Evolution of Salmonella O antigen variation by interspecific gene transfer on a large scale.
The O antigen is a bacterial surface polysaccharide made up of repeats of a short oligosaccharide. There are about 60 forms of O antigen in Salmonella, and genetic analysis indicates that these were acquired by interspecific gene transfer.
Reeves
P
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Microbiology Department, University of Sydney, NSW, Australia.
D000940:Antigenic Variation / Q000235:genetics*; D000942:Antigens, Bacterial / Q000737:chemistry / Q000235:genetics*; D002240:Carbohydrate Sequence; D005798:Genes, Bacterial; D008969:Molecular Sequence Data; D005810:Multigene Family; D011110:Polymorphism, Genetic; D012475:Salmonella / Q000235:genetics / Q000276:immunology*; D017386:Sequence Homology, Amino Acid; D014162:Transfection
D000942:Antigens, Bacterial