We observed that TCam‐2‐DHRS2−/− clones are viable and found that the gene expression profile of TCam‐2‐DHRS2−/− clones and TCam‐2‐DHRS2+/+ cells is highly similar without romidepsin application (data S1B), suggesting that DHRS2 is not required for gene regulation and overall survival of GCT cells. Here, DHRS2 is linked to granular cell tumor.