Patent ID: 7892788

Claim:
A polypeptide of the general structural formula (I) X n —C 1 —X 1-50 —C 2 —X 0-5 —C 3 —X 1-100 —C 4 —X 1-100 —C 5 —X 1-50 —C 6 —X 0-5 —C 7 —X 1-50 C 8 —X m (I) wherein X is any of the 20 naturally occurring amino acids, n and m are numbers between 0 and 500, C is cysteine, with the proviso that at least one of the peptide sequences abbreviated as X n or X m is a peptide sequence of at least 20 amino acids in length that is not linked naturally to a hydrophobin and X n or X m comprises an amino acid sequence selected from SEQ ID NOs: 16 and 18, and wherein the polypeptide changes the contact angle of a drop of water on a glass surface by at least 20° after coating the glass surface with the polypeptide.