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 

wwPDB Validation 3D Report Full Report


This is version 1.3 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: 10.1074/jbc.M116.726562
  • Primary Citation of Related Structures:  

  • 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 G ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BspA
A
334Streptococcus agalactiae serotype III (strain NEM316)Mutation(s): 1 
Find proteins for Q8E589 (Streptococcus agalactiae serotype III (strain NEM316))
Go to UniProtKB:  Q8E589
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.89 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.195 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 38.090α = 90.00
b = 48.240β = 90.00
c = 234.130γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
Cootmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-06-22
    Type: Initial release
  • Version 1.1: 2016-06-29
    Type: Database references
  • Version 1.2: 2016-08-10
    Type: Database references
  • Version 1.3: 2019-02-20
    Type: Advisory, Data collection, Derived calculations