When CT26 or LLC Stk24 KO mutant cells were inoculated into immunodeficient NOD‐SCID IL2rg−/− (NSG) mice, the in vivo growth of the xenografted tumor cells was indistinguishable between the Stk24 KO mutant and wild‐type controls (Figure S2M,N, Supporting Information). This evidence concerns the gene DDX53 and neoplasm.