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|Section2= |Section3= }} 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 (Naja siamensis) and the Chinese cobra (Naja atra). The cobras that produce the toxin live in tropical and subtropical regions of The Americas, Africa, Asia, and Australia. The venom, produced by these snakes, is a mixture of proteins, carbohydrates, and other substances. The venom is only used when the snake needs it for survival, because it costs a lot of effort to produce. If poisoning a subject is not necessary, it can bite without excreting the venom. When the snake does use it, it mostly tries to immobilize or kill its prey.〔http://www.ncbi.nlm.nih.gov/pubmed/?term=cobratoxin〕 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Cobratoxin」の詳細全文を読む スポンサード リンク
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