title: Plasmids in Yersinia pestis.
abstract: Pesticinogenic and Ca2+-dependent strains of Yersinia pestis harbored plasmids of about 6 and 45 megadaltons, respectively. In addition, most isolates examined possessed a cryptic 65-megadalton plasmid.
mesh_terms: D004269:DNA, Bacterial / Q000032:analysis; D008970:Molecular Weight; D010957:Plasmids; D015010:Yersinia pestis / Q000235:genetics* / Q000472:pathogenicity
chemical_list: D004269:DNA, Bacterial