3.4.23.B9 0.048 - KTKVFVVQPK P1-substituted peptide 681171 3.4.23.B9 0.063 - KTKVLPVQPK P1'-substituted peptide 681171 3.4.23.B9 0.13 - KTKVLKVQPK P1'-substituted peptide 681171 3.4.23.B9 0.18 - KTKVLVVQPK mutant N38D 681171 3.4.23.B9 0.2 - KTKGLVVQPK P2-substituted peptide 681171