Recombinant proteins for solute carrier family 22 member 9 are available from various sources. In humans, this protein has a Uniprot ID of Q8IVM8 and has an annotated function: 'Sodium-independent organic anion transporter which exhibits high specificity for sulfated conjugates of xenobiotics and steroid hormones.' This protein is 553 amino acids in length and 62.2 kilodaltons in mass. It has been designated a subcellular localization as: cell membrane. This protein is encoded by the gene SLC22A9. Other names also exist, such as: solute carrier family 22 member 9, organic anion transporter 4, organic anion transporter 7, solute carrier family 22 (organic anion transporter), member 9, solute carrier family 22 (organic anion/cation transporter), member 9. As many as 2 isoforms have been named. This protein is conserved in other species, including: mouse, rat.