› 3br1

X-ray diffraction
3.31Å resolution

Crystal Structure of the Complex of Dequalinium Bound to QacR(E90Q), a Mutant of a Multidrug Binding Transcriptional Repressor

Released:
DOI: 10.2210/pdb3br1/pdb
PDB entry 3br1 coloured by chain, front view.
PDB entry 3br1 coloured by chain, side view.
PDB entry 3br1 coloured by chain, top view.
Source organism: Staphylococcus aureus
Entry author: Brooks BE

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo hexadecamer
Assembly name:
PDBe Complex ID:
PDB-CPX-140955 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
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
UniProt:
  • Canonical: P0A0N3 (Residues: 1-188; Coverage: 100%)
Gene names: SAVP031, qacR
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
Ligand SO4 22 x SO4
Ligand DEQ 1 x DEQ
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.2.1
Spacegroup: P42212
Unit cell:
a: 170.226Å b: 170.226Å c: 93.577Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.222 0.219 0.277
Expression system: Escherichia coli

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