CYP21A2 and type 1 diabetes mellitus: Similarly, each method produced a strong peak of association at the MHC, but comprising of different genes—CYP21A2 was found to be associated with T1D by PrediXcan (p = 3.26 × 10−75) and MetaXcan (p = 2.54 × 10−93), but was not tested by FUSION.