Type 1 diabetes: carboxypeptidase H, chromogranin A, glutamate decarboxylase, Imogen-38, insulin, insulinoma antigen-2 and 2β, islet-specific glucose-6-phosphatase catalytic subunit related protein (IGRP), and proinsulin (113). This evidence concerns the gene G6PC2 and pancreatic insulinoma.