Flowcytometric assessment of CD94 expression. Comparison of CD94/NKG2 expressing cells on peripheral blood mononuclear cell (PBMC) from D2 Klrd1+/+and D2 Klrd1-/- mice (the Klrd1 gene encodes CD94). A subset of the lymphocytes from D2 Klrd1+/+ mice express the CD94/NKG2 receptor complex (within the drawn area). In contrast cells from D2 Klrd1-/- did not express the receptor complex. The data is representative of three independent experiments.