2HXI

Structural Genomics, the crystal structure of a putative transcriptional regulator from Streptomyces coelicolor A3(2)

• PDB DOI: https://doi.org/10.2210/pdb2HXI/pdb

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


• Deposited: 2006-08-03 Released: 2006-09-05 
• Deposition Author(s): Tan, K., Xu, X., Zheng, H., Savchenko, A., Edwards, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.232 (Depositor), 0.194 (DCC) 
• R-Value Work: 
  0.187 (Depositor), 0.188 (DCC) 
• R-Value Observed: 
  0.190 (Depositor) 

Literature

The crystal structure of a putative transcriptional regulator TetR from Streptomyces coelicolor A3(2)

Tan, K., Xu, X., Zheng, H., Savchenko, A., Edwards, 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 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 53.07 kDa 
• Atom Count: 3,483 
• Modelled Residue Count: 395 
• Deposited Residue Count: 482 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Putative transcriptional regulator	A, B	241	Streptomyces coelicolor A3(2)	Mutation(s): 3
UniProt
Find proteins for O87854 (Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)) Explore O87854  Go to UniProtKB:  O87854

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: 1.70 Å
• R-Value Free:  0.232 (Depositor), 0.194 (DCC) 
• R-Value Work:  0.187 (Depositor), 0.188 (DCC) 
• R-Value Observed: 0.190 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.338	α = 90
b = 94.868	β = 95.61
c = 51.835	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-2000	data reduction
HKL-2000	data scaling
HKLSBC	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-09-05 
Deposition Author(s): Tan, K., Xu, X., Zheng, H., Savchenko, A., Edwards, A., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2006-09-05
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2024-10-30
  Changes: Data collection, Database references, Derived calculations, Structure summary