PDBe 2fmq

X-ray diffraction
2.2Å resolution

Sodium in active site of DNA Polymerase Beta

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
1 distinct polypeptide molecule
3 distinct DNA molecules
Macromolecules (4 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:
5'-D(*CP*CP*GP*AP*CP*AP*GP*CP*GP*CP*AP*TP*CP*AP*GP*C)-3' Chain: B
Molecule details ›
Chain: B
Length: 16 nucleotides
Theoretical weight: 4.85 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(*GP*CP*TP*GP*AP*TP*GP*CP*GP*C)-3' Chain: C
Molecule details ›
Chain: C
Length: 10 nucleotides
Theoretical weight: 3.06 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(P*GP*TP*CP*GP*G)-3' Chain: D
Molecule details ›
Chain: D
Length: 5 nucleotides
Theoretical weight: 1.54 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RUH3R
Spacegroup: P21
Unit cell:
a: 50.8Å b: 80.2Å c: 55.3Å
α: 90° β: 107.5° γ: 90°
R-values:
R R work R free
0.2 0.19 0.242
Expression systems:
  • Escherichia coli
  • Not provided