Amino acids occur naturally in the body.

氨基酸在体内自然生成

Apamin is an 18 amino acid peptide neurotoxin.

蜂毒眀肽是一种由18种氨基酸构成的肽神经毒素。

Performing de novo sequencing without knowing amino acid masses is very novel.

在不知道氨基酸团块的情况下进行从头测序是很新奇的。

Nonnatural amino acid 3 (4 thiazolyl) D, L alanine hydrochloride and its four intermediates were synthesized.

合成了非天然氨基酸3（4噻唑基）D，L丙氨酸盐酸盐及其四个中间体。

Yet, in cases of amino acid deficiency, it can be prevented.

如果是因为缺乏氨基酸，还能预防。

Carbohydrates carry a key amino acid, tryptophan, to our brains.

碳水化合物承载着一个关键的氨基酸，色氨酸，到我们的大脑。