3LHQ

DNA-binding transcriptional repressor AcrR from Salmonella typhimurium.

• PDB DOI: https://doi.org/10.2210/pdb3LHQ/pdb

• Classification: TRANSCRIPTION
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium str. LT2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-01-22 Released: 2010-02-02 
• Deposition Author(s): Osipiuk, J., Mulligan, R., Papazisi, L., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.56 Å
• R-Value Free: 0.199 
• R-Value Work: 0.150 
• R-Value Observed: 0.153 

Starting Model: experimental

Literature

X-ray crystal structure of DNA-binding transcriptional repressor AcrR from Salmonella typhimurium.

Osipiuk, J., Mulligan, R., Papazisi, L., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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 (software)

Macromolecule Content

• Total Structure Weight: 50.68 kDa 
• Atom Count: 3,951 
• Modelled Residue Count: 421 
• Deposited Residue Count: 440 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AcrAB operon repressor (TetR/AcrR family)	A, B	220	Salmonella enterica subsp. enterica serovar Typhimurium str. LT2	Mutation(s): 0  Gene Names: acrR, STM0477
UniProt
Find proteins for Q7CR15 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore Q7CR15  Go to UniProtKB:  Q7CR15

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	C [auth A], E [auth B]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO	D [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.56 Å
• R-Value Free: 0.199 
• R-Value Work: 0.150 
• R-Value Observed: 0.153 
• Space Group: P 1 2₁ 1
• Diffraction Data: https://doi.org/10.18430/m33lhq

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.18	α = 90
b = 75.82	β = 108.67
c = 55.176	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-02-02 
Deposition Author(s): Osipiuk, J., Mulligan, R., Papazisi, L., Anderson, W.F., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2010-02-02
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-01
  Changes: Refinement description
• Version 1.3: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description