3A5X | pdb_00003a5x

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

• PDB DOI: https://doi.org/10.2210/pdb3A5X/pdb
• EM Map EMD-1641: EMDB EMDataResource

• Classification: STRUCTURAL PROTEIN, MOTOR PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Mutation(s): No 


• Deposited: 2009-08-13 Released: 2010-03-16 
• Deposition Author(s): Maki-Yonekura, S., Yonekura, K., Namba, K.

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.00 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Conformational change of flagellin for polymorphic supercoiling of the flagellar filament

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

(2010) Nat Struct Mol Biol 17: 417-422

• PubMed: 20228803 
• DOI: https://doi.org/10.1038/nsmb.1774
• Primary Citation Related Structures: 
  3A5X


• PubMed Abstract: 
  

  The bacterial flagellar filament is a helical propeller rotated by the flagellar motor for bacterial locomotion. The filament is a supercoiled assembly of a single protein, flagellin, and is formed by 11 protofilaments. For bacterial taxis, the reversal of motor rotation switches the supercoil between left- and right-handed, both of which arise from combinations of two distinct conformations and packing interactions of the L-type and R-type protofilaments. Here we report an atomic model of the L-type straight filament by electron cryomicroscopy and helical image analysis. Comparison with the R-type structure shows interesting features: an orientation change of the outer core domains (D1) against the inner core domains (D0) showing almost invariant orientation and packing, a conformational switching within domain D1, and the conformational flexibility of domains D0 and D1 with their spoke-like connection for tight molecular packing.

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Organizational Affiliation: 
• Dynamic NanoMachine Project, International Cooperative Research Project, Japan Science and Technology Agency, Suita, Osaka, Japan.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 51.54 kDa 
• Atom Count: 3,616 
• Modeled Residue Count: 494 
• Deposited Residue Count: 494 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Flagellin	A	494	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0
UniProt
Find proteins for P06179 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P06179  Go to UniProtKB:  P06179

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.00 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	Custom

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-03-16 
Deposition Author(s): Maki-Yonekura, S., Yonekura, K., Namba, K.

Revision History  

• Version 1.0: 2010-03-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2013-10-16
  Changes: Database references
• Version 1.3: 2019-12-18
  Changes: Author supporting evidence, Data collection, Database references
• Version 1.4: 2024-03-13
  Changes: Data collection, Database references