Anti-PSBP1 antibodies enable researchers to detect and measure the PSBP1 antigen in biological samples. This target is a reported synonym of the SCGB2A2 gene, which encodes secretoglobin family 2A member 2. The human version of PSBP1 has a canonical amino acid length of 93 residues and a protein mass of 10.5 kilodaltons, although 2 isoforms have been identified. It is reported to be a secreted protein that is notably expressed in the skin, lactating breast, endometrium, cervix, and breast. PSBP1 is a member of the Secretoglobin protein family.