1ej9

X-ray diffraction
2.6Å resolution

CRYSTAL STRUCTURE OF HUMAN TOPOISOMERASE I DNA COMPLEX

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-113741 (preferred)
Entry contents:
1 distinct polypeptide molecule
2 distinct DNA molecules
Macromolecules (3 distinct):
DNA topoisomerase 1 Chain: A
Molecule details ›
Chain: A
Length: 563 amino acids
Theoretical weight: 66.59 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P11387 (Residues: 203-765; Coverage: 74%)
Gene name: TOP1
Sequence domains:
Structure domains:
DNA (5'-D(*C*AP*AP*AP*AP*AP*GP*AP*CP*TP*CP*AP*GP*AP*AP*AP*AP*AP*TP*TP*TP*TP*T)-3') Chain: C
Molecule details ›
Chain: C
Length: 23 nucleotides
Theoretical weight: 7.06 KDa
Source organism: Homo sapiens
Expression system: Not provided
DNA (5'-D(*C*AP*AP*AP*AP*AP*TP*TP*TP*TP*TP*CP*TP*GP*AP*GP*TP*CP*TP*TP*TP*TP*T)-3') Chain: D
Molecule details ›
Chain: D
Length: 23 nucleotides
Theoretical weight: 7.01 KDa
Source organism: Homo sapiens
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 14-BM-C
Spacegroup: P21
Unit cell:
a: 56.98Å b: 124.92Å c: 72.29Å
α: 90° β: 93.84° γ: 90°
R-values:
R R work R free
0.214 0.214 0.281
Expression systems:
  • Spodoptera frugiperda
  • Not provided