Cytochrome c‐550 mediates electron transfer from inducible periplasmic c‐type cytochromes to the cytoplasmic membrane of Paracoccus denitrificans

FEBS Letters

Kumar, M.Arun¹  Davidson, Victor L.¹ 

[1] Department of Biochemistry, The University of Mississippi Medical Center, Jackson, MS 39216-4505, USA

关键词: Cytochrome c;    Electron transfer;    Methylotrophic bacteria;    (Paracoccus denitrificans);   

DOI  :  10.1016/0014-5793(89)80235-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Electron transfer from periplasmic cytochromes c to the membrane-bound respiratory chain has been studied with the isolated cytochromes and membrane preparations from Paracoccus denitrificans. When reduced cytochromes were incubated with spheroplasts only the constitutive cytochrome c-550 was rapidly oxidized. The inducible cytochromes c-551i and c-553i were not oxidized at appreciable rates. Cytochrome c-550 was able to mediate the transfer of electrons from either cytochrome c-551i or cytochrome c-553i to the membrane preparation.

【 授权许可】

Unknown