金属硫蛋白(MT)是一类广泛存在于生物体内的金属结合蛋白,富含半胱氨酸的小分子蛋白,能螯合多种金属离子,因其功能独特,近年来对MT各方面的研究日益受到重视。该文简述了家蝇MT的结构特点、理化性质和分布情况,以及参与体内解毒、清除自由基和微量元素代谢功能的研究现状及进展。 Metallothionein (MT) is a kind of metal-binding protein widely existed in the organism. It is a cysteine-rich small molecule protein that can chelate many kinds of metal ions. Due to its unique function, metallothionein Research is paid more and more attention. This paper describes the structural characteristics, physical and chemical properties and distribution of housefly MT, as well as the status quo and progress in the study on the detoxification, scavenging free radicals and trace element metabolism in vivo.