Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 58.96 kDa 
• Atom Count: 4123 
• Residue Count: 494 
• Unique protein chains: 1

2OCA

The crystal structure of T4 UvsW

• DOI: 10.2210/pdb2OCA/pdb

• Classification: HYDROLASE
• Organism(s): Escherichia virus T4
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-12-20 Released: 2007-10-16 
• Deposition Author(s): Kerr, I.D., White, S.W.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.250 
• R-Value Work: 0.217 

Literature

Crystallographic and NMR Analyses of UvsW and UvsW.1 from Bacteriophage T4.

Kerr, I.D., Sivakolundu, S., Li, Z., Buchsbaum, J.C., Knox, L.A., Kriwacki, R., White, S.W.

(2007) J Biol Chem 282: 34392-34400

• PubMed: 17878153 
• DOI: 10.1074/jbc.M705900200
• Primary Citation of Related Structures:  
  2OCA, 2JPN


• PubMed Abstract: 
  

The uvsWXY system is implicated in the replication and repair of the bacteriophage T4 genome. Whereas the roles of the recombinase (UvsX) and the recombination mediator protein (UvsY) are known, the precise role of UvsW is unclear. Sequence analysis identifies UvsW as a member of the monomeric SF2 helicase superfamily that translocates nucleic acid substrates via the action of two RecA-like motor domains. Functional homologies to Escherichia coli RecG and biochemical analyses have shown that UvsW interacts with branched nucleic acid substrates, suggesting roles in recombination and the rescue of stalled replication forks. A sequencing error at the 3'-end of the uvsW gene has revealed a second, short open reading frame that encodes a protein of unknown function called UvsW.1. We have determined the crystal structure of UvsW to 2.7A and the NMR solution structure of UvsW.1. UvsW has a four-domain architecture with structural homology to the eukaryotic SF2 helicase, Rad54. A model of the UvsW-ssDNA complex identifies structural elements and conserved residues that may interact with nucleic acid substrates. The NMR solution structure of UvsW.1 reveals a dynamic four-helix bundle with homology to the structure-specific nucleic acid binding module of RecQ helicases.

---

Organizational Affiliation: 

Department of Structural Biology, St. Jude Children's Research Hospital, 332 N. Lauderdale Street, Memphis, TN 38105, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent DNA helicase uvsW	A	510	Escherichia virus T4	Mutation(s): 2  Gene Names: uvsW, dar EC: 3.6.1.8 (PDB Primary Data), 3.6.4.12 (UniProt)
Find proteins for P20703 (Enterobacteria phage T4) Explore P20703  Go to UniProtKB:  P20703

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.250 
• R-Value Work: 0.217 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.64	α = 90
b = 155.2	β = 90
c = 101.52	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
CNS	refinement
PDB_EXTRACT	data extraction
SERGUI	data collection
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2006-12-20 
• Released Date: 2007-10-16 
Deposition Author(s): Kerr, I.D., White, S.W.

Revision History 

• Version 1.0: 2007-10-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-18
  Changes: Advisory, Refinement description