1M3Q

Crystal Structure of hogg1 D268E Mutant with Base-Excised DNA and 8-aminoguanine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.235 

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This is version 1.3 of the entry. See complete history


Literature

Structures of End Products Resulting from Lesion Processing by a DNA Glycosylase/Lyase

Chung, S.J.Verdine, G.L.

(2004) Chem Biol 11: 1643-1649

  • DOI: 10.1016/j.chembiol.2004.09.014
  • Primary Citation of Related Structures:  
    1M3H, 1M3Q

  • PubMed Abstract: 
  • DNA glycosylase/lyases initiate the repair of damaged nucleobases in the genome by catalyzing excision of aberrant nucleobases and nicking of the lesion-containing DNA strand. Nearly all of these proteins have the unusual property of remaining tightly bound in vitro to the end products of the reaction cascade ...

    DNA glycosylase/lyases initiate the repair of damaged nucleobases in the genome by catalyzing excision of aberrant nucleobases and nicking of the lesion-containing DNA strand. Nearly all of these proteins have the unusual property of remaining tightly bound in vitro to the end products of the reaction cascade. We have taken advantage of this property to crystallize and structurally characterize the end product resulting from complete DNA processing by a catalytically active mutant form of human 8-oxoguanine DNA glycosylase (D268E hOgg1). The resulting structure is consistent with the currently accepted catalytic mechanism for the protein. Unexpectedly, however, soaking of a nucleobase analog into the crystals results in religation of the DNA backbone in situ.


    Organizational Affiliation

    Department of Chemistry and Chemical Biology, Cambridge, Massachusetts 02138, USA.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
8-oxoguanine DNA glycosylaseC [auth A]317Homo sapiensMutation(s): 1 
Gene Names: OGG1MMHMUTMOGH1
EC: 3.2.2 (PDB Primary Data), 4.2.99.18 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for O15527 (Homo sapiens)
Explore O15527 
Go to UniProtKB:  O15527
PHAROS:  O15527
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
5'-D(*GP*GP*TP*AP*GP*AP*CP*CP*TP*GP*GP*AP*CP*GP*C)-3'A [auth B]15N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
5'-D(*GP*CP*GP*TP*CP*CP*AP*(DRZ)P*GP*TP*CP*TP*AP*CP*C)-3'B [auth C]15N/A
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANG (Subject of Investigation/LOI)
Query on ANG

Download Ideal Coordinates CCD File 
E [auth A]8-AMINOGUANINE
C5 H6 N6 O
WYDKPTZGVLTYPG-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download Ideal Coordinates CCD File 
D [auth C]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.235 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.415α = 90
b = 92.415β = 90
c = 211.425γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-02-17
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-10-27
    Changes: Database references, Derived calculations