Abstract
The complete 21,344-bp DNA sequence of the bacteriocin-encoding plasmid pEF1 from Enterococcusfaecium 6TI a was determined. Thirty-four putative open reading frames which could code for proteins longer than 42 amino acids were found. Those included the structural genes encoding for the previously described bacteriocins enterocin I and J (also named as enterocins L50A and L50B). After comparison to sequences in public databases, analysis of the gene organization of pEFI suggests a modular structure with three different functional domains: the replication region, the bacteriocin region and the mobilization plus UV-resistance region. This genetic mosaic structure most probably evolved through recombination events promoted by transposable elements. The hypothesis that the bacteriocin cluster on pEF1 could act as a functional plasmid stabilization module in E. faecium 6T1a is discussed. (c) 2006 Elsevier Inc. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 175-181 |
| Number of pages | 7 |
| Journal | Plasmid |
| Volume | 57 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Mar 2007 |
Keywords
- bacteriocinogenic plasmid
- plasmid stability
- Enterococcus faecium
- nucleotide sequence
- annotation
- LACTIC-ACID BACTERIA
- CONJUGATIVE PLASMID
- PHEROMONE RESPONSE
- GENETIC-ANALYSIS
- ENTEROCINS L50A
- FAECALIS
- SEQUENCE
- DETERMINANT
- IMMUNITY
- AS-48