ID3 (gene) explained

DNA-binding protein inhibitor ID-3 is a protein that in humans is encoded by the ID3 gene.[1] [2]

Function

Members of the ID family of helix-loop-helix (HLH) proteins lack a basic DNA-binding domain and inhibit transcription through formation of nonfunctional dimers that are incapable of binding to DNA.[supplied by OMIM]

Interactions

ID3 (gene) has been shown to interact with TCF3.[3] [4]

Repressors of ID3

BTG2 binds to the promoter of Id3 and represses its activity. By this mechanism, the upregulation of Id3 in the hippocampus caused by BTG2 ablation prevents terminal differentiation of hippocampal neurons.[5]

See also

Further reading

Notes and References

  1. Ellmeier W, Aguzzi A, Kleiner E, Kurzbauer R, Weith A . Mutually exclusive expression of a helix-loop-helix gene and N-myc in human neuroblastomas and in normal development . EMBO J. . 11 . 7 . 2563–71 . Aug 1992 . 1628620 . 556731 . 10.1002/j.1460-2075.1992.tb05321.x.
  2. Web site: Entrez Gene: ID3 inhibitor of DNA binding 3, dominant negative helix-loop-helix protein.
  3. Deed RW, Jasiok M, Norton JD . Lymphoid-specific expression of the Id3 gene in hematopoietic cells. Selective antagonism of E2A basic helix-loop-helix protein associated with Id3-induced differentiation of erythroleukemia cells . J. Biol. Chem. . 273 . 14 . 8278–86 . Apr 1998 . 9525934 . 10.1074/jbc.273.14.8278 . free .
  4. Langlands K, Yin X, Anand G, Prochownik EV . Differential interactions of Id proteins with basic-helix-loop-helix transcription factors . J. Biol. Chem. . 272 . 32 . 19785–93 . Aug 1997 . 9242638 . 10.1074/jbc.272.32.19785 . free .
  5. Farioli-Vecchioli S, Saraulli D, Costanzi M, Leonardi L, Cinà I, Micheli L, Nutini M, Longone P, Oh SP, Cestari V, Tirone F . Impaired terminal differentiation of hippocampal granule neurons and defective contextual memory in PC3/Tis21 knockout mice . PLOS ONE . 4 . 12 . e8339 . 2009 . 20020054 . 2791842 . 10.1371/journal.pone.0008339 . 2009PLoSO...4.8339F . Okazawa . Hitoshi . free .