2X12

pH-induced modulation of Streptococcus parasanguinis adhesion by Fap1 fimbriae

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Structural Insights Into Serine-Rich Fimbriae from Gram-Positive Bacteria.

Ramboarina, S., Garnett, J.A., Zhou, M., Li, Y., Peng, Z., Taylor, J.D., Lee, W.-C., Bodey, A., Murray, J.W., Alguel, Y., Bergeron, J., Bardiaux, B., Sawyer, E., Isaacson, R., Tagliaferri, C., Cota, E., Nilges, M., Simpson, P., Ruiz, T., Wu, H., Matthews, S.

(2010) J Biol Chem 285: 32446

  • DOI: 10.1074/jbc.M110.128165
  • Primary Citation of Related Structures:  
    2KUB, 2X12

  • PubMed Abstract: 

    • The serine-rich repeat family of fimbriae play important roles in the pathogenesis of streptococci and staphylococci. Despite recent attention, their finer structural details and precise adhesion mechanisms have yet to be determined. Fap1 (Fimbriae-associated protein 1) is the major structural subunit of serine-rich repeat fimbriae from Streptococcus parasanguinis and plays an essential role in fimbrial biogenesis, adhesion, and the early stages of dental plaque formation ...

    The serine-rich repeat family of fimbriae play important roles in the pathogenesis of streptococci and staphylococci. Despite recent attention, their finer structural details and precise adhesion mechanisms have yet to be determined. Fap1 (Fimbriae-associated protein 1) is the major structural subunit of serine-rich repeat fimbriae from Streptococcus parasanguinis and plays an essential role in fimbrial biogenesis, adhesion, and the early stages of dental plaque formation. Combining multidisciplinary, high resolution structural studies with biological assays, we provide new structural insight into adhesion by Fap1. We propose a model in which the serine-rich repeats of Fap1 subunits form an extended structure that projects the N-terminal globular domains away from the bacterial surface for adhesion to the salivary pellicle. We also uncover a novel pH-dependent conformational change that modulates adhesion and likely plays a role in survival in acidic environments.

    Organizational Affiliation: 

    Department of Biological Sciences, Centre for Structural Biology, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
FIMBRIAE-ASSOCIATED PROTEIN FAP1A, B348Streptococcus parasanguinisMutation(s): 0 
Gene Names: fap1
UniProt
Find proteins for A1C3L3 (Streptococcus parasanguinis)
Explore A1C3L3 
Go to UniProtKB:  A1C3L3
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE		A, BL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 108.668α = 90
b = 108.668β = 90
c = 126.252γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
autoSHARPphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-07-07
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-05-08
    Changes: Data collection, Derived calculations, Experimental preparation, Other