3igc

X-ray diffraction
2.1Å resolution

Smallpox virus topoisomerase-DNA transition state

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-116403 (preferred)
Entry contents:
1 distinct polypeptide molecule
3 distinct DNA molecules
Macromolecules (4 distinct):
DNA topoisomerase 1 Chain: A
Molecule details ›
Chain: A
Length: 314 amino acids
Theoretical weight: 36.62 KDa
Source organism: Variola virus
Expression system: Escherichia coli
UniProt:
  • Canonical: P32989 (Residues: 1-314; Coverage: 100%)
Gene names: H6R, I6R, OPG111, TOP1
Sequence domains:
Structure domains:
5'-D(*GP*TP*GP*TP*CP*GP*CP*CP*CP*TP*T)-3' Chain: B
Molecule details ›
Chain: B
Length: 11 nucleotides
Theoretical weight: 3.32 KDa
Source organism: Variola virus
Expression system: Not provided
5'-D(*AP*TP*TP*CP*C)-3' Chain: C
Molecule details ›
Chain: C
Length: 5 nucleotides
Theoretical weight: 1.45 KDa
Source organism: Variola virus
Expression system: Not provided
5'-D(*CP*GP*GP*AP*AP*TP*AP*AP*GP*GP*GP*CP*GP*AP*CP*A)-3' Chain: D
Molecule details ›
Chain: D
Length: 16 nucleotides
Theoretical weight: 4.98 KDa
Source organism: Variola virus
Expression system: Not provided

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P42212
Unit cell:
a: 103.999Å b: 103.999Å c: 93.01Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.18 0.177 0.244
Expression systems:
  • Escherichia coli
  • Not provided