Rejection of Tap1- or H2-D^b-reconstituted IFN-gamma-insensitive RAD.gR.28 tumor cells in wild type mice. The RAD.gR.28 tumor cell line used in Figure 7, was transduced with either empty retrovirus or retroviruses encoding H2-K^b, H2-D^b or Tap1. After isolating homogeneously expressing cell lines, cells were transplanted into 5-member groups of wild type mice and tumor growth quantitated as described previously [adapted from (49)].