ID2 explained

DNA-binding protein inhibitor ID-2 is a protein that in humans is encoded by the ID2 gene.[1]

Function

The protein encoded by this gene belongs to the inhibitor of DNA binding (ID) family, members of which are transcriptional regulators that contain a helix-loop-helix (HLH) domain but not a basic domain. Members of the ID family inhibit the functions of basic helix-loop-helix transcription factors in a dominant-negative manner by suppressing their heterodimerization partners through the HLH domains. This protein may play a role in negatively regulating cell differentiation. A pseudogene has been identified for this gene.[2] The ID2 protein may play a role in the development and resistance to therapies of glioblastoma, the most aggressive of brain cancers.[3]

Interactions

ID2 has been shown to interact with MyoD[4] and NEDD9.[5]

See also

Further reading

Notes and References

  1. Hara E, Yamaguchi T, Nojima H, Ide T, Campisi J, Okayama H, Oda K . Id-related genes encoding helix-loop-helix proteins are required for G1 progression and are repressed in senescent human fibroblasts . The Journal of Biological Chemistry . 269 . 3 . 2139–2145 . January 1994 . 8294468 . 10.1016/S0021-9258(17)42146-6 . free .
  2. Web site: Entrez Gene: ID2 inhibitor of DNA binding 2, dominant negative helix-loop-helix protein.
  3. Lee SB, Frattini V, Bansal M, Castano AM, Sherman D, Hutchinson K, Bruce JN, Califano A, Liu G, Cardozo T, Iavarone A, Lasorella A . An ID2-dependent mechanism for VHL inactivation in cancer . Nature . 529 . 7585 . 172–177 . January 2016 . 26735018 . 5384647 . 10.1038/nature16475 . 2016Natur.529..172L .
  4. Langlands K, Yin X, Anand G, Prochownik EV . Differential interactions of Id proteins with basic-helix-loop-helix transcription factors . The Journal of Biological Chemistry . 272 . 32 . 19785–19793 . August 1997 . 9242638 . 10.1074/jbc.272.32.19785 . free .
  5. Law SF, Zhang YZ, Fashena SJ, Toby G, Estojak J, Golemis EA . Dimerization of the docking/adaptor protein HEF1 via a carboxy-terminal helix-loop-helix domain . Experimental Cell Research . 252 . 1 . 224–235 . October 1999 . 10502414 . 10.1006/excr.1999.4609 .