OnCo

ARID5B (AT-rich interactive domain-containing protein 5B) is a protein that switches other genes on and off. In the public catalogues the evidence so far is association rather than a proven role. Tied to Leukaemia, Non-Hodgkin lymphoma and Acute lymphoblastic leukaemia. 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

Transcription coactivator that binds to the 5'-AATA[CT]-3' core sequence and plays a key role in adipogenesis and liver development. Acts by forming a complex with phosphorylated PHF2, which mediates demethylation at Lys-336, leading to target the PHF2-ARID5B complex to target promoters, where PHF2 mediates demethylation of dimethylated 'Lys-9' of histone H3 (H3K9me2), followed by transcription activation of target genes. The PHF2-ARID5B complex acts as a coactivator of HNF4A in liver. Required for adipogenesis: regulates triglyceride metabolism in adipocytes by regulating expression of adipogenic genes. Overexpression leads to induction of smooth muscle marker genes, suggesting that it may also act as a regulator of smooth muscle cell differentiation and proliferation. Represses the cytomegalovirus enhancer. Location: Nucleus (UniProt). Locus 10q21.2 (HGNC).

Where it is found
  • Leukaemia: Open Targets association 0.60 with leukaemia (MONDO_0005059)
  • Non-Hodgkin lymphoma: Open Targets association 0.60 with non-Hodgkin lymphoma (MONDO_0018908)
  • Acute lymphoblastic leukaemia: Open Targets association 0.60 with acute lymphoblastic leukaemia (MONDO_0004967)
Class: transcription · Gene: ARID5B · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

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Companion diagnostics

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Literature

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Query for this target: (TITLE:"ARID5B" OR ABSTRACT:"ARID5B" OR TITLE:"AT-rich interaction domain 5B" OR ABSTRACT:"AT-rich interaction domain 5B" OR TITLE:"AT-rich interactive domain-containing protein 5B" OR ABSTRACT:"AT-rich interactive domain-containing protein 5B" OR TITLE:"FLJ21150" OR ABSTRACT:"FLJ21150" OR TITLE:"MRF2" OR ABSTRACT:"MRF2") 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 ARID5B, 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/arid5b.json. Licence CC BY-NC 4.0.