Anti-LST-3TM12 antibodies enable researchers to detect and measure the LST-3TM12 antigen in biological samples. This target is a reported synonym of the SLCO1B3-SLCO1B7 gene, which encodes SLCO1B3-SLCO1B7 readthrough. This protein is known to function in the metabolism of lipids, among other biological roles. The human version of LST-3TM12 has a canonical amino acid length of 687 residues and a protein mass of 76.3 kilodaltons, although 4 isoforms have been identified. It is reported to be localized in the ER and cell membrane of cells. LST-3TM12 is a member of the Organo anion transporter (TC 2.A.60) protein family.