Regulated Expression of the Beta2-Toxin Gene ( cpb2 ) in Clostridium perfringens Type A Isolates from Horses with Gastrointestinal Diseases
نویسندگان
چکیده
منابع مشابه
Atypical cpb2 genes, encoding beta2-toxin in Clostridium perfringens isolates of nonporcine origin.
Beta2-toxin, encoded by cpb2, is implicated in the pathogenesis of Clostridium perfringens enteritis. However, cpb2 genes from nonporcine C. perfringens isolates were not always expressed, at least in vitro. Nucleotide sequencing identified atypical cpb2 genes with 70.2 to 70.7% DNA identity to previously identified (consensus) cpb2. Atypical beta2-toxin displayed 62.3% identity and 80.4% simil...
متن کاملOccurrence of Beta2 toxigenic Clostridium perfringens isolates with different toxin types in Iran
Clostridium perfringens is an important cause of enteric diseases in both human and animals. The bacteria produce several toxins which play key roles in the pathogenesis of diseases and are classified into five toxin types, on the basis of the differential production of Alpha, Beta, Epsilon and Iota toxins. In this study a single PCR assay was developed and used for detection of cpb2 gene to id...
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Although Clostridium perfringens is recognized as an important cause of clostridial enteric diseases, only limited knowledge exists concerning the association of particular C. perfringens toxinotypes (type A to E) with gastrointestinal (GI) diseases in domestic animals. Some C. perfringens isolates also produce the newly discovered beta2-toxin (CPB2). Recent epidemiological studies suggested th...
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Background: Clostridium perfringens is known as the most widely distributed pathogenic microorganism in nature. It is an extremely important pathogen of human and domestic animals. In a commonly used classification scheme, C. perfringens is divided into five toxinotypes (A to E) based on the production of four major toxins (alpha, beta, epsilon, and iota). Enterotoxin is not usually used for C....
متن کاملoccurrence of beta2 toxigenic clostridium perfringens isolates with different toxin types in iran
clostridium perfringens is an important cause of enteric diseases in both human and animals. the bacteria produce several toxins which play key roles in the pathogenesis of diseases and are classified into five toxin types, on the basis of the differential production of alpha, beta, epsilon and iota toxins. in this study a single pcr assay was developed and used for detection of cpb2 gene to id...
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ژورنال
عنوان ژورنال: Journal of Clinical Microbiology
سال: 2005
ISSN: 0095-1137,1098-660X
DOI: 10.1128/jcm.43.8.4002-4009.2005