(A) Thymocytes from C57BL/6 and all TN lines were stained with anti-CD3, CD1d (PBS57) tetramer, anti-CD4, and anti-CD8. Results shown are gated on non-iNKT cells (CD3+ CD1d-tetramer−). (B) Thymocytes from C57BL/6 and all TN lines were stained with anti-CD3 and CD1d (PBS57) tetramer before being fixed, permeabilized, and stained with anti-Foxp3. Results shown are gated on non-iNKT cells. (C) Quantification of A–B where n=3 mice per group. (D) Lymph node cells from Vβ8.2 and Vβ8.2;RAG2−/− mice were stimulated with the indicated concentrations of α-GalCer. IFNγ was measured by ELISA of 24 hour culture supernatants. Error bars are SD. (E) Each monoclonal TN line was crossed to RAG2−/− background. Peripheral blood of mice of the indicated genotypes was stained with CD1d (PBS57) tetramer and anti-CD3. (F) Quantification of (E) averaged over 5 mice per group.