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Molecule Parameter List for Imidazole

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
Imidazole participated asMoleculeSum total ofEnzymeSubstrate of an enzymeProduct of an enzymeSubstrate in ReactionProduct in Reaction
No. of occurrences1000001

Accession and Pathway Details
Accession NameAccession No.Accession TypePathway Link
L-Arginine72Pathway
L-Arginine 
This model was taken from the Abu-Soud HM et al. Biochemistry. 1999 Sep 21;38(38):12446-51. This model shows kinetic binding of L-Arginine to neuronal nitric oxide synthase.
Model shows the substrate (L-Arginine) binding to nNOS in a two-step reversible fashion. First there is rapid binding equilibrium between Im-nNOS and L-Arginine to form an intermediate that contains bound imidazole and L-Arginine. This is followed by a slower conformational change in the Im-enzyme-substrate complex that is associated with release of bound imidazole and generation of a modified enzyme-substrate complex which is detected due to spectral change. Replicates Figure 4 (right panel).

Imidazole acting as a Molecule in  
L-Arginine Network
NameAccession NamePathway NameInitial Conc.
(uM)
Volume
(fL)
Buffered
ImidazoleL-Arginine
Accession No. : 72
L-Arginine
Pathway No. : 308
00.0016667No
Imidazole released from the neuronal Nitric Oxide Synthase complexed to L-Arginine. Abu-Soud HM et al. Biochemistry. 1999 Sep 21;38(38):12446-51.

Imidazole acting as a Product in a reaction in  
L-Arginine 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
  • Imidazole_
    release
  • L-Arginine
    Accession No. : 72
    L-Arginine
    Pathway No. : 308
    81
    (s^-1)
    0.45
    (uM^-1 s^-1)
    Kd(cb) = 0.0056(uM)-Substrate
  • Im-nNOS-L-Argini
    ne


    Product
    Imidazole
    nNOS-L-Arginine
  • Release of Imidazole from complex of L-Arginine and Imidazole bound rat brain neuronal Nitric Oxide Synthase. Abu-Soud HM et al. Biochemistry. 1999 Sep 21;38(38):12446-51.



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