3UR1

The structure of a ternary complex between CheA domains P4 and P5 with CheW and with a truncated fragment of TM14, a chemoreceptor analog from Thermotoga maritima.

• PDB DOI: https://doi.org/10.2210/pdb3UR1/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-11-21 Released: 2012-03-07 
• Deposition Author(s): Li, X., Crane, B.R., Bilwes, A.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 4.50 Å
• R-Value Free: 0.291 
• R-Value Work: 0.266 
• R-Value Observed: 0.266 

Literature

The structure of native bacterial chemoreceptor arrays

Breigel, A., Li, X., Bilwes, A.M., Hugues, K.T., Jensen, G.J., Crane, B.R.

(2012) Proc Natl Acad Sci U S A 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A2B1C1 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 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 70.17 kDa 
• Atom Count: 4,488 
• Modelled Residue Count: 572 
• Deposited Residue Count: 629 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chemotaxis protein CheA	A	320	Thermotoga maritima	Mutation(s): 0  Gene Names: cheA, TM_0702 EC: 2.7.13.3
UniProt
Find proteins for Q56310 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q56310  Go to UniProtKB:  Q56310

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Chemotaxis protein CheW	B	139	Thermotoga maritima	Mutation(s): 0  Gene Names: cheW, TM_0701
UniProt
Find proteins for Q56311 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q56311  Go to UniProtKB:  Q56311

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Methyl-accepting chemotaxis protein	C, D	85	Thermotoga maritima	Mutation(s): 0  Gene Names: TM_0014
UniProt
Find proteins for Q7DFA3 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q7DFA3  Go to UniProtKB:  Q7DFA3

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 4.50 Å
• R-Value Free: 0.291 
• R-Value Work: 0.266 
• R-Value Observed: 0.266 
• Space Group: H 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 213.991	α = 90
b = 213.991	β = 90
c = 208.192	γ = 120

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-03-07 
Deposition Author(s): Li, X., Crane, B.R., Bilwes, A.M.

Revision History  

• Version 1.0: 2012-03-07
  Type: Initial release
  
• Version 1.1: 2024-02-28
  Changes: Data collection, Database references