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- W2077114019 abstract "Influenza virus hemagglutinin (HA) mediates both receptor (glycan) binding and membrane fusion for cell entry and has been the basis for typing influenza A viruses. In this study we have selected RNA aptamers (D-12 and D-26) that specifically target the HA protein of the recent pandemic influenza virus pdmH1N1 (A/California/07/2009). Among the selected aptamers the D-26 aptamer showed higher affinity for the HA of pdmH1N1 and was able to distinguish HA derived from other sub-types of influenza A viruses. The affinity of the D-26 aptamer was further improved upon incorporation of 2'-fluoropyrimidines to a level of 67 fM. Furthermore, the high affinity D-12 and D-26 aptamers were tested for their ability to interfere with HA-glycan interactions using a chicken red blood cell (RBC) agglutination assay. At a concentration of 200 nM the D-26 aptamer completely abolished the agglutination of RBCs, whereas D-12 only did so at 400 nM. These studies suggest that the selected aptamer D-26 not only has a higher affinity and specificity for the HA of pdmH1N1 but also has a better ability to efficiently interfere with HA-glycan interactions compared with the D-12 aptamer. The D-26 aptamer warrants further study regarding its application in developing topical virucidal products against the pdmH1N1 virus and also in surveillance of the pdmH1N1 influenza virus." @default.
- W2077114019 created "2016-06-24" @default.
- W2077114019 creator A5049449439 @default.
- W2077114019 creator A5086194183 @default.
- W2077114019 date "2013-11-01" @default.
- W2077114019 modified "2023-09-23" @default.
- W2077114019 title "Aptamers that bind to the hemagglutinin of the recent pandemic influenza virus H1N1 and efficiently inhibit agglutination" @default.
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- W2077114019 doi "https://doi.org/10.1016/j.actbio.2013.06.016" @default.
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