| Literature DB >> 10961457 |
Abstract
Competence for genetic transformation in pneumococcus depends on the coordinated functioning of a dispersed regulon responsible for production of proteins active in DNA binding, uptake, and recombination. This regulon is characterized by a shared noncanonical promoter consensus, TACGAATA, and is capable of 100-fold expression modulations. This review discusses recent evidence that its regulation depends on a novel sigma factor, itself controlled by an autostimulatory quorum sensing system that acts through an extracellular peptide signal.Mesh:
Substances:
Year: 2000 PMID: 10961457 DOI: 10.1016/s0923-2508(00)00171-6
Source DB: PubMed Journal: Res Microbiol ISSN: 0923-2508 Impact factor: 3.992