Regulation of the intercellular adhesin locus regulator (icaR) by SarA, sigmaB, and IcaR in Staphylococcus aureus

J Bacteriol. 2008 Oct;190(19):6530-3. doi: 10.1128/JB.00482-08. Epub 2008 Jul 25.

Abstract

The staphylococcal accessory regulator SarA and the alternative sigma factor sigma(B) have been previously identified as positive regulators, and IcaR as a negative regulator, of icaADBC expression. Here, we show that in Staphylococcus aureus SarA and sigma(B) are also required for icaR expression and that IcaR does not have a significant effect on its own expression.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adhesins, Bacterial / genetics*
  • Adhesins, Bacterial / metabolism
  • Adhesins, Bacterial / physiology
  • Bacterial Proteins / genetics*
  • Bacterial Proteins / metabolism
  • Biofilms / growth & development
  • Gene Expression Regulation, Bacterial*
  • Genetic Complementation Test
  • Models, Biological
  • Mutation
  • Promoter Regions, Genetic / genetics
  • Sigma Factor / genetics
  • Sigma Factor / metabolism
  • Staphylococcus aureus / genetics*
  • Staphylococcus aureus / metabolism
  • Staphylococcus aureus / physiology
  • Trans-Activators / genetics
  • Trans-Activators / metabolism

Substances

  • Adhesins, Bacterial
  • Bacterial Proteins
  • SarA protein, bacterial
  • Sigma Factor
  • Trans-Activators