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Comparative Study
. 1987 Dec;55(12):3233-6.
doi: 10.1128/iai.55.12.3233-3236.1987.

Extensive homology between the leukotoxin of Pasteurella haemolytica A1 and the alpha-hemolysin of Escherichia coli

C A Strathdee  1 , R Y Lo
Affiliations
Comparative Study

Extensive homology between the leukotoxin of Pasteurella haemolytica A1 and the alpha-hemolysin of Escherichia coli

C A Strathdee et al. Infect Immun. 1987 Dec.

Abstract

The 19.8- and 101.9-kilodalton leukotoxin proteins of Pasteurella haemolytica (LKTC and LKTA, respectively) share extensive homology with the HLYC and HLYA alpha-hemolysin proteins of Escherichia coli. The leukotoxin LKTA protein cross-reacts with hemolysin-specific antisera in Western blot (immunoblot) analysis, indicating that it shares epitopes with the alpha-hemolysin HLYA protein. Both LKTA and HLYA contain a conserved hydrophobic region, as well as a set of tandemly repeated domains. These features have been implicated in the lytic function of the alpha-hemolysin.

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