Molecular cloning and expression in Escherichia coli K-12 of chromosomal genes determining the O antigen of an E. coli O2: K1 strain

FEMS Microbiol Lett. 1991 Aug 15;66(3):345-51. doi: 10.1016/0378-1097(91)90286-j.

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

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, Bacterial / genetics*
  • Chickens / microbiology
  • Chromosome Mapping*
  • Escherichia coli / genetics*
  • Escherichia coli / pathogenicity
  • Gene Expression Regulation, Bacterial*
  • Genes, Bacterial / genetics*
  • Lipopolysaccharides / analysis
  • Lipopolysaccharides / genetics*
  • O Antigens
  • Restriction Mapping
  • Sequence Homology, Nucleic Acid

Substances

  • Antigens, Bacterial
  • Lipopolysaccharides
  • O Antigens