This gene encodes a member of the Ikaros family of zinc-finger proteins. Three members of this protein family (Ikaros, Aiolos and Helios) are hematopoietic-specific transcription factors involved in the regulation of lymphocyte development. This protein forms homo- or hetero-dimers with other Ikaros family members, and is thought to function predominantly in early hematopoietic development. Multiple transcript variants encoding different isoforms have been found for this gene, but the biological validity of some variants has not been determined.
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Tabayashi T, Ishimaru F, Takata M, Kataoka I, Nakase K, Kozuka T, Tanimoto M (Feb 2007). "Characterization of the short isoform of Helios overexpressed in patients with T-cell malignancies". Cancer Science. 98 (2): 182–8. doi:10.1111/j.1349-7006.2006.00372.x. PMID17297655.
Sun L, Kerawalla H, Wu X, Lehnert MS, Uckun FM (Apr 2002). "Expression of a unique helios isoform in human leukemia cells". Leukemia & Lymphoma. 43 (4): 841–9. doi:10.1080/10428190290016980. PMID12153174.
Nakase K, Ishimaru F, Fujii K, Tabayashi T, Kozuka T, Sezaki N, Matsuo Y, Harada M (Apr 2002). "Overexpression of novel short isoforms of Helios in a patient with T-cell acute lymphoblastic leukemia". Experimental Hematology. 30 (4): 313–7. doi:10.1016/S0301-472X(01)00796-2. PMID11937265.
Perdomo J, Holmes M, Chong B, Crossley M (Dec 2000). "Eos and pegasus, two members of the Ikaros family of proteins with distinct DNA binding activities". The Journal of Biological Chemistry. 275 (49): 38347–54. doi:10.1074/jbc.M005457200. PMID10978333.
Hosokawa Y, Maeda Y, Seto M (Oct 1999). "Human Helios, an Ikaros-related zinc finger DNA binding protein: cDNA cloning and tissue expression pattern". Immunogenetics. 50 (1–2): 106–8. doi:10.1007/s002510050696. PMID10541817.