摘要蛇毒是从毒蛇的毒腺中分泌出来的一种毒液,主要成份为蛋白质和多肽。其中的膜活性多肽（membrane active polypeptide）是一种碱性蛋白,其毒性通过破坏细胞膜而实现，又被称为膜毒素（membrane toxin，MT）。因膜毒素具有多种生物学活性，是一类对心脏具有毒性又有抗癌活性的组份，又被称作心脏毒素（cardiotoxin，CTX），
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