Essential amino acids, or EAAs, are amino acids that our body needs but cannot produce on its own, and there are 9 of them: Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

本氨，简称 EAA，是我们身体需要但不能自己产生的氨，其中有 9 种：氨，异亮氨，亮氨，赖氨，蛋氨，苯丙氨，苏氨，色氨和缬氨。

Aldolase A is made of 350 amino acids, the building blocks of proteins, but the bit that does the work consists of only three of these: lysine, glutamic acid and tyrosine. The rest of the enzyme is packaging.

醛缩酶A由350种氨成，这些氨是蛋白质的成成分，但起作用的部分只有三个：赖氨、谷氨和酪氨。剩下的酶是包装的。