Fig. 2. Wild-type THAP1 binds itself and most DYT6 mutants, but not Q154fs180X.
(A) Representative immunoblot demonstrating coimmunoprecipitation of wild-type THAP1-FLAG (wtTHAP-FLAG) by different V5-tagged THAP1 variants in lysates from transfected HEK-293T cells. No wtTHAP1-FLAG was immunoprecipitated by anti-V5 from control lysates expressing wtTHAP1-FLAG alone. All of the V5-tagged THAP1 variants coimmunoprecipitated wtTHAP1-FLAG except for the Q154fs180X mutant, which lost the interaction. (B) Relative differences in levels of wtTHAP1-FLAG immunoprecipitated by each V5-tagged THAP1 variant. Data for each DYT6 mutant are expressed as mean fold changes relative to V5-wtTHAP1, +/− standard errors from four independent experiments. Normalization of densitometry values is described in Materials and Methods.