FUT2 and asthma: Among the six SNPs in the credible set, one impacted the MAMSTR gene, while the remaining five SNPs affected FUT2. Overall, VEP estimated a 59% probability that the true causal variant impacts FUT2. The credible set included the functional SNP rs601338 (nonsense mutation, W143*), which was in high linkage disequilibrium (LD, r2 = 0.81, D′ = 0.97) with the top SNP rs281379 in the FUT2 locus and showed similar evidence of association with asthma (OR = 1.16 (95% CI = 1.09–1.23), P = 1.6 × 10−7).