Background
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SNX-482 has been isolated from the venom of the Spider Hysterocrates gigas (African tarantula). This toxin modulates the R-type current associated with the class alpha1E calcium channel (Cav2.3 from the CACNA1E gene). SNX-482 antagonizes channel activation by inducing a depolarizing shift in the activation potential, thus preventing the channel from undergoing normal membrane depolarization. SNX-482acts rapidly and maintains its effect.
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