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Molecule Parameter List for R2C2

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
R2C2 participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000010

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • MAPK_network_
    2003
  • 50Network
    Shared_Object_MAPK_network_2003 PKC PLA2 
    PLCbeta Gq MAPK 
    Ras EGFR Sos 
    PLC_g CaMKII CaM 
    PP1 PP2B PKA 
    AC 
    This is a network model of many pathways present at the neuronal synapse. The network has properties of temporal tuning as well as steady-state computational properties. In its default form the network is bistable.Bhalla US Biophys J. 2004 Aug;87(2):745-53

    R2C2 acting as a Molecule in  
    MAPK_network_2003 Network
    NameAccession NamePathway NameInitial Conc.
    (uM)
    Volume
    (fL)
    Buffered
    R2C2
  • MAPK_network_
    2003

    Accession No. : 50
  • PKA
    Pathway No. : 220
    0.51000No
    This is the R2C2 complex, consisting of 2 catalytic (C) subunits, and the R-dimer. See Taylor et al Ann Rev Biochem 1990 59:971-1005 for a review. The Doskeland and Ogreid review is better for numbers. Amount of PKA is about .5 uM.

    R2C2 acting as a Substrate in a reaction in  
    MAPK_network_2003 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.
    NameAccession NamePathway NameKfKbKdtauReagents
  • cAMP-bind-site-B
    1
  • MAPK_network_
    2003

    Accession No. : 50
  • PKA
    Pathway No. : 220
    54
    (uM^-1 s^-1)
    33
    (s^-1)
    Kd(bf) = 0.6111(uM)-Substrate
    R2C2
    cAMP

    Product
    R2C2-cAMP
    Hasler et al FASEB J 6:2734-2741 1992 say Kd =1e-7M for type II, 5.6e-8 M for type I. Take mean which comes to 2e-13 #/cell Smith et al PNAS USA 78:3 1591-1595 1981 have better data. First kf/kb=2.1e7/M = 3.5e-5 (#/cell). Ogreid and Doskeland Febs Lett 129:2 287-292 1981 have figs suggesting time course of complete assoc is < 1 min.



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