1UCU

R-type straight flagellar filament made of full-length flagellin


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Complete atomic model of the bacterial flagellar filament by electron cryomicroscopy

Yonekura, K.Maki-Yonekura, S.Namba, K.

(2003) NATURE 424: 643-650

  • DOI: 10.1038/nature01830
  • Also Cited By: 3A5X

  • PubMed Abstract: 
  • The bacterial flagellar filament is a helical propeller for bacterial locomotion. It is a helical assembly of a single protein, flagellin, and its tubular structure is formed by 11 protofilaments in two distinct conformations, L- and R-type, for supe ...

    The bacterial flagellar filament is a helical propeller for bacterial locomotion. It is a helical assembly of a single protein, flagellin, and its tubular structure is formed by 11 protofilaments in two distinct conformations, L- and R-type, for supercoiling. The X-ray crystal structure of a flagellin fragment lacking about 100 terminal residues revealed the protofilament structure, but the full filament structure is still essential for understanding the mechanism of supercoiling and polymerization. Here we report a complete atomic model of the R-type filament by electron cryomicroscopy. A density map obtained from image data up to 4 A resolution shows the feature of alpha-helical backbone and some large side chains. The atomic model built on the map reveals intricate molecular packing and an alpha-helical coiled coil formed by the terminal chains in the inner core of the filament, with its intersubunit hydrophobic interactions having an important role in stabilizing the filament.


    Related Citations: 
    • Structure of the bacterial flagellar protofilament and implications for a switch for supercoiling
      Samatey, F.A.,Imada, K.,Nagashima, S.,Vonderviszt, F.,Kumasaka, T.,Yamamoto, M.,Namba, K.
      (2001) NATURE 410: 331


    Organizational Affiliation

    Protonic NanoMachine Project, ERATO, JST.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
phase 1 Flagellin
A
494Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)Gene Names: fliC (flaF, hag)
Find proteins for P06179 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720))
Go to UniProtKB:  P06179
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 
Software Package:
Software NamePurpose
FX-PLORrefinement
FEX-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-08-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance