8GUK

Human nucleosome core particle (free form)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.51 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.1 of the entry. See complete history


Literature

Structure of the human Bre1 complex bound to the nucleosome.

Onishi, S.Uchiyama, K.Sato, K.Okada, C.Kobayashi, S.Hamada, K.Nishizawa, T.Nureki, O.Ogata, K.Sengoku, T.

(2024) Nat Commun 15: 2580-2580

  • DOI: https://doi.org/10.1038/s41467-024-46910-8
  • Primary Citation of Related Structures:  
    8GUI, 8GUJ, 8GUK

  • PubMed Abstract: 

    Histone H2B monoubiquitination (at Lys120 in humans) regulates transcription elongation and DNA repair. In humans, H2B monoubiquitination is catalyzed by the heterodimeric Bre1 complex composed of Bre1A/RNF20 and Bre1B/RNF40. The Bre1 proteins generally function as tumor suppressors, while in certain cancers, they facilitate cancer cell proliferation. To obtain structural insights of H2BK120 ubiquitination and its regulation, we report the cryo-electron microscopy structure of the human Bre1 complex bound to the nucleosome. The two RING domains of Bre1A and Bre1B recognize the acidic patch and the nucleosomal DNA phosphates around SHL 6.0-6.5, which are ideally located to recruit the E2 enzyme and ubiquitin for H2BK120-specific ubiquitination. Mutational experiments suggest that the two RING domains bind in two orientations and that ubiquitination occurs when Bre1A binds to the acidic patch. Our results provide insights into the H2BK120-specific ubiquitination by the Bre1 proteins and suggest that H2B monoubiquitination can be regulated by nuclesomal DNA flexibility.


  • Organizational Affiliation

    Department of Biochemistry, Yokohama City University Graduate School of Medicine, Yokohama, Japan.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H3.1
A, E
136Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P68431 (Homo sapiens)
Go to UniProtKB:  P68431
PHAROS:  P68431
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H4
B, F
102Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P62805 (Homo sapiens)
Go to UniProtKB:  P62805
PHAROS:  P62805
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2A type 1
C, G
129Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P0C0S8 (Homo sapiens)
Go to UniProtKB:  P0C0S8
PHAROS:  P0C0S8
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2B type 1-J
D, H
129Homo sapiensMutation(s): 0 
Gene Names: H2BC11H2BFRHIST1H2BJ
UniProt & NIH Common Fund Data Resources
Find proteins for P06899 (Homo sapiens)
Go to UniProtKB:  P06899
PHAROS:  P06899
GTEx:  ENSG00000124635 
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.51 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Japan Society for the Promotion of Science (JSPS)Japan--

Revision History  (Full details and data files)

  • Version 1.0: 2023-09-20
    Type: Initial release
  • Version 2.0: 2024-02-07
    Type: Coordinate replacement
    Reason: Atomic clashes
    Changes: Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2024-04-03
    Changes: Database references