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Molecule Parameter List for nNOS-NM-Arginine

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
nNOS-NM-Arginine 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
NMArginine74Pathway
NMArginine 
This model is taken from the Abu-Soud HM et al. Biochemistry. 1999 Sep 21;38(38):12446-51. This model shows kinetic binding of NMArginine to neuronal nitric oxide synthase.
Model shows the substrate (NM-Arginine) binding to nNOS in a two-step reversible fashion. First there is rapid binding equilibrium between Im-nNOS and NM-Arginine to form an intermediate that contains bound imidazole and NM-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. Rates approximated based on data in Table 2. The rates for first reaction are not exact since only Kd known and appropriate graphs do not exist for matching the kinetic profile.

nNOS-NM-Arginine acting as a Molecule in  
NMArginine Network
NameAccession NamePathway NameInitial Conc.
(uM)
Volume
(fL)
Buffered
nNOS-NM-ArginineNMArginine
Accession No. : 74
NMArginine
Pathway No. : 310
00.0016667No
NM-Arginine bound to neuronal Nitric Oxide Synthase. Abu-Soud HM et al. Biochemistry. 1999 Sep 21;38(38):12446-51.

nNOS-NM-Arginine acting as a Product in a reaction in  
NMArginine 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
  • NMArginine
    Accession No. : 74
    NMArginine
    Pathway No. : 310
    27
    (s^-1)
    0.2
    (uM^-1 s^-1)
    Kd(cb) = 0.0074(uM)-Substrate
  • Im-nNOS-NM-Argin
    ine


    Product
    Imidazole
  • nNOS-NM-Arginine
  • Release of Imidazole from complex ofNM-Arginine and Imidazole bound rat brainneuronal 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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