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Purification of Salmonella stanley enterotoxin and its immunology and dermatotoxicity


, : Purification of Salmonella stanley enterotoxin and its immunology and dermatotoxicity. Indian Journal of Experimental Biology 30(1): 23-25

Isolation of an enterotoxic factor from cell-free-culture-supernatant of S. stanley was achieved to homogeneity using salt precipitation, dialysis and molecular seive chromatography through Sephadex G-100 and G-200 columns. The purified enterotoxic factor yielded a single protein band on polyacrylamide gel electrophoresis, induced antibodies in the rabbit and showed single band on agar gel precipitation. It induced fluid accumulation in the rabbit ligated ileal loop (RLIL) and was neutralized by the homologous antiserum. Antigenically it was not related to cholera toxin but with enterotoxin of other Salmonella serotypes. It also exerted dermatotoxic effect in the rabbit skin causing marked central necrosis with peripheral erythema.

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PMID: 1506012


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