3O5Y

The Crystal Structure of the GAF domain of a two-component sensor histidine kinase from Bacillus halodurans to 2.45A

• PDB DOI: https://doi.org/10.2210/pdb3O5Y/pdb

• Classification: transcription regulator
• Organism(s): Halalkalibacterium halodurans
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-07-28 Released: 2010-08-11 
• Deposition Author(s): Stein, A.J., Mack, J., Buck, K., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.45 Å
• R-Value Free: 0.269 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 

Literature

The Crystal Structure of the GAF domain of a two-component sensor histidine kinase from Bacillus halodurans to 2.45A

Stein, A.J., Mack, J., Buck, K., Joachimiak, A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 3 assigned by authors.

Macromolecule Content

• Total Structure Weight: 38.5 kDa 
• Atom Count: 2,328 
• Modelled Residue Count: 289 
• Deposited Residue Count: 330 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sensor protein	A, B	165	Halalkalibacterium halodurans	Mutation(s): 0  Gene Names: cckA, BH0536 EC: 2.7.13.3
UniProt
Find proteins for Q9KFE5 (Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125)) Explore Q9KFE5  Go to UniProtKB:  Q9KFE5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	C [auth A], D [auth B], E [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

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: 2.45 Å
• R-Value Free: 0.269 
• R-Value Work: 0.221 
• R-Value Observed: 0.223 
• Space Group: P 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.961	α = 90
b = 96.961	β = 90
c = 104.695	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	phasing
SHELX	phasing
MLPHARE	phasing
DM	phasing
RESOLVE	phasing
Coot	model building

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-08-11 
Deposition Author(s): Stein, A.J., Mack, J., Buck, K., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2010-08-11
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description