<unk>  is a heterodimeric glycoprotein. Each monomeric unit is a glycoprotein molecule; one alpha and one beta subunit make the full, functional protein. Its structure is similar to that of the other glycoprotein<unk> s, follicle-stimulating<unk>  (FSH), thyroid-stimulating<unk>  (TSH), and human chorionic gonadotropin (hCG). The protein dimer contains 2 glycopeptidic subunits (labeled alpha- and beta- subunits) that are non-covalently associated: * The alpha subunits of<unk> , FSH, TSH, and hCG are identical, and contain 92 amino acids in human but 96 amino acids in almost all other vertebrate species (glycoprotein<unk> s do not exist in invertebrates). * The beta subunits vary.<unk>  has a beta subunit of 120 amino acids <unk> B) that confers its specific biologic action and is responsible for the specificity of the interaction with the<unk>  receptor. This beta subunit contains an amino acid sequence that exhibits large homologies with that of the beta subunit of hCG and both stimulate the same receptor. However, the hCG beta subunit contains an additional 24 amino acids, and the two<unk> s differ in the composition of their sugar moieties. The different composition of these oligosaccharides affects bioactivity and speed of degradation. The biologic half-life of<unk>  is 20 minutes, shorter than that of FSH (3–4 hours) and hCG (24 hours). The biological half-life of<unk>  is 23 hours subcutaneous or terminal half life of 10-12 hours.
Luteinizing hormone
Menotropin
Antigonadotropin
Gonadotropin
Progonadotropin
Prolene
Testolactone
Allyltestosterone