Protein import into cyanelles

被引：53

作者：

Steiner, JM

Löffelhardt, W

机构：

[1] Univ Vienna, Inst Biochem & Mol Zellbiol, A-1030 Vienna, Austria

[2] Ludwig Boltzmann Forschungsstelle Biochem, A-1030 Vienna, Austria

来源：

TRENDS IN PLANT SCIENCE | 2002年 / 7卷 / 02期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1016/S1360-1385(01)02179-3

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

'Cyanelles' are peptidoglycan-armored plastids of glaucocystophyte algae with close morphological and biochemical resemblance to endosymbiotic cyanobacteria. Genome sequencing and phylogenetic analysis have placed cyanelles on the earliest branch of phototrophic eukaryotes after the singular primary endosymbiotic event, the closest relatives to cyanobacteria among extant plastids. This model is supported by similar mechanisms for the targeting of nucleus-encoded cyanelle and chloroplast precursor proteins whose genes were transferred to the nucleus after the endosymbiotic event. As in chloroplasts, a prokaryote-type Sec preprotein translocase is shown to operate in cyanelle thylakoid membranes.

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页码：72 / 77

页数：6

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