A specific c-type cytochrome maturation system is required for oxygenic photosynthesis

被引：56

作者：

Kuras, Richard ^{[1
]}

Saint-Marcoux, Denis ^{[1
]}

Wollman, Francis-Andre ^{[1
]}

de Vitry, Catherine ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, Inst Biol Physicochim, UMR 7141, F-75005 Paris, France

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2007年 / 104卷 / 23期

关键词：

biogenesis; heme; system IV; chloroplast; Chlamydomonas;

D O I：

10.1073/pnas.0702340104

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Oxygenic photosynthesis is an important bioenergetic process that maintains the Earth's atmosphere and allows carbon fixation. A critical enzyme in this process, the cytochrome b(6)f complex, differs from other protein complexes of the same family by an unusual covalently attached cofactor chemically defined as a c' heme. We have identified a set of pioneer proteins that carry the biogenesis of this c' heme and started their characterization. They are encoded by the genomes of all organisms performing oxygenic photosynthesis, whatever their phylogenetic distances. These proteins are thus among the few that distinguish photosynthetic cells evolving oxygen from other types of living cells.

引用

页码：9906 / 9910

页数：5

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