一个新的脱辅基脂蛋白E的多态性在人体内被发现了。它的两种表现型脱辅基脂蛋白E(Ⅳ+)和脱辅基脂蛋白E(Ⅳ-)可以用等电聚焦分析法区分开来。脱辅基脂蛋白E(Ⅳ+)的特征是它另外有一个等电点为2—6.1的阴极脱辅基脂蛋白E带。脱辅脂蛋白E—Ⅳ是以常染色体显性遗传方式而被遗传的。在德国群体标本(490人)中脱辅基脂蛋白E(Ⅳ+)表现型的出现频率是 A new apolipoprotein E polymorphism has been found in the human body. Its two phenotypes, apolipoprotein E (IV +) and apolipoprotein E (IV-), can be distinguished by isoelectric focusing analysis. Apolipoprotein E (IV +) is characterized by the addition of a cathodipropionin E band with an isoelectric point of 2-6.1. ApoD-E-IV is inherited by autosomal dominant inheritance. The frequency of apolipoprotein E (IV +) phenotypes in German population specimens (490) was