title: Physical changes in the epsilon prototoxin molecule of Clostridium perfringens during enzymatic activation.
abstract: Enzymatic activation of Clostridium perfringens epsilon prototoxin removed a small basic part of the molecule, causing a slight change in molecular weight (32,700 to 31,200) and a large change in isoelectric point (from pH 8.02 into fractions of 5.36 and 5.74).
mesh_terms: D001427:Bacterial Toxins / Q000378:metabolism*; D002918:Chymotrypsin / Q000378:metabolism*; D003016:Clostridium perfringens; D007526:Isoelectric Point; D008970:Molecular Weight; D014357:Trypsin / Q000378:metabolism*
chemical_list: D001427:Bacterial Toxins; D002918:Chymotrypsin; D014357:Trypsin