6DSU image
Deposition Date 2018-06-14
Release Date 2018-10-31
Last Version Date 2024-03-13
Entry Detail
PDB ID:
6DSU
Keywords:
TRANSFERASE/DNA
Title:
Bst DNA polymerase I pre-insertion complex structure
Biological Source:
Source Organism:
Geobacillus stearothermophilus (Taxon ID: 1422)
synthetic construct (Taxon ID: 32630)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.98 Å
R-Value Free:
0.27
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 21 21 21
6DSU validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:DNA polymerase I
Gene (Uniprot):polA
Chain IDs:C (auth: A)
Chain Length:580
Number of Molecules:1
Biological Source:Geobacillus stearothermophilus
UniProt ID:E1C9K5 Pfam ID:PF22619, PF00476 EC:2.7.7.49
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*GP*CP*GP*AP*TP*CP*AP*CP*GP*T)-3')
Chain IDs:A (auth: P)
Chain Length:10
Number of Molecules:1
Biological Source:synthetic construct
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(P*AP*CP*GP*TP*GP*AP*TP*CP*GP*CP*A)-3')
Chain IDs:B (auth: T)
Chain Length:11
Number of Molecules:1
Biological Source:synthetic construct
Ligand Molecules
DZ4
MG
SO4
Primary Citation
Crystal structures of DNA polymerase I capture novel intermediates in the DNA synthesis pathway.
Elife 7 ? ? (2018)
PMID: 30338759 DOI: 10.7554/eLife.40444

Abstact

High resolution crystal structures of DNA polymerase intermediates are needed to study the mechanism of DNA synthesis in cells. Here we report five crystal structures of DNA polymerase I that capture new conformations for the polymerase translocation and nucleotide pre-insertion steps in the DNA synthesis pathway. We suggest that these new structures, along with previously solved structures, highlight the dynamic nature of the finger subdomain in the enzyme active site.

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Primary Citation of related structures
6DSU