Comparative analysis of rwo-component signal transduction system in two streptomycete genomes

Wu Wei, Weihua Wang, Zhiwei Cao, Hong Yu, Xiaojing Wang, Jing Zhao, Hao Tan, Hao Xu, Weihong Jiang, Yixue Li

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)317-325
Number of pages9
JournalActa Biochimica et Biophysica Sinica
Issue number5
StatePublished - May 2007
Externally publishedYes


  • Cross-talk
  • Phylogenetic analysis
  • Streptomyces
  • Two-component system

ASJC Scopus subject areas

  • General Medicine


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