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

FEBS Letters
T HubschmannT Börner

Abstract

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.

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Citations

May 16, 2002·Molecular Microbiology·Annegret WildeThomas Börner
Mar 30, 2001·European Journal of Biochemistry·T HübschmannT Lamparter
Nov 13, 2002·The Journal of Biological Chemistry·Patrice P HamelSabeeha Merchant
Oct 1, 2011·The FEBS Journal·Jörg Simon, Lars Hederstedt
Jun 9, 2000·Molecular Microbiology·N E Le BrunL Hederstedt
Aug 18, 2000·Biochimie·S S NakamotoS Merchant

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