TCF3

TCF3

TCF3

Protein-coding gene in the species Homo sapiens

Transcription factor 3 (E2A immunoglobulin enhancer-binding factors E12/E47), also known as TCF3, is a protein that in humans is encoded by the TCF3 gene.[5][6][7] TCF3 has been shown to directly enhance Hes1 (a well-known target of Notch signaling) expression.[8]

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Function

This gene encodes a member of the E protein (class I) family of helix-loop-helix transcription factors. The 9aaTAD transactivation domains of E proteins and MLL are very similar and both bind to the KIX domain of general transcriptional mediator CBP.[9][10] E proteins activate transcription by binding to regulatory E-box sequences on target genes as heterodimers or homodimers, and are inhibited by heterodimerization with inhibitor of DNA-binding (class IV) helix-loop-helix proteins. E proteins play a critical role in lymphopoiesis, and the encoded protein is required for the B and T lymphocyte development.[5]

This gene regulates many developmental patterning processes such as lymphocyte and central nervous system (CNS) development. E proteins are involved in the development of lymphocytes.[11] They initiate transcription by binding to regulatory E-box sequences on target genes.

Clinical significance

Deletion of this gene or diminished activity of the encoded protein may play a role in lymphoid malignancies. This gene is also involved in several chromosomal translocations that are associated with lymphoid malignancies including pre-B-cell acute lymphoblastic leukemia (t(1;19), with PBX1 and t(17;19), with HLF),[12] childhood leukemia (t(19;19), with TFPT) and acute leukemia (t(12;19), with ZNF384).[5]

Interactions

TCF3 has been shown to interact with:

References

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    GRCh38: Ensembl release 89: ENSG00000071564 – Ensembl, May 2017
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    GRCm38: Ensembl release 89: ENSMUSG00000020167 – Ensembl, May 2017
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    "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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    "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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    "Entrez Gene: TCF3".
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    Henthorn P, McCarrick-Walmsley R, Kadesch T (Feb 1990). "Sequence of the cDNA encoding ITF-1, a positive-acting transcription factor". Nucleic Acids Research. 18 (3): 677. doi:10.1093/nar/18.3.677. PMC 333499. PMID 2308859.
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    E proteins and Notch signaling cooperate to promote T cell lineage specification and commitment
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    Piskacek, S (2007). "Nine-amino-acid transactivation domain: Establishment and prediction utilities". Genomics. 89 (6): 756–768. doi:10.1016/j.ygeno.2007.02.003. PMID 17467953.
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    Piskacek, Martin; Vasku, A; Hajek, R; Knight, A (2015). "Shared structural features of the 9aaTAD family in complex with CBP". Mol. Biosyst. 11 (3): 844–851. doi:10.1039/c4mb00672k. PMID 25564305.
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Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

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