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Molecule Parameter List for PKC-Ca | 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 |
Accession and Pathway Details | |
| Accession Name | Accession No. | Accession Type | Pathway Link | Ajay_Bhalla_
2007_Bistable | 79 | Network |
Shared_Object_Ajay_Bhalla_2007_Bistable, PKC, PLA2,
MAPK, Ras, CaM | This is a model of ERKII signaling which is bistable due to feedback. The feedback occurs through ERKII phosphorylation of phospholipase A2 (PLA2), leading to increased production of arachidonic acid (AA), which activates protein kinase C (PKC) which activates c-Raf which is upstream of ERKII.
The model is a highly simplified variant of more detailed bistable models of MAPK signaling (Bhalla US, Iyengar R. Science. 1999 Jan 15;283(5400):381-7, Ajay SM, Bhalla US. Eur J Neurosci. 2004 Nov;20(10):2671-80) |
PKC-Ca acting as a Molecule in Ajay_Bhalla_2007_Bistable Network
| Name | Accession Name | Pathway Name | Initial Conc.
(uM) | Volume
(fL) | Buffered | | PKC-Ca | Ajay_Bhalla_
2007_Bistable
Accession No. : 79 | PKC
Pathway No. : 364 | 0 | 125.7 | No |
PKC-Ca acting as a Substrate in a reaction in Ajay_Bhalla_2007_Bistable 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. |
| | Name | Accession Name | Pathway Name | Kf | Kb | Kd | tau | Reagents | | 1 | PKC-act-by-DAG | Ajay_Bhalla_
2007_Bistable
Accession No. : 79 | PKC
Pathway No. : 364 | 0.008
(uM^-1 s^-1) | 8.6348
(s^-1) | Kd(bf) = 1079.377(uM) | - | Substrate
DAG
PKC-Ca
Product
PKC-Ca-DAG
| | | Need est of rate. Assume it is fast Obtained from param search kf raised 10 X : see Shinomura et al PNAS 88 5149-5153 1991. kf changed from 3.865e-7 to 2.0e-7 in line with closer analysis of Shinomura data. 26 June 1996: Corrected DAG data: reduce kf 15x from 2e-7 to 1.333e-8 | | 2 | PKC-Ca-to-memb | Ajay_Bhalla_
2007_Bistable
Accession No. : 79 | PKC
Pathway No. : 364 | 1.2705
(s^-1) | 3.5026
(s^-1) | Keq = 2.7569(uM) | 0.21sec | Substrate
PKC-Ca
Product
PKC-Ca-memb*
| | 3 | PKC-act-by-Ca-AA | Ajay_Bhalla_
2007_Bistable
Accession No. : 79 | PKC
Pathway No. : 364 | 0.0012
(uM^-1 s^-1) | 0.1
(s^-1) | Kd(bf) = 83.3326(uM) | - | Substrate
AA
PKC-Ca
Product
PKC-Ca-AA*
| | | Schaechter and Benowitz We have to increase Kf for conc scaling Changed kf to 2e-9 on Sept 19, 94. This gives better match. |
PKC-Ca acting as a Product in a reaction in Ajay_Bhalla_2007_Bistable 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. |
| Name | Accession Name | Pathway Name | Kf | Kb | Kd | tau | Reagents | | PKC-act-by-Ca | Ajay_Bhalla_
2007_Bistable
Accession No. : 79 | PKC
Pathway No. : 364 | 0.6
(uM^-1 s^-1) | 0.5
(s^-1) | Kd(bf) = 0.8333(uM) | - | Substrate
Ca
PKC-cytosolic
Product
PKC-Ca
| | Need est of rate of assoc of Ca and PKC. Assume it is fast The original parameter-searched kf of 439.4 has been scaled by 1/6e8 to account for change of units to n. Kf now 8.16e-7, kb=.6085 Raised kf to 1e-6 to match Ca curve, kb to .5 |
| Database compilation and code copyright (C) 2022, Upinder S. Bhalla and NCBS/TIFR
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