应用距离几何算法对金属硫蛋白的半胱氨酸富含区进行了结构预测，并结合同源模块法成功地完成了对猕猴桃金属硫蛋白三级结构的建模．结果表明，植物金属硫蛋白也像哺乳动物金属硫蛋白一样具有独立形成两个金属硫络合簇的结构基础，本方法可应用于其他同类蛋白的三级结构建模． The structure prediction of metallothionein-rich regions was carried out by using the distance geometry algorithm. The karyotypes of kiwifruit metallothionein were successfully constructed by homology-based method. The results showed that plant metallothioneins also have the same structural basis as the mammalian metallothionein to form two metal sulfur complex clusters independently. This method can be applied to the tertiary structure modeling of other similar proteins.