2GBY

Structure of QacR Multidrug Transcriptional Regulator Bound to Bivalent Diamidine Berenil

• PDB DOI: https://doi.org/10.2210/pdb2GBY/pdb

• Classification: TRANSCRIPTION
• Organism(s): Staphylococcus aureus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-03-12 Released: 2008-04-08 
• Deposition Author(s): Schuman, J.T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.290 
• R-Value Work: 0.249 
• R-Value Observed: 0.249 

Literature

Structure of QacR Multidrug Transcriptional Regulator Bound to Trivalent and Bivalent Diamidine Drugs

Brennan, R.G., Schuman, J.T.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA,PQS (software)

Biological Assembly 3  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 16-mer - A16 

Biological assembly 3 generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 16-mer - A16 

Biological assembly 4 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 93.27 kDa 
• Atom Count: 6,272 
• Modelled Residue Count: 744 
• Deposited Residue Count: 776 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HTH-type transcriptional regulator qacR	A [auth B], B [auth D], C [auth A], D [auth E]	194	Staphylococcus aureus	Mutation(s): 2  Gene Names: qacR
UniProt
Find proteins for P0A0N4 (Staphylococcus aureus) Explore P0A0N4  Go to UniProtKB:  P0A0N4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BRN	G [auth A]	BERENIL C14 H15 N7 XNYZHCFCZNMTFY-UHFFFAOYSA-N
SO4	E [auth D], F [auth D], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A], M [auth A], N [auth E], O [auth E], P [auth E]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.290 
• R-Value Work: 0.249 
• R-Value Observed: 0.249 
• Space Group: P 4₂ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 171.34	α = 90
b = 171.34	β = 90
c = 94.53	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-04-08 
Deposition Author(s): Schuman, J.T.

Revision History  

• Version 1.0: 2008-04-08
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.2: 2021-10-20
  Changes: Database references, Derived calculations
• Version 1.3: 2024-02-14
  Changes: Data collection