OVA (257-264)

SIINFEKL, an ovalbumin-derived peptide is known to arise from natural processing of ovalbumin H-2b mouse cells. Cytotoxic T lymphocytes (CTL) from the ovalbumin-hsp70-immunized mice and a highly effective CTL clone (4G3) raised against ovalbumin-expressing EL4 tumor cells (EG7-OVA) were equally effective in terms of the concentration of this compound required for half-maximal lysis in a CTL assay.