2HIL

Structure of the Neisseria gonorrhoeae Type IV pilus filament from x-ray crystallography and electron cryomicroscopy


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 12.5 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

Type IV Pilus Structure by Cryo-Electron Microscopy and Crystallography: Implications for Pilus Assembly and Functions.

Craig, L.Volkmann, N.Arvai, A.S.Pique, M.E.Yeager, M.Egelman, E.H.Tainer, J.A.

(2006) Mol.Cell 23: 651-662

  • DOI: 10.1016/j.molcel.2006.07.004
  • Primary Citation of Related Structures:  2HI2

  • PubMed Abstract: 
  • Type IV pili (T4P) are long, thin, flexible filaments on bacteria that undergo assembly-disassembly from inner membrane pilin subunits and exhibit astonishing multifunctionality. Neisseria gonorrhoeae (gonococcal or GC) T4P are prototypic virulence f ...

    Type IV pili (T4P) are long, thin, flexible filaments on bacteria that undergo assembly-disassembly from inner membrane pilin subunits and exhibit astonishing multifunctionality. Neisseria gonorrhoeae (gonococcal or GC) T4P are prototypic virulence factors and immune targets for increasingly antibiotic-resistant human pathogens, yet detailed structures are unavailable for any T4P. Here, we determined a detailed experimental GC-T4P structure by quantitative fitting of a 2.3 A full-length pilin crystal structure into a 12.5 A resolution native GC-T4P reconstruction solved by cryo-electron microscopy (cryo-EM) and iterative helical real space reconstruction. Spiraling three-helix bundles form the filament core, anchor the globular heads, and provide strength and flexibility. Protruding hypervariable loops and posttranslational modifications in the globular head shield conserved functional residues in pronounced grooves, creating a surprisingly corrugated pilus surface. These results clarify T4P multifunctionality and assembly-disassembly while suggesting unified assembly mechanisms for T4P, archaeal flagella, and type II secretion system filaments.


    Organizational Affiliation

    Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Fimbrial protein
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R
158Neisseria gonorrhoeaeGene Names: pilE1
Find proteins for P02974 (Neisseria gonorrhoeae)
Go to UniProtKB:  P02974
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OPE
Query on OPE

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R
PHOSPHORIC ACID MONO-(2-AMINO-ETHYL) ESTER
COLAMINE PHOSPHORIC ACID
C2 H8 N O4 P
SUHOOTKUPISOBE-UHFFFAOYSA-N
 Ligand Interaction
DT6
Query on DT6

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Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R
2,4-bis(acetylamino)-2,4-dideoxy-beta-D-glucopyranose
C10 H18 N2 O6
VNVBLPSANNIIQI-GRDBIXFFSA-N
 Ligand Interaction
GLA
Query on GLA

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Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R
ALPHA D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-PHYPRBDBSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MEA
Query on MEA
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R
L-PEPTIDE LINKINGC10 H13 N O2PHE
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 12.5 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-09-12
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance