to determine whether phosphorylation of cell surface proteins is involved in nk cell activity , the phosphorylation patterns of a rat nk cell line ( rnk-16 ) incubated with 12.5 microm [ gamma-32p ] atp were characterized before and after exposure to yac-1 cells , which serve as targets for killing , and k562 cells , which are not killed by rnk-16 cells .
C0699040
of cell surface
C0007634
cells