1ed5
From Proteopedia
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|PDB= 1ed5 |SIZE=350|CAPTION= <scene name='initialview01'>1ed5</scene>, resolution 1.80Å | |PDB= 1ed5 |SIZE=350|CAPTION= <scene name='initialview01'>1ed5</scene>, resolution 1.80Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand= | + | |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=NRG:N-OMEGA-NITRO-L-ARGININE'>NRG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene> |
| - | + | |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> | |
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY=[[8nse|8NSE]], [[1ed4|1ED4]], [[1ed6|1ED6]] | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ed5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ed5 OCA], [http://www.ebi.ac.uk/pdbsum/1ed5 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1ed5 RCSB]</span> | ||
}} | }} | ||
| Line 29: | Line 32: | ||
[[Category: Raman, C S.]] | [[Category: Raman, C S.]] | ||
[[Category: Southan, G J.]] | [[Category: Southan, G J.]] | ||
| - | [[Category: ACT]] | ||
| - | [[Category: CAD]] | ||
| - | [[Category: GOL]] | ||
| - | [[Category: HEM]] | ||
| - | [[Category: NRG]] | ||
| - | [[Category: ZN]] | ||
[[Category: alpha-beta fold]] | [[Category: alpha-beta fold]] | ||
[[Category: heme protein]] | [[Category: heme protein]] | ||
[[Category: nitric oxide synthase]] | [[Category: nitric oxide synthase]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:00:10 2008'' |
Revision as of 17:00, 30 March 2008
| |||||||
| , resolution 1.80Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , , , , , | ||||||
| Activity: | Nitric-oxide synthase, with EC number 1.14.13.39 | ||||||
| Related: | 8NSE, 1ED4, 1ED6
| ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
BOVINE ENDOTHELIAL NITRIC OXIDE SYNTHASE HEME DOMAIN COMPLEXED WITH NNA(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
1ED5 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 Sun Mar 30 20:00:10 2008
