1qwc
From Proteopedia
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'''Rat neuronal nitric oxide synthase oxygenase domain in complex with W1400 inhibitor.''' | '''Rat neuronal nitric oxide synthase oxygenase domain in complex with W1400 inhibitor.''' | ||
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[[Category: Hartmann, E.]] | [[Category: Hartmann, E.]] | ||
[[Category: Schlichting, I.]] | [[Category: Schlichting, I.]] | ||
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Revision as of 03:46, 3 May 2008
Rat neuronal nitric oxide synthase oxygenase domain in complex with W1400 inhibitor.
Overview
The high level of amino acid conservation and structural similarity in the immediate vicinity of the substrate binding sites of the oxygenase domains of the nitric-oxide synthase (NOS) isoforms (eNOSoxy, iNOSoxy, and nNOSoxy) make the interpretation of the structural basis of inhibitor isoform specificity a challenge and provide few clues for the design of new selective compounds. Crystal structures of iNOSoxy and nNOSoxy complexed with the inhibitors W1400 and Nomega-propyl-l-arginine provide a rationale for their isoform specificity. It involves differences outside the immediate active site as well as a conformational flexibility in the active site that allows the adoption of distinct conformations in response to interactions with the inhibitors. This flexibility is determined by isoform-specific residues outside the active site.
About this Structure
1QWC is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Structural basis for the specificity of the nitric-oxide synthase inhibitors W1400 and Nomega-propyl-L-Arg for the inducible and neuronal isoforms., Fedorov R, Hartmann E, Ghosh DK, Schlichting I, J Biol Chem. 2003 Nov 14;278(46):45818-25. Epub 2003 Sep 3. PMID:12954642 Page seeded by OCA on Sat May 3 06:46:36 2008
