V2EX opsin

Opsin

释义 Definition

opsin:视蛋白;一类存在于视网膜感光细胞中的蛋白质,与视黄醛(retinal)结合形成感光色素(如视紫红质 rhodopsin),负责把光信号转化为神经信号。(在生物学语境中最常见)

发音 Pronunciation

/psn/

例句 Examples

Opsin helps the eye detect light.
视蛋白帮助眼睛感知光线。

Different opsins absorb different wavelengths, allowing animals to see color and adapt to dim environments.
不同的视蛋白吸收不同波长的光,使动物能够分辨颜色并适应昏暗环境。

词源 Etymology

opsin 来自希腊语词根 opsis(“视觉、看见”)的相关形式,加上生化名词常见后缀 -in(用于表示“某种物质/蛋白质”)。字面含义可理解为“与视觉有关的蛋白质”。

相关词 Related Words

文学/名著中的用例 Literary Works

  • Kandel et al., Principles of Neural Science(《神经科学原理》):在视觉传导与光感受机制章节中讨论视紫红质与相关视蛋白(opsins)。
  • Alberts et al., Molecular Biology of the Cell(《细胞的分子生物学》):在细胞信号转导与感官受体相关内容中提及 opsin 及其作为受体蛋白的作用。
  • Berg, Tymoczko & Stryer, Biochemistry(《生物化学》):在光受体蛋白与视紫红质体系中介绍 opsin 与 retinal 的结合及功能。
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