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Title: Dimerization of Hepatitis E Virus Capsid Protein E2s Domain Is Essential for Virus–Host Interaction

Journal Article · · PLoS Pathogens
 [1];  [2];  [3];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [1]
  1. Xiamen University (China)
  2. Xiamen University (China); National University of Singapore (Singapore)
  3. Brookhaven National Laboratory (BNL), Upton, NY (United States)

Hepatitis E virus (HEV), a non-enveloped, positive-stranded RNA virus, is transmitted in a faecal-oral manner, and causes acute liver diseases in humans. The HEV capsid is made up of capsomeres consisting of homodimers of a single structural capsid protein forming the virus shell. These dimers are believed to protrude from the viral surface and to interact with host cells to initiate infection. To date, no structural information is available for any of the HEV proteins. Here, we report for the first time the crystal structure of the HEV capsid protein domain E2s, a protruding domain, together with functional studies to illustrate that this domain forms a tight homodimer and that this dimerization is essential for HEV–host interactions. In addition, we also show that the neutralizing antibody recognition site of HEV is located on the E2s domain. Our study will aid in the development of vaccines and, subsequently, specific inhibitors for HEV.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); Ministry of Education; National Natural Science Foundation; Key Program in Infectious Diseases; People's Republic of China; Academic Research Fund; National University of Singapore
Grant/Contract Number:
SC0012704; B06016; 30500092; 30600106; 30870514; 2006AA020905; 2006AA02A209; 2008ZX10004-015; R154000254112
OSTI ID:
1627893
Journal Information:
PLoS Pathogens, Vol. 5, Issue 8; ISSN 1553-7374
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English

References (35)

Automated protein model building combined with iterative structure refinement
  • Perrakis, Anastassis; Morris, Richard; Lamzin, Victor S.
  • Nature Structural Biology, Vol. 6, Issue 5, p. 458-463 https://doi.org/10.1038/8263
journal May 1999
The Birnavirus Crystal Structure Reveals Structural Relationships among Icosahedral Viruses journal March 2005
Viral Hepatitis during Pregnancy journal May 1972
Crystallography & NMR System: A New Software Suite for Macromolecular Structure Determination journal September 1998
Raster3D Version 2.0. A program for photorealistic molecular graphics journal November 1994
Viral Hepatitis During Pregnancy journal April 1965
PROCHECK: a program to check the stereochemical quality of protein structures journal April 1993
Hepatitis E: An emerging awareness of an old disease journal March 2008
X-ray Crystallographic Structure of the Norwalk Virus Capsid journal October 1999
Conformational exchange in the potassium channel blocker ShK journal December 2019
A bacterially expressed particulate hepatitis E vaccine: antigenicity, immunogenicity and protectivity on primates journal April 2005
Analysis of hepatitis E virus neutralization sites using monoclonal antibodies directed against a virus capsid protein journal April 2005
Putative receptor-binding sites of hepatitis E virus journal January 2008
Improved methods for building protein models in electron density maps and the location of errors in these models journal March 1991
Size-Distribution Analysis of Macromolecules by Sedimentation Velocity Ultracentrifugation and Lamm Equation Modeling journal March 2000
Icosahedral RNA Virus Structure journal June 1989
Mutations within the P2 Domain of Norovirus Capsid Affect Binding to Human Histo-Blood Group Antigens: Evidence for a Binding Pocket journal December 2003
Touring protein fold space with Dali/FSSP journal January 1998
Inference of Macromolecular Assemblies from Crystalline State journal September 2007
The design and implementation of SnB version 2.0 journal February 1999
Analysis of data from the analytical ultracentrifuge by nonlinear least-squares techniques journal December 1981
Mutations within the P2 Domain of Norovirus Capsid Affect Binding to Human Histo-Blood Group Antigens: Evidence for a Binding Pocket journal March 2004
Viral Hepatitis During Pregnancy journal January 1973
X-ray structure of a native calicivirus: Structural insights into antigenic diversity and host specificity journal May 2006
Virus Taxonomy – 1999: The Universal System of Virus Taxonomy, updated to include the new proposals ratified by the International Committee on Taxonomy of Viruses during 1998 journal February 1999
Conformational antigenic determinants generated by interactions between a bacterially expressed recombinant peptide of the hepatitis E virus structural protein journal January 2001
Evolutionary Trace Residues in Noroviruses: Importance in Receptor Binding, Antigenicity, Virion Assembly, and Strain Diversity journal January 2005
Recombinant Hepatitis E Capsid Protein Self-Assembles into a Dual-Domain T = 1 Particle Presenting Native Virus Epitopes journal December 1999
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997
SOLVE and RESOLVE: automated structure solution, density modification and model building journal November 2003
A factor preventing the major head protein of bacteriophage T4 from random aggregation journal January 1970
Viral hepatitis during pregnancy journal February 2001
Hepatitis E: an overview journal May 2002
Mutational Analysis of Essential Interactions Involved in the Assembly of Hepatitis E Virus Capsid journal February 2005
The P Domain of Norovirus Capsid Protein Forms Dimer and Binds to Histo-Blood Group Antigen Receptors journal June 2004

Cited By (28)

Characterization of Three Novel Linear Neutralizing B-Cell Epitopes in the Capsid Protein of Swine Hepatitis E Virus journal July 2018
Lessons learned from successful human vaccines: Delineating key epitopes by dissecting the capsid proteins journal March 2015
A Comprehensive Study of Neutralizing Antigenic Sites on the Hepatitis E Virus (HEV) Capsid by Constructing, Clustering, and Characterizing a Tool Box journal August 2015
Functional epitopes on hepatitis E virions and recombinant capsids are highly conformation-dependent journal January 2020
Generation in yeast and antigenic characterization of hepatitis E virus capsid protein virus-like particles journal November 2017
Effects of mRNA secondary structure on the expression of HEV ORF2 proteins in Escherichia coli journal November 2017
Structural basis for the neutralization of hepatitis E virus by a cross-genotype antibody journal March 2015
Hepatitis E vaccine development: A 14 year odyssey journal June 2012
Immunization against Hepatitis E journal March 2018
Origin, antigenicity, and function of a secreted form of ORF2 in hepatitis E virus infection journal April 2018
Profile of Acute Infectious Markers in Sporadic Hepatitis E journal October 2010
Design and development of a chimeric vaccine candidate against zoonotic hepatitis E and foot-and-mouth disease journal July 2020
Hepatitis E Virus Assembly and Release journal June 2019
The atomic structures of shrimp nodaviruses reveal new dimeric spike structures and particle polymorphism journal February 2019
Structural basis for the neutralization and genotype specificity of hepatitis E virus journal June 2011
Viral neutralization by antibody-imposed physical disruption journal December 2019
Molecular biology and replication of hepatitis E virus journal July 2012
Prophylactic Hepatitis E Vaccines: Antigenic Analysis and Serological Evaluation journal January 2020
Antigenic determinants of hepatitis E virus and vaccine-induced immunogenicity and efficacy journal November 2012
Molecular virology of hepatitis E virus journal October 2011
Author Correction: Dimerization: a structural feature for the protection of hepatitis E virus capsid protein against trypsinization journal April 2018
A high-throughput neutralizing assay for antibodies and sera against hepatitis E virus journal April 2016
Enhanced humoral response in pregnant mice immunized with liposome encapsulated recombinant neutralizing epitope protein of Hepatitis- E virus journal May 2015
Peptides Interfering 3A Protein Dimerization Decrease FMDV Multiplication journal October 2015
C-Terminal Amino Acids 471-507 of Avian Hepatitis E Virus Capsid Protein Are Crucial for Binding to Avian and Human Cells journal April 2016
Transmission, diagnosis, and management of hepatitis E: an update journal June 2014
Hepatitis E Virus Entry journal September 2019
Hepatitis E virus as an emerging zoonotic pathogen journal January 2016

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