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Molecule Parameter List for PDE1

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
PDE1 participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1010010

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • AMPAR_traff_
    model0
  • 59Network
    Shared_Object_AMPAR_traff_model0 CaMKII CaM 
    PP1 PP2B PP1_PSD 
    PKA AC AMPAR 
    AMPAR_memb 
    This is model 0 from Hayer and Bhalla, PLoS Comput Biol 2005. It has a bistable model of AMPAR traffick, plus a non-bistable model of CaMKII. This differs from the reference model (model 1) in that model0 lacks degradation and turno ver reactions for AMPAR.

    PDE1 acting as a Molecule in  
    AMPAR_traff_model0 Network
    NameAccession NamePathway NameInitial Conc.
    (uM)
    Volume
    (fL)
    Buffered
    PDE1
  • AMPAR_traff_
    model0

    Accession No. : 59
  • AC
    Pathway No. : 241
    2.59260.09No
    CaM-Dependent PDE. Amount calculated from total rate in brain vs. specific rate.

    PDE1 acting as an Enzyme in  
    AMPAR_traff_model0 Network
    Enzyme Molecule /
    Enzyme Activity
    Accession NamePathway NameKm (uM)kcat (s^-1)RatioEnzyme TypeReagents
    PDE1 /
    PDE1
  • AMPAR_traff_
    model0

    Accession No. : 59
  • AC
    Pathway No. : 241
    39.69991.6674.0012explicit E-S complexSubstrate
    cAMP

    Product
    AMP
    Rate is 1/6 of the CaM stim form. We'll just reduce all lf k1, k2, k3 so that the Vmax goes down 1/6.

    PDE1 acting as a Substrate in a reaction in  
    AMPAR_traff_model0 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
    CaM_bind_PDE1
  • AMPAR_traff_
    model0

    Accession No. : 59
  • AC
    Pathway No. : 241
    719.982
    (uM^-1 s^-1)
    5
    (s^-1)
    Kd(bf) = 0.0069(uM)-Substrate
    CaM-Ca4
    PDE1

    Product
    CaM.PDE1
    For olf epi PDE1, affinity is 7 nM. Assume same for brain. Reaction should be pretty fast. Assume kb = 5/sec. Then kf = 5 / (0.007 * 6e5) = 1.2e-3



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