3.2.1.123 additional information reduces glycosphingolipid levels in HL60 cells 3.2.1.123 additional information removes glycosphinolipid-sugar chains from the cell surface of living cells 3.2.1.123 additional information enzyme destroys the cholera toxin receptor GM1 on the cell surface of HELA cells and therefore reduces the amount of cholera toxin attached to the cells 3.2.1.123 additional information reduces ganglioside content in membrane fractions and intact cells of A431 cells 3.2.1.123 oligoglycosylglucosyl-(1<->1)-ceramide + H2O -