5WTF image
Entry Detail
PDB ID:
5WTF
EMDB ID:
Keywords:
Title:
Cryo-EM structure for Hepatitis A virus empty particle
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2016-12-11
Release Date:
2017-01-25
Method Details:
Experimental Method:
Resolution:
3.90 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:VP1
Chain IDs:A
Chain Length:224
Number of Molecules:1
Biological Source:Hepatitis A virus
Polymer Type:polypeptide(L)
Description:VP0
Chain IDs:B
Chain Length:203
Number of Molecules:1
Biological Source:Hepatitis A virus
Polymer Type:polypeptide(L)
Description:VP3
Chain IDs:C
Chain Length:246
Number of Molecules:1
Biological Source:Hepatitis A virus
Ligand Molecules
Primary Citation
Potent neutralization of hepatitis A virus reveals a receptor mimic mechanism and the receptor recognition site
Proc. Natl. Acad. Sci. U.S.A. 114 770 775 (2017)
PMID: 28074040 DOI: 10.1073/pnas.1616502114

Abstact

Hepatitis A virus (HAV) infects ∼1.4 million people annually and, although there is a vaccine, there are no licensed therapeutic drugs. HAV is unusually stable (making disinfection problematic) and little is known of how it enters cells and releases its RNA. Here we report a potent HAV-specific monoclonal antibody, R10, which neutralizes HAV infection by blocking attachment to the host cell. High-resolution cryo-EM structures of HAV full and empty particles and of the complex of HAV with R10 Fab reveal the atomic details of antibody binding and point to a receptor recognition site at the pentamer interface. These results, together with our observation that the R10 Fab destabilizes the capsid, suggest the use of a receptor mimic mechanism to neutralize virus infection, providing new opportunities for therapeutic intervention.

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Primary Citation of related structures