Restrictions to the adaptation of influenza A virus H5 hemagglutinin to the human hostHarvey, R., Martin, A. C. R., Zambon, M. and Barclay, W. S. (2004) Restrictions to the adaptation of influenza A virus H5 hemagglutinin to the human host. Journal of Virology, 78 (1). pp. 502-507. ISSN 0022-538X Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1128/jvi.78.1.502-507.2004 Abstract/SummaryThe binding specificities of a panel of avian influenza virus subtype H5 hemagglutinin (RA) 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 RA 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 RA 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.
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