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Taipoxin is a potent myo- and neurotoxin that was isolated from the venom of the coastal taipan Oxyuranus scutellatus or also known as the common taipan. [1] Taipoxin like many other pre-synaptic neurotoxins are phospholipase A 2 (PLA 2) toxins, which inhibit/complete block the release of the motor transmitter acetylcholine and lead to death by paralysis of the respiratory muscles (). [2]
BAT is the only FDA-approved product available for treating botulism in adults, and for botulism in infants caused by botulinum toxins other than types A and B. BAT has been used to treat a case of type F infant botulism and, on a case-by-case basis, may be used for future cases of non-type A and non-type B infant botulism.
The toxin is usually an AB toxin, a cytotoxic protein derived from a bacterial or plant protein, from which the natural binding domain has been removed so that the Fv directs the toxin to the antigen on the target cell. [1] Sometimes recombinant fusion proteins containing a toxin and a growth factor are also referred to as recombinant ...
The toxin was also referenced in "synthetic form" in season 1, episode 2, of the series "FBI". The toxin is used as a weapon in both the second season of Archer , in Covert Affairs and in the Inside No. 9 episode " The Riddle of the Sphinx ".
[1] A toxin-antitoxin system consists of a "toxin" and a corresponding "antitoxin", usually encoded by closely linked genes. The toxin is usually a protein while the antitoxin can be a protein or an RNA. Toxin-antitoxin systems are widely distributed in prokaryotes, and organisms often have them in multiple copies.
Antitoxins to diphtheria and tetanus toxins were produced by Emil Adolf von Behring and his colleagues from 1890 onwards. The use of diphtheria antitoxin for the treatment of diphtheria was regarded by The Lancet as the "most important advance of the [19th] Century in the medical treatment of acute infectious disease". [1] [2]
However, this toxin is, at least, 100-fold more potent against Nav1.7 than other human Nav channel subtypes. At a concentration of 0.3 nM, this toxin blocks Nav1.7 by 50%. [4] Besides sodium channels, ProTx-II also inhibits some subtypes of voltage-gated calcium channels, Cav1.2 and Cav3.2.
Botulinum toxin, or botulinum neurotoxin (commonly called botox), is a neurotoxic protein produced by the bacterium Clostridium botulinum and related species. [24] It prevents the release of the neurotransmitter acetylcholine from axon endings at the neuromuscular junction, thus causing flaccid paralysis. [25]