Tu translation elongation factor, mitochondrial is a human gene encoded by the symbol, TUFM. It may also be known as: Elongation factor Tu, mitochondrial; P43; EF-Tu; COXPD4; EF-TuMT; EFTU. The encoded protein has an amino acid length of 452 and a mass of 49.5 kDa. Other isoforms may exist. Tu translation elongation factor, mitochondrial is a member of the TRAFAC class translation factor GTPase superfamily, Classic translation factor GTPase family, EF-Tu/EF-1A subfamily. Homologs of this gene exist in other organisms, including: Fly.