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We have utilized glycan microarray technology to determine the receptor binding properties of early isolates from the recent 2009 H1N1 human pandemic (pdmH1N1), and compared them to North American swine influenza isolates from the same year, as well as past seasonal H1N1 human isolates. We showed that the pdmH1N1 strains, as well as the swine influenza isolates examined, bound almost exclusively to...
The use of viral vectors as vaccine candidates has shown promise against a number of pathogens. However, preexisting immunity to these vectors is a concern that must be addressed when deciding which viruses are suitable for use. A number of properties, including the existence of antigenically distinct subtypes, make influenza viruses attractive candidates for use as viral vectors. Here, we evaluate...
A panel of eight single amino acid deletion mutants was generated within the first 24 residues of the fusion peptide domain of the of the hemagglutinin (HA) of A/Aichi/2/68 influenza A virus (H3N2 subtype). The mutant HAs were analyzed for folding, cell surface transport, cleavage activation, capacity to undergo acid-induced conformational changes, and membrane fusion activity. We found that the mutant...
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