1CW0

CRYSTAL STRUCTURE ANALYSIS OF VERY SHORT PATCH REPAIR (VSR) ENDONUCLEASE IN COMPLEX WITH A DUPLEX DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Recognition of a TG mismatch: the crystal structure of very short patch repair endonuclease in complex with a DNA duplex.

Tsutakawa, S.E.Jingami, H.Morikawa, K.

(1999) Cell 99: 615-623


  • PubMed Abstract: 
  • The crystal structure of very short patch repair (Vsr) endonuclease, in complex with Mg2+ and with duplex DNA containing a TG mismatch, has been determined at 2.3 A resolution. In E. coli, the enzyme recognizes a TG mismatched base pair, generated af ...

    The crystal structure of very short patch repair (Vsr) endonuclease, in complex with Mg2+ and with duplex DNA containing a TG mismatch, has been determined at 2.3 A resolution. In E. coli, the enzyme recognizes a TG mismatched base pair, generated after spontaneous deamination of methylated cytosines, and cleaves the phosphate backbone on the 5' side of the thymine. Extensive interactions between the DNA and the protein characterize a novel recognition mechanism, where three aromatic residues intercalate from the major groove into the DNA to strikingly deform the base pair stacking. With the presence of a cleaved DNA intermediate in the active center, the structure of the Vsr/DNA complex provides detailed insights into the catalytic mechanism for endonuclease activity.


    Organizational Affiliation

    Department of Structural Biology, Biomolecular Engineering Research Institute, Suita, Osaka, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (DNA MISMATCH ENDONUCLEASE)
A
155Escherichia coli (strain K12)Gene Names: vsr
EC: 3.1.-.-
Find proteins for P09184 (Escherichia coli (strain K12))
Go to UniProtKB:  P09184
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*CP*GP*TP*AP*CP*CP*TP*GP*GP*CP*T)-3')M12N/A
Entity ID: 2
MoleculeChainsLengthOrganism
DNA (5'-D(*AP*GP*C)-3')N3N/A
Entity ID: 3
MoleculeChainsLengthOrganism
DNA (5'-D(P*TP*AP*GP*GP*TP*AP*CP*GP*T)-3')O9N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Download SDF File 
Download CCD File 
A, N
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.204 
  • Space Group: P 65
Unit Cell:
Length (Å)Angle (°)
a = 63.000α = 90.00
b = 63.000β = 90.00
c = 152.500γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
AMoREphasing
SCALEPACKdata scaling
CNSrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-12-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance