MAN1A1 and type 1 diabetes mellitus: Using the publicly available dataset from GWAS of plasma protein N-glycans in the general European population [43, 44] we found that the same Man9 glycan was associated with rs2230203 (p=1.33 × 10−3), but did not reach genome-wide significance in that cohort, which may mean that it has a bigger effect in type 1 diabetes.