Moreover, EPZ011989‐treated OVA‐expressing tRCC (tRCC‐OVA) cells showed enhanced cell surface expression of SIINFEKL‐bound H‐2Kb compared with untreated tRCC‐OVA cells (Fig. S2B), as well as significantly accelerated T‐cell‐mediated killing of tRCC‐OVA cells (Fig. S2C). This evidence concerns the gene FUT1 and renal cell carcinoma associated with Xp11.2 translocations/TFE3 gene fusions.