Molecular evolution of sensory domains in cyanobacterial chemoreceptors

被引：22

作者：

Wuichet, K ^{[1
]}

Zhulin, IB ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Biol, Atlanta, GA 30332 USA

来源：

TRENDS IN MICROBIOLOGY | 2003年 / 11卷 / 05期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0966-842X(03)00073-8

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：

Components of the chemotaxis system encoded in multiple heomologous operons were identified in five cyanobacterial genomes. Analysis of phylogenetic profiles, genomic context, domain architectures and sequence identity reveal that sensory modules of chemoreceptors that detect environmental cues are the subject of frequent domain birth and death events and have accelerated rates of sequence evolution. This fact could explain a remarkable diversity of the sensing repertoire of chemotaxis receptors in microorganisms.

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收藏

页码：200 / 203

页数：4

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