4WZK

Crystal structure of P domain from norovirus strain Saga4 in complex with HBGA type H2 (triglycan)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.141 

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This is version 2.0 of the entry. See complete history


Literature

Human noroviruses' fondness for histo-blood group antigens.

Singh, B.K.Leuthold, M.M.Hansman, G.S.

(2015) J Virol 89: 2024-2040

  • DOI: 10.1128/JVI.02968-14
  • Primary Citation of Related Structures:  
    4X0C, 4X05, 4X06, 4X07, 4WZT, 4WZK, 4WZL, 4WZE, 4OOS, 4OPO

  • PubMed Abstract: 
  • Human noroviruses are the dominant cause of outbreaks of gastroenteritis around the world. Human noroviruses interact with the polymorphic human histo-blood group antigens (HBGAs), and this interaction is thought to be important for infection. Indeed, synthetic HBGAs or HBGA-expressing enteric bacteria were shown to enhance norovirus infection in B cells ...

    Human noroviruses are the dominant cause of outbreaks of gastroenteritis around the world. Human noroviruses interact with the polymorphic human histo-blood group antigens (HBGAs), and this interaction is thought to be important for infection. Indeed, synthetic HBGAs or HBGA-expressing enteric bacteria were shown to enhance norovirus infection in B cells. A number of studies have found a possible relationship between HBGA type and norovirus susceptibility. The genogroup II, genotype 4 (GII.4) noroviruses are the dominant cluster, evolve every other year, and are thought to modify their binding interactions with different HBGA types. Here we show high-resolution X-ray crystal structures of the capsid protruding (P) domains from epidemic GII.4 variants from 2004, 2006, and 2012, cocrystallized with a panel of HBGA types (H type 2, Lewis Y, Lewis B, Lewis A, Lewis X, A type, and B type). Many of the HBGA binding interactions were found to be complex, involving capsid loop movements, alternative HBGA conformations, and HBGA rotations. We showed that a loop (residues 391 to 395) was elegantly repositioned to allow for Lewis Y binding. This loop was also slightly shifted to provide direct hydrogen- and water-mediated bonds with Lewis B. We considered that the flexible loop modulated Lewis HBGA binding. The GII.4 noroviruses have dominated outbreaks over the past decade, which may be explained by their exquisite HBGA binding mechanisms, their fondness for Lewis HBGAs, and their temporal amino acid modifications.


    Organizational Affiliation

    Schaller Research Group at the University of Heidelberg and the DKFZ, Heidelberg, Germany Department of Infectious Diseases, Virology, University of Heidelberg, Heidelberg, Germany g.hansman@dkfz.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VP1A, B309Norovirus Hu/GII-4/Saga4/2006/JPMutation(s): 0 
UniProt
Find proteins for B5BTR7 (Norovirus Hu/GII-4/Saga4/2006/JP)
Explore B5BTR7 
Go to UniProtKB:  B5BTR7
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranoseC, D3N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42956UG
GlyCosmos:  G42956UG
GlyGen:  G42956UG
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ACT
Query on ACT

Download Ideal Coordinates CCD File 
E [auth A], F [auth B]ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_900125
Query on PRD_900125
C, DH type 2 antigen, alpha anomerOligosaccharide /  Antigen Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.49 Å
  • R-Value Free: 0.173 
  • R-Value Work: 0.139 
  • R-Value Observed: 0.141 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.99α = 90
b = 58.81β = 108.11
c = 98.02γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
XSCALEdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-17
    Type: Initial release
  • Version 1.1: 2015-02-04
    Changes: Database references
  • Version 1.2: 2015-03-04
    Changes: Derived calculations
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary