KIFGSLAFL is a linear peptidic epitope studied as part of Receptor tyrosine-protein kinase erbB-2 from Rattus norvegicus (brown rat) and Receptor tyrosine-protein kinase erbB-2 from Homo sapiens (human).ï¾ This epitope has been studied for immune reactivity, tested in T cell assays and MHC ligand assays HER-2/neu 369-377 peptide KIFGSLAFL (HLA-A*02:01) for stimulation of T-cells. Single peptide (KIFGSLAFL) for stimulation of human Her-2/neu-specific CD8+ T-cells.