The Streptomyces aureofaciens homologue of the sporulation gene whiH is dependent on rpoZ-encoded sigma factor

Biochim Biophys Acta. 1999 Jan 18;1444(1):80-4. doi: 10.1016/s0167-4781(98)00258-9.

Abstract

Using the method for the identification of promoters recognized by a sporulation specific sigma factor RpoZ, we identified a promoter in Streptomyces aureofaciens, directing expression of a gene having high sequence similarity (83% amino acid identity) to sporulation transcription factor WhiH of Streptomyces coelicolor. High-resolution S1-nuclease mapping using RNA prepared from S. aureofaciens from various developmental stages showed high similarity of PwhiH promoter to the consensus sequence of flagellar and chemotaxis promoters. The promoter was induced at the time of aerial mycelium formation, and was off in S. aureofaciens strain with rpoZ-disrupted gene. The results suggest that the PwhiH promoter is recognized by sigma factor RpoZ in S. aureofaciens.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Bacterial Proteins / genetics*
  • Base Sequence
  • Cloning, Molecular
  • DNA-Binding Proteins*
  • Molecular Sequence Data
  • Promoter Regions, Genetic*
  • Repressor Proteins / chemistry
  • Repressor Proteins / genetics*
  • Sequence Homology
  • Sigma Factor / genetics*
  • Streptomyces aureofaciens / genetics*

Substances

  • Bacterial Proteins
  • DNA-Binding Proteins
  • Repressor Proteins
  • RpoZ protein, Streptomyces aureofaciens
  • Sigma Factor
  • whiH protein, Streptomyces

Associated data

  • GENBANK/AF096293