "so MAPK is 1.5e-5g/ml = 0.36uM." \ "Lets use this." \ "Note though that Huang and Ferrell 1996 PNAS 93(19):10078" \ "report 1.2 uM in oocytes." \ "Also note that brain concs may be high." \ "Ortiz et al 1995 J. Neurosci 15(2):1285-1297 report " \ "0.3 ng/ug protein in Cingulate Gyrus and 1.2 ng/ug protein" \ "in nucleus accumbens. In hippocampus 270 ng/mg protein for ERK1 and" \ "820 ng/mg protein for ERK 2. " \ "If 15% of cell weight is protein, that means that about 300 * 0.15 ng/ul" \ "is ERK 1. ie, 45e-9g/1e-6 litre = 45 mg/litre or about 1 uM. " \ "For non-neuronal tissues a lower value may be better." call /kinetics/MAPK/craf-1**/notes LOAD \ "Negative feedback by MAPK* by hyperphosphorylating craf-1* gives" \ "rise to this pool." \ "Ueki et al JBC 269(22):15756-15761, 1994" \ "" call /kinetics/MAPK/MAPK-tyr/notes LOAD \ "Haystead et al FEBS Lett. 306(1) pp 17-22 show that phosphorylation" \ "is strictly sequential, first tyr185 then thr183." call /kinetics/MAPK/MAPKK*/notes LOAD \ "MAPKK phosphorylates MAPK on both the tyr and thr residues, first" \ "tyr then thr. Refs: Seger et al JBC267:20 pp 14373 1992" \ "The MAPKK itself is phosphorylated on ser as well as thr residues." \ "Let us assume that the ser goes first, and that the sequential phosphorylation" \ "is needed. See Kyriakis et al Nature 358 417-421 1992" call /kinetics/MAPK/MAPKK*/MAPKKtyr/notes LOAD \ "The actual MAPKK is 2 forms from Seger et al JBC 267:20 14373(1992)" \ "Vmax = 150nmol/min/mg" \ "From Haystead et al FEBS 306(1):17-22 we get Km=46.6nM for at least one" \ "of the phosphs." \ "Putting these together:" \ "k3=0.15/sec, ratio of 4 to get k2=0.6." \ "k1=0.75/46.6nM=2.7e-5" \ "In terms of Michaelis-Menten rates, " \ "Km = 0.046, Vmax = 0.15, ratio = 4." call /kinetics/MAPK/MAPKK*/MAPKKthr/notes LOAD \ "Rate consts same as for MAPKKtyr." call /kinetics/MAPK/MAPKK-ser/notes LOAD \ "Intermediately phophorylated, assumed inactive, form of MAPKK" call /kinetics/MAPK/Raf-GTP-Ras*/notes LOAD \ "This is the main activated form of craf. It really refers to" \ "the complex of GTP-Ras with phosphorylated Raf. See" \ "Leevers 1994 Nature 369:411-414 and" \ "Hallberg et al 1994 JBC 269(6):3913-3916." \ "The naming is a bit awkward but kept in this model for " \ "consistency with previous models" \ "(Bhalla and Iyengar 1999 Science 283:381-387)" \ "" call /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.1/notes LOAD \ "This enzyme activity refers to the complex of phosphorylated Raf and activated" \ "Ras." \ "Starting point for kinetics are the same as for the craf-1* activity, ie.," \ "k1=1.1e-6, k2=.42, k3 =0.105" \ "These are based on Force et al PNAS USA 91 1270-1274 1994 who" \ "report a Km of 0.8 uM and Vmax of ~500 fm/min/ug for MAPKK." \ "These parms cannot reach the observed 4X stim of MAPK. So we" \ "increase the affinity, ie, raise k1 5X to 5.5e-6" \ "which is equivalent to a 5x reduction in Km to about 0.16." \ "" call /kinetics/MAPK/Raf-GTP-Ras*/Raf-GTP-Ras*.2/notes LOAD \ "Same kinetics as other c-raf activated forms. See " \ "Force et al PNAS 91 1270-1274 1994." \ "" call /kinetics/MKP-1/notes LOAD \ "MKP-1 dephosphorylates and inactivates MAPK in vivo: Sun et al Cell 75 " \ "487-493 1993. " \ "See Charles et al PNAS 90:5292-5296 1993 and" \ "Charles et al Oncogene 7 187-190 for half-life of" \ "MKP1/3CH is 40 min. 80% deph of MAPK in 20 min" \ "The protein is 40 KDa." \ "The levels are MKP-1 are highly variable, as it is induced" \ "depending on MAPK activity. This selected value is well below its " \ "induced peak, but sufficiently high so that MAPK will not go into a" \ "runaway activation state." call /kinetics/MKP-1/MKP1-tyr-deph/notes LOAD \ "The original kinetics from Bhalla and Iyengar Science 1999" \ "have now been modified to obey the k2 = 4 * k3 rule," \ "while keeping kcat and Km fixed. The main constraining" \ "data point is the time course of MAPK dephosphorylation, which this" \ "model satisfies." \ "See Charles et al 1993 PNAS 90:5292-5296 and" \ "Charles et al Oncogene 7:187-190" \ "" \ "Effective Km : 67 nM" \ "kcat = 1.43 umol/min/mg" call /kinetics/MKP-1/MKP1-thr-deph/notes LOAD \ "See MKP1-tyr-deph" call /kinetics/Ras-act-craf/notes LOAD \ "Assume binding is fast and limited only by available" \ "Ras*. So kf = kb/[craf-1] " \ "If kb is 1/sec, then kf = 1/0.2 uM = 1/(0.2 * 6e5) = 8.3e-6" \ "Later: Raise it by 10 X to about 1e-4, giving a Kf of 60 for Kb of 0.5" \ "and a tau of approx 2 sec." \ "Based on:" \ "Hallberg et al JBC 269:6 3913-3916 1994, 3% of cellular Raf is" \ "complexed with Ras." \ "This step needed to memb-anchor and activate Raf:" \ "Leevers et al Nature 369 411-414." \ "Also see Koide et al 1993 PNAS USA 90(18):8683-8686" call /kinetics/PPhosphatase2A/notes LOAD \ "Refs: Pato et al Biochem J 293:35-41(93);" \ "CoInit values span a range depending on source." \ "Pato et al 1993 Biochem J 293:35-41 and" \ "Cohen et al 1988 Meth Enz 159:390-408 estimate 80 nM from muscle" \ "" \ "Zolneierowicz et al 1994 Biochem 33:11858-11867 report" \ "levels of 0.4 uM again from muscle, but expression" \ "is also strong in brain." \ "Our estimate of 0.224 is between these two." \ "" \ "There are many substrates for PP2A in this model, so I put" \ "the enzyme rate calculations here:" \ "Takai&Mieskes Biochem J 275:233-239 have mol wt 36 KDa. They" \ "report Vmax of 119 umol/min/mg i.e. 125/sec for k3 for pNPP substrate," \ "Km of 16 mM. This is obviously unreasonable for protein substrates." \ "For chicken gizzard myosin light chan, we have Vmax = 13 umol/min/mg" \ "or about k3 = 14/sec." \ "" \ "Pato et al 1993 Biochem J 293:35-41 report" \ "caldesmon: Km = 2.2 uM, Vmax = 0.24 umol/min/mg. They do not think " \ "caldesmon is a good substrate. " \ "Calponin: Km = 14.3, Vmax = 5." \ "Our values approximate these." \ "" \ "" call /kinetics/PPhosphatase2A/craf-deph/notes LOAD \ "See parent PPhosphatase2A for parms" \ "" call /kinetics/PPhosphatase2A/MAPKK-deph/notes LOAD \ "See: Kyriakis et al Nature 358 pp 417-421 1992" \ "Ahn et al Curr Op Cell Biol 4:992-999 1992 for this pathway." \ "See parent PPhosphatase2A for parms." call /kinetics/PPhosphatase2A/MAPKK-deph-ser/notes LOAD \ "See parent PPhostphatase2A description for rate details" call /kinetics/PPhosphatase2A/craf**-deph/notes LOAD \ "Ueki et al JBC 269(22) pp 15756-15761 1994 show hyperphosphorylation of" \ "craf, so this is there to dephosphorylate it. Identity of phosphatase is" \ "assumed to be PP2A." call /kinetics/Ras/notes LOAD \ " The main refs for Ras are" \ "Boguski and McCormick Nature 366 643-654 '93 Major review" \ "Eccleston et al JBC 268:36 pp 27012-19" \ "Orita et al JBC 268:34 25542-25546" call /kinetics/Ras/bg-act-GEF/notes LOAD \ "SoS/GEF is present at 50 nM ie 3e4/cell. BetaGamma maxes out at 9e4." \ "Assume we have 1/3 of the GEF active when the BetaGamma is 1.5e4." \ "so 1e4 * kb = 2e4 * 1.5e4 * kf, so kf/kb = 3e-5. The rate of this equil should" \ "be reasonably fast, say 1/sec" \ "" call /kinetics/Ras/GEF-Gprot-bg/notes LOAD \ "Guanine nucleotide exchange factor. This activates raf by exchanging bound" \ "GDP with GTP. I have left the GDP/GTP out of this reaction, it would be" \ "trivial to put them in. See Boguski & McCormick." \ "Possible candidate molecules: RasGRF, smgGDS, Vav (in dispute). " \ "rasGRF: Kcat= 1.2/min Km = 680 nM" \ "smgGDS: Kcat: 0.37 /min, Km = 220 nM." \ "vav: Turnover up over baseline by 10X, " \ "" call /kinetics/Ras/GEF-Gprot-bg/GEF-bg_act-ras/notes LOAD \ "Kinetics based on the activation of Gq by the receptor complex in the" \ "Gq model (in turn based on the Mahama and Linderman model)" \ "k1 = 2e-5, k2 = 1e-10, k3 = 10 (I do not know why they even bother with k2)." \ "Lets put k1 at 2e-6 to get a reasonable equilibrium" \ "More specific values from, eg.g: Orita et al JBC 268(34) 25542-25546" \ "from rasGRF and smgGDS: k1=3.3e-7; k2 = 0.08, k3 = 0.02" \ "" call /kinetics/Ras/dephosph-GEF/notes LOAD \ "This rate is based on the known ratio of GDP-Ras to GTP-Ras." \ "Basal: Ras.GTP = 7%" \ "Stimulated 15%" \ "Time course is within 10 min, probably much faster as not" \ "all early data points are there." \ "See Gibbs et al JBC 265(33):20437-20422" call /kinetics/Ras/inact-GEF/notes LOAD \ "This is the amount of inactive GEF available to the system." \ "The value is the same as the estimated amount of SoS, though" \ "I treat it here as a different pool. Probably several molecules" \ "can function as GEFs and this is a simplification." \ "Orita et al JBC 268(34):25542-25546" \ "Gulbins et al 1994 Mol Cell Biol 14(2):906-913" \ "" call /kinetics/Ras/GEF*/notes LOAD \ "Phosphorylated and thereby activated form of GEF. See, e.g." \ "Orita et al JBC 268:34 25542-25546 1993, Gulbins et al." \ "It is not clear whether there is major specificity for tyr or ser/thr." call /kinetics/Ras/GEF*/GEF*-act-ras/notes LOAD \ "Kinetics from Orita et al JBC 268(34):25542-25546." \ "Note that the Vmax is slow, but it does match" \ "the slow GTP hydrolysis rates." \ "" call /kinetics/Ras/GTP-Ras/notes LOAD \ "Only a very small fraction (7% unstim, 15% stim) of ras is GTP-bound." \ "Gibbs et al JBC 265(33) 20437" \ "" call /kinetics/Ras/GDP-Ras/notes LOAD \ "GDP bound form. See Rosen et al Neuron 12 1207-1221 June 1994." \ "the activation loop is based on Boguski and McCormick Nature 366 643-654 93" \ "Assume Ras is present at about the same level as craf-1, 0.2 uM." \ "Hallberg et al JBC 269:6 3913-3916 1994 estimate upto 5-10% of cellular" \ "Raf is assoc with Ras. Given that only 5-10% of Ras is GTP-bound, we" \ "need similar amounts of Ras as Raf." call /kinetics/Ras/Ras-intrinsic-GTPase/notes LOAD \ "This is extremely slow (kf = 1e-4), but it is significant as so little GAP actually" \ "gets complexed with it that the total GTP turnover rises only by" \ "2-3 X (see Gibbs et al, JBC 265(33) 20437-20422) and " \ "Eccleston et al JBC 268(36) 27012-27019" \ "There is no back reaction as we assume this to be a regular" \ "irreversible Michaelis-Menten zeroth order hydrolysis." \ "" call /kinetics/Ras/dephosph-GAP/notes LOAD \ "Assume a reasonably good rate for dephosphorylating it, 0.1/sec." \ "This fits well with resting levels of active kinase and the" \ "degree of activation as well as time-course of turnoff of Ras activation," \ "but data is quite indirect." call /kinetics/Ras/GAP*/notes LOAD \ "Phosphorylated and inactive GAP." \ "See Boguski and McCormick 1993 Nature 366:643-654 for a review." call /kinetics/Ras/GAP/notes LOAD \ "GTPase-activating proteins. See Boguski and McCormick 1993 Nature 366:643-654" \ "Turn off Ras by helping to hydrolyze bound GTP. " \ "This one is probably NF1, ie., Neurofibromin as it is inhibited by AA and lipids," \ "and expressed in neural cells. p120-GAP is also a possible candidate, but" \ "is less regulated. Both may exist at similar levels." \ "See Eccleston et al JBC 268(36) pp27012-19" \ "Level=.002" call /kinetics/Ras/GAP/GAP-inact-ras/notes LOAD \ "From Eccleston et al JBC 268(36)pp27012-19 get Kd < 2uM, kcat - 10/sec" \ "From Martin et al Cell 63 843-849 1990 get Kd ~ 250 nM, kcat = 20/min" \ "I will go with the Eccleston figures as there are good error bars (10%)." \ "The two sets of values are reasonably close." \ "k1 = 1.666e-3/sec, k2 = 1000/sec, k3 = 10/sec (note k3 is rate-limiting)" \ "This is one of the rare cases where we have direct info on the" \ "k3 being rate-limiting. Hence the ratio I use for the k2:k3 rates is" \ "100 rather than the usual 4." call /kinetics/Ras/inact-GEF*/notes LOAD \ "Phosphorylation-inactivated form of GEF. See" \ "Hordijk et al JBC 269:5 3534-3538 1994" \ "and " \ "Buregering et al EMBO J 12:11 4211-4220 1993" \ "" call /kinetics/Ras/CaM-bind-GEF/notes LOAD \ "We have no numbers for this. It is probably between" \ "the two extremes represented by the CaMKII phosph states," \ "and I have used guesses based on this." \ "kf=1e-4" \ "kb=1" \ "The reaction is based on Farnsworth et al Nature 376 524-527" \ "1995" call /kinetics/Ras/CaM-GEF/notes LOAD \ "See Farnsworth et al Nature 376 524-527 1995" call /kinetics/Ras/CaM-GEF/CaM-GEF-act-ras/notes LOAD \ "Kinetics same as GEF-bg_act-ras" \ "" call /kinetics/PKA-active/notes LOAD \ "The free catalytic subunit." call /kinetics/PKA-active/PKA-phosph-GEF/notes LOAD \ "This pathway inhibits Ras when cAMP is elevated. See:" \ "Hordijk et al JBC 269:5 3534-3538 1994" \ "Burgering et al EMBO J 12:11 4211-4220 1993" \ "The rates are the same as used in PKA-phosph-I1" call /kinetics/PKA-active/PKA-phosph-I1/notes LOAD \ "Numbers from Bramson et al CRC crit rev Biochem" \ "15:2 93-124. They have a huge list of peptide substrates" \ "and I have chosen high-ish rates." \ "These consts give too much PKA activity, so lower Vmax 1/3 since" \ "Cohen et al FEBS Lett 76:182-86 1977 say rate =30% PKA act on " \ "phosphokinase beta." \ "" call /kinetics/PKA-active/PKA-phosph-GAP/notes LOAD \ "This activity is not used in this model." call /kinetics/PKA-active/phosph-PDE/notes LOAD \ "Same rates as PKA-phosph-I1" call /kinetics/CaM-Ca4/notes LOAD \ "The four-calcium-bound form of CaM. It is the active form for most" \ "reactions." call /kinetics/Shc*.Sos.Grb2/notes LOAD \ "This three-way complex is one of the main GEFs for activating Ras." call /kinetics/Shc*.Sos.Grb2/Sos.Ras_GEF/notes LOAD \ "Rates from Orita et al JBC 268(34):25542-25546" call /kinetics/EGFR/notes LOAD \ "Epidermal Growth Factor Receptor pathway." \ "Outputs include phosphorylation of Shc which then" \ "couples via Sos/Grb2 to Ras; and direct" \ "phosphorylation of PLC-gamma by the " \ "activated EGFR." call /kinetics/EGFR/EGFR/notes LOAD \ "Berkers et al JBC 266 say 22K hi aff recs." \ "Sherrill and Kyte Biochemistry 35 use range 4-200 nM." \ "These match pretty well. Using 167 nM." call /kinetics/EGFR/act_EGFR/notes LOAD \ "Affinity of EGFR for EGF is complex: depends on [EGFR]." \ "We'll assume fixed [EGFR] and use exptal" \ "affinity ~20 nM (see Sherrill and Kyte" \ "Biochem 1996 35 5705-5718, Berkers et al JBC 266:2 922-927" \ "1991, Sorokin et al JBC 269:13 9752-9759 1994). " \ "Tau =~2 min (Davis et al JBC 263:11 5373-5379 1988)" \ "or Berkers Kass = 6.2e5/M/sec, Kdiss=3.5e-4/sec." \ "Sherrill and Kyte have Hill Coeff=1.7" \ "" call /kinetics/EGFR/L.EGFR/notes LOAD \ "This is terribly simplified: there are many interesting" \ "intermediate stages, including dimerization and assoc" \ "with adapter molecules like Shc, that contribute to the" \ "activation of the EGFR." call /kinetics/EGFR/L.EGFR/phosph_PLC_g/notes LOAD \ "Hsu et al JBC 266:1 603-608 1991" \ "Km = 385 +- 100 uM, Vm = 5.1 +-1 pmol/min/ug for PLC-771." \ "Other sites have similar range, but are not stim as much" \ "by EGF. These rates are improbably slow and are for the " \ "intracellular domain of EGFR alone." \ "Wahl et al JBC 267(15) 10447-10456 1992 reports a tau of 5min for" \ "activation of PLC-gamma in vivo." \ "Also Sherrill and Kyte say turnover # for angiotensin II is" \ "5/min for cell extt, and 2/min for placental. Also see" \ "Okada et al JBC 270(35) 20737-20741 1995" \ " for Shc rates where Km = 0.7 and Vmax = 4.4 pmol/min" \ "To achieve these turnovers and time-courses, we may need to" \ "consider the membrane-plane action of the the receptor, but" \ "for now the rates are consistent with the Wahl et al reports." call /kinetics/EGFR/L.EGFR/phosph_Shc/notes LOAD \ "Rates from Okada et al JBC 270:35 pp 20737 1995" \ "Km = 0.70 to 0.85 uM, Vmax = 4.4 to 5.0 pmol/min. Unfortunately" \ "the amount of enzyme is not known, the prep is only" \ "partially purified." \ "Time course of phosph is max within 30 sec, falls back within" \ "20 min. Ref: Sasaoka et al JBC 269:51 32621 1994." \ "Use k3 = 0.1 based on this tau." \ "" call /kinetics/EGFR/EGF/notes LOAD \ "Epidermal growth factor." call /kinetics/EGFR/SHC/notes LOAD \ "There are 2 isoforms: 52 KDa and 46 KDa (See Okada et al" \ "JBC 270:35 pp 20737 1995). They are acted up on by the EGFR" \ "in very similar ways, and apparently both bind Grb2 similarly," \ "so we'll bundle them together here." \ "Sasaoka et al JBC 269:51 pp 32621 1994 show immunoprecs where" \ "it looks like there is at least as much Shc as Grb2. So" \ "we'll tentatively say there is 0.5 uM of Shc." call /kinetics/EGFR/SHC*/notes LOAD \ "Phosphorylated form of SHC. Binds to the " \ "Sos.Grb2 complex to give the activated GEF form" \ "upstream of Ras." call /kinetics/EGFR/dephosph_Shc/notes LOAD \ "Time course of decline of phosph is 20 min from" \ "Sasaoka et al 1994 JCB 269(51):32621. Part of this is" \ "the turnoff time of the EGFR itself. Lets assume a tau of" \ "10 min for this dephosph, which means a Kf of 0.0016667" call /kinetics/EGFR/Internal_L.EGFR/notes LOAD \ "The internalized and inactive ligand-bound EGFR. There is lots" \ "of interesting cell biology which we are ignoring here." call /kinetics/EGFR/Internalize/notes LOAD \ "See Helin and Beguinot JBC 266:13 1991 pg 8363-8368." \ "In Fig 3 they have internalization tau about 10 min, " \ "equil at about 20% EGF available. So kf = 4x kb, and" \ "1/(kf + kb) = 600 sec so kb = 1/3K = 3.3e-4," \ "and kf = 1.33e-3. This doesn't take into account the" \ "unbound receptor, so we need to push the kf up a bit, to" \ "0.002" \ "This reaction is treated as reversible, thereby" \ "making the approximation that the re-insertion of EGFR into the" \ "membrane is handled by the same process going " \ "backwards. " call /kinetics/Sos/notes LOAD \ "This represents the mSos protein and the Grb2 adapter protein" \ "involved in Ras activation. This module provides for input from" \ "RTKs as well as feedback inhibition from MAPK, although the" \ "latter is not implemented in this specific model." call /kinetics/Sos/Shc_bind_Sos.Grb2/notes LOAD \ "Sasaoka et al JBC 269:51 pp 32621 1994, table on pg" \ "32623 indicates that this pathway accounts for about " \ "50% of the GEF activation. (88% - 39%). Error is large," \ "about 20%. Fig 1 is most useful in constraining rates." \ "" \ "Chook et al JBC 271:48 pp 30472, 1996 say that the Kd is" \ "0.2 uM for Shc binding to EGFR. The Kd for Grb direct binding" \ "is 0.7, so we'll ignore it." call /kinetics/Sos/Sos*.Grb2/notes LOAD \ "Inactive complex of Sos* with Grb2 due to phosphorylation of the Sos." \ "See Porfiri and McCormick 1996 JBC 271(10):5871." call /kinetics/Sos/Grb2_bind_Sos*/notes LOAD \ "Same rates as Grb2_bind_Sos: Porfiri and McCormick JBC" \ "271:10 pp 5871 1996 show that the binding is not affected" \ "by the phosphorylation." call /kinetics/Sos/Grb2/notes LOAD \ "There is probably a lot of it in the cell: it is also known" \ "as Ash (abundant src homology protein). Also " \ "Waters et al JBC 271:30 18224 1996 say that only a small" \ "fraction of cellular Grb is precipitated out when SoS is" \ "precipitated. As most of the Sos seems to be associated" \ "with Grb2, it would seem like there is a lot of the latter." \ "Say 1 uM. This would comfortably saturate the SoS." call /kinetics/Sos/Sos.Grb2/notes LOAD \ "For simplicity I treat the activation of Sos as involving a" \ "single complex comprising Sos, Grb2 and Shc*. This is" \ "reasonably documented:" \ "Sasaoka et al 1994 JBC 269(51):32621-5" \ "Chook et al JBC 1996 271(48):30472" \ "" call /kinetics/Sos/Sos*/notes LOAD \ "Phosphorylated form of SoS. Nominally this is an inactivation step" \ "mediated by MAPK, see Profiri and McCormick 1996 JBC 271(10):5871." \ "I have not put this inactivation in this pathway so this molecule " \ "currently only represents a potential interaction point." call /kinetics/Sos/dephosph_Sos/notes LOAD \ "The best clue I have to these rates is from the time" \ "courses of the EGF activation, which is around 1 to 5 min." \ "The dephosph would be expected to be of the same order," \ "perhaps a bit longer. Lets use 0.002 which is about 8 min." \ "Sep 17: The transient activation curve matches better with" \ "kf = 0.001" call /kinetics/Sos/Grb2_bind_Sos/notes LOAD \ "As there are 2 SH3 domains, this reaction could be 2nd order." \ "I have a Kd of 22 uM from peptide binding (Lemmon et al " \ "JBC 269:50 pg 31653). However, Chook et al JBC 271:48 pg30472" \ "say it is 0.4uM with purified proteins, so we believe them." \ "They say it is 1:1 binding." \ "Porfiri and McCormick JBC 271 also have related data." \ "After comparing with the time-course of 1 min and the efficacy" \ "of activation of Ras, settle on Kd of 0.672 which is close" \ "to the Chook et al value." call /kinetics/Sos/Sos/notes LOAD \ "I have tried using low (0.02 uM) initial concs, but these" \ "give a very flat response to EGF stim although the overall" \ "activation of Ras is not too bad. I am reverting to 0.1 " \ "because we expect a sharp initial response, followed by" \ "a decline." \ "" call /kinetics/PLC_g/notes LOAD \ "This group represents phospholipase C -gamma. Originally PLC-II." \ "Ryu et al JBC 262(26) 12511-12518 1987. " \ "Homma et al Biochem J 269:13-18 is also a good source of early info." \ "" call /kinetics/PLC_g/PLC_g/notes LOAD \ "Amount from Homma et al JBC 263:14 6592-6598 1988." \ "Source is rat brain. " call /kinetics/PLC_g/Ca_act_PLC_g/notes LOAD \ "Nice curves from Homma et al JBC 263:14 6592-6598 1988 " \ "Fig 5c. The activity falls above 10 uM, but that is too high" \ "to reach physiologically anyway, so we'll ignore the higher" \ "pts and match the lower ones only. Half-max at 1 uM." \ "But Wahl et al JBC 267:15 10447-10456 1992 have half-max" \ "at 56 nM which is what I'll use." call /kinetics/PLC_g/Ca_act_PLC_g*/notes LOAD \ "Again, we refer to Homma et al and Wahl et al, for preference" \ "using Wahl et al JBC 267(15):10447-10456 1992. " \ "Half-Max of the phosph form is at 316 nM." \ "Use kb of 10 as this is likely to be pretty fast." \ "As we are phosphorylating the Ca-bound form," \ "equils have shifted. kf should now be 2e-5 (Kf = 12)" \ "to match the reported half-max." \ "" call /kinetics/PLC_g/dephosph_PLC_g/notes LOAD \ "This is a generic balancing dephosphorylation step for the" \ "PLC. Rates are determined by considering balance between " \ "phosph and" \ "non-phosph forms of PLC-gamma. Wahl et al " \ "JBC 267(15) 10447-10456 1992 put the ratio at" \ "50% phosph form in cytoplasm, about 20% in membrane." \ "" call /kinetics/PLC_g/PLC_G*/notes LOAD \ "The phosphorylated form without calcium is not very active." \ "I assume zero activity at zero calcium. As the halfmax for Ca" \ "binding is around 100 nM" \ "from Wahl et al JBC 267(15) 10447-10456 1992," \ "it seems that basal calcium will account for respectable basal" \ "activity." call /kinetics/PLC_g/Ca.PLC_g/PIP2_hydrolysis/notes LOAD \ "Wahl et al JBC 267(15) 10447-10456 1992." \ " Homma et al JBC 263:14 1988 pp 6592. These" \ "parms are the Ca-stimulated form." \ "This is close to Wahl's" \ "figure 7, which I am using as reference." \ "Also see Nakanishi et al Biochem J 256 453-459 1998," \ "Nishibe et al Science 250 :1253-1256" \ "This model uses a rather low PIP2 of 10 uM." call /kinetics/PLC_g/Ca.PLC_g*/PIP2_hydrolysis/notes LOAD \ "Mainly Homma et al JBC 263:14 1988 pp 6592. These" \ "parms are the Ca-stimulated form. " \ " Wahl et al JBC 267:15 10447-10456 1992 say" \ "that the tyrosine phosphorylated form" \ "has 7X higher affinity for substrate than control." \ "" \ "The PIP2 levels in this model are rather low, at 10 uM." call /kinetics/CaMKII/notes LOAD \ "Main reference here is the review by Hanson and Schulman, Ann Rev Biochem" \ "1992 vol 61 pp 559-601. Most of the mechanistic details and a few constants" \ "are derived from there. Many kinetics are from Hanson and Schulman JBC" \ "267:24 17216-17224 1992." \ "The enzymes look a bit complicated." \ "Actually it is just 3 reactions for different sites," \ "by 4 states of CaMKII, defined by the phosphorylation state." \ "This model approximates the fact that the enzyme is actually present as" \ "a decamer/dodecamer. It does so by treating the autophosphorylation reactions" \ "as being independent of the concentration of CaMKII. Also the rates for" \ "the autophosphorylation steps have been scaled to fit this " \ "approximation. " call /kinetics/CaMKII/CaMKII/notes LOAD \ "Huge concentration of CaMKII. In PSD it is 20-40% of protein," \ " so we assume it is around" \ "2.5% of protein in spine as a whole. This level is so high it is unlikely to" \ " matter much if we are off a bit. This comes to about 70 uM." \ "Seen the review:" \ "Hanson and Schulman 1992 Ann. Rev. Biuochem 60:559-601" call /kinetics/CaMKII/CaMKII-CaM/notes LOAD \ "This is the regular, CaM-activated form of CaMKII." \ "See the review" \ "Hanson and Schulman 1992 Ann. Rev. Biochem 60:559-601" call /kinetics/CaMKII/CaMKII-thr286*-CaM/notes LOAD \ "From Hanson and Schulman, the thr286 is responsible for autonomous activation" \ "of CaMKII." call /kinetics/CaMKII/CaMKII***/notes LOAD \ "From Hanson and Schulman, the CaMKII does a lot of autophosphorylation" \ "just after the CaM is released. This prevents further CaM binding and renders" \ "the enzyme quite independent of Ca." call /kinetics/CaMKII/CaMKII-bind-CaM/notes LOAD \ "This is tricky. There is some cooperativity here arising from interactions" \ "between the subunits of the CAMKII holoenzyme. However, the" \ "stoichiometry is 1. " \ "Kd = 0.1 uM. Rate is fast (see Hanson et al Neuron 12 943-956 1994)" \ "Hanson and Schulman 1992 AnnRev Biochem 61:559-601" \ "give tau for dissoc as 0.2 sec at low Ca, 0.4 at high." \ "Low Ca = 100 nM = physiol." call /kinetics/CaMKII/CaMK-thr286-bind-CaM/notes LOAD \ "Affinity is up 1000X over the unphosphorylated CaMKII, which makes the" \ "Kd of 0.1 nM. See Hanson et al 1994 Neuron 12:943-956." \ "Time to release is about 20 sec, so the kb is OK at 0.1/sec." \ "as tested by a few runs." \ "" call /kinetics/CaMKII/CaMKII-thr286/notes LOAD \ "The threonine-286 phosphorylated form of CaMKII. It is likely" \ "to be a short-lived intermediate, since it will be phosphorylated further" \ "as soon as the CAM falls off." call /kinetics/CaMKII/CaMK-thr306/notes LOAD \ "This forms due to basal autophosphorylation, but I think it has to be" \ "considered as a pathway even if some CaM is floating around. In either" \ "case it will tend to block further binding of CaM, and will not display any" \ "enzyme activity. See Hanson and Schulman JBC 267:24 pp17216-17224 1992" call /kinetics/CaMKII/total-CaMKII/notes LOAD \ "This pool is purely here to provide a single, fixed number," \ "which is the total amount of CaMKII. This is used by the" \ "autophosphorylation steps to scale down the rates so that the" \ "autophosphorylation reactions are independent of CaMKII levels." call /kinetics/CaMKII/basal-activity/notes LOAD \ "This reaction represents one of the unknowns in CaMK-II" \ "biochemistry: what maintains the basal level of phosphorylation" \ "on thr 286 ? See Hanson and Schulman Ann Rev Biochem 1992" \ "61:559-601, specially pg 580, for review. I have not been able to" \ "find any compelling mechanism in the literature, but fortunately" \ "the level of basal activity is well documented. " \ "Lisman et al propose that the levels of PP1 are very low in the " \ "postsynaptic density, and PP2A is excluded from the PSD, and this would" \ "lead to autophosphorylation at a sustained level." call /kinetics/CaMKII/tot_CaM_CaMKII/notes LOAD \ "This pool sums the levels of the CaM-bound forms of CaMKII:" \ "CaMKII-CaM + CaMKII-thr286*-CaM. Although their phosphorylation states" \ "are different, the level of activity is about the same so it makes sense" \ "to sum the levels." \ "Hanson et al 1994 Neuron 12:943-956" call /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_305/notes LOAD \ "Rates from autocamtide phosphorylation, from " \ "Hanson and Schulman JBC 267:24 17216-17224 1992. See especially Fig 5." call /kinetics/CaMKII/tot_CaM_CaMKII/CaM_act_286/notes LOAD \ "See Hanson and Schulman 1992 JBC 267(24):17216-17224" call /kinetics/CaMKII/tot_autonomous_CaMKII/notes LOAD \ "This is the sum total of the various CaM-independent forms of the " \ "kinase. There are actually several possible states here, but I only" \ "consider the forms thr-286 phosphorylated form and the doubly/triply" \ "phosphorylated form including the thr305/306, represented here" \ "as CaMKII***" \ "" call /kinetics/CaMKII/tot_autonomous_CaMKII/auton_305/notes LOAD \ "See Hanson and Schulman 1992 JBC 267(24):17216-17224" \ "for afterburst rates of phosphorylation" call /kinetics/CaMKII/tot_autonomous_CaMKII/auton_286/notes LOAD \ "The autonomous rate has a slightly higher Km than the CaM-bound rate," \ "but Vmax is the same." \ "Hanson and Schulman 1992 Ann Rev Biochem 61:559-601" \ "and " \ "Hanson and Schulman 1992 JBC 267(24):17216-17224" call /kinetics/PP1-active/notes LOAD \ "Cohen et al Meth Enz 159 390-408 is main source of info" \ "concentration of enzyme = 1.8 uM" call /kinetics/PP1-active/Deph-thr286/notes LOAD \ "The rates are from Stralfors et al Eur J Biochem 149 295-303 giving" \ "Vmax = 5.7 umol/min giving k3 = 3.5/sec and k2 = 14." \ "Foulkes et al Eur J Biochem 132 309-313 1983 give Km = 5.1 uM so" \ "k1 becomes 5.72e-6" \ "Simonelli 1984 (Grad Thesis, CUNY) showed that other substrates" \ "are about 1/10 rate of phosphorylase a, so we reduce k1,k2,k3 by 10" \ "to 5.72e-7, 1.4, 0.35. " \ "This gives the final Km of 5.1, and Vmax of 0.35/sec." call /kinetics/PP1-active/Deph-thr305/notes LOAD \ "Dephosphorylation kinetics are assumed to be the same for all" \ "phosphorylation sites on CaMKII. " \ "The rates are from Stralfors et al Eur J Biochem 149 295-303 giving" \ "Vmax = 5.7 umol/min giving k3 = 3.5/sec and k2 = 14." \ "Foulkes et al Eur J Biochem 132 309-313 1983 give Km = 5.1 uM so" \ "k1 becomes 5.72e-6" \ "Simonelli 1984 (Grad Thesis, CUNY) showed that other substrates" \ "are about 1/10 rate of phosphorylase a, so we reduce k1,k2,k3 by 10" \ "to 5.72e-7, 1.4, 0.35. " \ "This gives the final Km of 5.1, and Vmax of 0.35/sec." call /kinetics/PP1-active/Deph-thr306/notes LOAD \ "Dephosphorylation kinetics are assumed to be the same for all" \ "phosphorylation sites on CaMKII. " \ "The rates are from Stralfors et al Eur J Biochem 149 295-303 giving" \ "Vmax = 5.7 umol/min giving k3 = 3.5/sec and k2 = 14." \ "Foulkes et al Eur J Biochem 132 309-313 1983 give Km = 5.1 uM so" \ "k1 becomes 5.72e-6" \ "Simonelli 1984 (Grad Thesis, CUNY) showed that other substrates" \ "are about 1/10 rate of phosphorylase a, so we reduce k1,k2,k3 by 10" \ "to 5.72e-7, 1.4, 0.35. " \ "This gives the final Km of 5.1, and Vmax of 0.35/sec." call /kinetics/PP1-active/Deph-thr286c/notes LOAD \ "Dephosphorylation kinetics are assumed to be the same for all" \ "phosphorylation sites on CaMKII. " \ "The rates are from Stralfors et al Eur J Biochem 149 295-303 giving" \ "Vmax = 5.7 umol/min giving k3 = 3.5/sec and k2 = 14." \ "Foulkes et al Eur J Biochem 132 309-313 1983 give Km = 5.1 uM so" \ "k1 becomes 5.72e-6" \ "Simonelli 1984 (Grad Thesis, CUNY) showed that other substrates" \ "are about 1/10 rate of phosphorylase a, so we reduce k1,k2,k3 by 10" \ "to 5.72e-7, 1.4, 0.35. " \ "This gives the final Km of 5.1, and Vmax of 0.35/sec." call /kinetics/PP1-active/Deph_thr286b/notes LOAD \ "Rates are assumed to be the same for all phosphorylation sites" \ "on CaMKII. " \ "The rates are from Stralfors et al Eur J Biochem 149 295-303 giving" \ "Vmax = 5.7 umol/min giving k3 = 3.5/sec and k2 = 14." \ "Foulkes et al Eur J Biochem 132 309-313 1983 give Km = 5.1 uM so" \ "k1 becomes 5.72e-6" \ "Simonelli 1984 (Grad Thesis, CUNY) showed that other substrates" \ "are about 1/10 rate of phosphorylase a, so we reduce k1,k2,k3 by 10" \ "to 5.72e-7, 1.4, 0.35. " \ "This gives the final Km of 5.1, and Vmax of 0.35/sec." call /kinetics/PP1-active/Deph-thr305b/notes LOAD \ "This enzyme activity is not actually used in this model." \ "" call /kinetics/CaM/notes LOAD \ "This is the basic Ca-binding-to-CaM model with the addition of " \ "neurogranin as a CaM sequestering molecule." \ "Main data sources are " \ "Forsen et al 1986 Calcium and Cell funciton VI 113_157" \ "Drabikowski and Brzeska 1982 JBC 257(19):11584-11590" \ "Martin et al 1985 Eur J Biochem 151(3):543-550" \ "Stemmer and Klee 1994 Biochem 33:6859-6866" \ "Data is pretty thorough. The Neurogranin info is from several sources esp" \ "Huang et al 1993 ABB 305(2):570-580" \ "Gerendasy et al 1994 JBC 269(35) 22420-22426 is not very quantitative" call /kinetics/CaM/CaM/notes LOAD \ "There is a LOT of this in the cell: upto 1% of total protein mass. " \ "(Alberts et al, Mol Biol. of the Cell, Garland Publishers)" \ "Say 25 uM. Meyer et al Science 256 1199-1202 1992 refer to studies saying" \ "it is comparable to CaMK levels. " \ "" call /kinetics/CaM/CaM-TR2-bind-Ca/notes LOAD \ "We use the Martin et al 1985 Eur J Biochem 151(3):543-550 rates here, " \ "plus the Drabikowski and Brzeska 1982 JBC 257(19):11584-11590 binding consts." \ "All are scaled by 3X to cell temperature." \ "kf = 2e-10 kb = 72" \ "Stemmer & Klee 1994 Biochem 33:6859-6866 have values of : K1=.9, K2=1.1." \ "Assume 1.0uM for both" \ "" call /kinetics/CaM/CaM-TR2-Ca2-bind-Ca/notes LOAD \ "Stemmer and Klee 1994 Biochem 33:6859-6866" \ "K3 = 21.5, K4 = 2.8. Assuming that the K4 step happens first, we get" \ "kb/kf = 2.8 uM = 1.68e6 so kf =6e-6 assuming kb = 10" \ "" call /kinetics/CaM/CaM-Ca3-bind-Ca/notes LOAD \ "Use K3 = 21.5 uM here from Stemmer and Klee table 3." \ "Stemmer and Klee 1994 Biochem 33:6859-6866" \ "kb/kf =21.5 * 6e5 so kf = 7.75e-7, kb = 10" call /kinetics/CaM/neurogranin-CaM/notes LOAD \ "This is the CaM-bound form of neurogranin. This CaM is taken out" \ "of circulation and thus reduces the signaling through CaM." call /kinetics/CaM/neurogranin-bind-CaM/notes LOAD \ "Surprisingly, no direct info on rates from neurogranin at this time." \ "These rates are based on GAP-43 binding studies. As GAP-43 and " \ "neurogranin share near identity in the CaM/PKC binding regions, and also" \ "similarity in phosph and dephosph rates, I am borrowing GAP-43 " \ "kinetic info." \ "See Alexander et al JBC 262:13 6108-6113 1987" call /kinetics/CaM/neurogranin*/notes LOAD \ "The phosphorylated form of neurogranin" \ " does not bind CaM (Huang et al ABB 305:2 570-580 1993)" call /kinetics/CaM/neurogranin/notes LOAD \ "Also known as RC3 and p17 and BICKS." \ "Concentration in brain >> 2 uM from Martzen and Slemmon J Neurosci 64 92-100 1995. " \ "Concentration in dend spines is much higher than " \ "overall, so it could be anywhere from 2 uM to 50. We will estimate" \ "10 uM as a starting point." \ "Gerendasy et al JBC 269:35 22420-22426 1994 have a skeleton model (no" \ "numbers) indicating CaM-Ca(n) binding." call /kinetics/CaM/dephosph-neurogranin/notes LOAD \ "This is put in to keep the basal levels of neurogranin* experimentally" \ "reasonable. From various papers, specially Ramakers et al JBC 270:23 1995" \ "13892-13898," \ " it looks like the basal level of phosph is between 20 and 40%. I estimate" \ "around 25 % The kf of 0.005 gives around this level at basal PKC" \ "activity levels of 0.1 uM active PKC." call /kinetics/CaM-Ca3/notes LOAD \ "The TR1 end now begins to bind Ca. This form has 2 Ca's on the" \ "TR2 end, and one on the TR1." call /kinetics/CaM-TR2-Ca2/notes LOAD \ "This is the intermediate where the TR2 end (the high-affinity end) has" \ "bound the Ca but the TR1 end has not." call /kinetics/CaM(Ca)n-CaNAB/notes LOAD \ "This pool sums the levels of the CaM.Ca2.CaNAB, CaM.Ca3.CaNAB" \ "and CaM.Ca4.CaNAB pools." call /kinetics/CaM(Ca)n-CaNAB/dephosph_neurogranin/notes LOAD \ "From Seki et al ABB 316(2):673-679" call /kinetics/CaM(Ca)n-CaNAB/dephosph_inhib1/notes LOAD \ "Assume the rates are the same when dephosphorylating I1 either" \ "when it is floating freely, or when it is bound to PP1 catalytic" \ "subunit." \ "This is from Liu and Storm 1989 264(22):12800-12804" call /kinetics/CaM(Ca)n-CaNAB/dephosph-PP1-I*/notes LOAD \ "Liu and Storm JBC 1989 264(22):12800-12804" \ "say Km ~ 5 uM, Vmax = 256 nmol/min/mg ~ 0.34/sec" call /kinetics/PP1/notes LOAD \ "Protein phosphatase 1. This is the primary dephosphorylating enzyme" \ "for CaMKII in this model. " \ "See Cohen and Cohen JBC 265(36):21435-21438" \ "Cohen 1989 Ann Rev Biochem 58:453-508" call /kinetics/PP1/I1/notes LOAD \ "I1 is a 'mixed' inhibitor, but at high enz concs it looks like a non-compet" \ "inhibitor (Foulkes et al Eur J Biochem 132 309-313 9183)." \ "We treat it as non-competitive, so it just turns the enzyme off" \ "without interacting with the binding site." \ "Cohen et al 1989 Ann rev Biochem 58:453-508 refer to results where" \ " concentration of the inhibitor is " \ "1.5 to 1.8 uM. In order to get complete inhib of PP1, which is at 1.8 uM," \ "we need >= 1.8 uM." \ "" \ "" call /kinetics/PP1/I1*/notes LOAD \ "Phosphorylated form of the inhibitor. This has a high affinity for" \ "the PP1 catalytic subunit. Upon binding the PP1 is inactivated." \ "Cohen 1989 Ann Rev Biochem 58:453-508" call /kinetics/PP1/Inact-PP1/notes LOAD \ "K inhib = 1nM from Cohen Ann Rev Bioch 1989, " \ "4 nM from Foukes et al " \ "Assume 2 nM. kf /kb = 8.333e-4" \ "The Kd used here is 0.2 nM. This is small, but unlikely to matter much" \ "as the affinity is so strong that the reaction will be all the way forward" \ "in either case." \ "" \ "Tau < 1 min for inhibition. " \ "Stralfors 1985 Eur J Biochem 149:295-303 fig 8 pg 201." call /kinetics/PP1/PP1-I1*/notes LOAD \ "This form has the inibitory fragment phosphorylated. The binding" \ "of PP1 is tight when the inhibitory fragment is phosphorylated" \ "Cohen 1989 Ann Rev Biochem 58:453-508" call /kinetics/PP1/PP1-I1/notes LOAD \ "This form is bound to the non-phosphorylated inibitory subunit" \ "and is prone to dissociate." \ "Cohen 1989 Ann Rev biochem 58:453-508" call /kinetics/PP1/dissoc-PP1-I1/notes LOAD \ "Assumption is that the affinity of the unphosphorylated form of I1 for" \ "PP1 is extremely weak and that the reaction is essentially all the way" \ "forward. The tau is fast at 1 sec." call /kinetics/PP2A/notes LOAD \ "Protein phosphatase 2A dephosphorylates the inibitory subunit." \ "This is treated as a basal level of dephosphorylation. More specific" \ "and regulated dephosphorylation occurs through CaN, calcineurin." \ "Cohen 1989: Ann rev Biochem 58:453-508" call /kinetics/PP2A/PP2A-dephosph-I1/notes LOAD \ "PP2A does most of the dephosph of I1 at basal Ca levels. See" \ "the review by Cohen in Ann Rev Biochem 1989 58:453-508" \ "I use a Km twice that for the preferred substrates of PP2A." \ "" call /kinetics/PP2A/PP2A-dephosph-PP1-I*/notes LOAD \ "PP2A does most of the dephosph of I1 at basal Ca levels. See" \ "the review by Cohen in Ann Rev Biochem 1989 58:453-508" \ "I use a Km twice that for the preferred substrates of PP2A." \ "Here I assume that the dephosph of the PP1-bound form of I1*" \ "will proceed at the same rate as the unbound I1*." call /kinetics/CaNAB-Ca4/notes LOAD \ "Four calciums bound to CaN. This has an activity " \ "in absence of CaM." \ "Perrino et al 1992 JBC 267(22):15965-15969" call /kinetics/CaNAB-Ca4/dephosph_inhib1_noCaM/notes LOAD \ "The rates here are so slow I do not know if we should even bother" \ "with this enzyme reaction. These numbers are from Liu and Storm" \ "JBC 1989 264(22):12800-12804" \ "They say that the CaM-free form of CaN operates at about the" \ "same Km of 5 uM, but at a much lower Vmax of 1 nmol/min/mg." \ "Other estimates of activity without CaM suggest 10% activity, which" \ "is what I use here." \ "" call /kinetics/PP2B/notes LOAD \ "Also called Calcineurin." \ "Major sources of info:" \ "Cohen, P Ann Rev Biochem 1989 58:453-508" \ "Mumby and Walker Physiol Rev 73:4 673-699" \ "Stemmer and Klee Biochem 33 1994 6859-6866" \ "Liu and Storm JBC 264:22 1989 12800-12804" \ "This model is unusual: There is actually more expt info than I want to" \ "put in the model at this time." \ "Phosph: Hashimoto and Soderling JBC 1989 264:28 16624-16629 (Not used)" call /kinetics/PP2B/CaNAB/notes LOAD \ "Calcineurin A and B subunits." \ "We assume that the A and B subunits of PP2B are always bound under" \ "physiological conditions." \ "" \ "Tallant and Cheung '83 Biochem 22 3630-3635 have conc in many " \ "species, average for mammalian brain is around 1 uM." call /kinetics/PP2B/CaNAB-Ca2/notes LOAD \ "Form of CaN with two Calciums bound." call /kinetics/PP2B/Ca-bind-CaNAB-Ca2/notes LOAD \ "This process is probably much more complicated and involves CaM." \ "However, as I can't find detailed info I am bundling this into a" \ "single step." \ "Based on Steemer and Klee 1994 Biochem 33:6859-6866, this" \ "specific parm on pg 6863, the Kact is 0.5 uM." \ "Assume binding is fast, 1 sec." call /kinetics/PP2B/Ca-bind-CaNAB/notes LOAD \ "going on the experience with CaM, we put the fast (high affinity)" \ "sites first. We only know (Stemmer and Klee) that the affinity is < 70 nM." \ "Assuming 10 nM at first. This doesn't really matter much" \ "because it will always be bound at physiological Ca." call /kinetics/PP2B/CaM-Ca2-bind-CaNAB/notes LOAD \ "Based on Stemmer and Klee 1994 Biochem 33:6859-6866" \ "This model is actually a simplification of the detail they report." \ "In this model the Ca-binding affinity of CaM is not changed by " \ "binding to CaN." \ "Rates here come from a detailed-balance argument. The reference rate" \ "is for CaMCa4 binding to CaNAB. This rate should be 1/2500 of that." call /kinetics/PP2B/CaMCa3-CaNAB/notes LOAD \ "Ca3.CaM.Ca4.CaNAB" \ "This is assumed to have the same enzymatic activity as the other" \ "Ca states of CaM bound to CaNAB. Hence I just put this into a summation" \ "with the other states and utilize the sum for the enzymatic steps." call /kinetics/PP2B/CaMCa2-CANAB/notes LOAD \ "Ca2.CaM.Ca4.CaNAB" \ "The CaM has only 2 calciums attached, but CaNAB has all 4." \ "This contributes equally to enzyme activity along with" \ "the Ca3 and Ca4 forms." call /kinetics/PP2B/CaMCa4-CaNAB/notes LOAD \ "Ca4.CaM.Ca4.CaNAB. This form is fullly loaded with Ca. Its activity" \ "is assumed to be the same as the lower Ca-bound forms of CaM.Ca4.CaNAB." \ "" call /kinetics/PP2B/CaMCa3-bind-CaNAB/notes LOAD \ "Rates derived from the CaMCa4 binding to CaNAB-Ca4 step." \ "Due to detailed balance calculations taking the Ca affinity for CaM" \ "into account, this reaction should be 250 times slower. Close." call /kinetics/PP2B/CaMCa4-bind-CaNAB/notes LOAD \ "This step is the starting point for calculating all the CaM-binding" \ "steps to CaNAB-Ca4. The calculation goes like this:" \ "From Stemmer and Klee 1994 Biochem 33 6859-6866 we have rates for" \ "Ca binding to CaM.Ca4.CaN." \ "From detailed balance (Kd must be 1 around a loop) we can set ratios of" \ "Kds for CaMCa3 binding to CaN, and CaM-Ca2 binding to CaN. Thus those" \ "rates can come once we know the Kd for the current reaction of" \ "CaMCa4 binding to CaN." \ "We'll ignore the Ca binding steps to CaM.Ca4.CaN since the reactions " \ "around the remaining part of the loop will settle pretty fast to the same" \ "levels." \ "Finally, we estimate the kf=0.001 here from a series of simulations" \ "matching the curves in Stemmer and Klee." call /kinetics/PKA/notes LOAD \ "Protein kinase A. It has two regulatory and two catalytic subunits," \ "represented here as R2C2. Each regulatory subunit binds two cAMPs." \ "I also model an inhibitor of PKA which binds stoichiometrically and thus" \ "sharpens the response curve for PKA against cAMP." \ "General reference: Taylor et al Ann Rev Biochem 1990 59:971-1005" \ "Other references" \ "Ogreid and Doskeland 1983 Biochem 22:1686-1696 is a great, detailed paper." \ "Also: Ogreid and Doskeland 1982 FEBS Lett 150(1):161-166" \ "Ogreid et al 1983 JBC 258(2):1041-1049" \ "Robinson-Steiner and Corbin 1983 JBC 258(2):1032-1040" \ "Hasler et al 1992 FASEB J 6:2735-2741" call /kinetics/PKA/R2C2/notes LOAD \ "This is the R2C2 complex, consisting of 2 catalytic (C)" \ "subunits, and the R-dimer. See Taylor et al Ann Rev Biochem" \ "1990 59:971-1005 for a review." \ "The Doskeland and Ogreid review is better for numbers." \ "Amount of PKA is about .5 uM." call /kinetics/PKA/R2C2-cAMP/notes LOAD \ "One cAMP bound to site B1 on the regulatory subunits." call /kinetics/PKA/cAMP-bind-site-B1/notes LOAD \ "Hasler et al FASEB J 6:2734-2741 1992 say Kd =1e-7M" \ "for type II, 5.6e-8 M for type I. " \ "" \ "Smith et al PNAS USA 78:3 1591-1595 1981 say that" \ "Ka1 is 2.1e7/M which gives a Kd of 47 nM," \ "Kan = 5e8/M or Kd of 2nM." \ "" \ "I prefer numbers from " \ "Ogreid and Doskeland Febs Lett 129:2 287-292 1981." \ "Their conditions are more physiological. They have figs" \ "suggesting time course of complete assoc is < 1 min." call /kinetics/PKA/cAMP-bind-site-B2/notes LOAD \ "For now let us set this to the same Km (1e-7M) as" \ "site B1. This gives kf/kb = .7e-7M * 1e6 / (6e5^2) : 1/(6e5^2)" \ "= 2e-13:2.77e-12" \ "" call /kinetics/PKA/cAMP-bind-site-A1/notes LOAD \ "This site has a higher Kd for cAMP." \ "See Ogreid and Doskeland 1982 FEBS Lett 150:1 161-166" call /kinetics/PKA/cAMP-bind-site-A2/notes LOAD \ "Cooperativity kicks in, now we have a low Kd for cAMP." call /kinetics/PKA/R2C2-cAMP2/notes LOAD \ "One cAMP bound to each of the B sites on the regulatory subunits." call /kinetics/PKA/R2C2-cAMP3/notes LOAD \ "3 cAMPs now bound." call /kinetics/PKA/R2C2-cAMP4/notes LOAD \ "All the regulatory subunits now have cAMP bound. This state" \ "is ready to dissociate and to release the catalytic subunit." call /kinetics/PKA/R2-cAMP4/notes LOAD \ "The regulatory subunit with 4 cAMPs but the catalytic subunit has been" \ "released." call /kinetics/PKA/Release-C1/notes LOAD \ "The complex starts to dissociate and release the catalytic subunit C." \ "" \ "This has to be fast, as the activation of PKA by cAMP" \ "is also fast." \ "" call /kinetics/PKA/Release-C2/notes LOAD \ "Second catalytic subunit is now released." call /kinetics/PKA/PKA-inhibitor/notes LOAD \ "About 25% of PKA C subunit is dissociated in resting cells without" \ "having any noticable activity." \ "Doskeland and Ogreid Int J biochem 13 pp1-19 suggest that this is" \ "because there is a corresponding amount of inhibitor protein." call /kinetics/PKA/inhib-PKA/notes LOAD \ "See Doskeland and Ogreid Int J Biochem 13:1-19." \ "Not clear what the rates are, but the reaction has to be fast and it has" \ "to have a pretty high affinity. The exact values are not critical" \ "under these conditions." call /kinetics/PKA/inhibited-PKA/notes LOAD \ "This is the inhibitor bound to PKA." call /kinetics/AC/notes LOAD \ "The adenylyl cyclase module currently represents only two isoforms:" \ "AC1 and AC2. There are at least 8 forms of AC known:" \ "Pieroni et al 1993 Curr Op Neurobiol 3:345-351." \ "AC1 is stimulated by CaM, and AC2 by phosphorylation by PKC, in addition" \ "to the usual Gs stimulation." \ "A more recent thorough review is " \ "Defer et al 2000 Am J Physiol Renal Physiol 279:F400-F416" \ "This model does not incorporate effects such as GAP activity of the" \ "cyclases." call /kinetics/AC/ATP/notes LOAD \ "ATP is present in all cells between 2 and 10 mM. See Lehninger." call /kinetics/AC/AC1-CaM/notes LOAD \ "This state of AC1 is bound to Calmodulin and therefore activated." \ "Gs stimulates it but betagamma inhibits." call /kinetics/AC/AC1-CaM/kenz/notes LOAD \ "Vmax is assumed to be the same as that for the Gs-stimulated form." \ "The rates are from: " \ "Smigel 1986 JBC 261(4):1976-1982 who has " \ "8.27 umol/min/mg with forskolin stimulated AC." \ "Tang et al JBC 266(13):8595-8603 have an almost identical Vmax" \ "of 8 umol/min/mg." \ "This comes to a Vmax of 18/sec." \ "The Km is pretty immaterial since the vast excess of" \ "ATP means that the enzyme will normally be saturated." \ "This is a pretty fast enzyme." \ "Note that the saturation of the enzyme means that the regulatory" \ "reactions have to involve the complex rather than the free enzyme." call /kinetics/AC/AC1/notes LOAD \ "AC concentrations are tricky due to poor antibodies. I refer to an estimate" \ "from Jacobowitz, PhD Thesis, Mount Sinai School of Medicine" \ "around Pg 149 which estimates cyclase" \ "as 1/12600 of membrane protein. This gives a whole-cell conc of" \ "about 33 nM using assumptions of 2% of cell mass being membrane protein." \ "Defer et al 2000 Am J Physiol Renal Physiol 279:F400-F416 in a good review" \ "put AC1 and AC8 (which has similar properties)" \ "as among the highly expressed form of brain cyclase." \ "We therefore estimate its levels as a good fraction of the 33 nM," \ "at 20 nM." call /kinetics/AC/CaM-bind-AC1/notes LOAD \ "Half-max at 20 nM CaM (Tang et al JBC 266:13 8595-8603 1991" \ "Assume a rapid CaM binding of 1/sec." call /kinetics/AC/AC2*/notes LOAD \ "This is the phosphorylation-activated form of AC2." call /kinetics/AC/AC2*/kenz/notes LOAD \ "The Vmax is scaled down to 7/sec from the Gs-stimulated form. This is" \ "constrained because we have a measure of basal activity" \ "due to basal phosphorylation by PKC. Two papers measure" \ "activation of AC2 by phosphorylation without Gs:" \ "Jacobowitz et al JBC 268(6):3829-3832 (Stim 3x) and" \ "Yoshimura and Cooper 1993 JBC 26(7):4604-4607 (Stim 9x)." \ "The conditions are somewhat different in the two cases." \ "" \ "The reference maximally stimulated Vmax is 18/sec from" \ "Smigel 1986 JBC 261(4):1976-1982 who has " \ "8.27 umol/min/mg with forskolin stimulated AC." \ "Tang et al JBC 266(13):8595-8603 have an almost identical Vmax" \ "of 8 umol/min/mg." \ "This comes to a Vmax of 18/sec." \ "The Km is pretty immaterial since the vast excess of" \ "ATP means that the enzyme will normally be saturated." \ "This is a pretty fast enzyme." \ "Note that the saturation of the enzyme means that the regulatory" \ "reactions have to involve the complex rather than the free enzyme." call /kinetics/AC/AC2-Gs/notes LOAD \ "This is the generic Gs-Stimulated form of AC2" \ "" call /kinetics/AC/AC2-Gs/kenz/notes LOAD \ "Vmax is assumed to be the same as for AC1. This is consistent since" \ "there is a good match between the mixture of ACs tested by" \ "Smigel 1986 JBC 261(4):1976-1982 who has " \ "8.27 umol/min/mg with forskolin stimulated AC." \ "Tang et al JBC 266(13):8595-8603 have an almost identical Vmax" \ "of 8 umol/min/mg for AC1." \ "This comes to a Vmax of 18/sec." \ "The Km is pretty immaterial since the vast excess of" \ "ATP means that the enzyme will normally be saturated." \ "This is a pretty fast enzyme." \ "Note that the saturation of the enzyme means that the regulatory" \ "reactions have to involve the complex rather than the free enzyme." call /kinetics/AC/AC2/notes LOAD \ "AC concentrations are tricky due to poor antibodies. I refer to an estimate" \ "from Jacobowitz, PhD Thesis, Mount Sinai School of Medicine" \ "around Pg 149 which estimates cyclase" \ "as 1/12600 of membrane protein. This gives a whole-cell conc of" \ "about 33 nM using assumptions of 2% of cell mass being membrane protein." \ "Defer et al 2000 Am J Physiol Renal Physiol 279:F400-F416 in a good review" \ "put AC2 among the highly expressed form of brain cyclase." \ "We therefore estimate its levels as a good fraction of the 33 nM," \ "at 15 nM. This actually adds up to a little more than 33, but it is well" \ "within error estimates." call /kinetics/AC/dephosph-AC2/notes LOAD \ "Rate constrained by balancing levels of phosphorylated form, especially" \ "given resting PKC levels." call /kinetics/AC/AC1-Gs/notes LOAD \ "This is the generic Gs-Stimulated state of AC1." \ "Note that the enzyme is normally saturated, so all reactions " \ "involving AC1-Gs actually relate to the enzyme-substrate complex." call /kinetics/AC/AC1-Gs/kenz/notes LOAD \ "Vmax is from " \ "Smigel 1986 JBC 261(4):1976-1982 who has " \ "8.27 umol/min/mg with forskolin stimulated AC." \ "Tang et al JBC 266(13):8595-8603 have an almost identical Vmax" \ "of 8 umol/min/mg." \ "This comes to a Vmax of 18/sec." \ "The Km is pretty immaterial since the vast excess of" \ "ATP means that the enzyme will normally be saturated." \ "This is a pretty fast enzyme." \ "Note that the saturation of the enzyme means that the regulatory" \ "reactions have to involve the complex rather than the free enzyme." call /kinetics/AC/Gs-bind-AC2/notes LOAD \ "Half-max at around 3nM = kb/kf from fig 5 in " \ "Feinstein et al PNAS USA 88 10173-10177 1991" \ "kf = kb/1800 = 5.56e-4 kb" \ "Ofer Jacobowitz's thesis data indicates it is more like 2 nM." \ "Jacobowitz, PhD Thesis, Mount Sinai School of Medicine." \ "" call /kinetics/AC/Gs-bind-AC1/notes LOAD \ "Half-max 8nM from Tang et al JBC266:13 8595-8603" \ "kb/kf = 8 nM = 4800#/cell " \ "Also assume rapid binding of 1/sec." call /kinetics/AC/AMP/notes LOAD \ "AMP is a tightly regulated metabolite, so here we simply buffer" \ "it to its resting value. The value doesn't really matter to any" \ "of the calculations since it acts like a one-way sink." call /kinetics/AC/AC2*-Gs/notes LOAD \ "This is the form activated synergistically by phosphorylation as" \ "well as Gs binding." call /kinetics/AC/AC2*-Gs/kenz/notes LOAD \ "The Km is higher here but it is still well below the level of ATP so the" \ "enzyme remains saturated." \ "The Vmax is 3x higher than the reference forskolin stimulated form." \ "This scale factor is a compromise between the 2x rise reported by" \ "Jacobowitz et al JBC 268(6): 3829-3832 and the 9x rise reported by " \ "Yoshimura and Cooper 1993 JBC 268(7):4604-4607." \ "" \ "The reference Vmax is from " \ "Smigel 1986 JBC 261(4):1976-1982 who has " \ "8.27 umol/min/mg with forskolin stimulated AC." \ "Tang et al JBC 266(13):8595-8603 have an almost identical Vmax" \ "of 8 umol/min/mg." \ "This comes to a Vmax of 18/sec." \ "The Km is pretty immaterial since the vast excess of" \ "ATP means that the enzyme will normally be saturated." \ "This is a pretty fast enzyme." \ "Note that the saturation of the enzyme means that the regulatory" \ "reactions have to involve the complex rather than the free enzyme." call /kinetics/AC/Gs-bind-AC2*/notes LOAD \ "Various references:" \ "Jacobowitz et al JBC 268(6):3829-3892 show that AC2 has" \ "a 2x rise in basal activation on phosphorylation," \ "and a 2x rise in forskolin stimulated activation." \ "" \ "Yoshimura and Cooper JBC 1993 268(7):4604-4607 say that" \ "type II is stimulated 9x over basal. " \ "" \ "Lustig et al 1993 JBC 268(19):13900-13905 syow a 2x activation" \ "by PDBu, and the Gs stimulated response is increased 2x-4x by" \ "PDBu." \ "" \ "To match all these results with the binding of the unphosphorylated form" \ "we use a Kd of 1.2 nM here as compared with the Kd of 2 nM for the" \ "unphosphorylated reaction." call /kinetics/AC/cAMP-PDE/notes LOAD \ "The levels of the PDE are not known at this time. However," \ "enough" \ "kinetic info and info about steady-state levels of cAMP" \ "etc are around" \ "to make it possible to estimate this." call /kinetics/AC/cAMP-PDE/PDE/notes LOAD \ "Best rates are from Conti et al Biochem 34 7979-7987 1995." \ "Though these are for the Sertoli cell form, it looks like they carry" \ "nicely into alternatively spliced brain form. See Sette et al" \ "JBC 269:28 18271-18274" \ "Borisy et al J Neurosci 12(3):915-923 also have estimates with a Km of 40 uM" \ "specifically for brain PDE. The Vmax is very low and it looks like the purification is not good." \ "" \ "Combining this with data from the Conti paper and the Sette paper," \ "it looks like a fair compromise is " \ "Km ~20 uM, Vmax est ~ 10 umol/min/mg or about 10/sec." \ "" call /kinetics/AC/cAMP-PDE*/notes LOAD \ "This form has about 2X activity as plain PDE. See Sette et al JBC 269:28" \ "18271-18274 1994." call /kinetics/AC/cAMP-PDE*/PDE*/notes LOAD \ "This form has about twice the activity of the unphosphorylated form. See" \ "Sette et al JBC 269:28 18271-18274 1994." \ "We'll ignore cGMP effects for now. The Vmax is therefore scaled to twice" \ "the value used in the unstimulated PDE enzyme." call /kinetics/AC/dephosph-PDE/notes LOAD \ "The rates for this are poorly constrained. In adipocytes (probably a" \ "different PDE) the dephosphorylation is complete within 15 min, but" \ "there are no intermediate time points so it could be much faster. Identity" \ "of phosphatase is still unknown." call /kinetics/AC/PDE1/notes LOAD \ "CaM-Dependent PDE. 66KDa" \ "Borisy et al J Neurosci 12(3):915-923" \ "About 0.6% of membrane protein. so estimate 2 uM as " \ "conc in brain." \ "Also see Conti et al Adv Sec Mess Phosphoprotein Res 1992 25:87-99" call /kinetics/AC/PDE1/PDE1/notes LOAD \ "From Borisy et al J Neurosci 12(3):915-923 the basal rate goes up 6x" \ "with Ca stimulation." \ "Km = 40. The stimulated Vmax in this paper is very low. But" \ "Conti et al 1994 Biochem 34:7979-7987 report a 2000x purified form which" \ "has a stimulated Vmax of 10 umol/min/mg or about 10/sec (given that the" \ "mol wt is around 65KDa.)." \ "Here we use a Vmax = 1/6 of the CaM stim form." \ "" call /kinetics/AC/CaM.PDE1/notes LOAD \ "PDE1 is the 66 KDa form which binds CaM." \ "Borisy et al J Neurosci 12(3):915-923 report a 6x stimulation with calcium." call /kinetics/AC/CaM.PDE1/CaM.PDE1/notes LOAD \ "From Conti et al 1995 Biochem 34:7979-7987 the stimulated Vmax is" \ " ~10umol/min/mg in presence of lots of CaM. This works out to about" \ "10/sec." \ "Affinity is low, 40 uM." \ "" call /kinetics/AC/CaM_bind_PDE1/notes LOAD \ "Borisy et al J Neurosci 12(3):915-923" \ "For olf epithelium PDE1, affinity is 7 nM CaM and about 2 uM Ca which" \ "is consistent with it binding Ca4.CaM at 7 nM. Assume same for brain." \ "Reaction should be pretty fast. Assume kb = 5/sec." \ "" call /kinetics/Gs-alpha/notes LOAD \ "This is actualy GTP.Gs_alpha, the active form of Gs." \ "Resting Gs-alpha is nearly zero. " call /kinetics/remove_glu/notes LOAD \ "This reaction doubles for arrival as well as removal of glu from" \ "the synapse." \ "Assume tau for removal of glu is ~1 msec. We know that diffusion" \ "time for arrival of glu from presynaptic side is < 50 usec." \ "Most of the actual synaptic delay has to do with binding to the" \ "receptors." call /kinetics/synapse/notes LOAD \ "A pool representing the presynaptic terminal and release of " \ "glutamate. It is controlled by" \ "the temporal pattern of the synaptic input." call /kinetics/Ca_tab/notes LOAD \ "Set up with a single Ca pulse for a train of 100 stim " \ "in 1 sec." call /kinetics/CaRegulation/notes LOAD \ "This simple implementation of Ca regulation includes three compartments:" \ "the extracellular, the intracellular, and the Ca stores. Pumps maintain" \ "the Ca levels in cytoplasm (pumping out to the extracellular space and" \ "into the stores). Leak channels from the stores and extracellular space" \ "balance it out. Finally, the IP3 receptor and the capacitive entry " \ "channel respond to stimuli of various kinds." \ "One clear direction for further work is to incorporate various calcium" \ "buffering proteins such as calsequestrin into the model." \ "Primary reference is from the book" \ "Receptors: Models for binding, trafficking and signaling, by" \ "Lauffenburger and Linderman, OUP, 1993, Ch 5, around pg 200. There" \ "is extensive reference to a submitted paper by Mahama and Linderman, whose" \ "published version appears to be " \ "Mahama and Linderman 1994 Biophys J 67(3):1345-1357" \ "This model is a little artificial on the IP3R kinetics and does not include" \ "the Ca influence on IP3R." call /kinetics/CaRegulation/CaTraspATPase/notes LOAD \ "kCa3 = 2 * Ca transporter rate since each step has 2 Ca++. " \ "= 0.5 uM/sec from Lauffenburger and Linderman 1993 Receptors pg 200." \ "The amount of the activated transporter is about 0.01 uM = 6e3 #." \ "from runs." \ "So 0.01uM * kf * 2 = 0.5 uM/sec (no back reaction)" \ "so kf = 25, kb = 0" \ "Alternatively, 6e3 * kf = 0.25 * 6e5, giving the same kf" call /kinetics/CaRegulation/Ca-sequester/notes LOAD \ "This is the sequestered Calcium pool." \ "The vol is 0.16 * the vol of the cell as a whole." \ "This pool should really equilibrate with a highly buffered pool of" \ "Calcium, but that is not present in this version of the model." \ "" call /kinetics/CaRegulation/Ca-leak-to-cytoplasm/notes LOAD \ "This pool represents the channels which leak Ca into the cytoplasm." \ "It is a probably a composite of various channels depending on" \ "cell type. Membrane potential will obviously affect the leak amount," \ "but that is not considered." \ "The amounts and total flux are constrained by the need to balance the" \ "Ca flux and keep basal Ca levels around 80 nM." call /kinetics/CaRegulation/Ca-leak-to-cytoplasm/Ca-leak-chan/notes LOAD \ "This ch" call /kinetics/CaRegulation/CaTransp-2Ca/notes LOAD \ "This is equivalent to the enzyme-substrate complex." \ "2 Ca are bound to the transporter. The ATP is ignored." call /kinetics/CaRegulation/CaTransp/notes LOAD \ "The calcium transporter levels are constrained by the resting levels" \ "of Ca in the cell. The rate of Ca" \ "sequestration depends on the amount of this pool." \ "" call /kinetics/CaRegulation/Ca-bind-to-Transp/notes LOAD \ "Rates from Lauffenberger and Linderman 1993 Receptors pg 200." \ "Kd = KCa2 = 0.2 uM." \ "" call /kinetics/CaRegulation/IP3R/notes LOAD \ "The number of the IP3Rs in the cell is present only implicitly in the" \ "model, and is lumped in with the total permeability of the IP3R pool." \ "The latter term is constrained by the height of the Ca transient." \ "" call /kinetics/CaRegulation/IP3Rbind/notes LOAD \ "Based on Lauffenburger and Linderman 1993 Receptors page 200. " \ "The binding of IP3 in this reaction has a Hill coeff of 3. The eqns of " \ "Mahama and Linderman (cited in the book as 1993 a)" \ "are equivalent to the binding all occurring in a single step, so that is how" \ "I am doing it in this version." \ "Their Ki1 is 0.07 uM." \ "Lots of other data sources:" \ "Ramos-Franco et al 1998 Biophys J 75:834-839 have Ca sensitivity " \ "curves. At 250 nM free Ca, the EC50 for type 1 is 58 nM and" \ " type 2 is 194 nM. Type 3 would be about 2 uM according to " \ "Newton et al 1994 JBC 268(46):28613-28619" \ "For the purposes of this model we use a Kd of 2.7 uM which is high but" \ "may be OK at low calcium. The details of Ca interaction with the IP3R" \ "are not included in this model." \ "" call /kinetics/CaRegulation/IP3R*/notes LOAD \ "This is the ligand-bound form of the IP3 receptor. " \ "" call /kinetics/CaRegulation/IP3R*/IP3chan/notes LOAD \ "The max flow through this channel (assuming all open) is" \ "kCa1 = 0.1 sec^-1 in the M&L model. " \ "kCa1 = #IP3Rtot * permeability, and we have assumed #IP3Rtot = 1e4." \ "dconc = perm * concgrad * #chan / vol = 0.1 * concgrad" \ "so perm = 0.1 * vol / #chan = 0.1 * 6e5 / 1e5 = 0.6" \ "perm = 0.1 * 96000 / 1e4 = 9.6e-1" \ "Try 20 X to get reasonable response" \ "13 Oct 2k: Raised 10x to 200." call /kinetics/CaRegulation/CaEPump/notes LOAD \ "The calcium electrogenic pump." \ "See McBurney and Neering 1987 TINS 10(4):164-169" \ "We treat the pump as a simple Michaelis-Menten enzyme." \ "Levels are constrained tightly by the need to keep resting Ca levels" \ "at about 80 nM." call /kinetics/CaRegulation/CaEPump/Ca-pump-out/notes LOAD \ "From McBurney and Neering TINS 10(4) 164-169 1987. We are using the" \ "high-affinity pump here," \ "Their numbers exceed M&L so I am reducing" \ "the rates by 10X. Need to check." \ "k1 = 3e-3, k2 = 288, k3 = 72, n = 1000." \ "" \ "This comes to a Km of 0.2 for Ca, and a Vmax of 72." call /kinetics/CaRegulation/Ca-ext/notes LOAD \ "Extracell Ca conc = 4 mM" \ "Extracell vol assumed 100 X cell vol" \ "It is kept buffered anyway for the puroposes of the model," \ "so the concentration won't change." call /kinetics/CaRegulation/Ca-leak-from-extracell/notes LOAD \ "This represents the pool of Ca leak channels." \ "The concentration gradient is so large that this pool only needs a small " \ "number of molecules." \ "For an equilibrium at 0.1 uM we need flow of 36e3/sec. " \ "With a permeability of 0.01 and" \ "a concentration gradient of 4mM->0.1 uM (4e4) we get" \ "flux = N * perm * grad => N = 36e3 / (1e-2 * 4e3) = 900" \ "if flux = 20e3, N =500, which is what we use. This works out to " \ "a concentration of 0.83 nM." \ "" call /kinetics/CaRegulation/Ca-leak-from-extracell/Ca-leak-chan/notes LOAD \ "This ch" call /kinetics/CaRegulation/capacitive_Ca_entry*/notes LOAD \ "This mechanism has taken a while to be more tightly confirmed as" \ "probably being the TRP channel." \ "In this model the channel is implemented to match" \ " experimental observations about capacitive " \ "Ca entry. Levels are set by two constraints: the resting Ca levels, and" \ "the height of the response to IP3." \ "" call /kinetics/CaRegulation/capacitive_Ca_entry*/Cap_entry_chan/notes LOAD \ "13 Oct 2000: Scaled up perm 2x to 0.01 to get larger" \ "Ca responses to IP3." call /kinetics/CaRegulation/inactivate_cap_Ca/notes LOAD \ "The Kd is set to about 3 uM, so that at resting " \ "Ca the capacitive Ca entry is almost blocked." \ "A 2nd order response makes the response steep." \ "" call /kinetics/CaRegulation/inact_cap_entry/notes LOAD \ "This represents the portion of the capacitive-Ca entry channel which is" \ "blocked when there is lots of Ca sequestered in the stores." call /kinetics/Ca_intracell/notes LOAD \ "This is the pool representing intracellular calcium." \ "Resting levels are around 80 nM, but this is subject to all" \ "sorts of influxes and pumps." call /kinetics/Ca/notes LOAD \ "This calcium pool is treated as being buffered to a" \ "steady 0.08 uM, which is the resting level. " call /kinetics/IP3/notes LOAD \ "Peak IP3 is ~ 15 uM, basal ~ 0.2 uM." call /kinetics/PIP2/notes LOAD \ "PIP2 is a bit troublesome in this model. Its level is well below what" \ "it should be based on more recent data. This value is kept in this" \ "model to correspond to the Km used in the enzymes. A scale factor" \ "of 5-10 in both terms would cancel out but improve the parameter estimate." call /kinetics/doqcsinfo/notes LOAD \ "This model is an annotated version of the synaptic signaling network.
The primary reference is Bhalla US and Iyengar R. Science (1999) 283(5400):381-7 but several of the model pathways have been updated." complete_loading