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Molecule Parameter List for CycB_dimer

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
CycB_dimer participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1001001

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • Mammalian_cell_
    cycle
  • 85Network
    Growth CELLDIV Rb_grp 
    IE_GRP CycB_Grp Cdc20_Grp 
    Cdh1_grp E2F CycA_Grp 
    CycE_grp Early_Response_Genes Delayed_Response_Genes 
    CycD_Grp 
    This is a fairly complete mass-action reimplementation of the Novak and Tyson mammalian cell cycle model. It is inexact on two counts. First, it replaces many rather abstracted equations with mass action and Michaelis-Menten forms of enzymes. Second, it does not handle the halving of cellular volume at the division point. Within these limitations, the model does most of what the original paper shows including oscillation of the relevant molecules.

    CycB_dimer acting as a Molecule in  
    Mammalian_cell_cycle Network
    NameAccession NamePathway NameInitial Conc.
    (uM)
    Volume
    (fL)
    Buffered
    CycB_dimer
  • Mammalian_cell_
    cycle

    Accession No. : 85
  • CycB_Grp
    Pathway No. : 1073
    0200No

    CycB_dimer acting as a Substrate for an Enzyme in  
    Mammalian_cell_cycle Network
    Enzyme Molecule /
    Enzyme Activity
    Accession NamePathway NameKm (uM)kcat (s^-1)RatioEnzyme TypeReagents
    CycB_synth  /
    k1
  • Mammalian_cell_
    cycle

    Accession No. : 85
  • CycB_Grp
    Pathway No. : 1073
    0.010.64explicit E-S complexSubstrate
    CycB_dimer

    Product
    CycB
    k1 = 0.6. J1 = 0.1 rate = k1([CycB]/J1)^2 / (1 + ([cycB]/J1)^2 ) 2nd order term comes from dimerization, assume rate = k1 * dimer. Doing our usual assumption of AA = Km = 1, we get kcat = 2 * k1 = 1.2 7 April. Revisit this. Multiply expression above and below by J1^2. Then we have standard MM form, with k1 = kcat, and J1^2 = Km. 19 Apr 2005. Altered layout so that dimer form is in substrate, which it should have been all along.

    CycB_dimer acting as a Product in a reaction in  
    Mammalian_cell_cycle 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
    dimerize
  • Mammalian_cell_
    cycle

    Accession No. : 85
  • CycB_Grp
    Pathway No. : 1073
    10
    (uM^-1 s^-1)
    10
    (s^-1)
    Keq = 1(uM)-Substrate
    CycB_dup
    CycB_dup

    Product
    CycB_dimer



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