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Molecule Parameter List for PLC-Gq

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
PLC-Gq participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000011

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning
  • 78Network
    Shared_Object_Ajay_Bhalla_2004_Feedback_Tuning PKC PLA2 
    PLCbeta Gq MAPK 
    Ras EGFR Sos 
    PLC_g CaMKII CaM 
    PP1 PP2B PKA 
    AC 
    This model is taken from Ajay SM, Bhalla US. Eur J Neurosci. 2004 Nov;20(10):2671-80. This is the feedback model from Figure 8a.

    PLC-Gq acting as a Molecule in  
    Ajay_Bhalla_2004_Feedback_Tuning Network
    NameAccession NamePathway NameInitial Conc.
    (uM)
    Volume
    (fL)
    Buffered
    PLC-Gq
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • PLCbeta
    Pathway No. : 350
    01.5No

    PLC-Gq acting as a Substrate in a reaction in  
    Ajay_Bhalla_2004_Feedback_Tuning 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
    PLC-Gq-bind-Ca
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • PLCbeta
    Pathway No. : 350
    29.9997
    (uM^-1 s^-1)
    1
    (s^-1)
    Kd(bf) = 0.0333(uM)-Substrate
    Ca
    PLC-Gq

    Product
    PLC-Ca-Gq
    this step has a high affinity for Ca, from Smrcka et al. 0.1uM so kf /kb = 1/6e4 = 1.666e-5:1. See the Act-PLC-by-Gq reac. 11 Jun 1996: Raised kf to 5e-5 based on match to conc-eff curves from Smrcka et al.

    PLC-Gq acting as a Product in a reaction in  
    Ajay_Bhalla_2004_Feedback_Tuning 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
    PLC-bind-Gq
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • PLCbeta
    Pathway No. : 350
    2.52
    (uM^-1 s^-1)
    1
    (s^-1)
    Kd(bf) = 0.3968(uM)-Substrate
    G*GTP
    PLC

    Product
    PLC-Gq
    this binding does not produce active PLC. This step was needed to implement the described (Smrcka et al) increase in affinity for Ca by PLC once Gq was bound. The kinetics are the same as the binding step for Ca-PLC to Gq. June 1996: Changed the kf to 4.2e-5 to 4.2e-6 to preserve balance around the reactions.



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