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NTX accounts for only about 1% of the scorpion venom. [7] NTX is one of the best-studied toxic peptides from scorpion venoms. [6] It was the second purified toxin obtained from the genus Centruroides after neurotoxin II [8] and the first short peptide from scorpion venom to be reported in the literature. [9]
In another context, the scorpion portrays human sexuality. [10] Scorpions are used in folk medicine in South Asia, especially in antidotes for scorpion stings. [10] One of the earliest occurrences of the scorpion in culture is its inclusion, as Scorpio, in the 12 signs of the Zodiac by Babylonian astronomers during the Chaldean period. [12]
Charybdotoxin (ChTX) is a 37 amino acid neurotoxin from the venom of the scorpion Leiurus quinquestriatus hebraeus (deathstalker) that blocks calcium-activated potassium channels. [2] This blockade causes hyperexcitability of the nervous system. It is a close homologue of agitoxin and both toxins come from Leiurus quinquestriatus hebraeus.
The venom from Leiurus abdullahbayrami can be very toxic. The venom of this species is one of the most potent venoms of the Turkish scorpions, and it provokes severe symptoms in the victims. Proteins make up half of the dry weight of the crude venom. The venom in this species stimulates voltage-gated sodium and potassium channels. [11]
The deathstalker is one of the most dangerous species of scorpions. [10] [11] Its venom is a powerful mixture of neurotoxins, with a low lethal dose. [12]While a sting from this scorpion is extraordinarily painful, it normally would not kill a healthy adult human.
Heteroscorpine (HS-1) is a component of the venom of the Thai giant scorpion Heterometrus laoticus. This species is a member of the scorpion family commonly known as giant forest scorpions, indigenous to large parts of South and South-East Asia.
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Scorpion venom is a mixture of neurotoxins; most of these are peptides, chains of amino acids. [114] Many of them interfere with membrane channels that transport sodium, potassium, calcium, or chloride ions. These channels are essential for nerve conduction, muscle contraction and many other biological processes. Some of these molecules may be ...