Title: | Targeted disruption of the PD78 gene (traF) reduces pheromone-inducible conjugal transfer of the bacteriocin plasmid pPD1 in Enterococcus faecalis |
Author(s): | Nakayama J; Clewell DB; Suzuki A; |
Address: | "Department of Applied Biological Chemistry, University of Tokyo, Japan" |
DOI: | 10.1111/j.1574-6968.1995.tb07537.x |
ISSN/ISBN: | 0378-1097 (Print) 0378-1097 (Linking) |
Abstract: | "Bacterial sex pheromone, cPD1, induces sexual aggregation of Enterococcus faecalis harboring the bacteriocin plasmid, pPD1, and enables pPD1 to transfer at high frequency in a liquid culture. PD78 is a cPD1-inducible cell surface protein encoded by pPD1. The PD78 gene, traF, was disrupted by homologous recombination between pPD1 and an artificial vector having a deletion in the middle portion of traF. The disruption of traF did not affect the cPD1-inducible aggregation but reduced the transfer frequency of pPD1 to 2% of the wild-type level" |
Keywords: | "Bacterial Proteins/*genetics Bacteriocins/*genetics Blotting, Southern *Conjugation, Genetic/drug effects Enterococcus faecalis/*genetics Escherichia coli/genetics Genes, Bacterial/genetics Mutagenesis, Insertional Pheromones/pharmacology Plasmids/*geneti;" |
Notes: | "MedlineNakayama, J Clewell, D B Suzuki, A eng Research Support, Non-U.S. Gov't England 1995/05/15 FEMS Microbiol Lett. 1995 May 15; 128(3):283-8. doi: 10.1111/j.1574-6968.1995.tb07537.x" |