6PWB

Rigid body fitting of flagellin FlaB, and flagellar coiling proteins, FcpA and FcpB, into a 10 Angstrom structure of the asymmetric flagellar filament purified from Leptospira biflexa Patoc WT cells resolved via subtomogram averaging


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.83 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

An asymmetric sheath controls flagellar supercoiling and motility in the leptospira spirochete.

Gibson, K.H.Trajtenberg, F.Wunder, E.A.Brady, M.R.San Martin, F.Mechaly, A.Shang, Z.Liu, J.Picardeau, M.Ko, A.Buschiazzo, A.Sindelar, C.V.

(2020) Elife 9

  • DOI: https://doi.org/10.7554/eLife.53672
  • Primary Citation of Related Structures:  
    6PWB

  • PubMed Abstract: 

    Spirochete bacteria, including important pathogens, exhibit a distinctive means of swimming via undulations of the entire cell. Motility is powered by the rotation of supercoiled 'endoflagella' that wrap around the cell body, confined within the periplasmic space. To investigate the structural basis of flagellar supercoiling, which is critical for motility, we determined the structure of native flagellar filaments from the spirochete Leptospira by integrating high-resolution cryo-electron tomography and X-ray crystallography. We show that these filaments are coated by a highly asymmetric, multi-component sheath layer, contrasting with flagellin-only homopolymers previously observed in exoflagellated bacteria. Distinct sheath proteins localize to the filament inner and outer curvatures to define the supercoiling geometry, explaining a key functional attribute of this spirochete flagellum.


  • Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale School of Medicine, New Haven, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Flagellin B1 (FlaB1)265Leptospira biflexa serovar Patoc strain 'Patoc 1 (Paris)Mutation(s): 0 
UniProt
Find proteins for B0SSZ5 (Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris))
Explore B0SSZ5 
Go to UniProtKB:  B0SSZ5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB0SSZ5
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Flagellar coiling protein A (FcpA)237Leptospira biflexa serovar Patoc strain 'Patoc 1 (Paris)Mutation(s): 0 
UniProt
Find proteins for B0STJ8 (Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris))
Explore B0STJ8 
Go to UniProtKB:  B0STJ8
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB0STJ8
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Flagellar coiling protein B (FcpB)221Leptospira biflexa serovar Patoc strain 'Patoc 1 (Paris)Mutation(s): 0 
UniProt
Find proteins for B0SR03 (Leptospira biflexa serovar Patoc (strain Patoc 1 / ATCC 23582 / Paris))
Explore B0SR03 
Go to UniProtKB:  B0SR03
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB0SR03
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 9.83 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONemClarity1.1
MODEL REFINEMENTRosetta3

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Library of Medicine (NIH/NLM)United StatesR01 GM 110530
National Institutes of Health/National Library of Medicine (NIH/NLM)United StatesU01 AI088752
National Institutes of Health/National Library of Medicine (NIH/NLM)United StatesR01 TW009504
National Institutes of Health/National Library of Medicine (NIH/NLM)United StatesR01 AI052473
National Institutes of Health/National Library of Medicine (NIH/NLM)United StatesR01 298 AI121207
Agencia Nacional de Investigacion e Innovacion (ANII)UruguayFCE_3_2016_1_126797
Agencia Nacional de Investigacion e Innovacion (ANII)UruguayALI_1_2014_1_4982
Agencia Nacional de Investigacion e Innovacion (ANII)UruguayFCE_3_2016_1_126797
French National Research AgencyUruguayANR-18-CE15-0027-1
French National Research AgencyUruguayANR-08-300 MIE-018

Revision History  (Full details and data files)

  • Version 1.0: 2020-03-25
    Type: Initial release
  • Version 1.1: 2024-03-20
    Changes: Data collection, Database references, Refinement description