1K0S | pdb_00001k0s

Solution structure of the chemotaxis protein CheW from the thermophilic organism Thermotoga maritima

• PDB DOI: https://doi.org/10.2210/pdb1K0S/pdb
• BMRB: 4984

• Classification: SIGNALING PROTEIN
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-09-20 Released: 2002-02-06 
• Deposition Author(s): Griswold, I.J., Zhou, H., Swanson, R.V., Simon, M.I., Dahlquist, F.W.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

The solution structure and interactions of CheW from Thermotoga maritima.

Griswold, I.J., Zhou, H., Matison, M., Swanson, R.V., McIntosh, L.P., Simon, M.I., Dahlquist, F.W.

(2002) Nat Struct Biol 9: 121-125

• PubMed: 11799399 
• DOI: https://doi.org/10.1038/nsb753
• Primary Citation Related Structures: 
  1K0S


• PubMed Abstract: 
  

  Using protein from the hyperthermophile Thermotoga maritima, we have determined the solution structure of CheW, an essential component in the formation of the bacterial chemotaxis signaling complex. The overall fold is similar to the regulatory domain of the chemotaxis kinase CheA. In addition, interactions of CheW with CheA were monitored by nuclear magnetic resonance (NMR) techniques. The chemical shift perturbation data show the probable contacts that CheW makes with CheA. In combination with previous genetic data, the structure also suggests a possible binding site for the chemotaxis receptor. These results provide a structural basis for a model in which CheW acts as a molecular bridge between CheA and the cytoplasmic tails of the receptor.

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Organizational Affiliation: 
• Institute of Molecular Biology, Department of Chemistry, University of Oregon Eugene, Oregon 97403, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 16.98 kDa 
• Atom Count: 1,191 
• Modeled Residue Count: 151 
• Deposited Residue Count: 151 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHEMOTAXIS PROTEIN CHEW	A	151	Thermotoga maritima	Mutation(s): 0  Gene Names: CheW
UniProt
Find proteins for Q56311 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q56311  Go to UniProtKB:  Q56311

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-02-06 
Deposition Author(s): Griswold, I.J., Zhou, H., Swanson, R.V., Simon, M.I., Dahlquist, F.W.

Revision History  

• Version 1.0: 2002-02-06
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-02-23
  Changes: Database references, Derived calculations, Experimental preparation
• Version 1.4: 2024-05-22
  Changes: Data collection