Structure of UHRF1 PHD finger in complex with histone H3K4me3 1-9 peptide

Experimental Data Snapshot

  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 

wwPDB Validation   3D Report Full Report

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PHD Finger Recognition of Unmodified Histone H3R2 Links UHRF1 to Regulation of Euchromatic Gene Expression.

Rajakumara, E.Wang, Z.Ma, H.Hu, L.Chen, H.Lin, Y.Guo, R.Wu, F.Li, H.Lan, F.Shi, Y.G.Xu, Y.Patel, D.J.Shi, Y.

(2011) Mol Cell 43: 275-284

  • DOI: https://doi.org/10.1016/j.molcel.2011.07.006
  • Primary Citation of Related Structures:  
    3SOU, 3SOW, 3SOX

  • PubMed Abstract: 

    Histone methylation occurs on both lysine and arginine residues, and its dynamic regulation plays a critical role in chromatin biology. Here we identify the UHRF1 PHD finger (PHD(UHRF1)), an important regulator of DNA CpG methylation, as a histone H3 unmodified arginine 2 (H3R2) recognition modality. This conclusion is based on binding studies and cocrystal structures of PHD(UHRF1) bound to histone H3 peptides, where the guanidinium group of unmodified R2 forms an extensive intermolecular hydrogen bond network, with methylation of H3R2, but not H3K4 or H3K9, disrupting complex formation. We have identified direct target genes of UHRF1 from microarray and ChIP studies. Importantly, we show that UHRF1's ability to repress its direct target gene expression is dependent on PHD(UHRF1) binding to unmodified H3R2, thereby demonstrating the functional importance of this recognition event and supporting the potential for crosstalk between histone arginine methylation and UHRF1 function.

  • Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
E3 ubiquitin-protein ligase UHRF1
A, B
70Homo sapiensMutation(s): 0 
Gene Names: ICBP90NP95RNF106UHRF1
EC: 6.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q96T88 (Homo sapiens)
Explore Q96T88 
Go to UniProtKB:  Q96T88
GTEx:  ENSG00000276043 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ96T88
Sequence Annotations
  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H3
C, D
9Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P68431 (Homo sapiens)
Explore P68431 
Go to UniProtKB:  P68431
PHAROS:  P68431
Entity Groups  
UniProt GroupP68431
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.95 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.205 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.622α = 90
b = 42.622β = 90
c = 183.489γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-03
    Type: Initial release
  • Version 1.1: 2017-11-08
    Changes: Refinement description
  • Version 1.2: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description