ADP-ribosylating toxin CARDS

UniProtKB accession:  P75409

Grouped By:  Matching UniProtKB accession

UniProtKB description:  The main virulence factor for this bacteria, a mono-ADP-ribosylating toxin (mART), that transfers the ADP-ribosyl group from NAD(+) to multiple target proteins in vitro (PubMed:16617115, PubMed:24948331, PubMed:25538194, PubMed:29362229, PubMed:30977272, PubMed:34078958). Also elicits cytopathic effects in mammalian cells, such as disorganization and disruption of respiratory epithelial integrity in tracheal epithelium and vacuolization in the cytoplasm of CHO and HeLa cells as well as in mice and baboons (PubMed:16617115, PubMed:19859545, PubMed:24948331, PubMed:29362229, PubMed:30977272, PubMed:34078958). Treatment of mice or baboons with CARDS elicits a response that is consistent with human M.pneumoniae infections and mouse models of both infection and intoxication, suggesting that CARDS toxin is sufficient to cause prolonged inflammatory responses and airway dysfunction. Treatment of baboons with CARDS induces a number of cytokines; G-CSF (40 fold), IL-1Ra (10 fold), IL-6 and IL-8 (333 and 100 fold, respectively), MIP-1a (5 fold), and RANTES (9 fold). Treatment of mice gives a similar response (PubMed:19859545). Binds phosphatidyl choline, dipalmitoylphosphatidylcholine (DPPC) and sphingomyelin via domains D2 plus D3 (PubMed:25848012).