Anti-MGB2 antibodies are used in antigen-specific immunodetection in biological samples. The target MGB2 is a known alias name of the protein secretoglobin family 2A member 1, encoded by the SCGB2A1 gene in humans. This 95-amino acid residue protein is believed to bind androgens and other steroids, may also bind estramustine, a chemotherapeutic agent used for prostate cancer. The protein is secreted and features glycosylated post-translational modifications. In terms of tissue expression, it is reported to be expressed in thymus, trachea, kidney, steroid responsive tissues (prostate, testis, uterus, breast and ovary) and salivary gland. Other synonyms for MGB2 include LPHC, LPHC, and LPNC.