Patent ID: 8822638

Claim:
A peptide or peptide derivative comprising: (i) an amino acid sequence comprising imfwydcye (SEQ ID NO: 431); or (ii) a variant amino acid sequence comprising one, two, three, four, five or six amino acid substitutions in imfwydcye (SEQ ID NO: 431), said variant amino acid sequence comprising X 1 X 2 X 3 X 4 X 5 X 6 X 7 X 8 X 9 X 10 , wherein X 1 , when present, is c, s, y, i, D-Pen, C, t, D-Nva, D-Nle or k; X 2 is i, y, w or d; X 3 is c or m; X 4 is f, t, v or c; X 5 is w or c; X 6 is y or c; X 7 is d, e or f; X 8 is c, e, f, y or d; X 9 is y or w; and X 10 is e or i (SEQ ID NO: 433); wherein said peptide or peptide derivative has procoagulant activity.