SUI1 is an alias for the gene, Eukaryotic translation initiation factor 1, in humans. Other names include: eIF1; A121; Protein translation factor SUI1 homolog; Sui1iso1; EIF-1; ISO1. The encoded protein has an amino acid length of 113 and a mass of 12.7 kDa. Other isoforms may exist. SUI1 is a member of the SUI1 family. This gene shares homology with other species, including: Mouse, Rat, Frog, Chicken.