Recognition of EBV-LCL, PHA blasts, and fibroblasts derived from single donors by four different CD8⁺ minor H antigen-specific CTL clones. EBV-LCL, PHA blasts, and fibroblasts derived from minor H antigen-positive individuals were used as targets in ⁵¹Cr release assays at E:T 20:1 for (A) HLA-A2–restricted clone PAM-13, (B) HLA-A2–restricted clone ATT-1, (C) HLA-A3–restricted clone DRN-7, and (D) HLA-B53–restricted clone DJG-24.