2PQQ | pdb_00002pqq

Structural Genomics, the crystal structure of the N-terminal domain of a transcriptional regulator from Streptomyces coelicolor A3(2)

• PDB DOI: https://doi.org/10.2210/pdb2PQQ/pdb

• Classification: TRANSCRIPTION
• Organism(s): Streptomyces coelicolor A3(2)
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2007-05-02 Released: 2007-06-05 
• Deposition Author(s): Tan, K., 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: 2.00 Å
• R-Value Free: 
  0.281 (Depositor), 0.309 (DCC) 
• R-Value Work: 
  0.229 (Depositor) 
• R-Value Observed: 
  0.232 (Depositor) 

Literature

The crystal structure of the N-terminal domain of a transcriptional regulator from Streptomyces coelicolor A3(2)

Tan, K., Xu, X., Zheng, H., Savchenko, A., Edwards, A.M., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 65.67 kDa 
• Atom Count: 4,667 
• Modeled Residue Count: 574 
• Deposited Residue Count: 596 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative transcriptional regulator	A, B, C, D	149	Streptomyces coelicolor A3(2)	Mutation(s): 4  Gene Names: SCO3571, SCH17.05
UniProt
Find proteins for Q9XA42 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore Q9XA42  Go to UniProtKB:  Q9XA42

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FMT	E [auth A], F [auth C], G [auth D]	FORMIC ACID C H2 O2 BDAGIHXWWSANSR-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free:  0.281 (Depositor), 0.309 (DCC) 
• R-Value Work:  0.229 (Depositor) 
• R-Value Observed: 0.232 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.852	α = 90
b = 100.946	β = 90
c = 144.119	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-06-05 
Deposition Author(s): Tan, K., Xu, X., Zheng, H., Savchenko, A., Edwards, A.M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2007-06-05
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary