<unk>  is a 35.5 kDa glycoprotein heterodimer, consisting of two polypeptide units, alpha and beta. Its structure is similar to those of luteinizing hormone (LH), thyroid-stimulating hormone (TSH), and human chorionic gonadotropin (hCG). The alpha subunits of the glycoproteins LH,<unk> , TSH, and hCG are identical and consist of 96 amino acids, while the beta subunits vary. Both subunits are required for biological activity.<unk>  has a beta subunit of 111 amino acids <unk>  β), which confers its specific biologic action, and is responsible for interaction with the<unk>  receptor. The sugar portion of the hormone is covalently bonded to asparagine, and is composed of N-acetylgalactosamine, mannose, N-acetylglucosamine, galactose, and sialic acid.
Follicle-stimulating hormone
Thyroid-stimulating hormone
Parathyroid hormone-related protein
Parathyroid hormone
Cortisol
Calcitonin
Gonadotropin
Human chorionic gonadotropin