5WJV

Cryo-EM structure of B. subtilis flagellar filaments A233V

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.50 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

A structural model of flagellar filament switching across multiple bacterial species.

Wang, F., Burrage, A.M., Postel, S., Clark, R.E., Orlova, A., Sundberg, E.J., Kearns, D.B., Egelman, E.H.

(2017) Nat Commun 8: 960-960

  • DOI: 10.1038/s41467-017-01075-5
  • Structures With Same Primary Citation

  • PubMed Abstract: 

    • The bacterial flagellar filament has long been studied to understand how a polymer composed of a single protein can switch between different supercoiled states with high cooperativity. Here we present near-atomic resolution cryo-EM structures for fla ...

    The bacterial flagellar filament has long been studied to understand how a polymer composed of a single protein can switch between different supercoiled states with high cooperativity. Here we present near-atomic resolution cryo-EM structures for flagellar filaments from both Gram-positive Bacillus subtilis and Gram-negative Pseudomonas aeruginosa. Seven mutant flagellar filaments in B. subtilis and two in P. aeruginosa capture two different states of the filament. These reliable atomic models of both states reveal conserved molecular interactions in the interior of the filament among B. subtilis, P. aeruginosa and Salmonella enterica. Using the detailed information about the molecular interactions in two filament states, we successfully predict point mutations that shift the equilibrium between those two states. Further, we observe the dimerization of P. aeruginosa outer domains without any perturbation of the conserved interior of the filament. Our results give new insights into how the flagellin sequence has been "tuned" over evolution.Bacterial flagellar filaments are composed almost entirely of a single protein-flagellin-which can switch between different supercoiled states in a highly cooperative manner. Here the authors present near-atomic resolution cryo-EM structures of nine flagellar filaments, and begin to shed light on the molecular basis of filament switching.

    Organizational Affiliation: 

    Department of Biochemistry and Molecular Genetics, University of Virginia School of Medicine, Charlottesville, VA, 22908, USA. egelman@virginia.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Flagellin
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t
304Bacillus subtilisMutation(s): 2 
Gene Names: B4417_3365, A3772_19030, BS16045_03714
Find proteins for A0A162QQD4 (Bacillus subtilis)
Go to UniProtKB:  A0A162QQD4
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 5.50 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM122510
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM093030

Revision History 

  • Version 1.0: 2017-10-25
    Type: Initial release
  • Version 1.1: 2017-11-01
    Changes: Database references
  • Version 1.2: 2020-01-01
    Changes: Author supporting evidence