PRSS2 and type 2 diabetes mellitus: Analysis of GTEx baseline expression profiles in T2DM-related tissues showed that PRSS2 (Z = 3.12) and SPINK1 (Z = 2.89) attain their highest levels in pancreas, whereas QPCT (Z = 2.92) and SCD5 (Z = 2.43) are most strongly expressed in adrenal gland.