2.4.1.B62	EDTA	2 mM, complete inhibition	21	
2.4.1.B62	additional information	toxin A undergoes autocatalytic processing. The glucosyltransferase activity of the TcdA(1-1832) protein is activated by autoproteolysis. The presence of the autoprotease domain, residues 543-800, is restricting the activity of the glucosyl transferase domain	2