title: Sequence diversity of the plasmid replication gene repC in the Rhizobiaceae.
abstract: The repABC operon is essential for stable maintenance of some Rhizobiaceae plasmids and of pTAV320 from Paracoccus versutus. These plasmids are the largest described family of homologous, yet compatible replicons. The repC gene is essential for plasmid replication, and previous work identified four distinct sequence groups (repC1, repC2, repC3, and repC4) that appear to define different compatibility classes. Probes for these different groups were used to characterize plasmids in Rhizobium leguminosarum population studies and three new repC sequence groups, repC5, repC6, and repC7 were identified. The general repC primers were modified to amplify a wider range of repC sequences and repC sequences were identified in Sinorhizobium and Mesorhizobium type strains. We also showed that the repC3 group-specific primers described previously do not amplify all repC3 sequences and developed a new repC3 amplification strategy.
authors.affiliation: Department of Biology, University of York, York, United Kingdom.
authors.forename: K M
authors.initials: KM
authors.lastname: Palmer
authors.forename: S L
authors.initials: SL
authors.lastname: Turner
authors.forename: J P
authors.initials: JP
authors.lastname: Young
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D001483:Base Sequence; D017931:DNA Primers / Q000737:chemistry; D004261:DNA Replication / Q000235:genetics*; D004269:DNA, Bacterial / Q000032:analysis; D005060:Europe; D005798:Genes, Bacterial; D014644:Genetic Variation / Q000235:genetics*; D008969:Molecular Sequence Data; D010802:Phylogeny; D010957:Plasmids / Q000096:biosynthesis / Q000235:genetics*; D016133:Polymerase Chain Reaction; D012230:Rhizobiaceae / Q000235:genetics*; D016961:Rhizobium leguminosarum / Q000235:genetics
chemical_list: D001426:Bacterial Proteins; D017931:DNA Primers; D004269:DNA, Bacterial; C043650:RepC protein, Staphylococcus aureus