2o4i

X-ray diffraction
3.5Å resolution

Structure of TREX1 in complex with DNA

Released:

Function and Biology Details

Reaction catalysed:
Exonucleolytic cleavage in the 3'- to 5'-direction to yield nucleoside 5'-phosphates
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-115700 (preferred)
Entry contents:
1 distinct polypeptide molecule
1 distinct DNA molecule
Macromolecules (2 distinct):
Three-prime repair exonuclease 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 247 amino acids
Theoretical weight: 27.11 KDa
Source organism: Mus musculus
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: Q91XB0 (Residues: 9-245; Coverage: 76%)
Gene name: Trex1
Structure domains: Ribonuclease H-like superfamily/Ribonuclease H
5'-D(*GP*CP*TP*AP*GP*GP*CP*AP*GP*GP*AP*AP*CP*CP*CP*CP*TP*CP*CP*TP*CP*CP*CP*CP*T)-3' Chains: C, D
Molecule details ›
Chains: C, D
Length: 25 nucleotides
Theoretical weight: 7.54 KDa
Source organism: Mus musculus
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: P43212
Unit cell:
a: 80.758Å b: 80.758Å c: 171.22Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.245 0.243 0.283
Expression systems:
  • Escherichia coli BL21
  • Not provided