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X-ray diffraction
2.6Å resolution

CRYSTAL STRUCTURE OF DNA POLYMERASE BETA COMPLEXED WITH DNA AND CR-TMPPCP

Released:

Function and Biology Details

Reactions catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
The C-O-P bond 3' to the apurinic or apyrimidinic site in DNA is broken by a beta-elimination reaction, leaving a 3'-terminal unsaturated sugar and a product with a terminal 5'-phosphate

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-113913 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA polymerase beta Chains: A, B
Molecule details ›
Chains: A, B
Length: 335 amino acids
Theoretical weight: 38.39 KDa
Source organism: Rattus norvegicus
Expression system: Escherichia coli
UniProt:
  • Canonical: P06766 (Residues: 1-335; Coverage: 100%)
Gene name: Polb
Sequence domains:
Structure domains:
5'-D(*AP*AP*TP*AP*GP*GP*CP*GP*TP*CP*G)-3' Chains: C, T
Molecule details ›
Chains: C, T
Length: 11 nucleotides
Theoretical weight: 3.4 KDa
Source organism: Rattus norvegicus
Expression system: Not provided
5'-D(P*CP*GP*AP*CP*GP*CP*C)-3' Chains: D, P
Molecule details ›
Chains: D, P
Length: 7 nucleotides
Theoretical weight: 2.08 KDa
Source organism: Rattus norvegicus
Expression system: Not provided

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X4A
Spacegroup: P21
Unit cell:
a: 105.911Å b: 56.162Å c: 86.055Å
α: 90° β: 107.25° γ: 90°
R-values:
R R work R free
0.226 0.226 0.288
Expression systems:
  • Escherichia coli
  • Not provided