V2EX sialic acid

Sialic Acid

释义 Definition

唾液酸(也称“涎酸”):一类带酸性的糖(常见为N-乙酰神经氨酸),多位于糖蛋白糖脂的末端,广泛存在于细胞表面与分泌物中,参与细胞识别、免疫调控、信号传递,也是多种病原体(如流感病毒)黏附与入侵的重要“靶点”。

发音 Pronunciation (IPA)

/salk sd/

例句 Examples

Sialic acid is found on the surface of many cells.
唾液酸存在于许多细胞的表面。

Changes in sialic acid patterns on glycoproteins can affect how viruses bind to host cells and how the immune system responds.
糖蛋白上唾液酸分布模式的变化会影响病毒与宿主细胞的结合方式,也会影响免疫系统的反应。

词源 Etymology

sialic 来自希腊语 sialon(“唾液”),因为这类物质早期与唾液/黏液相关的研究有关;加上形容词后缀 -ic 构成 “sialic(与唾液相关的)”。acid 指其化学性质呈酸性。在生物化学与糖生物学的发展中,该术语逐渐固定为指细胞表面末端的“唾液酸”家族。

相关词 Related Words

文献与著作 Literary / Notable Works

  • **Essentials of Glycobiology**(糖生物学经典教材)中多处讨论唾液酸在细胞表面识别与病原体相互作用中的作用。
  • **Molecular Biology of the Cell**(《细胞的分子生物学》)在细胞表面糖链与细胞识别相关章节中涉及唾液酸与糖被(glycocalyx)。
  • 许多关于流感病毒受体识别的经典研究论文会反复出现 sialic acid(例如讨论病毒血凝素与唾液酸连接方式的关系:α2-3 与 α2-6 等)。
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