Specificity
This antibody recognises Clostridium difficile toxin A. Clostridium difficile is a gram-positive motile bacterium and the leading cause of diarrhoea in developed countries. The incidence of disease in humans varies greatly with age, spore density, and the administration of antibiotics.Toxin A (TcdA) is a large exotoxin which is an essential virulence factor for C. difficile infection. TcdA has a molecular mass of ~308 kDa and is a glucosyltransferase, which irreversibly inactivates the Ras family of small GTPases to disrupt many important signalling pathways.