4QBN

VRR_NUC domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

FAN1 activity on asymmetric repair intermediates is mediated by an atypical monomeric virus-type replication-repair nuclease domain.

Pennell, S.Declais, A.C.Li, J.Haire, L.F.Berg, W.Saldanha, J.W.Taylor, I.A.Rouse, J.Lilley, D.M.Smerdon, S.J.

(2014) Cell Rep 8: 84-93

  • DOI: 10.1016/j.celrep.2014.06.001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • FAN1 is a structure-selective DNA repair nuclease with 5' flap endonuclease activity, involved in the repair of interstrand DNA crosslinks. It is the only eukaryotic protein with a virus-type replication-repair nuclease ("VRR-Nuc") "module" that comm ...

    FAN1 is a structure-selective DNA repair nuclease with 5' flap endonuclease activity, involved in the repair of interstrand DNA crosslinks. It is the only eukaryotic protein with a virus-type replication-repair nuclease ("VRR-Nuc") "module" that commonly occurs as a standalone domain in many bacteria and viruses. Crystal structures of three representatives show that they structurally resemble Holliday junction resolvases (HJRs), are dimeric in solution, and are able to cleave symmetric four-way junctions. In contrast, FAN1 orthologs are monomeric and cleave 5' flap structures in vitro, but not Holliday junctions. Modeling of the VRR-Nuc domain of FAN1 reveals that it has an insertion, which packs against the dimerization interface observed in the structures of the viral/bacterial VRR-Nuc proteins. We propose that these additional structural elements in FAN1 prevent dimerization and bias specificity toward flap structures.


    Organizational Affiliation

    Division of Molecular Structure, MRC National Institute for Medical Research, The Ridgeway, London NW7 1AA, UK. Electronic address: spennel@nimr.mrc.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Nuclease
A, B
93Salmonella phage SETP3Mutation(s): 0 
Find proteins for A3EZR7 (Salmonella phage SETP3)
Go to UniProtKB:  A3EZR7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.163 
  • Space Group: F 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 86.221α = 90.00
b = 99.329β = 90.00
c = 109.868γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PHASERphasing
DENZOdata reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-09-10
    Type: Initial release
  • Version 1.1: 2017-11-22
    Type: Refinement description