When searching for terms relevant to T1D, including the pancreas or pancreatic islets, we found that 106 of the whole plasma proteins were classified by the term “pancreas” and included, for example, glucagon and digestive enzymes such as pancreatic lipase, amylase and carboxypeptidase A2 (Table S5). The gene discussed is GCG; the disease is type 1 diabetes mellitus.