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Cytotoxic T lymphocyte epitopes shared between HIV-1, HIV-2, and SIV.

A peptide epitope from the gag protein of SIV and from HIV-1 is described which is presented by a cynomolgus macaque MHC molecule and with HLA B14. Comparisons were drawn between recognition of this peptide and that of a second peptide defined in SIV and HIV-2 which has been reported to be presented by the rhesus macaque molecule MaMuA01 and HLA B53 respectively.