3DEW | pdb_00003dew

The structure of a putative TetR family transcriptional regulator from Geobacter sulfurreducens PCA.

• PDB DOI: https://doi.org/10.2210/pdb3DEW/pdb

• Classification: transcription regulator
• Organism(s): Geobacter sulfurreducens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-06-10 Released: 2008-09-30 
• Deposition Author(s): Cuff, M.E., Bigelow, L., Abdullah, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.210 (Depositor), 0.214 (DCC) 
• R-Value Work: 
  0.171 (Depositor), 0.171 (DCC) 
• R-Value Observed: 
  0.173 (Depositor) 

Literature

The structure of a putative TetR family transcriptional regulator from Geobacter sulfurreducens PCA.

Cuff, M.E., Bigelow, L., Abdullah, J., Joachimiak, A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 23.14 kDa 
• Atom Count: 1,843 
• Modeled Residue Count: 192 
• Deposited Residue Count: 206 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Transcriptional regulator, TetR family	A	206	Geobacter sulfurreducens	Mutation(s): 0  Gene Names: GSU0175
UniProt
Find proteins for Q74GS0 (Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA)) Explore Q74GS0  Go to UniProtKB:  Q74GS0

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BME	C [auth A]	BETA-MERCAPTOETHANOL C2 H6 O S DGVVWUTYPXICAM-UHFFFAOYSA-N
EDO	D [auth A], E [auth A], F [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
ACY	G [auth A]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.210 (Depositor), 0.214 (DCC) 
• R-Value Work:  0.171 (Depositor), 0.171 (DCC) 
• R-Value Observed: 0.173 (Depositor) 

Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.106	α = 90
b = 63.106	β = 90
c = 76.55	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MLPHARE	phasing
DM	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELXD	phasing
SHELXE	model building
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building
CCP4	phasing
O	model building
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-09-30 
Deposition Author(s): Cuff, M.E., Bigelow, L., Abdullah, J., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2008-09-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Refinement description
• Version 1.3: 2025-03-26
  Changes: Data collection, Database references, Derived calculations, Structure summary