PDBe 3qu6

X-ray diffraction
2.3Å resolution

Crystal structure of IRF-3 DBD free form

Source organism: Homo sapiens

Function and Biology Details

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Interferon regulatory factor 3 Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 116 amino acids
Theoretical weight: 13.42 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: Q14653 (Residues: 1-113; Coverage: 27%)
  • Best match: Q14653-5 (Residues: 1-55)
Gene name: IRF3
Sequence domains: Interferon regulatory factor transcription factor
Structure domains: Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-BM
Spacegroup: P3221
Unit cell:
a: 64.908Å b: 64.908Å c: 157.621Å
α: 90° β: 90° γ: 120°
R R work R free
0.216 0.213 0.263
Expression system: Escherichia coli