X-ray diffraction
2.9Å resolution

Structure of QacR Multidrug Transcriptional Regulator Bound to Bivalent Diamidine Berenil

Source organism: Staphylococcus aureus
Entry author: Schuman JT

Function and Biology Details

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo hexadecamer
Entry contents:
1 distinct polypeptide molecule
HTH-type transcriptional regulator QacR Chains: A, B, D, E
Molecule details ›
Chains: A, B, D, E
Length: 194 amino acids
Theoretical weight: 22.98 KDa
Source organism: Staphylococcus aureus
Expression system: Escherichia coli
  • Canonical: P0A0N4 (Residues: 1-188; Coverage: 100%)
Gene names: SAP100B_005, SAP104C_022, qacR
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 4.2.2
Spacegroup: P42212
Unit cell:
a: 171.34Å b: 171.34Å c: 94.53Å
α: 90° β: 90° γ: 90°
R R work R free
0.249 0.249 0.29
Expression system: Escherichia coli