4IGA

The crystal structure of an activated Thermotoga maritima CheY with N-terminal region of FliM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

wwPDB Validation 3D Report Full Report



Literature

The crystal structure of an activated Thermotoga maritima CheY with N-terminal region of FliM.

Ahn, D.R.Song, H.Kim, J.Lee, S.Park, S.Y.

(2013) Int J Biol Macromol 54: 76-83

  • DOI: 10.1016/j.ijbiomac.2012.12.003
  • Primary Citation of Related Structures:  
    4IGA

  • PubMed Abstract: 
  • In bacterial chemotaxis, the levels of phosphorylated CheY in association with FliM determine the sense of the flagella rotation, which in turn controls the bacterial swimming behavior. We report the 1.7Å resolution crystallographic structure of the ...

    In bacterial chemotaxis, the levels of phosphorylated CheY in association with FliM determine the sense of the flagella rotation, which in turn controls the bacterial swimming behavior. We report the 1.7Å resolution crystallographic structure of the Thermotoga maritima BeF(3)(-)-activated CheY in complex with the CheY-binding N-terminal region of FliM. Analysis of the structure in comparison to the previously reported Escherichia coli counterpart reveals that similar regions of H4-β5-H5 in CheY and the helix in FliM are used for the complex interfaces. Our structure also indicates that the correlated movement of Phe101 and Ser82 (F-S coupling) in T. maritima CheY upon phosphorylation and FliM binding, parallels that of Tyr106 and Thr87 (Y-T coupling) demonstrated in E. coli CheY. Furthermore, significant displacements of the β4-H4 loop in both CheYs impose a crucial role of this loop, which can be related to flagellar switch component binding or to propagating changes that is necessary during the CheY-mediated reversal of the motor.


    Organizational Affiliation

    Center for Theragnosis, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chemotaxis protein CheYA123Thermotoga maritima MSB8Mutation(s): 0 
Gene Names: cheYTM_0700
Find proteins for Q56312 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q56312 
Go to UniProtKB:  Q56312
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Flagellar motor switch protein FliMB20Thermotoga maritima MSB8Mutation(s): 0 
Gene Names: fliMTM_0679
Find proteins for Q9WZE6 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Explore Q9WZE6 
Go to UniProtKB:  Q9WZE6
Protein Feature View
Expand
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BEF
Query on BEF

Download CCD File 
A
BERYLLIUM TRIFLUORIDE ION
Be F3
OGIAHMCCNXDTIE-UHFFFAOYSA-K
 Ligand Interaction
MG
Query on MG

Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.802α = 90
b = 92.802β = 90
c = 31.596γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2012-12-17 
  • Released Date: 2013-04-24 
  • Deposition Author(s): Ahn, D.R, Park, S.Y.

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release