FAD and FMN flavoproteins participate in the sodium‐transport respiratory chain NADH:quinone reductase of a marine bacterium, Vibrio alginolyticus

FEBS Letters

Hayashi, Maki¹  Unemoto, Tsutomu¹ 

[1] Research Institute for Chemobiodynamics, Chiba University, 1-8-1 Inohana, Chiba 280, Japan

关键词: Respiratory chain;    NADH:quinone reductase;    FAD;    FMN;    Na+ pump;    (Marine bacterium);   

DOI  :  10.1016/0014-5793(86)80711-6

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The sodium-transport respiratory chain NADH:quinone reductase of a marine bacterium, Vibrio alginolyti-cus, is composed of three protein subunits, α,β and γ. The β-subunit contains FAD as a prosthetic group and corresponds to NADH dehydrogenase, which catalyses the reduction of ubiquinone to ubisemiquinone. In addition to β, subunits α. and γ are essential for the quinone reductase, which catalyses the reduction of ubiquinone to ubiquinol. The α-subunit contains FMN and the reaction catalysed by subunit α is related to the coupling site of the sodium pump in the quinone reductase.

【 授权许可】

Unknown