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ASGPH

The alpha chain of pituitary Glycoprotein Hormones (Thyrotropin; Follicle Stimulating Hormone; Luteinizing Hormone) and the placental Chorionic Gonadotropin. Within a species, the alpha subunits of these four Hormones are identical; the distinct functional characteristics of these Glycoprotein Hormones are determined by the unique beta subunits. Both subunits, the non-covalently bound heterodimers, are required for full biologic activity.