SLC25A31 is a symbol for the gene, Solute carrier family 25 (mitochondrial carrier; adenine nucleotide translocator), member 31, in humans. Other names include: ADP/ATP translocase 4; Adenine nucleotide translocator 4; ANT 4; Solute carrier family 25 member 31; Sperm flagellar energy carrier protein; ADP,ATP carrier protein 4; AAC4; ANT4; SFEC35kDa. The encoded protein has an amino acid length of 315 and a mass of 35.0 kDa. Other isoforms may exist. SLC25A31 is a member of the Mitochondrial carrier (TC 2.A.29) family. This gene shares homology with other species, including: Mouse.