1l3u

X-ray diffraction
1.8Å resolution

Crystal Structure of Bacillus DNA Polymerase I Fragment product complex with 11 base pairs of duplex DNA following addition of a dTTP and a dATP residue.

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA polymerase I Chain: A
Molecule details ›
Chain: A
Length: 580 amino acids
Theoretical weight: 66.17 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Escherichia coli
UniProt:
  • Canonical: P52026 (Residues: 297-876; Coverage: 66%)
Gene names: pol, polA
Sequence domains: DNA polymerase family A
Structure domains:
5'-D(*GP*CP*GP*AP*TP*CP*AP*CP*GP*TP*A)-3' Chain: B
Molecule details ›
Chain: B
Length: 11 nucleotides
Theoretical weight: 3.36 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Not provided
5'-D(*GP*AP*C*GP*TP*AP*CP*GP*TP*GP*AP*TP*CP*GP*CP*A)-3' Chain: C
Molecule details ›
Chain: C
Length: 16 nucleotides
Theoretical weight: 4.92 KDa
Source organism: Geobacillus stearothermophilus
Expression system: Not provided

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X12B
Spacegroup: P212121
Unit cell:
a: 86.429Å b: 93.018Å c: 106.137Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.196 0.194 0.228
Expression systems:
  • Escherichia coli
  • Not provided