Bifunctional role of the bc1 complex in plants Mitochondrial bc1 complex catalyses both electron transport and protein processing

FEBS Letters

Sjöling, Sara¹  Eriksson, AnnaCarin¹  Glaser, Elzbieta¹ 

[1] Department of Biochemistry, Arrhenius Laboratories for Natural Sciences, Stockholm University, S-106 91 Stockholm, Sweden

关键词: Mitochondrial processing peptidase;    Protein processing;    Protein import;    bc1 complex;    Plant mitochondria;    Organelle biogenesis;   

DOI  :  10.1016/0014-5793(94)00312-2

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Nuclear encoded mitochondrial precursor proteins are cleaved to mature size products by the general mitochondrial processing peptidase (MPP). In contrast to non-plant sources where MPP is a matrix enzyme, the plant mitochondrial MPP is localised in the inner membrane and constitutes an integral part of the bc₁ complex of the respiratory chain. Core proteins of the complex are immunologically related and show high sequence similarity to the MPP subunits from non-plant sources. The bc₁ complex in plants is thus bifunctional, being involved both in respiration and in protein processing.

【 授权许可】

Unknown