Restrictions to the Adaptation of Influenza A Virus H5 Hemagglutinin to the Human Host

Ruth Harvey, Andrew C.R. Martin, Maria Zambon, Wendy S. Barclay*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Citations (Scopus)

Abstract

The binding specificities of a panel of avian influenza virus subtype H5 hemagglutinin (HA) proteins bearing mutations at key residues in the receptor binding site were investigated. The results demonstrate that two simultaneous mutations in the receptor binding site resulted in H5 HA binding in a pattern similar to that shown by human viruses. Coexpression of the ion channel protein, M2, from most avian and human strains tested protected H5 HA conformation during trafficking, indicating that no genetic barrier to the reassortment of the H5 surface antigen gene with internal genes of human viruses existed at this level.

Original languageEnglish
Pages (from-to)502-507
Number of pages6
JournalJournal of Virology
Volume78
Issue number1
DOIs
Publication statusPublished - Jan 2004

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