5G5Y

S.pneumoniae ABC-transporter substrate binding protein FusA apo structure

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 

wwPDB Validation   3D Report Full Report



Literature

Structural Basis for Regulation and Specificity of Fructooligosaccharide Import in Streptococcus pneumoniae.

Culurgioni, S., Harris, G., Singh, A.K., King, S.J., Walsh, M.A.

(2017) Structure 25: 79-93

  • DOI: 10.1016/j.str.2016.11.008
  • Primary Citation of Related Structures:  
    5G5Z, 5G5Y, 5G61, 5G60, 5G62

  • PubMed Abstract: 

    • Streptococcus pneumoniae is dependent on carbohydrate uptake for colonization and pathogenesis, and dedicates over a third of its transport systems to their uptake. The ability of the pneumococcus to utilize fructooligosaccharides (FOSs) is attribute ...

    Streptococcus pneumoniae is dependent on carbohydrate uptake for colonization and pathogenesis, and dedicates over a third of its transport systems to their uptake. The ability of the pneumococcus to utilize fructooligosaccharides (FOSs) is attributed to the presence of one of two types of FOS ATP-binding cassette (ABC) transporters. Strains encoding SfuABC are only able to utilize short-chain FOSs, while strains encoding FusABC can utilize both short- and long-chain FOSs. The crystal structures of the substrate-binding protein FusA in its open and closed conformations bound to FOSs, and solution scattering data of SfuA, delineate the structural basis for import of short- and long-chain FOSs. The structure of FusA identifies an EF hand-like calcium-binding motif. This is shown to be essential for translocation of FOSs in FusABC and forms the basis for the definition of a new class of substrate-binding proteins that regulate substrate translocation by calcium.

    Organizational Affiliation: 

    Diamond House, Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, UK; Research Complex at Harwell, Harwell Science and Innovation Campus, Didcot OX11 0FA, UK. Electronic address: martin.walsh@diamond.ac.uk.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ABC TRANSPORTER, SUBSTRATE-BINDING PROTEINA, B494Streptococcus pneumoniae TIGR4Mutation(s): 0 
Gene Names: SP_1796
Find proteins for A0A0H2URD6 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4))
Explore A0A0H2URD6 
Go to UniProtKB:  A0A0H2URD6
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4
Download Ideal Coordinates CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
A, B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
ZN
Query on ZN
Download Ideal Coordinates CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
CA
Query on CA
Download Ideal Coordinates CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.73 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.161 
  • R-Value Observed: 0.162 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.07α = 108.02
b = 72.17β = 104.99
c = 77.66γ = 92.49
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-01-18
    Type: Initial release