1) Ion channel toxin 
α-Cobratoxin is a substance of the venom of certain Naja cobras. It is a nicotinic acetylcholine receptor (nAChR) antagonist which causes paralysis by preventing the binding of acetylcholine to the nAChR. ==Sources== α-Cobratoxin is a neurotoxin from the venom of certain Naja genus, including the Thailand cobra, the Indo-Chinese spitting cobra (...