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Molecule Parameter List for GEF*

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

GEF* participated as	Molecule	Sum total of	Enzyme	Substrate of an enzyme	Product of an enzyme	Substrate in Reaction	Product in Reaction
No. of occurrences	1	0	1	0	1	1	0

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
MAPK_MKP1_ oscillation	9	Network	Shared_Object_MAPK_MKP1_oscillation, PKC, MAPK, PLA2, Ras
This model relates to figure 5 in Bhalla US, Iyengar R. Chaos (2001) 11(1):221-226. It includes the model used for figures 2-4 and also has MKP-1 induction by MAPK activity in the synapse. PP2A is set to 0.16 uM and MKP synthesis is varied from 5x to 40 x basal to get a range of interesting behaviours.

GEF* acting as a Molecule in MAPK_MKP1_oscillation Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
GEF*	MAPK_MKP1_ oscillation Accession No. : 9	Ras Pathway No. : 63	0	1000	No
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.

GEF* acting as an Enzyme in MAPK_MKP1_oscillation Network

Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
GEF* / GEF*-act-ras	MAPK_MKP1_ oscillation Accession No. : 9	Ras Pathway No. : 63	0.505051	0.02	4	explicit E-S complex	Substrate GDP-Ras Product GTP-Ras
Kinetics same as GEF-bg-act-ras

GEF* acting as a Product of an Enzyme in MAPK_MKP1_oscillation Network

Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
PKC-active / PKC-act-GEF	MAPK_MKP1_ oscillation Accession No. : 9	Shared_Object_ MAPK_MKP1_ oscillation Pathway No. : 59	3.33333	4	4	explicit E-S complex	Substrate inact-GEF Product GEF*
Rate consts from PKC-act-raf. 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 eff through phosph and inact of GAPs.

GEF* acting as a Substrate in a reaction in MAPK_MKP1_oscillation 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
dephosph-GEF	MAPK_MKP1_ oscillation Accession No. : 9	Ras Pathway No. : 63	1 (s^-1)	0 (s^-1)	-	-	Substrate GEF* Product inact-GEF

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