1) Ion channel toxin 
Huwentoxins (HWTX) are a group of neurotoxic peptides found in the venom of the Chinese bird spider Haplopelma huwena. While structural similarity can be found among several of these toxins, HWTX as a group possess high functional diversity. ==Sources== Huwentoxins are neurotoxic peptides produced by the Chinese bird spider, Selenocosmia huwena. R...