Patent ID: 7033794

Claim:
A peptide or protein comprising a basolateral sorting signal consisting of the amino acid sequence: X 1 h 2 X 3 h 4 Leup 5 p 6 (SEQ ID NO: 1), wherein: X 1 represents a glutamine acid (E), a glutamine (Q), or an alanine (A) residue, h 2 represents an isolueucine (I) or an alanine (A) residue, X 3 represents a serine (S), an alanine (A), or an aspartic acid (N) residue, h 4 represents a methionine (M) or an alanine (A) residue, p 5 represents a glutamine (Q) or asparagine (N) residue, and p 6 represents a glutamine (Q) or a glutamic acid (E) residue, and wherein said peptide or protein comprises up to 50 amino acids.