1OJG | pdb_00001ojg

Sensory domain of the membraneous two-component fumarate sensor DcuS of E. coli

• PDB DOI: https://doi.org/10.2210/pdb1OJG/pdb

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


• Deposited: 2003-07-10 Released: 2003-08-15 
• Deposition Author(s): Pappalardo, L., Janausch, I.G., Vijayan, V., Zientz, E., Junker, J., Peti, W., Zweckstetter, M., Unden, G., Griesinger, C.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: LOWEST TOTAL ENERGY 

Literature

The NMR structure of the sensory domain of the membranous two-component fumarate sensor (histidine protein kinase) DcuS of Escherichia coli.

Pappalardo, L., Janausch, I.G., Vijayan, V., Zientz, E., Junker, J., Peti, W., Zweckstetter, M., Unden, G., Griesinger, C.

(2003) J Biological Chem 278: 39185-39188

• PubMed: 12907689 
• DOI: https://doi.org/10.1074/jbc.C300344200
• Primary Citation Related Structures: 
  1OJG


• PubMed Abstract: 
  

  The structure of the water-soluble, periplasmic domain of the fumarate sensor DcuS (DcuS-pd) has been determined by NMR spectroscopy in solution. DcuS is a prototype for a sensory histidine kinase with transmembrane signal transfer. DcuS belongs to the CitA family of sensors that are specific for sensing di- and tricarboxylates. The periplasmic domain is folded autonomously and shows helices at the N and the C terminus, suggesting direct linking or connection to helices in the two transmembrane regions. The structure constitutes a novel fold. The nearest structural neighbor is the Per-Arnt-Sim domain of the photoactive yellow protein that binds small molecules covalently. Residues Arg107, His110, and Arg147 are essential for fumarate sensing and are found clustered together. The structure constitutes the first periplasmic domain of a two component sensory system and is distinctly different from the aspartate sensory domain of the Tar chemotaxis sensor.

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Organizational Affiliation: 
• Max Planck Institut für Biophysikalische Chemie, Am Fassberg 11, D-37077 Göttingen, Germany.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 15.1 kDa 
• Atom Count: 1,059 
• Modeled Residue Count: 136 
• Deposited Residue Count: 136 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SENSOR PROTEIN DCUS	A	136	Escherichia coli BL21(DE3)	Mutation(s): 0  EC: 2.7.3 (PDB Primary Data), 2.7.13.3 (UniProt)
UniProt
Find proteins for P0AEC8 (Escherichia coli (strain K12)) Explore P0AEC8  Go to UniProtKB:  P0AEC8

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 10 
• Selection Criteria: LOWEST TOTAL ENERGY 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-08-15 
Deposition Author(s): Pappalardo, L., Janausch, I.G., Vijayan, V., Zientz, E., Junker, J., Peti, W., Zweckstetter, M., Unden, G., Griesinger, C.

Revision History  

• Version 1.0: 2003-08-15
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2018-01-17
  Changes: Database references, Source and taxonomy, Structure summary
• Version 1.4: 2024-05-15
  Changes: Data collection, Database references, Other