7ict

X-ray diffraction
2.8Å resolution

DNA POLYMERASE BETA (E.C.2.7.7.7)/DNA COMPLEX, SOAKED IN THE PRESENCE OF ZNCL2 AND MGCL2

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-121301 (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: 38.24 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P06746 (Residues: 1-335; Coverage: 100%)
Gene name: POLB
Sequence domains:
Structure domains:
DNA (5'-D(*CP*AP*TP*CP*TP*GP*T)-3') Chain: T
Molecule details ›
Chain: T
Length: 7 nucleotides
Theoretical weight: 2.09 KDa
Source organism: Homo sapiens
Expression system: Not provided
DNA (5'-D(*CP*AP*GP*AP*TP*G)-3') Chain: P
Molecule details ›
Chain: P
Length: 6 nucleotides
Theoretical weight: 1.83 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P21212
Unit cell:
a: 178.784Å b: 57.741Å c: 48.48Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.168 not available not available
Expression systems:
  • Escherichia coli
  • Not provided