Patent ID: 7241593

Claim:
An isolated fusion protein consisting of, from amino terminus to carboxyl terminus: a first PDGF-D growth factor domain polypeptide; a linker polypeptide; and a second PDGF-D growth factor domain polypeptide, wherein each of said first and second PDGF-D growth factor domain polypeptides consists of a sequence of amino acid residues as shown in SEQ ID NO:2 or SEQ ID NO:4 from amino acid x to amino acid y, wherein x is an integer from 246 to 258, inclusive, and y is an integer from 365 to 370, inclusive; wherein said linker polypeptide consists of from 11–40 amino acid residues; wherein said fusion protein is optionally glycosylated; and wherein said fusion protein is substantially free of other polypeptides or proteins.