2ZF8

Crystal structure of MotY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.290 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Insights into the stator assembly of the Vibrio flagellar motor from the crystal structure of MotY

Kojima, S.Shinohara, A.Terashima, H.Yakushi, T.Sakuma, M.Homma, M.Namba, K.Imada, K.

(2008) Proc.Natl.Acad.Sci.Usa 105: 7696-7701

  • DOI: 10.1073/pnas.0800308105

  • PubMed Abstract: 
  • Rotation of the sodium-driven polar flagellum of Vibrio alginolyticus requires four motor proteins: PomA, PomB, MotX, and MotY. PomA and PomB form a sodium-ion channel in the cytoplasmic membrane that functions as a stator complex to couple sodium-io ...

    Rotation of the sodium-driven polar flagellum of Vibrio alginolyticus requires four motor proteins: PomA, PomB, MotX, and MotY. PomA and PomB form a sodium-ion channel in the cytoplasmic membrane that functions as a stator complex to couple sodium-ion flux with torque generation. MotX and MotY are components of the T-ring, which is located beneath the P-ring of the polar flagellar basal body and is involved in incorporation of the PomA/PomB complex into the motor. Here, we describe the determination of the crystal structure of MotY at 2.9 A resolution. The structure shows two distinct domains: an N-terminal domain (MotY-N) and a C-terminal domain (MotY-C). MotY-N has a unique structure. MotY-C contains a putative peptidoglycan-binding motif that is remarkably similar to those of peptidoglycan-binding proteins, such as Pal and RmpM, but this region is disordered in MotY. Motility assay of cells producing either of the MotY-N and MotY-C fragments and subsequent biochemical analyses indicate that MotY-N is essential for association of the stator units around the rotor, whereas MotY-C stabilizes the association by binding to the peptidoglycan layer. Based on these observations, we propose a model for the mechanism of stator assembly around the rotor.


    Organizational Affiliation

    Division of Biological Science, Graduate School of Science, Nagoya University, Chikusa-Ku, Nagoya 464-8602, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Component of sodium-driven polar flagellar motor
A
278Vibrio alginolyticusMutation(s): 0 
Gene Names: MotY
Find proteins for P74944 (Vibrio alginolyticus)
Go to UniProtKB:  P74944
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.290 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 104.081α = 90.00
b = 104.081β = 90.00
c = 133.103γ = 120.00
Software Package:
Software NamePurpose
ADSCdata collection
SCALAdata scaling
MOSFLMdata reduction
SOLVEphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-07-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance