(A) Thymocytes from WT and Itk−/− mice were stained for expression of NK1.1 along with CD122, CD44 and CD4. (B) Thymocytes from WT and Itk−/− mice were stained for expression of NK cell markers CD49a (ITGA1), 2B4 (CD244), Ly49E/F (KLRA5/6), NKG2A/C/E (KLRC1/2/3), CD94 (KLRD1) and CD122. Dot-plots show gated CD24lo V6+ cells. Results are representative of 2 experiments with at least 3 mice per group.