A putative cytochrome c biogenesis gene in Synechocystis sp. PCC 6803

被引：14

作者：

Hubschmann, T ^{[1
]}

Wilde, A ^{[1
]}

Elanskaya, I ^{[1
]}

Shestakov, SV ^{[1
]}

Borner, T ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV, DEPT GENET, MOSCOW 119899, RUSSIA

来源：

FEBS LETTERS | 1997年 / 408卷 / 02期

关键词：

synechocystis; cyanobacterium; chloroplast; cytochrome c; RIBOSOME-DEFICIENT PLASTIDS; CHLAMYDOMONAS-REINHARDTII; RNA-POLYMERASE; PLANT-TISSUES; BIOSYNTHESIS; BACTERIAL; DNA; EXPRESSION; CLUSTER;

D O I：

10.1016/S0014-5793(97)00421-3

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：

A gene (orf334) with homology to chloroplast ycf5 (ccsA) was isolated from the cyanobacterium Synechocystis PCC 6803. The mRNA level of orf334 decreases in the dark and increases rapidly upon illumination. Transcription is initiated 69 nucleotides upstream of the start site of translation. The deduced amino acid sequence of orf334 has limited identity with bacterial proteins involved in cytochrome c biogenesis. Sequence comparison indicates differing pathways of cytochrome c biogenesis in cyanobacteria/chloroplasts and Gram(-) positive bacteria versus proteobacteria and mitochondria. Insertional inactivation of the orf334 gene gave rise to a heterozygous mutant, i.e. complete absence of the orf334 product seems to be lethal to the cell. (C) 1997 Federation of European Biochemical Societies.

引用

页码：201 / 205

页数：5

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