Batrachotoxins (BTX) are extremely potent cardiotoxic and neurotoxic steroidal alkaloids found in certain species of frogs (poison dart frog), melyrid beetles, and birds (Pitohui, Ifrita kowaldi, Colluricincla megarhyncha). ==History== It was named by scientists John Daly and Bernhard Witkop, who separated the potent toxic alkaloids fraction and d...
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<protein> Neurotoxin from the Columbian poison frog Phyllobates. A steroidal alkaloid that affects sodium channels. Batrachotoxin R is more effective than related Batrachotoxin A. ... (18 Nov 1997) ...
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Neurotoxin from the Columbian poison frog Phyllobates . A steroidal alkaloid that affects sodium channels; batrachotoxin R is more effective than related batrachotoxin A.
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Type: Term Pronunciation: ba-tra-kō-tok′sin Definitions: 1. A neurotoxin from the Colombian arrow poison frogs (Phyllobates spp.). It is nontoxic when ingested. If it is injected or if ulcers are present, it will cause an irreversible increase in permeability of sodium ions in nerve membrane, producing paralysis.
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