MAPT and frontotemporal dementia: At a conjunction FDR < 0.05, we identified 1 SNP that was associated with increased risk for both PSP and FTD (Table 2, Fig. 1b): rs199533 (exonic; closest gene = NSF within MAPT region on chr 17, PSP p-value = 3.5 × 10−41, minimum conjunction FDR = 9.3 × 10−9; Supplemental Fig. 1b).