SUSD4 and breast carcinoma: Correlating the level of SUSD4 expression seen in blue to the left in each panel, with the color-annotated breast cancer subsets (Fig. 7F) or color-annotated stromal cell subsets (Fig. 7G), shows that SUSD4 is expressed by breast cancer epithelial cells of the various subtypes of breast cancer, but not by the stromal cells.