2REK | pdb_00002rek

Crystal structure of tetR-family transcriptional regulator

• PDB DOI: https://doi.org/10.2210/pdb2REK/pdb

• Classification: TRANSCRIPTION
• Organism(s): Streptomyces coelicolor A3(2)
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2007-09-26 Released: 2007-10-09 
• Deposition Author(s): Dong, A., Xu, X., Gu, J., Edwards, A.M., Joachimiak, A., Savchenko, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free: 
  0.245 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Literature

Crystal structure of tetR-family transcriptional regulator.

Dong, A., Xu, X., Gu, J., Edwards, A.M., Joachimiak, A., Savchenko, 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: 41.89 kDa 
• Atom Count: 2,723 
• Modeled Residue Count: 347 
• Deposited Residue Count: 398 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative tetR-family transcriptional regulator	A, B	199	Streptomyces coelicolor A3(2)	Mutation(s): 0  Gene Names: SCO5068
UniProt
Find proteins for Q9ADD9 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9ADD9  Go to UniProtKB:  Q9ADD9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	C [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free:  0.245 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.484	α = 90
b = 70.459	β = 90
c = 72.102	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
CrystalClear	data collection
HKL-2000	data reduction
HKL-2000	data scaling
SOLVE	phasing
RESOLVE	phasing
ARP/wARP	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-10-09 
Deposition Author(s): Dong, A., Xu, X., Gu, J., Edwards, A.M., Joachimiak, A., Savchenko, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-10-09
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations