The majority of atypical cpb2 genes in Clostridium perfringens isolates of different domestic animal origin are expressed
2012
Kircanski, Jasmina | Parreira, Valeria R. | Whiteside, Samantha | Pei, Yanlong | Prescott, John F.
This study examined the prevalence and expression of the “consensus” and the “atypical”cpb2 genes in Clostridium perfringens isolates from cattle, chickens, dogs, goats, horses, pigs and sheep using polymerase chain reaction (PCR), sodium dodecyl sulfate-polyacrylamide gel electrophoresis followed by Western blotting. Almost all porcine isolates (12/14) carried and expressed the consensus form of cpb2 but, when present in 108 non-porcine isolates, the gene was usually the atypical form (40 atypical versus 9 consensus). Western blotting showed expression in 30 of 40 (75%) atypical cpb2-positive isolates, considerably more frequently than reported previously. CPB2 was expressed by almost all (20/21) the consensus cpb2-positive isolates, regardless of source.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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