Patent ID: 7608701

Claim:
An isolated nucleic acid encoding a non-native peptide, wherein the non-native peptide comprises the sequence ZGPPISIDLPX 11 X 12 LLRKX 17 IEIEKQEKEKQQAX 31 X 32 NAX 35 X 36 LX 38 X 39 X 40 (SEQ ID NO: 531); wherein: X 11 is selected from F, Y, L, I, and T; X 12 is selected from Q, W, and Y; X 17 is selected from V and M; X 31 is selected from T and A; X 32 is selected from N and T; X 35 is selected from R and L; X 36 is selected from L and I; X 38 is selected from D and A; X 39 is selected from T and R; and X 40 is selected from I and V; and variants thereof having at least 95% sequence identity to said peptide.