OnCo

TCF3 (Transcription factor E2-alpha) is a protein that switches other genes on and off. The public catalogues list it as a biomarker and a fusion partner, and clinical evidence ties its variants to diagnosis, prognosis or drug response. Tied to Leukaemia, Non-Hodgkin lymphoma, Lung cancer and 3 more. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Transcriptional regulator involved in the initiation of neuronal differentiation and mesenchymal to epithelial transition. Heterodimers between TCF3 and tissue-specific basic helix-loop-helix (bHLH) proteins play major roles in determining tissue-specific cell fate during embryogenesis, like muscle or early B-cell differentiation. Together with TCF15, required for the mesenchymal to epithelial transition. Dimers bind DNA on E-box motifs: 5'-CANNTG-3'. Binds to the kappa-E2 site in the kappa immunoglobulin gene enhancer. Binds to IEB1 and IEB2, which are short DNA sequences in the insulin gene transcription control region. Location: Nucleus (UniProt). Locus 19p13.3 (HGNC).

Where it is found
  • Leukaemia: Open Targets association 0.61 with leukaemia (MONDO_0005059)
  • Non-Hodgkin lymphoma: Open Targets association 0.61 with non-Hodgkin lymphoma (MONDO_0018908)
  • Lung cancer: Open Targets association 0.53 with lung cancer (MONDO_0008903)
  • Burkitt lymphoma: CIViC evidence names this disease
  • Acute lymphoblastic leukaemia: Open Targets association 0.58 with acute lymphoblastic leukaemia (MONDO_0004967)
  • Non-small-cell lung cancer: Open Targets association 0.51 with non-small cell lung carcinoma (MONDO_0005233)
Class: transcription · Gene: TCF3 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

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Resistance routes

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Companion diagnostics

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Preclinical models

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Literature

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Query for this target: (TITLE:"TCF3" OR ABSTRACT:"TCF3" OR TITLE:"transcription factor 3" OR ABSTRACT:"transcription factor 3" OR TITLE:"Transcription factor E2-alpha" OR ABSTRACT:"Transcription factor E2-alpha" OR TITLE:"E2A" OR ABSTRACT:"E2A" OR TITLE:"ITF1" OR ABSTRACT:"ITF1" OR TITLE:"MGC129647" OR ABSTRACT:"MGC129647") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about TCF3, not a curated reading list.

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The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/tcf3.json. Licence CC BY-NC 4.0.