Proinsulin (pro-insulin, PI) is an 86 amino acid which is synthesised by the beta cells of the pancreas. It is also the precursor to the insulin molecule. Only a small portion approx. 15% is released as pro-insulin whereas the rest is converted to c-peptide and insulin, both of these are secreted in equimolar quantity in the blood.

ELISA kit information:

• Reactivity: Human
• Sample Type: Serum, Plasma
• Sensitivity: < 0.5 pmol/l
• Target: Proinsulin, Pro-Insulin