9p0c is a 2 chain structure with sequence from Bordetella pertussis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
CYAA_BORPE This adenylate cyclase belongs to a special class of bacterial toxin. It causes whooping cough by acting on mammalian cells by elevating cAMP-concentration and thus disrupts normal cell function.