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Molecule Parameter List for MAPK*

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

MAPK* 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	1	1	0	0

Accession and Pathway Details

Accession Name	Accession No.	Accession Type	Pathway Link
EGFR_MAPK	58	Network	Shared_Object_EGFR_MAPK,  MAPK,  Ras,   EGFR,  Sos
Model of MAPK activation by EGFR in the synapse. Demonstration programs using this model are available here. Primary citation:Bhalla US. Biophys J. (2004) 87(2):745-53.

MAPK* acting as a Molecule in  EGFR_MAPK Network

Name	Accession Name	Pathway Name	Initial Conc. (uM)	Volume (fL)	Buffered
MAPK*	EGFR_MAPK Accession No. : 58	Shared_Object_ EGFR_MAPK Pathway No. : 229	0	1000	No

MAPK* acting as an Enzyme in  EGFR_MAPK Network

	Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
1	MAPK* / MAPK*-feedback	EGFR_MAPK Accession No. : 58	Shared_Object_ EGFR_MAPK Pathway No. : 229	25.641	10	4	explicit E-S complex	Substrate craf-1* Product craf-1**
	Ueki et al JBC 269(22):15756-15761 show the presence of this step, but not the rate consts, which are derived from Sanghera et al JBC 265(1):52-57, 1990, see the deriv in the MAPK* notes.
2	MAPK* / phosph_Sos	EGFR_MAPK Accession No. : 58	Shared_Object_ EGFR_MAPK Pathway No. : 229	2.5641	10	4	explicit E-S complex	Substrate Sos Product Sos*
	See Porfiri and McCormick JBC 271:10 pp5871 1996 for the existence of this step. We'll take the rates from the ones used for the phosph of Raf by MAPK. Sep 17 1997: The transient activation curve matches better with k1 up by 10 x.

MAPK* acting as a Substrate for an Enzyme in  EGFR_MAPK Network

Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
MKP-1  / MKP1-thr-deph	EGFR_MAPK Accession No. : 58	Shared_Object_ EGFR_MAPK Pathway No. : 229	0.0666667	1	4	explicit E-S complex	Substrate MAPK* Product MAPK-tyr
See MKP1-tyr-deph

MAPK* acting as a Product of an Enzyme in  EGFR_MAPK Network

Enzyme Molecule / Enzyme Activity	Accession Name	Pathway Name	Km (uM)	kcat (s^-1)	Ratio	Enzyme Type	Reagents
MAPKK*  / MAPKKthr	EGFR_MAPK Accession No. : 58	MAPK Pathway No. : 230	0.0462963	0.15	4	explicit E-S complex	Substrate MAPK-tyr Product MAPK*
Rate consts same as for MAPKKtyr.