2I5W

Structure of hOGG1 crosslinked to DNA sampling a normal G adjacent to an oxoG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.226 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A nucleobase lesion remodels the interaction of its normal neighbor in a DNA glycosylase complex.

Banerjee, A.Verdine, G.L.

(2006) Proc Natl Acad Sci U S A 103: 15020-15025

  • DOI: 10.1073/pnas.0603644103
  • Primary Citation of Related Structures:  
    2I5W

  • PubMed Abstract: 
  • How DNA glycosylases search through millions of base pairs and discriminate between rare sites of damage and otherwise undamaged bases is poorly understood. Even less understood are the details of the structural states arising from DNA glycosylases inter ...

    How DNA glycosylases search through millions of base pairs and discriminate between rare sites of damage and otherwise undamaged bases is poorly understood. Even less understood are the details of the structural states arising from DNA glycosylases interacting with undamaged DNA. Recognizing the mutagenic lesion 7,8-dihydro-8-oxoguanine (8-oxoguanine, oxoG) represents an especially formidable challenge, because this oxidized nucleobase differs by only two atoms from its normal counterpart, guanine (G), and buried in the structure of naked B-form DNA, oxoG and G are practically indistinguishable from each other. We have used disulfide cross-linking technology to capture a human oxoG repair protein, 8-oxoguanine DNA glycosylase I (hOGG1) sampling an undamaged G:C base pair located adjacent to an oxoG:C base pair in DNA. The x-ray structure of the trapped complex reveals that the presence of the 8-oxoG drastically changes the local conformation of the extruded G. The extruded but intrahelical state of the G in this structure offers a view of an early intermediate in the base-extrusion pathway.


    Organizational Affiliation

    Department of Chemistry, Harvard University, 12 Oxford Street, Cambridge, MA 02138, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
N-glycosylase/DNA lyase A315Homo sapiensMutation(s): 1 
Gene Names: OGG1MMHMUTMOGH1
EC: 3.2.2 (PDB Primary Data), 4.2.99.18 (PDB Primary Data)
Find proteins for O15527 (Homo sapiens)
Explore O15527 
Go to UniProtKB:  O15527
NIH Common Fund Data Resources
PHAROS:  O15527
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-D(*GP*GP*TP*AP*GP*AP*CP*CP*TP*GP*GP*A)-3'E12N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      5'-D(P*CP*CP*AP*GP*(G42)P*TP*CP*TP*AP*C)-3'F10N/A
      Small Molecules
      Ligands 2 Unique
      IDChainsName / Formula / InChI Key2D Diagram3D Interactions
      GOL
      Query on GOL

      Download Ideal Coordinates CCD File 
      A
      GLYCEROL
      C3 H8 O3
      PEDCQBHIVMGVHV-UHFFFAOYSA-N
       Ligand Interaction
      CA
      Query on CA

      Download Ideal Coordinates CCD File 
      A, F
      CALCIUM ION
      Ca
      BHPQYMZQTOCNFJ-UHFFFAOYSA-N
       Ligand Interaction
      Experimental Data & Validation

      Experimental Data

      • Method: X-RAY DIFFRACTION
      • Resolution: 2.60 Å
      • R-Value Free: 0.266 
      • R-Value Work: 0.226 
      • Space Group: P 65 2 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 91.524α = 90
      b = 91.524β = 90
      c = 211.848γ = 120
      Software Package:
      Software NamePurpose
      DENZOdata reduction
      SCALEPACKdata scaling
      CNSrefinement
      PDB_EXTRACTdata extraction
      HKL-2000data collection
      HKL-2000data reduction
      HKL-2000data scaling
      CNSphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2006-10-17
        Type: Initial release
      • Version 1.1: 2008-05-01
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Non-polymer description, Version format compliance
      • Version 1.3: 2017-10-18
        Changes: Refinement description