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J. Bacteriol., Jan 1998, 35-40, Vol 180, No. 1
AG Allen, T Isobe and DJ Maskell
A DNA locus from Bordetella pertussis capable of reconstituting
lipopolysaccharide (LPS) O-antigen biosynthesis in Salmonella typhimurium
SL3789 (rfaF511) has been isolated, by using selection with the antibiotic
novobiocin. DNA within the locus encodes a protein with amino acid sequence
similarity to heptosyltransferase II, encoded by waaF (previously rfaF) in
other gram-negative bacteria. Mutation of this gene in B. pertussis,
Bordetella parapertussis, and Bordetella bronchiseptica by allelic exchange
generated bacteria with deep rough LPS phenotypes consistent with the
proposed function of the gene as an inner core heptosyltransferase. These
are the first LPS mutants generated in B. parapertussis and B.
bronchiseptica and the first deep rough mutants of any of the bordetellae.
Copyright © 1998, American Society for Microbiology
Identification and cloning of waaF (rfaF) from Bordetella pertussis and use to generate mutants of Bordetella spp. with deep rough lipopolysaccharide [In Process Citation]
Centre for Veterinary Science, Department of Clinical Veterinary Medicine, University of Cambridge, United Kingdom. aga20@cam.ac.uk
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