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Molecule Parameter List for RGR

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

RGR 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	2	0	0	0	1

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
MAPK-bistability -fig1c	35	Network	Shared_Object_MAPK-bistability-fig1c,  Sos,  PKC,   MAPK,  PLA2,  Ras,   PDGFR
Model for figure 1c in Bhalla US et al. Science (2002) 297(5583):1018-23. The demo for this figure is available here. This synaptic signaling model is without the MKP-1 feedback, so it is bistable and remains so over long periods.

RGR acting as a Molecule in  MAPK-bistability-fig1c Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
RGR	MAPK-bistability -fig1c Accession No. : 35	MAPK Pathway No. : 182	0	1000	No
Shorthand name for Raf.GTP.Ras. This refers to the complex between GTP.Ras and the unphosphorylated Raf. I treat this as having the same enzyme activity as the Raf*.GTP.Ras form.

RGR acting as an Enzyme in  MAPK-bistability-fig1c Network

	Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
1	RGR / RGR.1	MAPK-bistability -fig1c Accession No. : 35	MAPK Pathway No. : 182	0.159091	0.105	4	explicit E-S complex	Substrate MAPKK Product MAPKK-ser
	Kinetics are the same as for the craf-1* activity, ie., k1=5.5e-6, k2=.42, k3 =0.105 These are based on Force et al PNAS USA 91 1270-1274 1994.
2	RGR / RGR.2	MAPK-bistability -fig1c Accession No. : 35	MAPK Pathway No. : 182	0.159091	0.105	4	explicit E-S complex	Substrate MAPKK-ser Product MAPKK*
	Same kinetics as other c-raf activated forms. See Force et al PNAS 91 1270-1274 1994. k1 = 5.5e-6, k2 = .42, k3 = 0.105

RGR acting as a Product in a reaction in  MAPK-bistability-fig1c 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
Ras-act-unphosph -raf	MAPK-bistability -fig1c Accession No. : 35	Shared_Object_ MAPK-bistability -fig1c Pathway No. : 179	6 (uM^-1 s^-1)	1 (s^-1)	Kd(bf) = 0.1667(uM)	-	Substrate GTP-Ras craf-1 Product RGR
Based on rates of Ras-act-craf which has Kf=60, Kb= 0.5. This reaction was introduced to account for the PKC-independent activation of MAPK. This reac should have less affinity but similar tau as compared to the Ras-cat-craf, since the phosphorylated Raf form has a greater effect on MAPK.