Patent attributes
The present invention relates to a polypeptide binding to human serum albumin and comprising or consisting of an amino acid sequence selected from the group consisting of: (a) GVTLFVALYDY(X1)(X2)(X3)(X4)(X5)(X6)D(X7)SFHKGEKFQIL(X8)(X9)(X10)(X11)(X12)G(X13)(X14)W(X15)(X16)RSLTTG(X17)(X18)G(X19)IPSNYVAPVDSIQ (SEQ ID NO: 1), wherein (X1) is A, V, I, L, M, G, P, S, T, N, Q, C, R, H, K, D or E; (X2) is R, H, K, A, V, I, L, M, G, P, S, T, N, Q or C; (X3) is R, H, K, S, T, N, Q, C, F, Y, W, A, V, I, L, M, G or P; (X4) is S, T, N, Q, C, A, V, I, L, M, G, P, R, H, K, F, Y, W, D or E; (X5) is S, T, N, Q, C, D, E, F, Y, W, A, V, I, L, M, G, P, R, H or K; (X6) is F, Y, W, A, V, I, L, M, G, P, R, H, K, S, T, N, Q or C; (X7) is A, V, I, L, M, G, P, R, H or K; (X8) is S, T, N, Q, C, D or E; (X9) is S, T, N, Q, C, D, E, A, V, I, L, M, G, P, F, Y or W; (X10) is A, V, I, L, M, G or P; (X11) is F, Y, W, R, H or K; (X12) is S, T, N, Q, C, F, Y or W; (X13) is F, Y, W, R, H, K, S, T, N, Q, C, D, E, A, V, I, L, M, G or P; (X14) is F, Y, W, A, V, I, L, M, G or P; (X15) is D, E, A, V, I, L, M, G or P; (X16) is A, V, I, L, M, G or P; (X17) is D, E, A, V, I, L, M, G, P, R, H or K; (X18) is S, T, N, Q, C, A, V, I, L, M, G or P; (X19) is F, Y, W S, T, N, Q or C; and (b) an amino acid sequence which is at least 90% identical to the amino acid sequence of (a), wherein the identity determination excludes amino acid positions (X1) to (X19).
