V2EX heme

Heme

Definition 定义

heme(血红素/血基质):一种含铁的卟啉环结构,是许多重要蛋白的“辅基”(帮助蛋白发挥功能的部分),最常见于血红蛋白肌红蛋白中,参与携带与利用氧气;也存在于某些酶(如细胞色素)中,参与氧化还原反应。

Pronunciation 发音

/him/

Examples 例句

Heme helps hemoglobin carry oxygen in the blood.
血红素帮助血红蛋白在血液中携带氧气。

Because heme contains iron, problems in heme production can affect red blood cells and cause anemia.
由于血红素含铁,血红素生成出现问题会影响红细胞,并可能导致贫血。

Etymology 词源

heme与表示“血”的词根有关,来源可追溯到希腊语 haima(血) 所形成的科学词汇传统;现代用法中,heme作为生物化学术语,指血红蛋白等分子里“含铁卟啉”的核心结构,因此常与 **hem-/haem-**(血)家族词汇一起出现。

Related Words 相关词

Literary Works 文学与作品

  • Lehninger Principles of Biochemistry》(《雷宁格生物化学原理》):在血红蛋白、细胞色素与辅基章节中频繁出现 heme
  • Biochemistry》(Jeremy M. Berg, John L. Tymoczko, Lubert Stryer;常称《Stryer 生物化学》):讲解血红蛋白结构与氧结合机制时使用 heme
  • Campbell Biology》(《坎贝尔生物学》):在蛋白质功能、呼吸与血液相关内容中介绍 heme(血红素基团)。
  • Molecular Biology of the Cell》(《细胞的分子生物学》):在电子传递、细胞色素与辅基相关段落中出现 heme
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