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- W1974536306 abstract "Aptamers are short single-stranded DNA or RNA sequences that are selected in vitro based on their high affinity to a target molecule. Here we demonstrate that an RNA aptamer selected against eukaryotic initiation factor 4A (eIF4A) serves as an efficient biosensor. The aptamer, when immobilized to resin, purifies eIF4A from crude cell extracts by affinity pull-down, and 32P-labeled aptamer can detect some 300 ng of eIF4A by dot-blot analysis. Moreover, by use of an aptamer-immobilized sensor chip, we developed a surface plasmon resonance assay to detect eIF4A at the nanogram level within whole cell lysates after optimizing sample preparation, thereby showing a real-time sensor for eIF4A in cell extract solution." @default.
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- W1974536306 date "2009-05-01" @default.
- W1974536306 modified "2023-09-27" @default.
- W1974536306 title "An aptamer-based biosensor for mammalian initiation factor eukaryotic initiation factor 4A" @default.
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- W1974536306 doi "https://doi.org/10.1016/j.ab.2009.01.046" @default.
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