The Most Ancient Predatory Class Of Arthropods Essay

1992 WordsApr 27, 20168 Pages
Scorpions are the most ancient predatory class of arthropods that lived on earth for millions of years. There have been more than 1,500 species of scorpions identified worldwide and there are only 25 of them venomous to humans and other organism. Scorpions’ venom has played a critical role in their survival due to its exceptional mixture of component which consists of enzymes, short peptides, simple amino acids and other chemical secreted from the venom glands. These short peptides (30-80 amino acid) are often identified and known as toxins that the scorpion use by means of self-protection against other organisms. In recent decades, both medical and therapeutic fields turn their attention to study scorpions as significant laboratory animals due to their physiological characteristics. The different toxins produced by the venomous scorpions have opened new horizon towards using them to either design specific drugs and antibodies or find alternative tools in identifying a certain disease such as cancer. Although these toxins have different modes of actions and targets, the majority of them affect the nervous system and are classified as neurotoxins because they either alter specific ion channel binding and movement across cell membrane or affect neurotransmitter transmissions in the synaptic cleft. In order to explore closely the different features of these neurotoxins, a toxin called chlorotoxin will be discussed. Chlorotoxin or (CTX) is a type of toxin that is isolated from

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