using high performance liquid chromatography we have separated bradykinin from kallidin , des-arg9-bradykinin ( the degradation product of carboxypeptidase n ) as well as the fragments arg-pro-pro-gly-phe , ser-pro , and phe-arg , the degradation products formed by angiotensin-converting enzyme .
C0022474
kallidin
C0006100
bradykinin