4MJ1

unliganded BK Polyomavirus VP1 pentamer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.161 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

A Structure-Guided Mutation in the Major Capsid Protein Retargets BK Polyomavirus.

Neu, U.Allen, S.A.Blaum, B.S.Liu, Y.Frank, M.Palma, A.S.Stroh, L.J.Feizi, T.Peters, T.Atwood, W.J.Stehle, T.

(2013) Plos Pathog. 9: e1003688-e1003688

  • DOI: 10.1371/journal.ppat.1003688
  • Primary Citation of Related Structures:  4MJ0

  • PubMed Abstract: 
  • Viruses within a family often vary in their cellular tropism and pathogenicity. In many cases, these variations are due to viruses switching their specificity from one cell surface receptor to another. The structural requirements that underlie such r ...

    Viruses within a family often vary in their cellular tropism and pathogenicity. In many cases, these variations are due to viruses switching their specificity from one cell surface receptor to another. The structural requirements that underlie such receptor switching are not well understood especially for carbohydrate-binding viruses, as methods capable of structure-specificity studies are only relatively recently being developed for carbohydrates. We have characterized the receptor specificity, structure and infectivity of the human polyomavirus BKPyV, the causative agent of polyomavirus-associated nephropathy, and uncover a molecular switch for binding different carbohydrate receptors. We show that the b-series gangliosides GD3, GD2, GD1b and GT1b all can serve as receptors for BKPyV. The crystal structure of the BKPyV capsid protein VP1 in complex with GD3 reveals contacts with two sialic acid moieties in the receptor, providing a basis for the observed specificity. Comparison with the structure of simian virus 40 (SV40) VP1 bound to ganglioside GM1 identifies the amino acid at position 68 as a determinant of specificity. Mutation of this residue from lysine in BKPyV to serine in SV40 switches the receptor specificity of BKPyV from GD3 to GM1 both in vitro and in cell culture. Our findings highlight the plasticity of viral receptor binding sites and form a template to retarget viruses to different receptors and cell types.


    Organizational Affiliation

    Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VP1 capsid protein
A, B, C, D, E
275BK polyomavirusN/A
Find proteins for P03088 (BK polyomavirus)
Go to UniProtKB:  P03088
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, B, C, D, E
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B, C, D, E
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.161 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 144.900α = 90.00
b = 152.290β = 90.00
c = 62.720γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
RemDAqdata collection
PHASERphasing
REFMACrefinement
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release