we have characterized this peptide in detail both immunologically and chemically and have shown that it is 2500 daltons larger than bovine proinsulin ( 8700 daltons ) , possesses both insulin and bovine c-peptide-specific antigenic determinants , and contains all the tryptic peptides found in bovine proinsulin .
C0006558
c-peptide
C0033362
proinsulin