Isolated DNAs (e.g., cDNAs or genomic fragments) encoding TGF-.beta. type I receptors, or soluble, ligand-binding fragments thereof; vectors or cells which contain such DNAs; and substantially pure polypeptides encoded by such DNAs, whether produced by expression of the isolated DNAs, by isolation from...http://www.google.co.uk/patents/US5538892?utm_source=gb-gplus-sharePatent US5538892 - Nucleic acids encoding a TGF-.beta. type 1 receptor
