Antibodies against tyrosine kinase receptor flk-1

摘要: Isolated mammalian nucleic acid molecules encoding receptor protein tyrosine kinases expressed in primitive hematopoietic cells and not mature are provided. Also included the receptors encoded by such molecules; having sequences shown FIG. 1a (murine flk-2), 1b (human flk-2) 2 flk-1); amino 1a, 2; ligands for receptors; that encode ligands; methods of stimulating proliferation and/or differentiation stem comprising contacting with a ligand binds to kinase cells.