Chorionic Gonadotropin, beta Subunit, Human definition

Chorionic Gonadotropin, beta Subunit, Human
Chorionic Gonadotropin, beta Chain, Human; Chorionic Gonadotropin, beta Polypeptide, Human; HCG, beta Subunit; HCG beta
The beta subunit of human CHORIONIC GONADOTROPIN. Its structure is similar to the beta subunit of LUTEINIZING HORMONE, except for the additional 30 amino acids at the carboxy end with the associated carbohydrate residues. HCG-beta is used as a diagnostic marker for early detection of pregnancy, spontaneous abortion (ABORTION, SPONTANEOUS); ECTOPIC PREGNANCY; HYDATIDIFORM MOLE; CHORIOCARCINOMA; or DOWN SYNDROME.