X-ray diffraction
2.25Å resolution

Crystal structure of Hfq riboregulator from E. coli (P6 space group)


Function and Biology Details

Biochemical function:
Cellular component:

Structure analysis Details

Assembly composition:
homo hexamer (preferred)
Entry contents:
1 distinct polypeptide molecule
RNA-binding protein Hfq Chain: A
Molecule details ›
Chain: A
Length: 104 amino acids
Theoretical weight: 11.31 KDa
Source organism: Escherichia coli
Expression system: Escherichia coli BL21(DE3)
  • Canonical: P0A6X3 (Residues: 1-102; Coverage: 100%)
Gene names: JW4130, b4172, hfq
Sequence domains: Hfq protein
Structure domains: SH3 type barrels.

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P6
Unit cell:
a: 61.5Å b: 61.5Å c: 28.25Å
α: 90° β: 90° γ: 120°
R R work R free
0.188 0.18 0.226
Expression system: Escherichia coli BL21(DE3)