Helios is an alias for the gene, IKAROS family zinc finger 2, in humans. Other names include: Zinc finger protein Helios; Ikaros family zinc finger protein 2; ANF1A2; HELIOS; IKAROS family zinc finger 2 (Helios); ZNF1A2; ZNFN1A2. The encoded protein has an amino acid length of 526 and a mass of 59.6 kDa. Other isoforms may exist. Helios is a member of the Ikaros C2H2-type zinc-finger protein family. This gene shares homology with other species, including: Mouse, Frog.