title: Presence of different O antigen forms in three isolates of one clone of Escherichia coli.
abstract: Escherichia coli strains ECOR2, ECOR3 and K-12 are very closely related in genotype as indicated by multilocus enzyme electrophoresis. We show that they have very different rfb regions indicating that recombination has occurred in this region, and we suggest that it may be associated with niche adaptation.
authors.affiliation: Department of Microbiology, University of Sydney, New South Wales, Australia.
authors.forename: D
authors.initials: D
authors.lastname: Liu
authors.forename: P R
authors.initials: PR
authors.lastname: Reeves
mesh_terms: D000942:Antigens, Bacterial / Q000235:genetics*; D003001:Cloning, Molecular; D004269:DNA, Bacterial / Q000235:genetics; D004926:Escherichia coli / Q000235:genetics* / Q000276:immunology* / Q000302:isolation & purification; D005798:Genes, Bacterial; D014644:Genetic Variation; D009693:Nucleic Acid Hybridization; D019081:O Antigens; D011110:Polymorphism, Genetic; D011135:Polysaccharides, Bacterial / Q000235:genetics* / Q000276:immunology*; D011995:Recombination, Genetic; D015183:Restriction Mapping
chemical_list: D000942:Antigens, Bacterial; D004269:DNA, Bacterial; D019081:O Antigens; D011135:Polysaccharides, Bacterial