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Molecule Parameter List for PKC-active

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
PKC-active participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1160000

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.

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

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 01.5No

    PKC-active acting as a Summed Molecule in  
    Ajay_Bhalla_2004_Feedback_Tuning Network
    Accession NamePathway NameTargetInput
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • PKC-activePKC-DAG-AA*
    PKC-Ca-memb*
    PKC-Ca-AA*
    PKC-DAG-memb*
    PKC-basal*
    PKC-AA*

    PKC-active acting as an Enzyme in  
    Ajay_Bhalla_2004_Feedback_Tuning Network
     Enzyme Molecule /
    Enzyme Activity
    Accession NamePathway NameKm (uM)kcat (s^-1)RatioEnzyme TypeReagents
    1PKC-active /
    PKC-act-raf
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 66.667344explicit E-S complexSubstrate
    craf-1

    Product
    craf-1*
        Rate consts from Chen et al Biochem 32, 1032 (1993) k3 = k2 = 4 k1 = 9e-5 recalculated gives 1.666e-5, which is not very different. Looks like k3 is rate-limiting in this case: there is a huge amount of craf locked up in the enz complex. Let us assume a 10x higher Km, ie, lower affinity. k1 drops by 10x. Also changed k2 to 4x k3. Lowerd k1 to 1e-6 to balance 10X DAG sensitivity of PKC
    2PKC-active /
    PKC-inact-GAP
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 3.3333244explicit E-S complexSubstrate
    GAP

    Product
    GAP*
        Rate consts copied from PCK-act-raf This reaction inactivates GAP. The idea is from the Boguski and McCormick review.
    3PKC-active /
    PKC-act-GEF
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 3.3333244explicit E-S complexSubstrate
    inact-GEF

    Product
    GEF*
        Rate consts from PKC-act-raf. This reaction activates GEF. It can lead to at least 2X stim of ras, and a 2X stim of MAPK over and above that obtained via direct phosph of c-raf. Note that it is a push-pull reaction, and there is also a contribution through the phosphorylation and inactivation of GAPs. The original PKC-act-raf rate consts are too fast. We lower K1 by 10 X
    4PKC-active /
  • PKC-phosph-neuro
    granin
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 28.62830.584.03448explicit E-S complexSubstrate
    neurogranin

    Product
    neurogranin*
        Rates from Huang et al ABB 305:2 570-580 1993
    5PKC-active /
  • PKC-phosph-ng-Ca
    M
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 28.59480.354explicit E-S complexSubstrate
    neurogranin-CaM

    Product
    CaM
    neurogranin*
        Rates are 60% those of PKC-phosph-neurogranin. See Huang et al ABB 305:2 570-580 1993
    6PKC-active /
    phosph-AC2
  • Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Accession No. : 78
  • Shared_Object_
    Ajay_Bhalla_
    2004_Feedback_
    Tuning

    Pathway No. : 347
  • 33.333244explicit E-S complexSubstrate
    AC2

    Product
    AC2*
        Phorbol esters have little effect on AC1 or on the Gs-stimulation of AC2. So in this model we are only dealing with the increase in basal activation of AC2 induced by PKC k1 = 1.66e-6 k2 = 16 k3 =4



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