Patent ID: 8084579

Claim:
A composition comprising a purified collagen-like polypeptide suitable as a peptizer, said polypeptide comprising consecutive [Gly-X-Y] repeats, wherein Gly stands for glycine, X and Y represent any amino acid and selected such that the length of the consecutive [Gly-X-Y] repeats being such that its weight on amino acid basis is at least 2.5 kDa and wherein the amino acid sequence of said polypeptide comprises more than 4 different amino acids and wherein said purified polypeptide is free of helix structure, and wherein said polypeptide is free of all the sequences LXXR (SEQ ID NO:51), IXXR (SEQ ID NO:52), VXXR (SEQ ID NO:53), MXXR (SEQ ID NO:54) and MGPR (SEQ ID NO: 14) and said polypeptide having a molecular weight on amino acid basis of at least 10 kDa.