Single-gene feature plots in 2 control IgG2a tumors showed positive expression of CK5, TP63, CK14, GATA3, and CK7 and negative expression of Upk3 and CK20 (Supplemental Figure S5E) in the TKO tumor cells, consistent with the IHC/IF expression in Figure 2. This evidence concerns the gene KRT14 and neoplasm.