Distinct Ly49 and CD94/NKG2 cell surface expression by B6 versus LTβR^–/–NK cells. Splenocytes were isolated from B6 and LTβR^–/– mice and were stained with mAbs for DX5, CD122, CD3 and for the indicated Ly49 receptors and CD94/NKG2. Analysis was performed on DX5⁺CD122⁺CD3^– gated splenocytes. The results are presented as the percentage of positive cells in the region indicated by the horizontal bar, and are representative for 4 experiments.