DLX1 and supranuclear palsy, progressive, 1: In vitro studies of DLX1 and the overlapping anti‐sense DLX1AS gene revealed that overexpression of DLX1 results in downregulation of MAPT whereas overexpression of DLX1AS leads to upregulation of MAPT, leading to the hypothesis that this locus contributes to the pathogenesis of PSP by influencing MAPT.