5O7T image
Deposition Date 2017-06-09
Release Date 2017-11-29
Last Version Date 2024-01-17
Entry Detail
PDB ID:
5O7T
Keywords:
TRANSFERASE
Title:
Crystal structure of KlenTaq mutant M747K in a closed ternary complex with a dG:dCTP base pair
Biological Source:
Source Organism:
Thermus aquaticus (Taxon ID: 271)
synthetic construct (Taxon ID: 32630)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.80 Å
R-Value Free:
0.23
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 31 2 1
5O7T validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:DNA polymerase I, thermostable
Gene (Uniprot):polA
Mutations:M747K
Chain IDs:A
Chain Length:540
Number of Molecules:1
Biological Source:Thermus aquaticus
UniProt ID:P19821 Pfam ID:PF09281, PF00476 EC:2.7.7.7
Polymer Type:polydeoxyribonucleotide
Molecule:DNA primer
Chain IDs:B
Chain Length:12
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polydeoxyribonucleotide
Molecule:DNA template
Chain IDs:C
Chain Length:16
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
DCP
GOL
MG
Primary Citation
Structural basis for the selective incorporation of an artificial nucleotide opposite a DNA adduct by a DNA polymerase.
Chem. Commun. (Camb.) 53 12704 12707 (2017)
PMID: 29136072 DOI: 10.1039/c7cc07173f

Abstact

The possibility to sequence cytotoxic O6-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.

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Primary Citation of related structures
5O7T