V2EX pyruvate kinase

Pyruvate Kinase

Definition / 释义

丙酮酸激酶:一种关键的代谢酶,催化糖酵解(glycolysis)最后一步反应把磷酸烯醇式丙酮酸(PEP)的磷酸基转移给 ADP,生成ATP丙酮酸(pyruvate)。在不同组织/生物中有不同同工酶;其活性与能量代谢、红细胞功能以及某些疾病相关。

Pronunciation / 发音

/paruvet kanes/

Examples / 例句

Pyruvate kinase is an enzyme in glycolysis.
丙酮酸激酶是糖酵解途径中的一种酶。

In red blood cells, reduced pyruvate kinase activity can lower ATP production and contribute to hemolytic anemia.
在红细胞中,丙酮酸激酶活性降低会减少 ATP 生成,并可能导致溶血性贫血。

Etymology / 词源

pyruvate 来自 *pyruvic (acid)(丙酮酸)相关命名,词根与“火/热”(pyr-*)有关,历史上与加热/蒸馏等化学过程的命名传统相关;kinase 源自希腊语 kinein(移动),在生物化学里指“转移磷酸基团、推动分子状态变化”的酶类。因此 pyruvate kinase 字面可理解为“与丙酮酸生成相关、进磷酸转移的酶”。

Related Words / 相关词

Literary Works / 文学作品

  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》)
  • Biochemistry(Berg, Tymoczko & Stryer,常译《生物化学》/《斯特赖尔生物化学》)
  • Molecular Biology of the Cell(《细胞的分子生物学》)
  • Harper’s Illustrated Biochemistry(《哈珀图解生物化学》)
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