incubation of mouse thymocytes with mitogenic concentrations of concanavalin a causes a 2-fold increase in cell-surface-associated ( but not total cell ) sialyltransferase activity ( ectosialyltransferase , cmp-n-acetylneuraminate : d-galactosyl-glycoprotein n-acetylneuraminyltransferase , ec 2.4.99.1 ) as judged by incorporation of [ 14c ] sialic acid into endogenous cell acceptors and into added desialylated fetuin acceptor .
C0699040
cell-surface
C0007634
cell