2RA5 | pdb_00002ra5

Crystal structure of the putative transcriptional regulator from Streptomyces coelicolor

• PDB DOI: https://doi.org/10.2210/pdb2RA5/pdb

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


• Deposited: 2007-09-14 Released: 2007-09-25 
• Deposition Author(s): Kim, Y., Xu, X., Zheng, H., Savchenko, A., Edwards, A.M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Free: 
  0.292 (Depositor), 0.286 (DCC) 
• R-Value Work: 
  0.218 (Depositor), 0.212 (DCC) 
• R-Value Observed: 
  0.225 (Depositor) 

Literature

Crystal structure of the putative transcriptional regulator from Streptomyces coelicolor.

Kim, Y., Xu, X., Zheng, H., Savchenko, A., Edwards, A.M., 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: 27.22 kDa 
• Atom Count: 1,254 
• Modeled Residue Count: 150 
• Deposited Residue Count: 247 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative transcriptional regulator	A	247	Streptomyces coelicolor A3(2)	Mutation(s): 0  Gene Names: SCO6256
UniProt
Find proteins for Q9RKT6 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9RKT6  Go to UniProtKB:  Q9RKT6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SRT	B [auth A]	S,R MESO-TARTARIC ACID C4 H6 O6 FEWJPZIEWOKRBE-XIXRPRMCSA-N
IPA	C [auth A]	ISOPROPYL ALCOHOL C3 H8 O KFZMGEQAYNKOFK-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: 2.40 Å
• R-Value Free:  0.292 (Depositor), 0.286 (DCC) 
• R-Value Work:  0.218 (Depositor), 0.212 (DCC) 
• R-Value Observed: 0.225 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 43.768	α = 90
b = 43.768	β = 90
c = 170.735	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELX	phasing
MLPHARE	phasing
RESOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-09-25 
Deposition Author(s): Kim, Y., Xu, X., Zheng, H., Savchenko, A., Edwards, A.M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-09-25
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary