A peptide is a short chain of the amino-acid molecules that are the ultimate components of proteins.
一个缩氨酸是一个短链的氨基酸分子，而氨基酸是最终形成蛋白质的分子。
Unfortunately, these black smokers are very acid, which prevents amino-acid stabilization, and thus the formation of organic molecules.
但是因为上述黑烟囱都呈酸性，因此不利于氨基酸的稳定与有机分子的形成。
He assigned (指定) a unique note to each amino acid (氨基酸) is the protein.
他为蛋白质中的每一个氨基酸分配了一个独特的注释。
This is significant, because the amino acid sequence of an enzyme is determined by genes.
这很重要，因为酶的氨基酸序列是由基因决定的。
Analysis by gel electrophoresis revealed slight differences in amino acid sequence of the enzymes of two of the four pairs.
经凝胶电泳分析，发现四对实验对象中有两对的酶的氨基酸序列略有差异。
Agronomists studying the herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert.
研究这种药草的农学家发现，它会产生大量的组氨酸，这种氨基酸在试管溶液中会使这些金属具有化学惰性。
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。
Carbs are also full of tryptophan, the amino acid precursor to the feel-good chemical serotonin produced in the brain.
碳水化合物富含色氨酸，它是大脑中生成的一种能给人带来良好感受的氨基酸—血清素的前身。
Each codon either codes for an amino acid or tells the cell to stop making a protein chain.
每一个密码子或者编码一种氨基酸，或者告诉这些细胞停止生产这个蛋白质链。
The vitamins were chosen because they control the amounts of an amino acid called homocysteine in the blood.
选用维生素是因为他们控制了血液中一种叫高半胱氨酸的氨基酸的含量。
There are likely to be many others, since many allergens seem to share similarities in their amino acid sequences that might confuse the immune system.
有可能还有其它很多种，因为许多过敏原似乎分享着相似的氨基酸序列，可能会使免疫系统产生混乱。
The ribosome finds the appropriate amino acid for each "letter" and assembles them head-to-tail in sequence; other "letters" indicate when to start and when to stop.
核糖体找到每个“字母”的适当的氨基酸，并将它们首尾相连，组成一个序列；其他“字母”表示何时开始以及何时停止。
In all existing life forms, the four "letters" of the genetic code, called nucleotides, are read in triplets, so that every three nucleotides encode a single amino acid.
在所有现有的生命形式中的四个“字母”的遗传密码，即核苷酸，是以三个为单位读取的，每三个核苷酸编码成为一个单独的氨基酸。
Yogurt also supplies the brain with tyrosine, an amino acid that boosts blood levels of the neurotransmitters dopamine and norepinephrine, resulting in a mood and mental boost.
酸奶还能向大脑供给酪氨酸，这种氨基酸能提升血液中的神经介质多巴胺和去甲肾上腺素水平，从而提升人的情绪和心情。
Damaged tissues and acne scars are diffused into their own amino acid components and released back into the body as the basis of new cellular growth.
受损组织及痤疮疤痕在自身的氨基酸成分中扩散开来，且被作为新细胞生长的基础释放回身体。
It does contain an amino acid called tryptophan that is involved in sleep and mood control.
火鸡肉中的确含有一种氨基酸叫色氨酸，对睡眠和情绪会产生影响。
A single mutation, a different sequence in the DNA, causes the ribosome to use a different amino acid when it builds the lysozyme molecule.
单一突变，dna序列发生变化，会造成核糖体在构建溶解酵素分子时使用不同的氨基酸。
There, Stone tells us, cooking the soup releases an amino acid that resembles the drug acetylcysteine, which is used to treat bronchitis and other respiratory ailments.
煮汤的时候会释放出来一种氨基酸，这和药物乙酰半胱氨酸很相似，这种药物被用来治疗支气管炎和呼吸系统的疾病。
Some foods are considered relaxing foods if they contain an amino acid called tryptophan .
某些食品如果含有一种叫色氨酸的氨基酸，就会被认为是放松食品。
Tryptophan is an essential amino acid that ACTS as a precursor of serotonin - the feel-good chemical - and can be converted to melatonin, eliciting relaxation and pleasure.
色氨酸，一种非常重要的氨基酸，也是血清素(让人感觉良好的化学物质)的前导，会转换成褪黑色素，刺激加强松弛感和愉悦。
Protein also contains leucine, an amino acid that prevents muscle loss when you're dieting.
蛋白质中含有亮氨酸，这是一种氨基酸能在你节食的时候阻止肌肉消失。
Take the gene mutation that causes phenylketonuria, or PKU. People with the disease can't break down the amino acid phenylalanine, a problem that can lead to severe cognitive damage.
提取能导致苯丙酮尿症（PKU）的基因突变.患这种病的人不能分解氨基酸苯丙氨酸，这会导致严重的认知损坏。
The body can not make tryptophan and a lack of this amino acid can result in sleep disorders which lead to higher levels of anxiety and stress.
人体不能合成色氨酸，而这种氨基酸的缺乏会导致睡眠失调，引发更严重的紧张和焦虑。
Foods that contain a substance called tryptophan, which is converted to an amino acid called L-tryptophan, promote sleep.
食物中含有一种称为色氨酸的物质，它可以转化为一种能促进睡眠的氨基酸—l -色氨酸。
B vitamins can help stifle homocysteine, an amino acid that damages blood vessels.
维生素b可以帮助阻止高半胱氨酸，它是损害血管的一种氨基酸。
B vitamins can help stifle homocysteine, an amino acid that damages blood vessels.
维生素b可以帮助阻止高半胱氨酸，它是损害血管的一种氨基酸。
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