Fig. 5.

Increased tyrosine phosphorylation in CD45−/− NK cells. Lysates were prepared from WT and CD45−/− NK cells that were freshly isolated or expanded in culture with IL-2. Equal cell equivalents were loaded into each lane. Left and Right are short and long exposures, respectively, of the same blot. Lower shows equal loading between WT and CD45−/− NK cells by probing for actin. Data are representative of two to nine independent experiments.