7LHH

Cryo-EM structure of E. coli P pilus tip assembly intermediate PapC-PapD-PapK-PapG in the second conformation


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Processive dynamics of the usher assembly platform during uropathogenic Escherichia coli P pilus biogenesis.

Du, M.Yuan, Z.Werneburg, G.T.Henderson, N.S.Chauhan, H.Kovach, A.Zhao, G.Johl, J.Li, H.Thanassi, D.G.

(2021) Nat Commun 12: 5207-5207

  • DOI: https://doi.org/10.1038/s41467-021-25522-6
  • Primary Citation of Related Structures:  
    7LHG, 7LHH, 7LHI

  • PubMed Abstract: 

    Uropathogenic Escherichia coli assemble surface structures termed pili or fimbriae to initiate infection of the urinary tract. P pili facilitate bacterial colonization of the kidney and pyelonephritis. P pili are assembled through the conserved chaperone-usher pathway. Much of the structural and functional understanding of the chaperone-usher pathway has been gained through investigations of type 1 pili, which promote binding to the bladder and cystitis. In contrast, the structural basis for P pilus biogenesis at the usher has remained elusive. This is in part due to the flexible and variable-length P pilus tip fiber, creating structural heterogeneity, and difficulties isolating stable P pilus assembly intermediates. Here, we circumvent these hindrances and determine cryo-electron microscopy structures of the activated PapC usher in the process of secreting two- and three-subunit P pilus assembly intermediates, revealing processive steps in P pilus biogenesis and capturing new conformational dynamics of the usher assembly machine.


  • Organizational Affiliation

    Department of Structural Biology, Van Andel Institute, Grand Rapids, MI, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
P fimbrial usher protein PapCA [auth C]809Escherichia coliMutation(s): 0 
Gene Names: papCGE554_23855HJR83_004260
Membrane Entity: Yes 
UniProt
Find proteins for P07110 (Escherichia coli)
Explore P07110 
Go to UniProtKB:  P07110
Entity Groups  
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UniProt GroupP07110
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Chaperone protein PapDB [auth D]218Escherichia coliMutation(s): 0 
Gene Names: papD
Membrane Entity: Yes 
UniProt
Find proteins for P15319 (Escherichia coli)
Explore P15319 
Go to UniProtKB:  P15319
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UniProt GroupP15319
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Fimbrial adapter PapKC [auth K]178Escherichia coliMutation(s): 0 
Gene Names: papK
Membrane Entity: Yes 
UniProt
Find proteins for P62532 (Escherichia coli)
Explore P62532 
Go to UniProtKB:  P62532
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UniProt GroupP62532
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
P fimbria tip G-adhesin PapG-IID [auth G]336Escherichia coliMutation(s): 0 
Gene Names: papG-IIHJS42_005082
Membrane Entity: Yes 
UniProt
Find proteins for Q47450 (Escherichia coli)
Explore Q47450 
Go to UniProtKB:  Q47450
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UniProt GroupQ47450
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM110387
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM131754

Revision History  (Full details and data files)

  • Version 1.0: 2021-08-11
    Type: Initial release
  • Version 1.1: 2021-09-15
    Changes: Database references
  • Version 1.2: 2024-05-29
    Changes: Data collection