Bcl10 deficiency does not interfere with NK cell development. Splenocytes (A), bone marrow cells (B), and liver lymphocytes (C) from Bcl10-deficient and wild-type control animals were stained for expression of CD49b (DX5), NK1.1, and Ly49D NK-cell surface markers. The percentages of NK cells with respect to total cell numbers are indicated. Data are representative of 4 mice per group.