title: Nature of the difference in apparent molecular weights between the alpha subunit of urinary human chorionic gonadotropin and the alpha protein secreted by HeLa cells.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006063:Chorionic Gonadotropin / Q000096:biosynthesis* / Q000652:urine; D002850:Chromatography, Gel; D005260:Female; D006367:HeLa Cells / Q000378:metabolism*; D006801:Humans; D008970:Molecular Weight; D009363:Neoplasm Proteins / Q000096:biosynthesis*; D010446:Peptide Fragments / Q000096:biosynthesis; D011247:Pregnancy
chemical_list: D006063:Chorionic Gonadotropin; D009363:Neoplasm Proteins; D010446:Peptide Fragments