title: Purification of human epidermal growth factor (urogastrone) from urine.
abstract: Human epidermal growth factor has been isolated from a concentrated chromatographic eluate of human urine. The purification method utilizes six chromatographic steps including adsorption to aminoethylcellulose (AE-11), gel filtration on Sephadex G-50, carboxymethylcellulose (CM-52) chromatography, ion-exchange HPLC and reverse-phase HPLC. The final product appears homogeneous and identical to pure gamma-urogastrone when analyzed by polyacrylamide gel electrophoresis and reverse-phase HPLC using two eluent systems. The yield of the method described above allowed the development of a sensitive radioimmunoassay system for this growth factor.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D002462:Cell Membrane / Q000378:metabolism; D002850:Chromatography, Gel / Q000379:methods; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002852:Chromatography, Ion Exchange / Q000379:methods; D004591:Electrophoresis, Polyacrylamide Gel; D004815:Epidermal Growth Factor / Q000302:isolation & purification / Q000378:metabolism / Q000652:urine*; D066246:ErbB Receptors / Q000378:metabolism; D005260:Female; D006801:Humans; D007700:Kinetics; D051379:Mice; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy; D011863:Radioimmunoassay
chemical_list: D004815:Epidermal Growth Factor; D066246:ErbB Receptors