OnCo

CBFB (Core-binding factor subunit beta) is a gene whose normal job is to hold cell growth in check. The public catalogues list it as an oncogene driver, a tumour suppressor and a fusion partner, and it is called a cancer driver by mutation analysis of patient cohorts. Tied to Breast cancer. 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

Forms the heterodimeric complex core-binding factor (CBF) with RUNX family proteins (RUNX1, RUNX2, and RUNX3). RUNX members modulate the transcription of their target genes through recognising the core consensus binding sequence 5'-TGTGGT-3', or very rarely, 5'-TGCGGT-3', within their regulatory regions via their runt domain, while CBFB is a non-DNA-binding regulatory subunit that allosterically enhances the sequence-specific DNA-binding capacity of RUNX. The heterodimers bind to the core site of a number of enhancers and promoters, including murine leukaemia virus, polyomavirus enhancer, T-cell receptor enhancers, LCK, IL3 and GM-CSF promoters. CBF complexes repress ZBTB7B transcription factor during cytotoxic (CD8+) T cell development. They bind to RUNX-binding sequence within the ZBTB7B locus acting as transcriptional silencer and allowing for cytotoxic T cell differentiation. The complex can also ubiquitinate APOBEC3H to some extent. Location: Nucleus (UniProt). Locus 16q22.1 (HGNC).

Where it is found
  • Breast cancer: Open Targets association 0.70 with breast cancer (MONDO_0007254); IntOGen driver in 5 cohorts (BRCA)
Class: tumor suppressor · Gene: CBFB · 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:"CBFB" OR ABSTRACT:"CBFB" OR TITLE:"core-binding factor subunit beta" OR ABSTRACT:"core-binding factor subunit beta" OR TITLE:"Core-binding factor subunit beta" OR ABSTRACT:"Core-binding factor subunit beta" OR TITLE:"PEBP2B" OR ABSTRACT:"PEBP2B") 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 CBFB, 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/cbfb.json. Licence CC BY-NC 4.0.