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Comparative analysis of two-component signal transduction systems in six Synechococcus strains: Two-component signal transduction systems in Synechococcus

文献类型: 会议论文

第一作者: Xiaowen Zhang

作者: Xiaowen Zhang 1 ; Naihao Ye 2 ; Xiangyu Guan 3 ; Chengwei Liang 4 ; Song Qin 5 ;

作者机构: 1.Institute of Oceanology, Chinese Academy of Sciences

2.Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences

3.China University of Geosciences

4.Biology Department, Qingdao University of Science & Technology

5.ExperimentalMarine Biological Laboratory, Institute of Oceanology, Chinese Academy of Sciences

关键词: Synechococcus;Two-component signal transduction;Comparative analysis;Phylogeny

会议名称: iCBBE 2009

主办单位:

页码: 692-695

摘要: Cyanobacteria are photoautotrophic prokaryotes able to grow in a wide range of ecological environments and their signal transduction systems play important roles for environmental adaptation. Two-component signal transduction (TCST) systems show important roles in prokaryotes. Sequencing information of cyanobacterial genomes offers a unique opportunity to conduct a comprehensive comparative analysis of this signal transduction system. In this study, we extracted information from six species of sequenced Synechococcus and investigated the diversity, gene structure and conservation and phylogeny of the TCST components. A total of 184 predicted proteins were identified in the putative histidine kinases and response regulators. Twelve types additional domains were identified, some of which are reported to participate in the recognition of signals or substrates. The number and structure character of TCST components in different Synechococcus strains are the results of the ecophysiology and physiological properties of the organism. Histidine kinase (HK) and Response Regulators (RR) have different evolutionary history and gene gain-and-loss play important roles during the evolution along with domain shuffling and insertion.

分类号: G202-53

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