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Toxins isolated from scorpion, snake, and spider venoms are valuable tools to probe the physiologic function and structure of ion channels. In this study, we have isolated three new toxins (heteropodatoxins) from the venom of a spider, Heteropoda venatoria. These toxins are structurally similar peptides of 29 to 32 amino acids and share sequence homology(More)
Recently, we reported a SOMAmer-based, highly multiplexed assay for the purpose of biomarker identification. To enable seamless transition from highly multiplexed biomarker discovery assays to a format suitable and convenient for diagnostic and life-science applications, we developed a streamlined, plate-based version of the assay. The plate-based version(More)
The venom of the North American funnel-web spider Agelenopsis aperta contains a variety of arylamine toxins (the alpha-agatoxins) that paralyze insects by blocking glutamatergic neuromuscular transmission. We have tested six synthetic alpha-agatoxins for their ability to antagonize glutamate receptor function in mammalian brain. These compounds produce, at(More)
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