3HLR | pdb_00003hlr

Donor strand complemented FaeG of F4ad fimbriae

• PDB DOI: https://doi.org/10.2210/pdb3HLR/pdb

• Classification: CELL ADHESION
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2009-05-28 Released: 2009-10-20 
• Deposition Author(s): Van Molle, I., Moonens, K., Garcia-Pino, A., Buts, L., Bouckaert, J., De Greve, H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 
  0.294 (Depositor), 0.291 (DCC) 
• R-Value Work: 
  0.235 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.238 (Depositor) 

Starting Model: experimental

Literature

Structural and thermodynamic characterization of pre- and postpolymerization states in the F4 fimbrial subunit FaeG

Van Molle, I., Moonens, K., Garcia-Pino, A., Buts, L., De Kerpel, M., Wyns, L., Bouckaert, J., De Greve, H.

(2009) J Mol Biology 394: 957-967

• PubMed: 19799915 
• DOI: https://doi.org/10.1016/j.jmb.2009.09.059
• Primary Citation Related Structures: 
  3GEA, 3GEW, 3GFU, 3GGH, 3HLR


• PubMed Abstract: 
  

  Enterotoxigenic Escherichia coli expressing F4 fimbriae are the major cause of porcine colibacillosis and are responsible for significant death and morbidity in neonatal and postweaned piglets. Via the chaperone-usher pathway, F4 fimbriae are assembled into thin, flexible polymers mainly composed of the single-domain adhesin FaeG. The F4 fimbrial system has been labeled eccentric because the F4 pilins show some features distinct from the features of pilins of other chaperone-usher-assembled structures. In particular, FaeG is much larger than other pilins (27 versus approximately 17 kDa), grafting an additional carbohydrate binding domain on the common immunoglobulin-like core. Structural data of FaeG during different stages of the F4 fimbrial biogenesis process, combined with differential scanning calorimetry measurements, confirm the general principles of the donor strand complementation/exchange mechanisms taking place during pilus biogenesis via the chaperone-usher pathway.

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Organizational Affiliation: 
• Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 28.34 kDa 
• Atom Count: 2,077 
• Modeled Residue Count: 258 
• Deposited Residue Count: 276 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
K88 fimbrial protein AD	A	276	Escherichia coli	Mutation(s): 0  Gene Names: faeG
UniProt
Find proteins for P14191 (Escherichia coli) Explore P14191  Go to UniProtKB:  P14191

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free:  0.294 (Depositor), 0.291 (DCC) 
• R-Value Work:  0.235 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.238 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 37.29	α = 90
b = 39.73	β = 101.24
c = 76.37	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
PHENIX	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-10-20 
Deposition Author(s): Van Molle, I., Moonens, K., Garcia-Pino, A., Buts, L., Bouckaert, J., De Greve, H.

Revision History  

• Version 1.0: 2009-10-20
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2014-02-05
  Changes: Database references
• Version 1.3: 2017-08-09
  Changes: Refinement description, Source and taxonomy
• Version 1.4: 2017-10-04
  Changes: Data collection, Experimental preparation
• Version 1.5: 2023-11-01
  Changes: Data collection, Database references, Refinement description
• Version 1.6: 2024-03-20
  Changes: Source and taxonomy