2PVI

PVUII ENDONUCLEASE COMPLEXED TO AN IODINATED COGNATE DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

How is modification of the DNA substrate recognized by the PvuII restriction endonuclease?

Horton, J.R.Bonventre, J.Cheng, X.

(1998) J.Biol.Chem. 379: 451-458


  • PubMed Abstract: 
  • In restriction-modification systems, cleavage of substrate sites in cellular DNA by the restriction endonuclease is prevented by the action of a cognate methyltransferase that acts on the same substrate sites. The PvuII restriction endonuclease (R.Pv ...

    In restriction-modification systems, cleavage of substrate sites in cellular DNA by the restriction endonuclease is prevented by the action of a cognate methyltransferase that acts on the same substrate sites. The PvuII restriction endonuclease (R.PvuII) has been structurally characterized in a complex with substrate DNA (Cheng et al., 1994) and as an apoenzyme (Athanasiadis et al., 1994). We report here a structure, determined to 1.9 A resolution by crystallography, of a complex between R.PvuII and iodinated DNA. The presence of an iodine at the 5-carbon of the methylatable cytosine results in the following changes in the protein: His84 moved away from the modified base; this movement was amplified in His85 and disrupts an intersubunit hydrogen bond; and the base modification disturbs the distribution of water molecules that associate with these histidine residues and the area of the scissile bond. Considering these observations, hypotheses are given as to why a similar oligonucleotide, where a methyl group resides on the 5-carbon of the methylatable cytosine, is slowly cleaved by R.PvuII (Rice et al., 1995).


    Related Citations: 
    • Expression, Purification, and Crystallization of Restriction Endonuclease PvuII with DNA Containing its Recognition Site
      Balendiran, K.,Bonventre, J.,Knott, R.,Jack, W.,Benner, J.,Schildkraut, I.,Anderson, J.E.
      (1994) Proteins 19: 77
    • Structure of PvuII Endonuclease with Cognate DNA
      Cheng, X.,Balendiran, K.,Schildkraut, I.,Anderson, J.E.
      (1994) Embo J. 13: 3927


    Organizational Affiliation

    Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TYPE II RESTRICTION ENZYME PVUII
A, B
157Proteus hauseriGene Names: pvuIIR
EC: 3.1.21.4
Find proteins for P23657 (Proteus hauseri)
Go to UniProtKB:  P23657
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*TP*GP*AP*CP*CP*AP*GP*(C38)P*TP*GP*GP*TP*C)-3')C,D13N/A
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
C38
Query on C38
C, D
DNA LINKINGC9 H13 I N3 O7 PDC
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.255 
  • R-Value Work: 0.188 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 95.800α = 90.00
b = 86.300β = 90.00
c = 48.500γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
SCALEPACKdata scaling
DENZOdata reduction
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1998-11-01 
  • Released Date: 1999-12-20 
  • Deposition Author(s): Horton, J., Cheng, X.

Revision History 

  • Version 1.0: 1999-12-20
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance