Localization of a new promoter, P5, in the sigA operon of Bacillus subtilis and its regulation in some spo mutant strains

F. X. Qi, Xiaosong He, R. H. Doi

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

The sigA operon of Bacillus subtilis is transcribed from at least two SigA and two SigH promoters. Primer extension and promoter probe analyses have localized a fifth promoter, P5, that is active only at later sporulation stages (T3 to T5). Mutations in the genes for the sigma factors SigG, SigK, SigH, and SigE do not block transcription from P5. The expression from P5 is blocked or severely reduced in spo0A, spo0B, spo0E, and spo0K mutants.

Original languageEnglish (US)
Pages (from-to)7050-7054
Number of pages5
JournalJournal of Bacteriology
Volume173
Issue number21
StatePublished - 1991

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Immunology

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