C-peptide is a 31 amino acid peptide released when proinsulin is split into insulin and C-peptide. In rats, two isoforms of proinsulin exists, the difference is two amino acid residues in the C-peptide, termed C-peptide I and C-peptide II. Proinsulin is split when it is released from the pancreas into the blood in response to a rise in serum glucose levels. C-peptide function is not fully understood, it binds to cell membranes which leads to increased intracellular Ca2+ concentration and subsequent stimulation of N+, K+-ATPase and endothelial nitric oxide synthase activities. C-peptide also functions in repair of the muscular layer of arteries.
Applications:
Suitable for use in ELISA. Other applications not tested.
Recommended Dilutions:
ELISA: Used in indirect ELISA or as a detection antibody in a sandwich ELISA with C7905-01Q as a capture antibody. The sandwich ELISA is only suitable for the detection of rat and not mouse C-peptide I or II.
Optimal dilutions to be determined by the researcher.
Hybridoma:
Sp2/0 myeloma cells with spleen cells from Balb/c mice.
Recommended Secondary Antibodies:
I1904-23: IgG, X-Adsorbed (FITC) Pab Gt xMo
I1904-65W: IgG, F(ab