Patent ID: 7094761

Claim:
A substantially pure peptide compound of Formula I: Z 1 -His-Ile-Ile-Cys-Ser-Pro-Leu-Arg-Z 2 I wherein: Formula I comprises a domain of SEQ ID NO: 4; Z 1 is an N-terminal group of the formula H 2 N—, RHN— or, RRN—; Z 2 is a C-terminal group of the formula —C(O)OH, —C(O)R, —C(O)OR, —C(O)NHR, —C(O)NRR; R at each occurrence is independently selected from (C 1 –C 6 ) alkyl, (C 1 –C 6 ) alkenyl, (C 1 –C 6 ) alkynyl, substituted (C 1 –C 6 ) alkyl, substituted (C 1 –C 6 ) alkenyl, or substituted (C 1 –C 6 ) alkynyl; and “-” is a covalent linkage.