Glycine, alanine, valine, leucine are all nonpolar assets and this is how you drop them in an exam.

甘氨酸，丙氨酸，缬氨酸，亮氨酸全都是非极性的，这就是你如何征服考试的秘诀啦！

Almost always, the sickle cell mutation is a non-conservative missense mutation that results in the sixth amino acid of beta-globin being valine instead of glutamic acid.

镰状细胞突变几乎总是由于非保守区错义突变，导致β-珠蛋白的第6个氨基酸为缬氨酸，而非谷氨酸。

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.

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