V2EX depalmitoylation

Depalmitoylation

Definition / 定义

去棕榈酰化:指把蛋白质等分子上通过硫酯键等方式连接的棕榈酸(palmitate)基团移除的过程,通常由特定酶(如去棕榈酰化酶/硫酯酶)催化,从而影响蛋白质的膜定位、稳定性与信号传导。(该词也常见于细胞生物学与生物化学语境;相关概念还有“棕榈酰化”。)

Examples / 例句

Depalmitoylation can quickly change where a protein sits in the cell.
去棕榈酰化可以快速改变蛋白质在细胞中的位置。

In neurons, cycles of palmitoylation and depalmitoylation help regulate synaptic signaling and plasticity.
在神经元中,棕榈酰化与去棕榈酰化的循环有助于调控突触信号传导与可塑性。

Pronunciation / 发音(IPA)

/dipl.m.tle.n/

Etymology / 词源

由前缀 **de-**(表示“去除、逆转”)+ palmitoyl(“棕榈酰基”,源自 palmitic acid 棕榈酸)+ 名词后缀 -ation(表示“过程、作用”)构成,字面意思即“去除棕榈酰基的过程”。

Related Words / 相关词

Literary Works / 作品举例

  • Molecular Biology of the Cell(Alberts 等)在蛋白质脂质修饰与膜定位相关章节中常讨论棕榈酰化/去棕榈酰化作为可逆调控机制的一部分。
  • Cell Signaling(相关教材/综述类著作常用名)在受体与信号蛋白的膜锚定调控语境中常出现该术语。
  • 期刊论文(如 Nature, Science, Cell 等)关于神经元突触蛋白、G 蛋白相关信号或特定硫酯酶(如 APT/ABHD 家族)的研究中,常直接使用 depalmitoylation 描述该反应过程。
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