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镉对生产环境和生活环境的污染以及对人类健康的危害已经引起人们的重视。机体长期小剂量接触镉后,在体内可以合成一种低分子量结合镉的蛋白质——金属硫蛋白(Metallothionein),这种蛋白质现在已经从马、兔、大鼠、小鼠等多种动物种属以及人类的肝脏或肾脏中分离出来,并已广泛地研究了它的特性和生物学作用。金属硫蛋白由金属和硫蛋白结合而成,由61个氨基酸组成,其中含有20个半胱氨酸残基,缺乏芳香
Cadmium on the production environment and living environment pollution and the harm to human health has drawn people’s attention. After long-term low-dose exposure to cadmium, the body can synthesize a low-molecular-weight cadmium-binding protein, Metallothionein, which has now been produced from various animal species such as horses, rabbits, rats and mice And human liver or kidney, and its properties and biological effects have been extensively studied. Metallothionein is composed of a combination of metal and sulfur protein, composed of 61 amino acids, which contains 20 cysteine residues, lack of aromatic