Patent ID: 6979554

Claim:
An isolated polypeptide, consisting of a sequence with the following formula: X-RL1-N 1 -RL2-M-RL3-N 2 -RL4-N 3 -RL5-RL6-Y wherein N 1 to N 3 each independently represent 1 to 4, independently selected, natural or non-natural, amino acids and wherein M is a peptide consisting of 1 to 100 natural or non-natural amino acids; wherein RL1, RL2, and RL3 are independently selected from Lys, Arg or Orn; RL4 and RL6 are independently selected from Asp or Glu; and RL5 is independently selected from Ser, Thr, Asp, or Glu; and wherein X is a sequence of 9–11 amino acids and Y is a sequence of 14–19 amino acids.