V2EX tryptophan

Tryptophan

释义 Definition

色氨酸:一种必需氨基酸(人体不能自行合成,需从食物获取),用于合成蛋白质,并可作为血清素(serotonin)褪黑素(melatonin)等物质的前体,因而与情绪、睡眠等生理功能相关。(此外在生物化学中也常指其残基 Trp。)

发音 Pronunciation

/trptfn/

例句 Examples

Tryptophan is found in foods like turkey, eggs, and dairy.
色氨酸存在于火鸡、鸡蛋和乳制品等食物中。

Because tryptophan is a precursor to serotonin, some people associate it with mood and sleep, though nutrition is more complex than a single nutrient.
由于色氨酸是血清素的前体,有些人把它与情绪和睡眠联系起来,不过营养作用通常比“单一营养素决定一切”更复杂。

词源 Etymology

tryptophan 源自较早的化学命名:与“trypt-(可追溯到希腊语 tryptos,意为“被磨碎/被破碎的”,用于相关化学语境)”以及化学后缀“-phane/-phan”相关,整体作为一种氨基酸名称在20世纪初的生物化学研究中固定下来。它属于科学命名词,词形和含义都强烈依赖化学与生物学语境。

相关词 Related Words

文学作品中的用例 Literary Works

  • The Selfish Gene(Richard Dawkins)中在讨论基因、蛋白质与分子生物学时会涉及氨基酸等术语(包含色氨酸在内的相关词汇常出现在此类科普语境)。
  • Lehninger Principles of Biochemistry(Nelson & Cox,《莱宁格生物化学原理》)作为经典教材,在蛋白质与氨基酸章节中会出现 tryptophan
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