1IO1

CRYSTAL STRUCTURE OF F41 FRAGMENT OF FLAGELLIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling

Samatey, F.A.Imada, K.Nagashima, S.Vondervisz, F.Kumasaka, T.Yamamoto, M.Namba, K.

(2001) Nature 410: 331-337

  • DOI: 10.1038/35066504
  • Primary Citation of Related Structures:  
    1IO1

  • PubMed Abstract: 
  • The bacterial flagellar filament is a helical propeller constructed from 11 protofilaments of a single protein, flagellin. The filament switches between left- and right-handed supercoiled forms when bacteria switch their swimming mode between running ...

    The bacterial flagellar filament is a helical propeller constructed from 11 protofilaments of a single protein, flagellin. The filament switches between left- and right-handed supercoiled forms when bacteria switch their swimming mode between running and tumbling. Supercoiling is produced by two different packing interactions of flagellin called L and R. In switching from L to R, the intersubunit distance ( approximately 52 A) along the protofilament decreases by 0.8 A. Changes in the number of L and R protofilaments govern supercoiling of the filament. Here we report the 2.0 A resolution crystal structure of a Salmonella flagellin fragment of relative molecular mass 41,300. The crystal contains pairs of antiparallel straight protofilaments with the R-type repeat. By simulated extension of the protofilament model, we have identified possible switch regions responsible for the bi-stable mechanical switch that generates the 0.8 A difference in repeat distance.


    Organizational Affiliation

    Protonic NanoMachine Project, ERATO, JST, 3-4 Hikaridai, Seika, Kyoto 619-0237, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PHASE 1 FLAGELLINA398Salmonella enterica subsp. enterica serovar TyphimuriumMutation(s): 0 
Find proteins for P06179 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Explore P06179 
Go to UniProtKB:  P06179
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.234 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.75α = 90
b = 36.44β = 91.15
c = 118.35γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
SOLVEphasing
X-PLORrefinement
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-04-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance