Figure 8.

(A) The absolute numbers of days 3 and 4 CD4 SP progeny from 2 × 10⁶ DP^hic-Kit⁻ cells from MHC-DKO and MHC^+/+ (Cont) mice. ∗, P < 0.05. (B) TCR Vα2/Vα3 and TCR Vα2/Vα8.2 profiles of gated TCRβ^lo-med thymocytes in MHC-DKO and MHC^+/− mice. The numbers show the percentages of each subpopulation, and numbers in parenthesis indicate the percentage in total thymocytes. MHC-DKO thymocytes contain ≈6-fold more TCR^lo-med cells that coexpress two different TCRα chains than in MHC^+/− mouse thymus. Data are shown on two-parameter logarithmic plots (50%).