HNF1A and post-traumatic stress disorder: In contrast, CC homozygotes and C allele carriers of the HNF1A rs735396 polymorphism presented with the highest levels of GP30 (A3G3S3) N-glycan in the PTSD subjects and nominally higher levels of GP24 (A3G3S2) and GP28 (A3G3S3) N-glycans in the control subjects (Figure 3 and Figure 5, Supplementary Table S3).