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Molecule Parameter List for MAPKK-ser

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

MAPKK-ser 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	0	3	3	0	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.

MAPKK-ser acting as a Molecule in  MAPK_MKP1_oscillation Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
MAPKK-ser	MAPK_MKP1_ oscillation Accession No. : 9	MAPK Pathway No. : 61	0	1000	No
Intermediately phophorylated, assumed inactive, form of MAPKK

MAPKK-ser acting as a Substrate for an Enzyme in  MAPK_MKP1_oscillation Network

	Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
1	Raf-GTP-Ras*  / Raf-GTP-Ras*.2	MAPK_MKP1_ oscillation Accession No. : 9	MAPK Pathway No. : 61	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 = 1.1e-6, k2 = .42, k3 = 1.05 raise k1 to 5.5e-6
2	RGR  / RGR.2	MAPK_MKP1_ oscillation Accession No. : 9	MAPK Pathway No. : 61	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 = 1.1e-6, k2 = .42, k3 = 1.05 raise k1 to 5.5e-6
3	PPhosphatase2A  / MAPKK-deph-ser	MAPK_MKP1_ oscillation Accession No. : 9	Shared_Object_ MAPK_MKP1_ oscillation Pathway No. : 59	15.6566	6	4.16667	explicit E-S complex	Substrate MAPKK-ser Product MAPKK

MAPKK-ser 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
1	Raf-GTP-Ras*  / Raf-GTP-Ras*.1	MAPK_MKP1_ oscillation Accession No. : 9	MAPK Pathway No. : 61	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=1.1e-6, k2=.42, k3 =0.105 These are based on Force et al PNAS USA 91 1270-1274 1994. These parms cannot reach the observed 4X stim of MAPK. So lets increase the affinity, ie, raise k1 10X to 1.1e-5 Lets take it back down to where it was. Back up to 5X: 5.5e-6
2	RGR  / RGR.1	MAPK_MKP1_ oscillation Accession No. : 9	MAPK Pathway No. : 61	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=1.1e-6, k2=.42, k3 =0.105 These are based on Force et al PNAS USA 91 1270-1274 1994. These parms cannot reach the observed 4X stim of MAPK. So lets increase the affinity, ie, raise k1 10X to 1.1e-5 Lets take it back down to where it was. Back up to 5X: 5.5e-6
3	PPhosphatase2A  / MAPKK-deph	MAPK_MKP1_ oscillation Accession No. : 9	Shared_Object_ MAPK_MKP1_ oscillation Pathway No. : 59	15.6566	6	4.16667	explicit E-S complex	Substrate MAPKK* Product MAPKK-ser
	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.