Comparative Analysis Between a Low Pathogenic and a High Pathogenic Influenza H5 Hemagglutinin in Cell Entry
Document Type
Article
Publication Date
2009
Abstract
Avian influenza viruses continue to threaten globally with pandemic potential. The first step in a potential pandemic is the ability of the virus to enter human cells which is mediated by the viral surface glycoprotein hemagglutinin (HA). Viral entry of influenza is dependent upon the processing of the HA0 polypeptide precursor protein into HA1 and HA2 which is mediated by host cellular proteases. The sequence of the cleavage site which is recognized by host proteases has been linked with pathogenesis of various influenza viruses. Here we examined the effects of cleavage site sequences between a highly pathogenic H5N1 strain and a low pathogenic H5N2 strain to determine their effects on viral entry. From this analysis we determined that at the level of viral entry, the only observed difference between the low and high pathogenic strains is their ability to be cleaved by host cellular proteases.
Version
The work available here is the publisher version.
DOI
https://doi.org/10.1186/1743-422X-6-76
Publication Title
Virology Journal
Volume Number
6
Issue Number
1
First Page
76
Recommended Citation
Rumschlag-Booms, Emily; Guo, Ying; Wang, Jizhen; Caffrey, Michael; and Rong, Lijun, "Comparative Analysis Between a Low Pathogenic and a High Pathogenic Influenza H5 Hemagglutinin in Cell Entry" (2009). Biology Faculty Publications. 10.
https://neiudc.neiu.edu/bio-pub/10