SORT1 and triple-A syndrome: Chromatin-immunoprecipitation-chip data from human AAA tissue31 revealed TF-binding sites in 5 genes (SMYD2, SORT1, CDKN2BAS1/ANRIL, ERG, and DAB2IP), which harbor AAA risk loci, but none of these binding sites included the lead SNP tested for association with AAA (Online Table XXIV).