Characterization of eugonic fermenters group EF-4 by polyacrylamide gel electrophoresis and protein immunoblot analysis
1991
Hanner, T.L. | Allen, J.W. | Robertson-Byers, A. | Hurley, S.L.
Whole-cell lysates and proteinase K-extracted lipopolysaccharide (LPS) of 19 strains of the group eugonic fermenter-4 (EF-4) were analyzed by electrophoresis and protein immunoblotting. These strains were isolated from dog- and cat-bite abscesses in human beings, ferret and human gastric lesions, and cat-lung infections. These strains represent 2 biovar groupings; EF-4a biovars ferment glucose and possess arginine dihydrolase activity, whereas EF-4b biovars do not. Electrophoresis of whole-cell lysates could distinguish between these biovars groups. Electrophoresis of LPS extracts revealed that all strains of EF-4 possess smooth chemotypes. Two strains of EF-4a reacted weakly in protein immunoblots and revealed distinct LPS profiles. These studies suggests that subgroups of EF-4 biovars may exist.
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