1i83

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{{STRUCTURE_1i83| PDB=1i83 | SCENE= }}
{{STRUCTURE_1i83| PDB=1i83 | SCENE= }}
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'''BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH N1,N14-BIS((S-METHYL)ISOTHIOUREIDO)TETRADECANE (H4B FREE)'''
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===BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH N1,N14-BIS((S-METHYL)ISOTHIOUREIDO)TETRADECANE (H4B FREE)===
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==Overview==
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Nitric oxide produced by nitric-oxide synthase (NOS) is not only involved in a wide range of physiological functions but also in a variety of pathological conditions. Isoform-selective NOS inhibitors are highly desirable to regulate the NO production of one isoform beneficial to normal physiological functions from the uncontrolled NO production of another isoform that accompanies certain pathological states. Crystal structures of the heme domain of the three NOS isoforms have revealed a very high degree of similarity in the immediate vicinity of the heme active site illustrating the challenge of isoform-selective inhibitor design. Isothioureas are potent NOS inhibitors, and the structures of the endothelial NOS heme domain complexed with isothioureas bearing small S-alkyl substituents have been determined (Li, H., Raman, C.S., Martasek, P., Kral, V., Masters, B.S.S., and Poulos, T.L. (2000) J. Inorg. Biochem. 81, 133--139). In the present communication, the binding mode of larger bisisothioureas complexed to the endothelial NOS heme domain has been determined. These structures afford a structural rationale for the known inhibitory activities. In addition, these structures provide clues on how to exploit the longer inhibitor substituents that extend out of the active site pocket for isoform-selective inhibitor design.
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(as it appears on PubMed at http://www.pubmed.gov), where 11331290 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11331290}}
==About this Structure==
==About this Structure==
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[[Category: Alpha-beta fold]]
[[Category: Alpha-beta fold]]
[[Category: Oxidoreductase]]
[[Category: Oxidoreductase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 10:33:52 2008''

Revision as of 07:33, 1 July 2008

Template:STRUCTURE 1i83

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH N1,N14-BIS((S-METHYL)ISOTHIOUREIDO)TETRADECANE (H4B FREE)

Template:ABSTRACT PUBMED 11331290

About this Structure

1I83 is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.

Reference

Implications for isoform-selective inhibitor design derived from the binding mode of bulky isothioureas to the heme domain of endothelial nitric-oxide synthase., Raman CS, Li H, Martasek P, Babu BR, Griffith OW, Masters BS, Poulos TL, J Biol Chem. 2001 Jul 13;276(28):26486-91. Epub 2001 Apr 30. PMID:11331290

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