title: [Electron microscopic study of conjugative plasmids from serologically typed E. coli AP1].
abstract: The plasmid DNAs isolated from E. coli AP1 were studied by electron microscopy. Two plasmid DNA forms (FB1-1 and FB1--2) with the mol wt of 35.9 +/- 0.5 x x 10(6) and 51.5 +/- 0.6 x 10(6) daltons, respectively, were revealed.
mesh_terms: D003227:Conjugation, Genetic; D004269:DNA, Bacterial / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics* / Q000648:ultrastructure; D010957:Plasmids
chemical_list: D004269:DNA, Bacterial
vernacular_title: Elektronno-mikroskopicheskoe izuchenie kon"iugativnykh plazmid serologicheski tipiruemykh E. coli AP1.