Which enzyme is used to treat red blood cells to remove or reduce the expression of certain blood group antigens, such as the A and B antigens, for the purpose of creating universal donor red cells?

Alpha-galactosidase is an enzyme that can be used to remove or reduce the expression of certain blood group antigens, such as the A and B antigens, from red blood cells, potentially creating universal donor red cells that can be transfused to recipients with different ABO blood types.