Abstract
The rfb gene cluster which determines the biosynthesis of the O2 O antigen has been cloned from an Escherichia coli O2: K1 strain isolated from a case of septicaemia in chickens. The region required for expression of the O antigen in E. coli K-12 was localised to a 10.7 to 14.15-kb segment which was shown to be chromosomal in origin with a close linkage to the gnd and his genetic loci.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antigens, Bacterial / genetics*
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Chickens / microbiology
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Chromosome Mapping*
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Escherichia coli / genetics*
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Escherichia coli / pathogenicity
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Gene Expression Regulation, Bacterial*
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Genes, Bacterial / genetics*
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Lipopolysaccharides / analysis
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Lipopolysaccharides / genetics*
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O Antigens
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Restriction Mapping
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Sequence Homology, Nucleic Acid
Substances
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Antigens, Bacterial
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Lipopolysaccharides
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O Antigens