Estrogen Induced Gene 121 is an alias for the gene, KIAA1324, in humans. Other names include: UPF0577 protein KIAA1324; Estrogen-induced gene 121 protein; estrogen induced gene 121; EIG121. The encoded protein has an amino acid length of 1013 and a mass of 111.4 kDa. Other isoforms may exist. Estrogen Induced Gene 121 is a member of the UPF0577 family. This gene shares homology with other species, including: Frog.