Purification and spectral characterization of a b‐type cytochrome from the plasma membrane of the archaebacterium Sulfolobus acidocaldarius

FEBS Letters

Schäfer, Günter¹  Becker, Marita¹ 

[1] Institute of Biochemistry, Medical University of Lübeck, Lübeck, Germany

关键词: Cytochrome-b;    Archaebacteria;    Sulfolobus;    Electron transport;    Respiration;   

DOI  :  10.1016/0014-5793(91)81314-X

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

For the first time the purification of a heme-b containing cytochrome from the plasma membrane of an extremely thermoacidophilic archaebacterium is described. The detergent solubilized 30 kDa polypeptide contains two heme-b centers and one copper ion. According to its low temperature spectra and CO-binding properties, it is likely to function as a cytochrome-o like terminal oxidase in the membrane. The purified cytochrome does not retain catalytic activity, however.

【 授权许可】

Unknown