5O7T

Crystal structure of KlenTaq mutant M747K in a closed ternary complex with a dG:dCTP base pair


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the selective incorporation of an artificial nucleotide opposite a DNA adduct by a DNA polymerase.

Betz, K.Nilforoushan, A.Wyss, L.A.Diederichs, K.Sturla, S.J.Marx, A.

(2017) Chem Commun (Camb) 53: 12704-12707

  • DOI: https://doi.org/10.1039/c7cc07173f
  • Primary Citation of Related Structures:  
    5O7T, 5OXJ

  • PubMed Abstract: 

    The possibility to sequence cytotoxic O 6 -alkylG DNA adducts would greatly benefit research. Recently we reported a benzimidazole-derived nucleotide that is selectively incorporated opposite the damaged site by a mutated DNA polymerase. Here we provide the structural basis for this reaction which may spur future developments in DNA damage sequencing.


  • Organizational Affiliation

    Department of Chemistry & Konstanz Research School Chemical Biology, University of Konstanz, Universitätsstr. 10, D-78457 Konstanz, Germany. andreas.marx@uni-konstanz.de.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA polymerase I, thermostable540Thermus aquaticusMutation(s): 1 
Gene Names: polApol1
EC: 2.7.7.7
UniProt
Find proteins for P19821 (Thermus aquaticus)
Explore P19821 
Go to UniProtKB:  P19821
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP19821
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains LengthOrganismImage
DNA primer12synthetic construct
Sequence Annotations
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  • Reference Sequence

Find similar nucleic acids by:  Sequence   |   3D Structure  

Entity ID: 3
MoleculeChains LengthOrganismImage
DNA template16synthetic construct
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.476α = 90
b = 109.476β = 90
c = 91.39γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Cootmodel building
XDSdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-29
    Type: Initial release
  • Version 1.1: 2017-12-06
    Changes: Database references
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Derived calculations, Refinement description