Comparative Analysis of Two-component Signal Transduction System in Two Streptomycete Genomes
Comparative Analysis of Two-component Signal Transduction System in Two Streptomycete Genomes作者机构:BioinformationCenterKeyLabofSystemsBiologyShanghaiInstitutesforBiologicalSciencesChineseAcademyofSciencesGraduateSchooloftheChineseAcademyofSciencesShanghai200031China
出 版 物:《Acta Biochimica et Biophysica Sinica》 (生物化学与生物物理学报(英文版))
年 卷 期:2007年第39卷第5期
页 面:317-325页
核心收录:
学科分类:0710[理学-生物学] 1007[医学-药学(可授医学、理学学位)] 100705[医学-微生物与生化药学] 1002[医学-临床医学] 07[理学] 071005[理学-微生物学] 10[医学]
基 金:the Grants form the National Natural Science Foundation of ChinaKey Program of Basic Research of Shanghai[No.06PJ14072] the Major State Basic Research Development Program of China[2004CB720103,2006CB910705,and 2007CB77803]
主 题:Streptomyces two-component system cross-talk phylogenetic analysis
摘 要:Species of the genus Streptomyces are major bacteria responsible for producing most natural antibiotics. Streptomyces coelicolor A3(2) and Streptomyces avermitilis were sequenced in 2002 and 2003, respectively. Two-component signal transduction systems (TCSs), consisting of a histidine sensor kinase (SK) and a cognate response regulator (RR), form the most common mechanism of transmembrane signal transduction in prokaryotes. TCSs in S. coelicolor A3(2) have been analyzed in detail. Here, we identify and classify the SK and RR of S. avermitilis and compare the TCSs with those of S. coelicolor A3(2) by computational approaches. Phylogenetic analysis of the cognate SK-RR pairs of the two species indicated that the cognate SK-RR pairs fall into four classes according to the distribution of their orthologs in other organisms. In addition to the cognate SK-RR pairs, some potential partners of non-cognate SK-RR were found, including those of unpaired SK and orphan RR and the cross-talk between different components in either strain. Our study provides new clues for further exploration of the molecular regulation mechanism of streptomycetes with industrial importance.