| Title: | Cell-associated pheromone peptide (cCF10) production and pheromone inhibition in Enterococcus faecalis |
| Author(s): | Buttaro BA; Antiporta MH; Dunny GM; |
| Address: | "Department of Microbiology, University of Minnesota Medical School, Minneapolis, Minnesota 55455, USA" |
| DOI: | 10.1128/JB.182.17.4926-4933.2000 |
| ISSN/ISBN: | 0021-9193 (Print) 1098-5530 (Electronic) 0021-9193 (Linking) |
| Abstract: | "In Enterococcus faecalis, the peptide cCF10 acts as a pheromone, inducing transfer of the conjugative plasmid pCF10 from plasmid-containing donor cells to plasmid-free recipient cells. In these studies, it was found that a substantial amount of cCF10 associates with the envelope of the producing cell. Pheromone activity was detected in both wall and membrane fractions, with the highest activity associated with the wall. Experiments examining the effects of protease inhibitor treatments either prior to or following cell fractionation suggested the presence of a cell envelope-associated pro-cCF10 that can be processed to mature cCF10 by a maturase or protease. A pCF10-encoded membrane protein, PrgY, was shown to prevent self-induction of donor cells by reducing the level of pheromone activity in the cell wall fraction" |
| Keywords: | Bacterial Proteins/metabolism Cell Wall Culture Media Enterococcus faecalis/genetics/*metabolism Membrane Proteins/genetics/*metabolism Mutagenesis Oligopeptides/antagonists & inhibitors/*biosynthesis/genetics Pheromones/antagonists & inhibitors/*biosynth; |
| Notes: | "MedlineButtaro, B A Antiporta, M H Dunny, G M eng F32 AI008742/AI/NIAID NIH HHS/ R01 GM049530/GM/NIGMS NIH HHS/ GM49530/GM/NIGMS NIH HHS/ IF32-AI08742/AI/NIAID NIH HHS/ Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. 2000/08/12 J Bacteriol. 2000 Sep; 182(17):4926-33. doi: 10.1128/JB.182.17.4926-4933.2000" |
