Metallothioneins(MTs) are a group of intracellular proteins of low molecular weight and rich cysteine,encoded by a family of genes containing at least 10 functional isoforms in human.

• 金属硫蛋白(MT)是一类低相对分子质量、富含半胱氨酸的细胞内蛋白,在人类至少有10种MT功能性基因亚型存在。