X-ray diffraction
3Å resolution

Structure of a bacterial peptide pheromone/receptor complex and its mechanism of gene regulation


Function and Biology Details

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
HTH cro/C1-type domain-containing protein Chains: A, B
Molecule details ›
Chains: A, B
Length: 317 amino acids
Theoretical weight: 37.14 KDa
Source organism: Enterococcus faecalis
Expression system: Escherichia coli
  • Canonical: Q04114 (Residues: 1-317; Coverage: 100%)
Gene names: GKQ57_14465, GTI81_15620, prgX
Sequence domains: Helix-turn-helix
Structure domains:
peptide Chains: E, F
Molecule details ›
Chains: E, F
Length: 7 amino acids
Theoretical weight: 790 Da
Source organism: Enterococcus faecalis
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 4.2.2
Spacegroup: P6122
Unit cell:
a: 82.546Å b: 82.546Å c: 380.156Å
α: 90° β: 90° γ: 120°
R R work R free
0.214 0.212 0.26
Expression systems:
  • Escherichia coli
  • Not provided