Crystal structure of RPA70N-WRN fusion

Experimental Data Snapshot

  • Resolution: 1.60 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 

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Structural characterization of human RPA70N association with DNA damage response proteins.

Wu, Y.Fu, W.Zang, N.Zhou, C.

(2023) Elife 12

  • DOI: https://doi.org/10.7554/eLife.81639
  • Primary Citation of Related Structures:  
    7XUT, 7XUV, 7XUW, 7XV0, 7XV1, 7XV4, 8JZV, 8JZY, 8K00

  • PubMed Abstract: 

    The heterotrimeric Replication protein A (RPA) is the ubiquitous eukaryotic single-stranded DNA (ssDNA) binding protein and participates in nearly all aspects of DNA metabolism, especially DNA damage response. The N-terminal OB domain of the RPA70 subunit (RPA70N) is a major protein-protein interaction element for RPA and binds to more than 20 partner proteins. Previous crystallography studies of RPA70N with p53, DNA2 and PrimPol fragments revealed that RPA70N binds to amphipathic peptides that mimic ssDNA. NMR chemical-shift studies also provided valuable information on the interaction of RPA70N residues with target sequences. However, it is still unclear how RPA70N recognizes and distinguishes such a diverse group of target proteins. Here, we present high-resolution crystal structures of RPA70N in complex with peptides from eight DNA damage response proteins. The structures show that, in addition to the ssDNA mimicry mode of interaction, RPA70N employs multiple ways to bind its partners. Our results advance the mechanistic understanding of RPA70N-mediated recruitment of DNA damage response proteins.

  • Organizational Affiliation

    School of Public Health & Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Zhejiang, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
fusion protein of Replication protein A 70 kDa DNA-binding subunit and Werner syndrome ATP-dependent helicase
A, B
140Homo sapiensMutation(s): 0 
EC: (PDB Primary Data), 3.1 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P27694 (Homo sapiens)
Explore P27694 
Go to UniProtKB:  P27694
GTEx:  ENSG00000132383 
Find proteins for Q14191 (Homo sapiens)
Explore Q14191 
Go to UniProtKB:  Q14191
GTEx:  ENSG00000165392 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP27694Q14191
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.60 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.936α = 90
b = 58.609β = 90
c = 111.786γ = 90
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Ministry of Education (MoE, China)China--

Revision History  (Full details and data files)

  • Version 1.0: 2023-06-14
    Type: Initial release
  • Version 1.1: 2023-09-13
    Changes: Data collection, Database references
  • Version 1.2: 2023-11-29
    Changes: Refinement description
  • Version 1.3: 2024-05-08
    Changes: Database references