Beta-ETF is an alias for the gene, Electron transfer flavoprotein beta subunit, in humans. Other names include: Electron transfer flavoprotein subunit beta; FP585; MADD; electron-transfer-flavoprotein, beta polypeptide. The encoded protein has an amino acid length of 255 and a mass of 27.8 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Fly, Rat, Zebrafish, Frog, Chicken.