Glycoprotein Hormones, alpha Subunit

**Definition:** 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.

**Tree numbers:** - D06.472.699.322.326.562 - D06.472.699.322.576.288.750 - D06.472.699.322.576.463.249 - D06.472.699.631.525.343.288.750 - D06.472.699.631.525.343.463.249 - D06.472.699.631.525.883.249 - D06.472.699.649.367.562 - D12.644.548.691.525.343.288.750 - D12.644.548.691.525.343.463.249 - D12.644.548.691.525.883.249 - D12.644.548.726.367.562

**Synonyms:** - Common alpha Subunit Glycoprotein Hormones - Follicle Stimulating Hormone, alpha Subunit - Follicle-Stimulating Hormone, alpha Subunit - FSH, alpha Subunit - FSH-alpha - Glycoprotein Hormones, alpha Chain - Glycoprotein Hormones, alpha Polypeptide - LH, alpha Subunit - Luteinizing Hormone, alpha Subunit - Lutotropin-alpha - Pituitary Glycoprotein Hormone, alpha Subunit - Thyroid-Stimulating Hormone, alpha Subunit - Thyrotropin alpha Subunit - TSH, alpha Subunit - TSH-alpha - ASGPH - Chorionic Gonadotropin, alpha Subunit - Chorionic Gonadotropin, alpha