3LUQ | pdb_00003luq

The Crystal Structure of a PAS Domain from a Sensory Box Histidine Kinase Regulator from Geobacter sulfurreducens to 2.5A

• PDB DOI: https://doi.org/10.2210/pdb3LUQ/pdb

• Classification: TRANSFERASE
• Organism(s): Geobacter sulfurreducens PCA
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2010-02-18 Released: 2010-03-16 
• Deposition Author(s): Stein, A.J., Weger, A., Duggan, E., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.49 Å
• R-Value Free: 
  0.279 (Depositor), 0.280 (DCC) 
• R-Value Work: 
  0.228 (Depositor), 0.236 (DCC) 
• R-Value Observed: 
  0.231 (Depositor) 

Literature

The Crystal Structure of a PAS Domain from a Sensory Box Histidine Kinase Regulator from Geobacter sulfurreducens to 2.5A

Stein, A.J., Weger, A., Duggan, E., Clancy, S., 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.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 3-mer - A3 

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 55.24 kDa 
• Atom Count: 3,658 
• Modeled Residue Count: 450 
• Deposited Residue Count: 456 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sensor protein	A, B, C, D	114	Geobacter sulfurreducens PCA	Mutation(s): 0  Gene Names: GSU1414 EC: 2.7.13.3
UniProt
Find proteins for Q74DA3 (Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA)) Explore Q74DA3  Go to UniProtKB:  Q74DA3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PGE	G [auth A], I [auth B], J [auth B], K [auth C], L [auth C]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
SO4	E [auth A], F [auth A], H [auth B]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

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: 2.49 Å
• R-Value Free:  0.279 (Depositor), 0.280 (DCC) 
• R-Value Work:  0.228 (Depositor), 0.236 (DCC) 
• R-Value Observed: 0.231 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.545	α = 90
b = 71.971	β = 113.05
c = 67.374	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-03-16 
Deposition Author(s): Stein, A.J., Weger, A., Duggan, E., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2010-03-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary