There is a list of well-characterized TACAs in many types of human carcinomas: Truncated mucin-type O-GalNAc glycans, Tn and STn antigens; Sialyl Lewis-related antigens, SLeA, SLeX, and SLeC; Glycosphingolipids, GM3, GD3, GD2, fucosyl-GM1, and Globo H (Figure 1). This evidence concerns the gene MUC5AC and carcinoma.