1d0c

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[[Image:1d0c.jpg|left|200px]]
[[Image:1d0c.jpg|left|200px]]
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{{Structure
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<!--
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|PDB= 1d0c |SIZE=350|CAPTION= <scene name='initialview01'>1d0c</scene>, resolution 1.65&Aring;
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The line below this paragraph, containing "STRUCTURE_1d0c", creates the "Structure Box" on the page.
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|SITE=
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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|LIGAND= <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CAD:CACODYLIC+ACID'>CAD</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=HEM:PROTOPORPHYRIN+IX+CONTAINING+FE'>HEM</scene>, <scene name='pdbligand=INE:3-BROMO-7-NITROINDAZOLE'>INE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene>
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Nitric-oxide_synthase Nitric-oxide synthase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.14.13.39 1.14.13.39] </span>
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or leave the SCENE parameter empty for the default display.
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|GENE=
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|DOMAIN=
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{{STRUCTURE_1d0c| PDB=1d0c | SCENE= }}
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|RELATEDENTRY=[[1nse|1NSE]], [[1d0c|1D0C]], [[1d0o|1D0O]], [[1d0p|1D0P]], [[1d1v|1D1V]], [[1d1w|1D1W]], [[1d1x|1D1X]], [[1d1y|1D1Y]]
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1d0c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d0c OCA], [http://www.ebi.ac.uk/pdbsum/1d0c PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1d0c RCSB]</span>
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}}
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'''BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH 3-BROMO-7-NITROINDAZOLE (H4B FREE)'''
'''BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH 3-BROMO-7-NITROINDAZOLE (H4B FREE)'''
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[[Category: Raman, C S.]]
[[Category: Raman, C S.]]
[[Category: Southan, G J.]]
[[Category: Southan, G J.]]
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[[Category: alpha-beta fold]]
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[[Category: Alpha-beta fold]]
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[[Category: oxidoreductase]]
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[[Category: Oxidoreductase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:18:13 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 19:32:01 2008''
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Revision as of 10:18, 2 May 2008

Image:1d0c.jpg

Template:STRUCTURE 1d0c

BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH 3-BROMO-7-NITROINDAZOLE (H4B FREE)


Overview

Nitric oxide is generated under normal and pathophysiological conditions by three distinct isoforms of nitric oxide synthase (NOS). A small-molecule inhibitor of NOS (3-Br-7-nitroindazole, 7-NIBr) is profoundly neuroprotective in mouse models of stroke and Parkinson's disease. We report the crystal structure of the catalytic heme domain of endothelial NOS complexed with 7-NIBr at 1.65 A resolution. Critical to the binding of 7-NIBr at the substrate site is the adoption by eNOS of an altered conformation, in which a key glutamate residue swings out toward one of the heme propionate groups. Perturbation of the heme propionate ensues and eliminates the cofactor tetrahydrobiopterin-heme interaction. We also present three crystal structures that reveal how alterations at the substrate site facilitate 7-NIBr and structurally dissimilar ligands to occupy the cofactor site.

About this Structure

1D0C is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.

Reference

Crystal structure of nitric oxide synthase bound to nitro indazole reveals a novel inactivation mechanism., Raman CS, Li H, Martasek P, Southan G, Masters BS, Poulos TL, Biochemistry. 2001 Nov 13;40(45):13448-55. PMID:11695891 Page seeded by OCA on Fri May 2 13:18:13 2008

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