6OU9 image
Deposition Date 2019-05-04
Release Date 2019-06-26
Last Version Date 2024-03-20
Entry Detail
PDB ID:
6OU9
Title:
Asymmetric focused reconstruction of human norovirus GI.7 Houston strain VLP asymmetric unit in T=3 symmetry
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
3.20 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Major capsid protein
Chain IDs:A (auth: B), B (auth: A), C
Chain Length:539
Number of Molecules:3
Biological Source:Norovirus Hu/GI.7/TCH-060/USA/2003
Ligand Molecules
Primary Citation
High-resolution cryo-EM structures of outbreak strain human norovirus shells reveal size variations.
Proc.Natl.Acad.Sci.USA 116 12828 12832 (2019)
PMID: 31182604 DOI: 10.1073/pnas.1903562116

Abstact

Noroviruses are a leading cause of foodborne illnesses worldwide. Although GII.4 strains have been responsible for most norovirus outbreaks, the assembled virus shell structures have been available in detail for only a single strain (GI.1). We present high-resolution (2.6- to 4.1-Å) cryoelectron microscopy (cryo-EM) structures of GII.4, GII.2, GI.7, and GI.1 human norovirus outbreak strain virus-like particles (VLPs). Although norovirus VLPs have been thought to exist in a single-sized assembly, our structures reveal polymorphism between and within genogroups, with small, medium, and large particle sizes observed. Using asymmetric reconstruction, we were able to resolve a Zn2+ metal ion adjacent to the coreceptor binding site, which affected the structural stability of the shell. Our structures serve as valuable templates for facilitating vaccine formulations.

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Primary Citation of related structures