ENT2 is an alias for the gene, Solute carrier family 29 (equilibrative nucleoside transporter), member 2, in humans. Other names include: Equilibrative nucleoside transporter 2; Delayed-early response protein 12; Equilibrative nitrobenzylmercaptopurine riboside-insensitive nucleoside transporter; Equilibrative NBMPR-insensitive nucleoside transporter; Hydrophobic nucleolar protein, 36 kDa; Nucleoside transporter, ei-type; Solute carrier family 29 member 2; 36 kDa nucleolar protein HNP36; DER12; HNP36. The encoded protein has an amino acid length of 456 and a mass of 50.1 kDa. Other isoforms may exist. ENT2 is a member of the SLC29A/ENT transporter (TC 2.A.57) family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog.