2R78 | pdb_00002r78

Crystal structure of a domain of the sensory box sensor histidine kinase/response regulator from Geobacter sulfurreducens

• PDB DOI: https://doi.org/10.2210/pdb2R78/pdb

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


• Deposited: 2007-09-07 Released: 2007-09-25 
• Deposition Author(s): Zhang, R., Sather, A., Clancy, S., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.60 Å
• R-Value Free: 
  0.221 (Depositor), 0.225 (DCC) 
• R-Value Work: 
  0.179 (Depositor), 0.184 (DCC) 
• R-Value Observed: 
  0.181 (Depositor) 

Literature

The crystal structure of a domain of the sensory box sensor histidine kinase/response regulator from Geobacter sulfurreducens.

Zhang, R., Sather, A., Clancy, S., 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)

Biological Assembly 2  

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

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

Macromolecule Content 

• Total Structure Weight: 52.11 kDa 
• Atom Count: 4,088 
• Modeled Residue Count: 460 
• Deposited Residue Count: 468 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sensor protein	A, B, C, D	117	Geobacter sulfurreducens PCA	Mutation(s): 0  Gene Names: GSU1285 EC: 2.7.13.3
UniProt
Find proteins for Q74DN1 (Geobacter sulfurreducens (strain ATCC 51573 / DSM 12127 / PCA)) Explore Q74DN1  Go to UniProtKB:  Q74DN1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	E [auth A], F [auth A], G [auth B], H [auth B], I [auth B], J [auth C], K [auth C], L [auth D], M [auth D], N [auth D]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

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: 1.60 Å
• R-Value Free:  0.221 (Depositor), 0.225 (DCC) 
• R-Value Work:  0.179 (Depositor), 0.184 (DCC) 
• R-Value Observed: 0.181 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.248	α = 90
b = 62.501	β = 94.82
c = 71.203	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-09-25 
Deposition Author(s): Zhang, R., Sather, A., Clancy, S., 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