Ligand-binding, dimerized polypeptide fusions comprising two polypeptide chains are disclosed. Each of the polypeptide chains comprises a ligand-binding domain of either a growth factor receptor or a hormone receptor joined to an immunoglobulin constant region polypeptide. Dimerization of the polypeptide...http://www.google.es/patents/US6323323?utm_source=gb-gplus-sharePatente US6323323 - Ligand-binding, dimerized polypeptide fusions
