2bpf

X-ray diffraction
2.9Å resolution

STRUCTURES OF TERNARY COMPLEXES OF RAT DNA POLYMERASE BETA, A DNA TEMPLATE-PRIMER, AND DDCTP

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-115121 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA polymerase beta Chain: A
Molecule details ›
Chain: A
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:
DNA (5'-D(*GP*GP*GP*CP*GP*CP*CP*G)-3') Chain: T
Molecule details ›
Chain: T
Length: 8 nucleotides
Theoretical weight: 2.47 KDa
Source organism: Rattus norvegicus
Expression system: Not provided
DNA (5'-D(*CP*GP*GP*CP*GP*CP*C)-3') Chain: P
Molecule details ›
Chain: P
Length: 7 nucleotides
Theoretical weight: 2.1 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: RIGAKU
Spacegroup: P61
Unit cell:
a: 94.9Å b: 94.9Å c: 117.6Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.193 not available not available
Expression systems:
  • Escherichia coli
  • Not provided