Patent ID: 8501680

Claim:
A cyclic polypeptide, its pharmacologically acceptable salts, derivatives, and/or conjugates, consisting of the formula (1): (SEQ ID NO: 1) C-X1-X2-YFYTS-X3-X4-X5-X6-X7-X8-X9-X10-X11-X12- X13-X14-X15-C (1) wherein: X1 is selected from the group consisting of: lysine, glutamine, arginine, histidine and asparagine, or an amino acid deletion; X2 is selected from the group consisting of: glutamic acid, aspartic acid and glutamine, or an amino acid deletion; X3 is selected from the group consisting of: glycine, serine and alanine; X4 is selected from the group consisting of: lysine, leucine and arginine; X5 is selected from the group consisting of: serine, cysteine, glycine and threonine; X6 is selected from the group consisting of: serine, glycine and threonine; X7 is selected from the group consisting of: asparagine and glutamine; X8 is selected from the group consisting of: proline, tyrosine and glycine; X9 is selected from the group consisting of: glycine, alanine and serine; X10 is selected from the group consisting of: isoleucine, valine and asparagine; X11 is selected from the group consisting of: valine, isoleucine and asparagine; X12 is selected from the group consisting of: phenylalanine, tyrosine, isoleucine, valine, leucine and methionine; X13 is selected from the group consisting of: isoleucine, valine, leucine, methionine and phenylalanine; X14 is selected from the group consisting of: threonine, glycine, alanine, serine and tyrosine; X15 is selected from the group consisting of: arginine, lysine, glutamine, histidine and asparagine, or an amino acid deletion.