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Title: Structural and Functional Analysis of Surface Proteins from an A(H3N8) Influenza Virus Isolated from New England Harbor Seals

Journal Article · · Journal of Virology
DOI:https://doi.org/10.1128/JVI.02723-14· OSTI ID:1245870
 [1];  [2];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Centers for Disease Control and Prevention, Atlanta, GA (United States)
  2. Centers for Disease Control and Prevention, Atlanta, GA (United States); Battelle Memorial Inst., Atlanta, GA (United States)

In late 2011, an A(H3N8) influenza virus infection resulted in the deaths of 162 New England harbor seals. Virus sequence analysis and virus receptor binding studies highlighted potential markers responsible for mammalian adaptation and a mixed receptor binding preference. Here, we present a detailed structural and biochemical analysis of the surface antigens of the virus. Results obtained with recombinant proteins for both the hemagglutinin and neuraminidase indicate a true avian receptor binding preference. Although the detection of this virus in new species highlights an increased potential for cross-species transmission, our results indicate that the A(H3N8) virus currently poses a low risk to humans. Cross-species transmission of zoonotic influenza viruses increases public health concerns. Here, we report a molecular and structural study of the major surface proteins from an A(H3N8) influenza virus isolated from New England harbor seals. Furthermore, the results improve our understanding of these viruses as they evolve and provide important information to aid ongoing risk assessment analyses as these zoonotic influenza viruses continue to circulate and adapt to new hosts.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Center for Disease Control and Prevention; USDOE Office of Science (SC), Biological and Environmental Research (BER); National Inst. of Health; National Inst. of General Medical Sciences
Grant/Contract Number:
AC02-06CH11357; P41GM103393; GM62116
OSTI ID:
1245870
Journal Information:
Journal of Virology, Vol. 89, Issue 5; ISSN 0022-538X
Publisher:
American Society for MicrobiologyCopyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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Cited By (5)

Making glycoproteins a little bit sweeter with PDB-REDO journal July 2018
New England harbor seal H3N8 influenza virus retains avian-like receptor specificity journal February 2016
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Influenza A (H10N7) Virus Causes Respiratory Tract Disease in Harbor Seals and Ferrets journal July 2016
Detection of H3N8 influenza A virus with multiple mammalian-adaptive mutations in a rescued Grey seal (Halichoerus grypus) pup posted_content October 2019