its effects were enhanced in the presence of the carboxypeptidase inhibitor dl-mercaptomethyl-3-guanidinoethylthio-propanoic acid ( mergetpa ) and abolished by preincubation of the anaphylatoxin with carboxypeptidase b or with fab fragments of an anti-c3a monoclonal antibody .
C0007075
carboxypeptidase
C0054756
carboxypeptidase b