Core-binding factor

spinqualitylabelsall models Human CBFα runt domain (magenta) complex with CBFβ heterodimerization domain (green) and DNA (PDB code 1h9d) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Function Core-binding factor (CBF) is a heterodimeric transcription factor which is composed of α chain which binds DNA and a regulatory β chain. CBF binds to various enhancers and promoters including murine leukemia virus and polyomavirus enhancer. Disease Mutations in CBF β are implicated in breast cancer. Rearrangements of CBF α and β genes are implicated in acute myeloid leukemia. Structural highlights CBF α contains a DNA-binding runt domain (residues 50-177).

3D Structures of core-binding factor

Updated on 29-March-2026

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• Core-binding factor α subunit
  • 1ean, 1ljm – hCBFα runt domain - human
    
  • 1cmo, 2n7b – hCBFα runt domain (mutant) - NMR
    
  • 1co1 – hCBFα runt domain - NMR
    
  • 1eao, 1eaq, 2j6w – mCBFα runt domain (mutant) - mouse
    
  • 1hjc – mCBFα runt domain + DNA
    
  • 1hjb – mCBFα runt domain + hEBP β + DNA
    
  • 4l0y, 4l0z, 4l18, 3wu1 – mCBFα runt domain + hETS1 + DNA
    
• Core-binding factor β subunit
  • 4n9f – hCBFb + cullin-5 + elongin-B + virion infectivity factor
    
  • 6p59 – hCBFb + elongin-B + elongin-C + virion infectivity factor
    
  • 6nil – hCBFb + A3F complex + virion infectivity factor – Cryo EM
    
  • 8e40, 8h0i, 8j62 – hCBFb + APOBEC + virion infectivity factor + RNA – Cryo EM
    
  • 8cx0, 8cx1, 8cx2 – hCBFb + elongin-B + elongin-C + APOBEC + virion infectivity factor + RNA – Cryo EM
    
  • 8fvi – hCBFb + APOBEC + virion infectivity factor + cullin 5 + RNA – Cryo EM
    
  • 8fvj – hCBFb + elongin-B + elongin-C + virion infectivity factor + cullin 5 – Cryo EM
    
  • 8szk – hCBFb + elongin-B + elongin-C + virion infectivity factor + cullin 5 + RNA – Cryo EM
    
  • 6vg2, 6vg8, 6vgd, 6vge, 6vgg – hCBFb + Runx2 + FLI1 + DNA
    
  • 1ilf – mCBFb
    
• Core-binding factor α+β subunits
  • 1e50 – hCBFα runt domain + hCBFβ heterodimerization domain
    
  • 1h9d – hCBFα runt domain + hCBFβ heterodimerization domain + DNA
    
  • 1io4 – mCBFα runt domain + mCBFβ core domain + hEBP β + DNA
    
  • 3wts – mCBFα runt domain (mutant) + mCBFβ heterodimerization domain + hETS1 + DNA
    
  • 3wtt, 3wtu, 3wtx, 3wty, 3wtv, 3wtw – mCBFα residues 60-263 (mutant) + mCBFβ heterodimerization domain + hETS1 + DNA
    

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