CMyc is an alias for the gene, V-myc avian myelocytomatosis viral oncogene homolog, in humans. Other names include: Myc proto-oncogene protein; Class E basic helix-loop-helix protein 39; bHLHe39; Proto-oncogene c-Myc; Transcription factor p64; MRTL; MYCC; c-Myc. The encoded protein has an amino acid length of 439 and a mass of 48.8 kDa. Other isoforms may exist. This gene shares homology with other species, including: Fly, Mouse, Rat, Zebrafish, Frog, Chicken.