Recognition by the QYDPVAALF-specific CD8⁺T-cell clone of the epitope in the context of the HLA-A*2402 molecules.

CTL assays were performed using ⁵¹Cr-labeled T2-A24 cells pulsed with QYDPVAALF (▪) or control EBV peptide TYGPVFMSL (▴) and using T2 cells pulsed with QYDPVAALF (■) or with the control peptide (▵) as target cells, incubated with CMV-specific CD8⁺ CTL clone no. 1 at the indicated effector-target ratios in the presence of 100 nM of each peptide.