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Molecule Parameter List for MKP_dash_1

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
MKP_dash_1 participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1020000

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
mRNA synthesis94Network
kinetics compartment_1 compartment_2 
The model consists of three major pathways: Calcium-calmodulin dependent protein kinase IV (CaMKIV), Mitogen-activated protein kinase (MAPK) and Protein Phosphatase 1 (PP1). Each of these converged on CREB activation. We also modeled further interactions with Transducer of regulated CREB activity 1 (TORC1) and the protein kinase A (PKA) pathway.

MKP_dash_1 acting as a Molecule in  
mRNA synthesis Network
NameAccession NamePathway NameInitial Conc.
(uM)
Volume
(fL)
Buffered
MKP_dash_1mRNA synthesis
Accession No. : 94
kinetics
Pathway No. : 1112
0.0151000No
MKP-1 dephosphoryates and inactivates MAPK in vivo: Sun et al Cell 75 487-493 1993. Levels of MKP-1 are regulated, and rise in 1 hour. Kinetics from Charles et al PNAS 90:5292-5296 1993. They refer to Charles et al Oncogene 7 187-190 who show that half-life of MKP1/3CH134 is 40 min. 80% deph of MAPK in 20 min Sep 17 1997: CoInit now 0.4x to 0.0032. See parm searches from jun96 on.

MKP_dash_1 acting as an Enzyme in  
mRNA synthesis Network
 Enzyme Molecule /
Enzyme Activity
Accession NamePathway NameKm (uM)kcat (s^-1)RatioEnzyme TypeReagents
1MKP_dash_1 /
  • MKP1_dash_tyr_
    dash_deph
  • mRNA synthesis
    Accession No. : 94
    kinetics
    Pathway No. : 1112
    0.133344explicit E-S complexSubstrate
    MAPK_dash_tyr

    Product
    MAPK
        The original kinetics have been modified to obey the k2 = 4 * k3 rule, while keeping kcat and Km fixed. As noted in the NOTES, the only constraining data point is the time course of MAPK dephosphorylation, which this model satisfies. It would be nice to have more accurate estimates of rate consts and MKP-1 levels from the literature. Effective Km : 67 nM kcat = 1.43 umol/min/mg
    2MKP_dash_1 /
  • MKP1_dash_thr_
    dash_deph
  • mRNA synthesis
    Accession No. : 94
    kinetics
    Pathway No. : 1112
    0.133344explicit E-S complexSubstrate
    MAPK_star

    Product
    MAPK_dash_tyr
        See MKP1-tyr-deph



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