9nse

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[[Image:9nse.jpg|left|200px]]
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{{Seed}}
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{{STRUCTURE_9nse| PDB=9nse | SCENE= }}
{{STRUCTURE_9nse| PDB=9nse | SCENE= }}
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'''BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE, ETHYL-ISOSELENOUREA COMPLEX'''
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===BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE, ETHYL-ISOSELENOUREA COMPLEX===
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==Overview==
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Analyzing the active site topology and plasticity of nitric oxide synthase (NOS) and understanding enzyme-drug interactions are crucial for the development of potent, isoform-selective NOS inhibitors. A small hydrophobic pocket in the active site is identified in the bovine eNOS heme domain structures complexed with potent isothiourea inhibitors: seleno analogue of S-ethyl-isothiourea, S-isopropyl-isothiourea, and 2-aminothiazoline, respectively. These structures reveal the importance of nonpolar van der Waals contacts in addition to the well-known hydrogen bonding interactions between inhibitor and enzyme. The scaffold of a potent NOS inhibitor should be capable of donating hydrogen bonds to as well as making nonpolar contacts with amino acids in the NOS active site.
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(as it appears on PubMed at http://www.pubmed.gov), where 11051558 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11051558}}
==About this Structure==
==About this Structure==
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[[Category: Nitric oxide synthase]]
[[Category: Nitric oxide synthase]]
[[Category: Tetrahydrobiopterin]]
[[Category: Tetrahydrobiopterin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 22:54:50 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri Jul 11 12:56:41 2008''

Revision as of 09:56, 11 July 2008

Image:9nse.png

Template:STRUCTURE 9nse

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE, ETHYL-ISOSELENOUREA COMPLEX

Template:ABSTRACT PUBMED 11051558

About this Structure

9NSE is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.

Reference

Mapping the active site polarity in structures of endothelial nitric oxide synthase heme domain complexed with isothioureas., Li H, Raman CS, Martasek P, Kral V, Masters BS, Poulos TL, J Inorg Biochem. 2000 Aug 31;81(3):133-9. PMID:11051558

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