5GK9

Crystal structure of human HBO1 in complex with BRPF2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.260 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

Structural and mechanistic insights into regulation of HBO1 histone acetyltransferase activity by BRPF2.

Tao, Y.Zhong, C.Zhu, J.Xu, S.Ding, J.

(2017) Nucleic Acids Res 45: 5707-5719

  • DOI: https://doi.org/10.1093/nar/gkx142
  • Primary Citation of Related Structures:  
    5GK9

  • PubMed Abstract: 

    HBO1, a member of the MYST family of histone acetyltransferases (HATs), is required for global acetylation of histone H3K14 and embryonic development. It functions as a catalytic subunit in multisubunit complexes comprising a BRPF1/2/3 or JADE1/2/3 scaffold protein, and two accessory proteins. BRPF2 has been shown to be important for the HAT activity of HBO1 toward H3K14. Here we demonstrated that BRPF2 can regulate the HAT activity of HBO1 toward free H3 and H4, and nucleosomal H3. Particularly, a short N-terminal region of BRPF2 is sufficient for binding to HBO1 and can potentiate its activity toward H3K14. The crystal structure of the HBO1 MYST domain in complex with this segment of BRPF2 together with the biochemical and cell biological data revealed the key residues responsible for the HBO1-BRPF2 interaction. Our structural and functional data together indicate that the N-terminal region of BRPF2 plays an important role in the binding of HBO1 and a minor role in the binding of nucleosomes, which provide new mechanistic insights into the regulation of the HAT activity of HBO1 by BRPF2.


  • Organizational Affiliation

    National Center for Protein Science Shanghai, State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, and University of Chinese Academy of Sciences, Chinese Academy of Sciences, 320 Yue-Yang Road, Shanghai 200031, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone acetyltransferase KAT7276Homo sapiensMutation(s): 0 
Gene Names: KAT7HBO1HBOaMYST2
EC: 2.3.1.48
UniProt & NIH Common Fund Data Resources
Find proteins for O95251 (Homo sapiens)
Explore O95251 
Go to UniProtKB:  O95251
PHAROS:  O95251
GTEx:  ENSG00000136504 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO95251
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
BRD1 protein50Homo sapiensMutation(s): 0 
Gene Names: BRD1
UniProt & NIH Common Fund Data Resources
Find proteins for O95696 (Homo sapiens)
Explore O95696 
Go to UniProtKB:  O95696
PHAROS:  O95696
GTEx:  ENSG00000100425 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO95696
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.260 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 126.47α = 90
b = 39.321β = 122.1
c = 87.666γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
HKL-2000data scaling
REFMACrefinement
PDB_EXTRACTdata extraction
PHENIXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-29
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references
  • Version 1.2: 2023-11-08
    Changes: Data collection, Database references, Refinement description