4dqp

X-ray diffraction
1.74Å resolution

Ternary complex of Bacillus DNA Polymerase I Large Fragment, DNA duplex, and ddCTP (paired with dG of template)

Released:
Entry authors: Wang W, Beese LS

Function and Biology Details

Reaction catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA polymerase I Chains: A, D
Molecule details ›
Chains: A, D
Length: 592 amino acids
Theoretical weight: 67.47 KDa
Source organism: Geobacillus kaustophilus HTA426
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5KWC1 (Residues: 287-878; Coverage: 67%)
Gene names: GK2730, polA
Sequence domains: DNA polymerase family A
Structure domains:
DNA (5'-D(*CP*CP*TP*GP*AP*CP*TP*CP*(DOC))-3') Chains: B, E
Molecule details ›
Chains: B, E
Length: 9 nucleotides
Theoretical weight: 2.64 KDa
Source organism: Geobacillus kaustophilus HTA426
Expression system: Not provided
DNA (5'-D(*C*AP*TP*GP*GP*GP*AP*GP*TP*CP*AP*GP*G)-3') Chains: C, F
Molecule details ›
Chains: C, F
Length: 13 nucleotides
Theoretical weight: 4.06 KDa
Source organism: Geobacillus kaustophilus HTA426
Expression system: Not provided

Ligands and Environments

3 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-BM
Spacegroup: P212121
Unit cell:
a: 94.22Å b: 109.34Å c: 149.93Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.168 0.167 0.195
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided