Anti-SCGB1D1 antibodies are used in the immunodetection of the protein secretoglobin family 1D member 1. In humans, the canonical protein has a reported length of 90 amino acid residues and a mass of 9.9 kDa. It has been described to be a secreted protein. It is reported to be expressed in lachrymal gland, thymus, kidney, testis, ovary and salivary gland. A member of the Secretoglobin protein family, SCGB1D1 is believed to bind androgens and other steroids, may also bind estramustine, a chemotherapeutic agent used for prostate cancer. Synonyms for this target antigen include LPHA, LPNA, lipophilin A (uteroglobin family member), lipophilin-A, prostatein-like lipophilin A, and LIPA. SCGB1D1 gene orthologs have been reported in the rat and chimpanzee species.