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Molecule Parameter List for R2C2-cAMP

The statistics table lists the distribution of a molecule acting either as a substrate, product, enzyme or as a molecule within the network.
The text color of a molecule is highlighted by color.
Statistics
R2C2-cAMP participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000011

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • AMPAR_traff_
    model0
  • 59Network
    Shared_Object_AMPAR_traff_model0 CaMKII CaM 
    PP1 PP2B PP1_PSD 
    PKA AC AMPAR 
    AMPAR_memb 
    This is model 0 from Hayer and Bhalla, PLoS Comput Biol 2005. It has a bistable model of AMPAR traffick, plus a non-bistable model of CaMKII. This differs from the reference model (model 1) in that model0 lacks degradation and turno ver reactions for AMPAR.

    R2C2-cAMP acting as a Molecule in  
    AMPAR_traff_model0 Network
    NameAccession NamePathway NameInitial Conc.
    (uM)
    Volume
    (fL)
    Buffered
    R2C2-cAMP
  • AMPAR_traff_
    model0

    Accession No. : 59
  • PKA
    Pathway No. : 240
    00.09No
    CoInit was .0624

    R2C2-cAMP acting as a Substrate in a reaction in  
    AMPAR_traff_model0 Network
    Kd is calculated only for second order reactions, like nA+nB <->nC or nA<->nC+nD, where n is number and A,B,C,D are molecules, where as for first order reactions Keq is calculated. Kd for higher order reaction are not consider.
    NameAccession NamePathway NameKfKbKdtauReagents
  • cAMP-bind-site-B
    2
  • AMPAR_traff_
    model0

    Accession No. : 59
  • PKA
    Pathway No. : 240
    54
    (uM^-1 s^-1)
    33
    (s^-1)
    Kd(bf) = 0.6111(uM)-Substrate
    R2C2-cAMP
    cAMP

    Product
    R2C2-cAMP2
    For now let us set this to the same Km (1e-7M) as site B. This gives kf/kb = .7e-7M * 1e6 / (6e5^2) : 1/(6e5^2) = 2e-13:2.77e-12 Smith et al have better values. They say that this is cooperative, so the consts are now kf/kb =8.3e-4

    R2C2-cAMP acting as a Product in a reaction in  
    AMPAR_traff_model0 Network
    Kd is calculated only for second order reactions, like nA+nB <->nC or nA<->nC+nD, where n is number and A,B,C,D are molecules, where as for first order reactions Keq is calculated. Kd for higher order reaction are not consider.
    NameAccession NamePathway NameKfKbKdtauReagents
  • cAMP-bind-site-B
    1
  • AMPAR_traff_
    model0

    Accession No. : 59
  • PKA
    Pathway No. : 240
    54
    (uM^-1 s^-1)
    33
    (s^-1)
    Kd(bf) = 0.6111(uM)-Substrate
    R2C2
    cAMP

    Product
    R2C2-cAMP
    Hasler et al FASEB J 6:2734-2741 1992 say Kd =1e-7M for type II, 5.6e-8 M for type I. Take mean which comes to 2e-13 #/cell Smith et al PNAS USA 78:3 1591-1595 1981 have better data. First kf/kb=2.1e7/M = 3.5e-5 (#/cell). Ogreid and Doskeland Febs Lett 129:2 287-292 1981 have figs suggesting time course of complete assoc is < 1 min.



    Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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