5MKW

Crystal structure of the human ZRANB3 HNH domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural insights into the function of ZRANB3 in replication stress response.

Sebesta, M.Cooper, C.D.O.Ariza, A.Carnie, C.J.Ahel, D.

(2017) Nat Commun 8: 15847-15847

  • DOI: 10.1038/ncomms15847
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Strategies to resolve replication blocks are critical for the maintenance of genome stability. Among the factors implicated in the replication stress response is the ATP-dependent endonuclease ZRANB3. Here, we present the structure of the ZRANB3 HNH ...

    Strategies to resolve replication blocks are critical for the maintenance of genome stability. Among the factors implicated in the replication stress response is the ATP-dependent endonuclease ZRANB3. Here, we present the structure of the ZRANB3 HNH (His-Asn-His) endonuclease domain and provide a detailed analysis of its activity. We further define PCNA as a key regulator of ZRANB3 function, which recruits ZRANB3 to stalled replication forks and stimulates its endonuclease activity. Finally, we present the co-crystal structures of PCNA with two specific motifs in ZRANB3: the PIP box and the APIM motif. Our data provide important structural insights into the PCNA-APIM interaction, and reveal unexpected similarities between the PIP box and the APIM motif. We propose that PCNA and ATP-dependency serve as a multi-layered regulatory mechanism that modulates ZRANB3 activity at replication forks. Importantly, our findings allow us to interpret the functional significance of cancer associated ZRANB3 mutations.


    Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA annealing helicase and endonuclease ZRANB3
A, B
122Homo sapiensMutation(s): 0 
Gene Names: ZRANB3
Find proteins for Q5FWF4 (Homo sapiens)
Go to Gene View: ZRANB3
Go to UniProtKB:  Q5FWF4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.192 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.841α = 90.00
b = 67.552β = 90.00
c = 92.161γ = 90.00
Software Package:
Software NamePurpose
xia2data scaling
PHASERphasing
xia2data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-12-05 
  • Released Date: 2017-06-28 
  • Deposition Author(s): Ariza, A.

Funding OrganizationLocationGrant Number
Cancer Research UKUnited Kingdom16304

Revision History 

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2017-08-30
    Type: Author supporting evidence
  • Version 1.2: 2019-10-09
    Type: Data collection