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Bordetella pertussis adenylate cyclase toxin (ACT) intoxicates cells by producing intracellular cAMP. B. pertussis outer membrane vesicles (OMV) contain ACT on their surface (OMV–ACT), but the properties of OMV–ACT were previously unknown. We found that B. pertussis in the lung from a fatal pertussis case contains OMV, suggesting an involvement in pathogenesis. OMV–ACT and ACT intoxicate cells with...
Adenylate cyclase (AC) toxin from B. pertussis enters eukaryotic cells where it produces supraphysiologie levels of cAMP. Purification of AC toxin activity [(1989) J. Biol. Chem. 264, 19279] results in increasing potency of hemolytic activity and electroelution of the 216-kDA holotoxin yields a single protein with AC enzymatic, toxin and hemolytic activities. AC toxin and E. coli hemolysin, which...
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