3BQY | pdb_00003bqy

Crystal structure of a possible TetR family transcriptional regulator from Streptomyces coelicolor A3(2).

• PDB DOI: https://doi.org/10.2210/pdb3BQY/pdb

• Classification: TRANSCRIPTION REGULATOR
• Organism(s): Streptomyces coelicolor A3(2)
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-12-20 Released: 2008-01-15 
• Deposition Author(s): Cuff, M.E., Skarina, T., Kagan, O., Edwards, A.M., Savchenko, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 
  0.210 (Depositor), 0.209 (DCC) 
• R-Value Work: 
  0.181 (Depositor), 0.181 (DCC) 
• R-Value Observed: 
  0.183 (Depositor) 

Literature

Structure of a possible TetR family transcriptional regulator from Streptomyces coelicolor A3(2).

Cuff, M.E., Skarina, T., Kagan, O., Edwards, A.M., Savchenko, A., 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: 22.36 kDa 
• Atom Count: 1,773 
• Modeled Residue Count: 205 
• Deposited Residue Count: 209 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative TetR family transcriptional regulator	A	209	Streptomyces coelicolor A3(2)	Mutation(s): 0  Gene Names: SCO0250, SCJ9A.29
UniProt
Find proteins for Q9S1P1 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9S1P1  Go to UniProtKB:  Q9S1P1

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	B [auth A], C [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
ACY	D [auth A]	ACETIC ACID C2 H4 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-N

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: 1.95 Å
• R-Value Free:  0.210 (Depositor), 0.209 (DCC) 
• R-Value Work:  0.181 (Depositor), 0.181 (DCC) 
• R-Value Observed: 0.183 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.755	α = 90
b = 83.755	β = 90
c = 83.7	γ = 90

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	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: 2008-01-15 
Deposition Author(s): Cuff, M.E., Skarina, T., Kagan, O., Edwards, A.M., Savchenko, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2008-01-15
  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: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary