3BR3

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.222 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Formal electrostatic interactions do not govern QacR-cation affinity

Brooks, B.E.Hardie, K.M.Brown, M.H.Skurray, R.A.Brennan, R.G.

To be published.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
HTH-type transcriptional regulator qacRA [auth B],
B [auth A]
194Staphylococcus aureusMutation(s): 4 
Gene Names: qacR
UniProt
Find proteins for P0A0N3 (Staphylococcus aureus (strain Mu50 / ATCC 700699))
Explore P0A0N3 
Go to UniProtKB:  P0A0N3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0A0N3
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
ET
Query on ET

Download Ideal Coordinates CCD File 
H [auth A]ETHIDIUM
C21 H20 N3
QTANTQQOYSUMLC-UHFFFAOYSA-O
SO4
Query on SO4

Download Ideal Coordinates CCD File 
C [auth B]
D [auth B]
E [auth B]
F [auth B]
G [auth B]
C [auth B],
D [auth B],
E [auth B],
F [auth B],
G [auth B],
I [auth A],
J [auth A],
K [auth A]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.222 
  • Space Group: P 62
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 104.148α = 90
b = 104.148β = 90
c = 98.564γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
CrystalCleardata collection
d*TREKdata reduction
d*TREKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

  • Released Date: 2008-12-23 
  • Deposition Author(s): Brooks, B.E.

Revision History  (Full details and data files)

  • Version 1.0: 2008-12-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2021-10-20
    Changes: Database references, Derived calculations
  • Version 1.3: 2023-08-30
    Changes: Data collection, Refinement description