C-peptide
(redirected from proinsulin C-peptide)Also found in: Medical.
C-peptide
[¦sē ′pep‚tīd] (biochemistry)
A metabolically inactive polypeptide chain that is a by-product of normal insulin production by the beta cells in the pancreas.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.