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Literature DB >> 20208153

X-ray structure of the NO-bound Cu(B) in bovine cytochrome c oxidase.

Kazuhiro Ohta¹, Kazumasa Muramoto, Kyoko Shinzawa-Itoh, Eiki Yamashita, Shinya Yoshikawa, Tomitake Tsukihara.

Abstract

The X-ray crystallographic structure of nitric oxide-treated bovine heart cytochrome c oxidase (CcO) in the fully reduced state has been determined at 50 K under light illumination. In this structure, nitric oxide (NO) is bound to the CcO oxygen-reduction site, which consists of haem and a Cu atom (the haem a(3)-Cu(B) site). Electron density for the NO molecule was observed close to Cu(B). The refined structure indicates that NO is bound to Cu(B) in a side-on manner.

Entities: Chemical Gene Species

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Year: 2010 PMID： 20208153 PMCID： PMC2833029 DOI： 10.1107/S1744309109055109

Source DB: PubMed Journal: Acta Crystallogr Sect F Struct Biol Cryst Commun ISSN： 1744-3091

18 in total

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9 in total

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