A PLANT MITOCHONDRIAL GENE ENCODES A PROTEIN INVOLVED IN CYTOCHROME-C BIOGENESIS

被引:51
作者
SCHUSTER, W
COMBETTES, B
FLIEGER, K
BRENNICKE, A
机构
[1] Institut für Genbiologische Forschung, Berlin 33, W-1000
来源
MOLECULAR & GENERAL GENETICS | 1993年 / 239卷 / 1-2期
关键词
PLANT MITOCHONDRIA; CYTOCHROME C ASSEMBLY; CHLOROPLASTS; CCL1;
D O I
10.1007/BF00281600
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
Analysis of a transcribed region in the mitochondrial genome of Oenothera revealed an open reading frame (ORF) of 577 codons (orf577) that is also conserved in carrot, here encoding a protein of 579 amino acids (orf579). RNA editing alters the mRNA sequence of orf577 in Oenothera with 46 C to U transitions, many of which improve sequence similarity with the homologous Marchantia gene orf509. The deduced polypeptides show significant similarity with the ccl1-encoded protein involved in cytochrome c biogenesis in the photosynthetic bacterium Rhodobacter capsulatus. A highly conserved domain is also found in plastid ORFs, suggesting that these bacterial, chloroplast and mitochondrial genes encode polypeptides with analogous functions in assembly and maturation of cytochromes c.
引用
收藏
页码:49 / 57
页数:9
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