V2EX ip3 receptor

IP3 Receptor

释义 Definition

IP3受体:一种位于细胞内膜系统(主要是内质网)上的配体门控钙通道。当信号分子 IP3(肌醇1,4,5-三磷酸)与其结合时,IP3受体开放,促使Ca从内质网释放到细胞质,从而参与调控分泌、肌肉收缩、基因表达、神经活动等多种细胞过程。(该术语在专业语境中也常写作 IP receptor / InsP receptor。)

发音 Pronunciation (IPA)

/a pi θri rsptr/

例句 Examples

IP3 receptor activation releases calcium from the endoplasmic reticulum.
IP3受体的激活会使钙离子从内质网释放出来。

After the hormone binds its membrane receptor, IP3 is produced and then opens the IP3 receptor, triggering a rapid calcium wave through the cell.
当激素与膜受体结合后,细胞会产生IP3,随后IP3打开IP3受体,引发钙信号在细胞内快速传播。

词源 Etymology

IP3inositol 1,4,5-trisphosphate(肌醇1,4,5-三磷酸)的缩写;receptor(受体)源自拉丁语 recipere(“接受、接收”)。合起来,“IP3 receptor”字面意思是“接收/结合IP3的受体”,在细胞生物学中特指能被IP3激活并放出Ca的通道蛋白。

相关词 Related Words

文献与作品 Literary Works

  • Streb, H. et al. (1983), Nature:经典论文,提出IP3可动员细胞内Ca释放(奠定IP3受体通路的重要基础)。
  • Berridge, M. J. & Irvine, R. F. (1984), Nature:著名综述,系统阐述IP3作为第二信使及其与Ca信号的关系。
  • Alberts et al., Molecular Biology of the Cell:细胞信号转导章节中常以IP3受体作为Ca释放通路的代表性例子。
  • Lehninger, Principles of Biochemistry:在膜脂信号与第二信使部分讨论IP3产生及其作用靶点(包括IP3受体)。
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