PMID: 8938847Nov 1, 1996Paper

Cloning of a unique sequence specific to isolates of type B:2 Pasteurella multocida

Research in Veterinary Science
K M TownsendJ M Papadimitriou

Abstract

Two Carter type B Pasteurella multocida isolates, Izatnagar 52 and 25, isolated from cases of haemorrhagic septicaemia (HS), were used in a modified subtractive hybridisation technique with the specific aim of cloning unique DNA sequences related to the pathogenesis of HS. Biochemical and protein analyses have shown these isolates to be similar, but reports indicate that they have differences in pathogenicity. The subtracted inserts were screened against genomic DNA from a wide range of P multocida isolates, with two distinct fragments demonstrating specific hybridisation with Carter type B isolates that cause HS. No identity was observed with either Carter type E isolates or non-HS type B strains. The clones were sequenced and a search of the GenBank database revealed significant identity of the clone A3b (296 nt) to P haemolytica lipoprotein, whereas there was no significant identity with 6b (956 nt). Both these fragments had a high level of identity (72.8 to 76.9 per cent) to the H influenzae Rd genome.

References

Apr 1, 1988·Proceedings of the National Academy of Sciences of the United States of America·W R Pearson, D J Lipman
Oct 14, 1983·Science·T D Sargent, I B Dawid
Jul 28, 1995·Science·R D FleischmannJ M Merrick
Jun 1, 1993·Genetic Analysis, Techniques and Applications·S FletcherM W Beilharz

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Citations

Dec 16, 1998·Veterinary Microbiology·K M TownsendA J Frost
May 23, 1998·Journal of Clinical Microbiology·K M TownsendH J Dawkins
Jun 14, 2001·Systematic and Applied Microbiology·K ZwirglmaierK H Schleifer

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