Anti-impt-1 antibodies enable researchers to detect and measure the impt-1 antigen in biological samples. This target is a reported synonym of the SLC22A18 gene, which encodes solute carrier family 22 member 18. This protein is known to function in the transport of ions, among other biological roles. The human version of impt-1 has a canonical amino acid length of 424 residues and a protein mass of 44.8 kilodaltons. It is reported to be localized in the cell membrane of cells and notably expressed in many tissues, such as the bronchus and duodenum. impt-1 is a member of the Organic cation transporter (TC 2.A.1.19) protein family.