5DZ9

Streptococcus agalactiae AgI/II polypeptide BspA C-terminal domain (Mut)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structural and Functional Analysis of Cell Wall-anchored Polypeptide Adhesin BspA in Streptococcus agalactiae.

Rego, S.Heal, T.J.Pidwill, G.R.Till, M.Robson, A.Lamont, R.J.Sessions, R.B.Jenkinson, H.F.Race, P.R.Nobbs, A.H.

(2016) J Biol Chem 291: 15985-16000

  • DOI: https://doi.org/10.1074/jbc.M116.726562
  • Primary Citation of Related Structures:  
    5DZ8, 5DZ9, 5DZA

  • PubMed Abstract: 

    Streptococcus agalactiae (group B Streptococcus, GBS) is the predominant cause of early-onset infectious disease in neonates and is responsible for life-threatening infections in elderly and immunocompromised individuals. Clinical manifestations of GBS infection include sepsis, pneumonia, and meningitis. Here, we describe BspA, a deviant antigen I/II family polypeptide that confers adhesive properties linked to pathogenesis in GBS. Heterologous expression of BspA on the surface of the non-adherent bacterium Lactococcus lactis confers adherence to scavenger receptor gp340, human vaginal epithelium, and to the fungus Candida albicans Complementary crystallographic and biophysical characterization of BspA reveal a novel β-sandwich adhesion domain and unique asparagine-dependent super-helical stalk. Collectively, these findings establish a new bacterial adhesin structure that has in effect been hijacked by a pathogenic Streptococcus species to provide competitive advantage in human mucosal infections.


  • Organizational Affiliation

    From the School of Oral and Dental Sciences, University of Bristol, Bristol BS1 2LY, United Kingdom, the School of Biochemistry, University of Bristol, Bristol BS8 1TD, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BspA334Streptococcus agalactiae NEM316Mutation(s): 1 
Gene Names: gbs1143
UniProt
Find proteins for Q8E589 (Streptococcus agalactiae serotype III (strain NEM316))
Explore Q8E589 
Go to UniProtKB:  Q8E589
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8E589
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.09α = 90
b = 48.24β = 90
c = 234.13γ = 90
Software Package:
Software NamePurpose
PHASERphasing
Cootmodel building
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-06-22
    Type: Initial release
  • Version 1.1: 2016-06-29
    Changes: Database references
  • Version 1.2: 2016-08-10
    Changes: Database references
  • Version 1.3: 2019-02-20
    Changes: Advisory, Data collection, Derived calculations
  • Version 1.4: 2019-07-10
    Changes: Data collection
  • Version 1.5: 2024-01-10
    Changes: Data collection, Database references, Refinement description