X-ray diffraction
2.32Å resolution

Crystal structure of human DNA polymerase eta in ternary complex with a cisplatin DNA adduct


Function and Biology Details

Reaction catalysed:
Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1)
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA polymerase eta Chain: A
Molecule details ›
Chain: A
Length: 435 amino acids
Theoretical weight: 48.65 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: Q9Y253 (Residues: 1-432; Coverage: 61%)
Gene names: POLH, RAD30, RAD30A, XPV
Sequence domains:
Structure domains:
5'-D(*CP*TP*TP*GP*GP*TP*CP*TP*CP*CP*TP*CP*C)-3' Chain: T
Molecule details ›
Chain: T
Length: 13 nucleotides
Theoretical weight: 3.87 KDa
Source organism: Homo sapiens
Expression system: Not provided
5'-D(*TP*GP*GP*AP*GP*GP*AP*GP*A)-3' Chain: P
Molecule details ›
Chain: P
Length: 9 nucleotides
Theoretical weight: 2.84 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: NSLS BEAMLINE X25
Spacegroup: P61
Unit cell:
a: 98.5Å b: 98.5Å c: 82.603Å
α: 90° β: 90° γ: 120°
R R work R free
0.182 0.178 0.233
Expression systems:
  • Escherichia coli
  • Not provided