1qw6
From Proteopedia
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'''Rat neuronal nitric oxide synthase oxygenase domain in complex with N-omega-propyl-L-Arg.''' | '''Rat neuronal nitric oxide synthase oxygenase domain in complex with N-omega-propyl-L-Arg.''' | ||
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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 N-omega-propyl-L-Arg.
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
1QW6 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 06:46:07 2008
