主权项 |
1. An isolated peptide comprising the amino acid sequence of X1 X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 X17 X18,
wherein: X1 is K, H or R; X2 is H, R or K; X3 is G, A or P; X4 is L, R, I or V; X5 is Y, F or M; X6 is N or Q; X7 is L, V or I; X8 is K, R or H; X9 is Q, N or S; X10 is C; X11 is K, H or R; X12 is M, F, W or Y; X13 is S, T, N or Q; X14 is L, V or I; X15 is N, Q or S; X16 is G, A, S or P; X17 is Q, N, S or T; and X18 is R, K or H. |