The proteins of barnacle glue , they discovered , are dominated by amino acids called proline and isoleucine .

他们发现，藤壶的蛋白质主要由被称为脯氨酸和异亮氨酸的两种氨基酸组成。

Isoleucine a nonpolar amino acid , synthesized from threonine .

异亮氨酸：是一种非极性氨基酸，由苏氨酸合成。

Isoleucine : one of the essential amino acids , present in most common proteins . It was first isolated in 1904 from fibrin , a protein involved in coagulation . It is used in medicine and biochemical research and as a nutritional supplement .

异白氨酸：基本氨基酸的一种，存在于大多数常见的蛋白质里.1904年首先从与凝血有关的纤维蛋白中分离出来。用于医学和生化研究，也可作为营养增补剂。