Crystal structure of human BRPF1 PZP bound to histone H3 tail

Experimental Data Snapshot

  • Resolution: 2.20 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.176 

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Molecular Basis for the PZP Domain of BRPF1 Association with Chromatin.

Klein, B.J.Cox, K.L.Jang, S.M.Cote, J.Poirier, M.G.Kutateladze, T.G.

(2020) Structure 28: 105-110.e3

  • DOI: https://doi.org/10.1016/j.str.2019.10.014
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The assembly of human histone acetyltransferase MOZ/MORF complexes relies on the scaffolding bromodomain plant homeodomain (PHD) finger 1 (BRPF1) subunit. The PHD-zinc-knuckle-PHD module of BRPF1 (BRPF1 PZP ) has been shown to associate with the histone H3 tail and DNA; however, the molecular mechanism underlying recognition of H3 and the relationship between the histone and DNA-binding activities remain unclear. In this study, we report the crystal structure of BRPF1 PZP bound to the H3 tail and characterize the role of the bipartite interaction in the engagement of BRPF1 PZP with the nucleosome core particle (NCP). We find that although both interactions of BRPF1 PZP with the H3 tail and DNA are required for tight binding to NCP and for acetyltransferase function of the BRPF1-MORF-ING5-MEAF6 complex, binding to extranucleosomal DNA dominates. Our findings suggest that functionally active BRPF1 PZP might be important in stabilization of the MOZ/MORF complexes at chromatin with accessible DNA.

  • Organizational Affiliation

    Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H3.3,BRPF1, Peregrin201Homo sapiensMutation(s): 0 
Gene Names: H3F3AH3.3AH3F3PP781H3F3BH3.3BBRPF1BR140
UniProt & NIH Common Fund Data Resources
Find proteins for P55201 (Homo sapiens)
Explore P55201 
Go to UniProtKB:  P55201
GTEx:  ENSG00000156983 
Find proteins for P84243 (Homo sapiens)
Explore P84243 
Go to UniProtKB:  P84243
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP84243P55201
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.20 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.176 
  • Space Group: P 61 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 72.461α = 90
b = 72.461β = 90
c = 155.297γ = 120
Software Package:
Software NamePurpose
HKL-2000data scaling
PDB_EXTRACTdata extraction
HKL-3000data reduction

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-11-27
    Type: Initial release
  • Version 1.1: 2020-01-22
    Changes: Database references
  • Version 1.2: 2023-10-11
    Changes: Data collection, Database references, Refinement description