1) Ion channel toxin 
Theraphosa leblondi toxin (TLTx) is a toxin occurring in three different forms (subtypes) that are purified and sequenced from the venom of the giant tarantula Theraphosa leblondi. This toxin selectively inhibits Kv4.2 voltage-gated potassium channels by acting as a gating modifier. ==Sources== The toxin is a component of the venom of the Goliath ...