ArticleMethods in molecular biology (Clifton, N.J.)2022
Characterization of Influenza Virus Binding to Receptors on Isolated Cell Membranes.
Article in Methods in molecular biology (Clifton, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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2 authors at 2 institutions in 2 countries.
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Abstract
An interplay between receptor-binding properties of influenza viruses (IVs) and spectrum of sialic acid-containing receptors on target cells in birds and mammals determine viral host range, tissue tropism, and pathogenicity. Here, we describe method that allows to characterize binding of IVs to biologically relevant cellular receptors using a conventional solid-phase enzyme-linked assay. In this method, we isolate plasma membranes from respiratory and intestinal epithelial cells of animal origin (Subheading 3.2). We adsorb the membranes in the wells of 96-well ELISA plates, incubate the membrane-coated wells with serially diluted IVs, and determine amounts of IVs attached to the membranes using viral ability to bind peroxidase-labeled sialoglycoprotein fetuin. Based on the concentration dependence of IV binding to the membrane, we estimate binding avidity and number of binding sites. We describe two variants of the assay in Subheadings 3.6 and 3.7 and provide examples.
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