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Molecule Parameter List for Ca

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
Ca participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000030

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
  • MAPK_MKP1_
    oscillation
    		• 9Network
    Shared_Object_MAPK_MKP1_oscillation,  PKC,  MAPK,  
    PLA2,  Ras 
    This model relates to figure 5 in Bhalla US, Iyengar R. Chaos (2001) 11(1):221-226. It includes the model used for figures 2-4 and also has MKP-1 induction by MAPK activity in the synapse. PP2A is set to 0.16 uM and MKP synthesis is varied from 5x to 40 x basal to get a range of interesting behaviours.

    Ca acting as a Molecule in      MAPK_MKP1_oscillation Network
    NameAccession NamePathway NameInitial Conc.
    (uM)    		Volume
    (fL)    		Buffered
    Ca
  • MAPK_MKP1_
    oscillation
    Accession No. : 9
  • Shared_Object_
    MAPK_MKP1_
    oscillation
    Pathway No. : 59
    		• 0.081000Yes

    Ca acting as a Substrate in a reaction in      MAPK_MKP1_oscillation 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
    1PKC-act-by-Ca
  • MAPK_MKP1_
    oscillation
    Accession No. : 9
    		• PKC
    Pathway No. : 60    		0.6
    (uM^-1 s^-1)    		0.5
    (s^-1)    		Kd(bf) = 0.8333(uM)-Substrate
    Ca
    PKC-cytosolic

    Product
    PKC-Ca
      Need est of rate of assoc of Ca and PKC. Assume it is fast The original parameter-searched kf of 439.4 has been scaled by 1/6e8 to account for change of units to n. Kf now 8.16e-7, kb=.6085 Raised kf to 1e-6 to match Ca curve, kb to .5
    2PLA2-Ca-act
  • MAPK_MKP1_
    oscillation
    Accession No. : 9
    		• PLA2
    Pathway No. : 62    		1
    (uM^-1 s^-1)    		0.1
    (s^-1)    		Kd(bf) = 0.1(uM)-Substrate
    Ca
    PLA2-cytosolic

    Product
    PLA2-Ca*
      Leslie and Channon BBA 1045 (1990) 261-270 fig6 pp267.
    3PLA2*-Ca-act
  • MAPK_MKP1_
    oscillation
    Accession No. : 9
    		• PLA2
    Pathway No. : 62    		6
    (uM^-1 s^-1)    		0.1
    (s^-1)    		Kd(bf) = 0.0167(uM)-Substrate
    Ca
    PLA2*

    Product
    PLA2*-Ca
      To start off, same kinetics as the PLA2-Ca-act direct pathway. Oops ! Missed out the Ca input to this pathway first time round. Let's raise the forward rate about 3x to 5e-6. This will let us reduce the rather high rates we have used for the kenz on PLA2*-Ca. In fact, it may be that the rates are not that different, just that this pathway for getting the PLA2 to the memb is more efficien....


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