Some of these enzymes have been used as reagents to identify and characterize eucaryotic membrane proteins anchored to the cell surface by PI-glycan (33), but the role of these enzymes in vivo has not been determined.
Some of these enzymes have been used as reagents toidentify and characterize eucaryotic membrane proteinsanchored to the cell surface by PI-glycan (33), but the role ofthese enzymes in vivo has not been determined.