Regulation of mitochondrial nitric-oxide synthase

被引：0

作者：

Haynes, V ^{[1
]}

Elfering, SL ^{[1
]}

Traaseth, N ^{[1
]}

Giulivi, C ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Duluth, MN 55812 USA

来源：

SFRR: PROCEEDINGS OF THE XII BIENNIAL MEETING OF THE SOCIETY FOR FREE RADICAL RESEARCH INTERNATIONAL | 2004年

关键词：

D O I：

暂无

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Nitric oxide is generated in vivo by nitric-oxide synthase (NOS) during the conversion of L-Arg to citrulline. Using a variety of biological systems and approaches emerging evidence has been accumulated for the occurrence of a mitochondrial NOS (mtNOS), identified as the alpha isoform of neuronal or nNOS-1. Under physiological conditions, the production of nitric oxide by mitochondria has an important implication for the maintenance of the cellular metabolism, i.e. modulates the oxygen consumption of the organelles through the competitive (with oxygen) and reversible inhibition of cytochrome c oxidase. The transient inhibition suits the continuously changing energy and oxygen requirements of the tissue; it is a short-term regulation with profound pathophysiological consequences. This study describes and discusses the calcium regulation and the potential role of posttranslational modifications on mtNOS' activity.

引用

页码：85 / 93

页数：9

共 54 条

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