3IO5

Crystal Structure of a dimeric form of the uvsX Recombinase core domain from Enterobacteria Phage T4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of the Phage T4 Recombinase UvsX and Its Functional Interaction with the T4 SF2 Helicase UvsW.

Gajewski, S.Webb, M.R.Galkin, V.Egelman, E.H.Kreuzer, K.N.White, S.W.

(2011) J.Mol.Biol. 405: 65-76

  • DOI: 10.1016/j.jmb.2010.10.004

  • PubMed Abstract: 
  • Bacteriophage T4 provides an important model system for studying the mechanism of homologous recombination. We have determined the crystal structure of the T4 UvsX recombinase, and the overall architecture and fold closely resemble those of RecA, inc ...

    Bacteriophage T4 provides an important model system for studying the mechanism of homologous recombination. We have determined the crystal structure of the T4 UvsX recombinase, and the overall architecture and fold closely resemble those of RecA, including a highly conserved ATP binding site. Based on this new structure, we reanalyzed electron microscopy reconstructions of UvsX-DNA filaments and docked the UvsX crystal structure into two different filament forms: a compressed filament generated in the presence of ADP and an elongated filament generated in the presence of ATP and aluminum fluoride. In these reconstructions, the ATP binding site sits at the protomer interface, as in the RecA filament crystal structure. However, the environment of the ATP binding site is altered in the two filament reconstructions, suggesting that nucleotide cannot be as easily accommodated at the protomer interface of the compressed filament. Finally, we show that the phage helicase UvsW completes the UvsX-promoted strand-exchange reaction, allowing the generation of a simple nicked circular product rather than complex networks of partially exchanged substrates.


    Organizational Affiliation

    Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Recombination and repair protein
A, B
333Enterobacteria phage T4Mutation(s): 0 
Gene Names: UVSX
Find proteins for P04529 (Enterobacteria phage T4)
Go to UniProtKB:  P04529
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.210 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 95.974α = 90.00
b = 95.974β = 90.00
c = 131.274γ = 120.00
Software Package:
Software NamePurpose
MAR345dtbdata collection
HKL-2000data scaling
PHENIXphasing
DENZOdata reduction
HKL-2000data reduction
PDB_EXTRACTdata extraction
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2009-08-13 
  • Released Date: 2010-08-25 
  • Deposition Author(s): Gajewski, S.

Revision History 

  • Version 1.0: 2010-08-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description