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Crotamine
Crotamine is a toxin present in the venom of the South American rattlesnake (''Crotalus durissus terrificus''). It is a 42-residue long protein containing 11 basic residues (9 lysines, 2 arginines) and 6 cysteines. It has also been isolated from the venom of North American prairie rattlesnake, ''Crotalus viridis viridis''. It was first isolated and purified by Brazilian scientist José Moura Gonçalves, and later intensively studied by his group of collaborators at the Medical School of Ribeirão Preto of the University of São Paulo. ==Biological function== Crotamine has a number of biological actions: it acts on cell membrane's sodium channels, is slightly analgesic and is myotoxic, i.e., it penetrates the cells of muscles and promotes necrosis. Crotamine is homologous with other venom myotoxins and is similar to α-,β-defensins.
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「Crotamine」の詳細全文を読む
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