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 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

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

  • 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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chemotaxis protein CheY
A
123Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)Gene Names: cheY
Find proteins for Q56312 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Go to UniProtKB:  Q56312
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Flagellar motor switch protein FliM
B
20Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)Gene Names: fliM
Find proteins for Q9WZE6 (Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099))
Go to UniProtKB:  Q9WZE6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
BEF
Query on BEF

Download SDF File 
Download CCD File 
A
BERYLLIUM TRIFLUORIDE ION
Be F3
OGIAHMCCNXDTIE-UHFFFAOYSA-K
 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 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 52.802α = 90.00
b = 92.802β = 90.00
c = 31.596γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
HKL-2000data scaling
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



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