actbb antibody, actbetaB antibody, inhibin antibody, inhibin, beta B antibody, inhibin beta B L homeolog antibody, inhibin beta B subunit antibody, inhibin beta B antibody, inhibin beta-B antibody, inhibin beta B chain antibody, inhbb antibody, inhbb.L antibody, INHBB antibody, Inhbb antibody, LOC100719829 antibody
Background
The inhibin beta B subunit joins the alpha subunit to form a pituitary FSH secretion inhibitor. Inhibin has been shown to regulate gonadal stromal cell proliferation negatively and to have tumour-suppressor activity. In addition, serum levels of inhibin have been shown to reflect the size of granulosa-cell tumors and can therefore be used as a marker for primary as well as recurrent disease. Because expression in gonadal and various extragonadal tissues may vary severalfold in a tissue-specific fashion, it is proposed that inhibin may be both a growth/differentiation factor and a hormone. Furthermore, the beta B subunit forms a homodimer, activin B, and also joins with the beta A subunit to form a heterodimer, activin AB, both of which stimulate FSH secretion.Synonyms: Activin B, Activin beta-B chain