OnCo

AFF3 (AF4/FMR2 family member 3) is a protein that switches other genes on and off. The public catalogues list it as an oncogene driver and a tumour suppressor, and it is called a cancer driver by mutation analysis of patient cohorts. Tied to Breast cancer, Thyroid cancer, Skin cancer and 4 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

Putative transcription activator that may function in lymphoid development and oncogenesis. Binds, in vitro, to double-stranded DNA. Location: Nucleus (UniProt). Locus 2q11.2 (HGNC).

Where it is found
  • Breast cancer: Open Targets association 0.58 with breast cancer (MONDO_0007254)
  • Thyroid cancer: IntOGen driver in 1 cohort (WDTC)
  • Skin cancer: Open Targets association 0.55 with skin cancer (MONDO_0002898)
  • Lung cancer: Open Targets association 0.55 with lung cancer (MONDO_0008903)
  • Gastric & gastro-oesophageal junction cancer: Open Targets association 0.52 with gastric cancer (MONDO_0001056)
  • Non-small-cell lung cancer: IntOGen driver in 1 cohort (LUAD)
Class: transcription · Gene: AFF3 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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No trial in the corpus names this target or one of its products.

Resistance routes

Unaddressed routes →

The resistance atlas has no route that names this target.

No pathway diagram carries this target as a node.

Companion diagnostics

Assay registry →

No companion diagnostic in the registry measures this target.

Preclinical models

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No model entry for this target yet; check the cancer entries on the models page.

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Literature

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Query for this target: (TITLE:"AFF3" OR ABSTRACT:"AFF3" OR TITLE:"ALF transcription elongation factor 3" OR ABSTRACT:"ALF transcription elongation factor 3" OR TITLE:"AF4/FMR2 family member 3" OR ABSTRACT:"AF4/FMR2 family member 3" OR TITLE:"MLLT2-like" OR ABSTRACT:"MLLT2-like" OR TITLE:"LAF4" OR ABSTRACT:"LAF4") 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 AFF3, not a curated reading list.

Export

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/aff3.json. Licence CC BY-NC 4.0.