Patent ID: 7108995

Claim:
An isolated polypeptide having the following formula: X1-X2-X3-X4-X5-X6-X7-X8-X9, wherein: X1 is absent or represents an amino acid selected from the group consisting of non-charged polar amino acids and non-polar amino acids, X2 is absent or represents an amino acid selected from the group consisting of acidic amino acids, non-charged polar amino acids and non-polar amino acids, X3 is selected from the group consisting of basic amino acids, non-charged polar amino acids and non-polar amino acids, X4 is W, X5 represents an amino acid selected from the group consisting of A, V, L, I, P, W, M and C, X6 is selected from the group consisting of non-polar amino acids, X7 is a basic amino acid X8 is selected from the group consisting of basic amino acids and non-charged polar amino acids and X9 is absent or represents an amino acid selected from the group consisting of basic amino acids and non-polar amino acids.