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- W2074132511 abstract "The development of high-throughput screening (HTS) assays with increased sensitivity for the identification of potent and selective inhibitors of galectins has been hampered by the weak binding affinities between galectins and their carbohydrate ligands. To circumvent this obstacle, we have developed an AlphaScreen assay for a 384-well plate format in a competitive binding configuration for discovery of new inhibitors of galectin-3. His-tagged galectin-3 was bound to nickel chelate acceptor beads, whereas biotinylated asialofetuin (biotin-ASF), a galectin-3 nanomolar binding partner, was bound to streptavidin-coated donor beads. Inhibitors of the carbohydrate-galectin interaction lead to a reduction of the AlphaScreen signal by competing with the biotin-ASF. The obtained IC50 values for known carbohydrate ligands of galectin-3 are in good agreement with the Kd values reported and measured for galectin-3 by isothermal titration calorimetry (ITC). Thus, the developed AlphaScreen assay in a competitive binding configuration offers several advantages over the existing screening assays for inhibitors of glycan-lectin interactions. In addition, the assay format for the galectin-3/ASF pair could be easily applied in screening for glycan- and/or small molecule-based inhibitors of other members of the galectin family." @default.
- W2074132511 created "2016-06-24" @default.
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- W2074132511 date "2013-08-01" @default.
- W2074132511 modified "2023-09-26" @default.
- W2074132511 title "Development of an AlphaScreen assay for discovery of inhibitors of low-affinity glycan–lectin interactions" @default.
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- W2074132511 doi "https://doi.org/10.1016/j.ab.2013.04.028" @default.
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