2NP3

Crystal structure of TetR-family regulator (SCO0857) from Streptomyces coelicolor A3.

• PDB DOI: https://doi.org/10.2210/pdb2NP3/pdb

• Classification: TRANSCRIPTION
• Organism(s): Streptomyces coelicolor
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-10-26 Released: 2006-11-28 
• Deposition Author(s): Koclega, K.D., Xu, X., Chruszcz, M., Gu, J., Cymborowski, M., Savchenko, A., Edwards, A., Joachimiak, A., Minor, W., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.264 
• R-Value Work: 0.222 
• R-Value Observed: 0.225 

Literature

Crystal structure of TetR-family regulator (SCO0857) from Streptomyces coelicolor A3.

Koclega, K.D., Xu, X., Chruszcz, M., Gu, J., Cymborowski, M., Savchenko, A., Edwards, A., Minor, W., Midwest Center for Structural Genomics (MCSG)

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: 45.36 kDa 
• Atom Count: 2,395 
• Modelled Residue Count: 323 
• Deposited Residue Count: 424 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative TetR-family regulator	A, B	212	Streptomyces coelicolor	Mutation(s): 7  Gene Names: SCO0857
UniProt
Find proteins for Q9RCV4 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9RCV4  Go to UniProtKB:  Q9RCV4

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.264 
• R-Value Work: 0.222 
• R-Value Observed: 0.225 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.431	α = 90
b = 92.768	β = 90
c = 93.938	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
HKL-3000	phasing
SHELXD	phasing
SHELXE	model building
MLPHARE	phasing
DM	phasing
SOLVE	phasing
RESOLVE	phasing
O	model building
Coot	model building
CCP4	phasing
ARP/wARP	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-11-28 
Deposition Author(s): Koclega, K.D., Xu, X., Chruszcz, M., Gu, J., Cymborowski, M., Savchenko, A., Edwards, A., Joachimiak, A., Minor, W., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2006-11-28
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2011-10-05
  Changes: Structure summary
• Version 1.4: 2022-04-13
  Changes: Database references, Derived calculations, Structure summary
• Version 1.5: 2023-12-27
  Changes: Data collection
• Version 1.6: 2024-10-30
  Changes: Structure summary