Scheme 3.

Enzymatic Fc glycan remodeling to produce sialylated antibody glycoforms using bacterial sialyltransferases (Pd2,6ST and PmST1 M144D).

Enzymatic Fc glycan remodeling to produce sialylated antibody glycoforms using bacterial sialyltransferases (Pd2,6ST and PmST1 M144D).