V2EX scramblase

Scramblase

定义 Definition

scramblase磷脂“乱翻酶 / 随机转位酶”,指一类膜蛋白(或酶活性),能在细胞膜脂质双层的内外两层之间“非定向、双向”转运磷脂,从而打破膜脂的非对称分布;常与钙离子信号、血液凝固、细胞凋亡等过程相关。(该词在不同语境下也可泛指具有“scrambling(搅乱/打乱分布)”作用的脂质转运蛋白。)

发音 Pronunciation (IPA)

/skrm.bles/

词源 Etymology

来自 scramble(“搅乱、打乱”)+ -ase(表示“酶”的常见后缀)。字面意思就是“把(膜脂)分布打乱的酶/酶样蛋白”。

例句 Examples

Scramblase moves phospholipids between the two layers of the cell membrane.
Scramblase 在细胞膜的两层之间转运磷脂。

During apoptosis, scramblase activity can expose phosphatidylserine on the outer leaflet, signaling macrophages to clear the cell.
在细胞凋亡过程中,scramblase 的活性可使磷脂酰丝氨酸暴露到膜外层,从而向巨噬细胞发出清除该细胞的信号。

相关词 Related Words

文学与著作 Literary Works

  • Molecular Biology of the Cell(《细胞的分子生物学》):在细胞膜脂质非对称性与膜脂转运的章节中常讨论 scramblase / scrambling 相关概念。
  • Lehninger Principles of Biochemistry(《雷宁格生物化学原理》):在膜结构与膜脂动态、信号与凋亡相关内容中可能出现 scramblase 或相关机制描述。
  • 综述与经典论文题名中常见该词,例如关于 phospholipid scramblase、或 TMEM16/anoctamin 家族作为钙激活 scramblase 的研究文献。
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