Metallothioneine (MT) has characteristics of low molecular weight, high cysteine content, which can bind large number of metal ions.Because of its unique function, studies of MT become very important.

• 摘要金属硫蛋白(MT)是一类低分子量、高巯基含量，能大量结合重金属离子的蛋白质，因其功能独特，近年来对MT各方面的研究日益受到重视。