5LNL

Crystal structure of Hsf 1608-1749 putative domain 1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.296 

Starting Model: experimental
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This is version 1.2 of the entry. See complete history


Literature

The crystal structure of PD1, a Haemophilus surface fibril domain.

Wright, J.Thomsen, M.Kolodziejczyk, R.Ridley, J.Sinclair, J.Carrington, G.Singh, B.Riesbeck, K.Goldman, A.

(2017) Acta Crystallogr F Struct Biol Commun 73: 101-108

  • DOI: https://doi.org/10.1107/S2053230X17001406
  • Primary Citation of Related Structures:  
    5LNL

  • PubMed Abstract: 

    The Haemophilus surface fibril (Hsf) is an unusually large trimeric autotransporter adhesin (TAA) expressed by the most virulent strains of H. influenzae. Hsf is known to mediate adhesion between pathogen and host, allowing the establishment of potentially deadly diseases such as epiglottitis, meningitis and pneumonia. While recent research has suggested that this TAA might adopt a novel `hairpin-like' architecture, the characterization of Hsf has been limited to in silico modelling and electron micrographs, with no high-resolution structural data available. Here, the crystal structure of Hsf putative domain 1 (PD1) is reported at 3.3 Å resolution. The structure corrects the previous domain annotation by revealing the presence of an unexpected N-terminal TrpRing domain. PD1 represents the first Hsf domain to be solved, and thus paves the way for further research on the `hairpin-like' hypothesis.


  • Organizational Affiliation

    Astbury Centre for Structural Molecular Biology, School of Biomedical Science, University of Leeds, Leeds LS2 9JT, England.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Hsf
A, B, C, D, E
A, B, C, D, E, F, G, H, I
151Haemophilus influenzaeMutation(s): 0 
Gene Names: hsf
UniProt
Find proteins for P71401 (Haemophilus influenzae)
Explore P71401 
Go to UniProtKB:  P71401
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP71401
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.334 
  • R-Value Work: 0.296 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 128.438α = 90
b = 50.4β = 101.94
c = 256.796γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-02-15
    Type: Initial release
  • Version 1.1: 2017-03-01
    Changes: Database references
  • Version 1.2: 2024-01-10
    Changes: Data collection, Database references, Refinement description