SLC28A3 encodes the human gene, Solute carrier family 28 (concentrative nucleoside transporter), member 3. It may also be known as: Solute carrier family 28 member 3; CNT 3; hCNT3; -nucleoside cotransporter 3; CNT3. The encoded protein has an amino acid length of 691 and a mass of 76.9 kDa. Other isoforms may exist. SLC28A3 is a member of the Concentrative nucleoside transporter (CNT) (TC 2.A.41) family. Homologs of this gene exist in other organisms, including: Mouse, Rat, Frog, Chicken.