5DZ8

Streptococcus agalactiae AgI/II polypeptide BspA variable (V) domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.41 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 

wwPDB Validation 3D Report Full Report


This is version 1.2 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
  • Structures With Same Primary Citation

  • 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, angela.nobbs@bristol.ac.uk.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BspA (BspA_V)
A, B
169Streptococcus agalactiae NEM316Mutation(s): 0 
Gene Names: gbs1143
Find proteins for Q8E589 (Streptococcus agalactiae serotype III (strain NEM316))
Go to UniProtKB:  Q8E589
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PEG
Query on PEG

Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download CCD File 
A
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
ACT
Query on ACT

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
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: 2.41 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.177 
  • R-Value Observed: 0.180 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.14α = 90
b = 34.42β = 127.31
c = 92.6γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
PHENIXphasing
Cootmodel building

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • 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