Recombinant clonal CHO cell line stably expressing full length human FUT4 (fucosyltransferase 4). Since FUT4 controls the synthesis of antigen CD15, forced expression of FUT4 results in overexpression of CD15 at the cell surface, which was confirmed by flow cytometry. The stable clonal cell line was selected for high levels of CD15 expression compared to the parental CHO-K1 cell line.