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 Dilution:
Optimal dilutions to be determined by the researcher.
Hybridoma:
Sp2/0 myeloma cells with spleen cells from Balb/c mice.
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.