V2EX o-glycan

O-Glycan

释义 Definition

O-糖链 / O-聚糖:一种通过氧原子(通常是丝氨酸 Ser 或苏氨酸 Thr 的羟基)与蛋白质相连的糖链结构,属于糖基化(glycosylation)的一类,常见于黏蛋白(mucin)等糖蛋白上,影响蛋白的稳定性、定位、细胞识别与免疫相关过程。(也可广义指任何以 O-糖苷键连接的聚糖结构。)

发音 Pronunciation (IPA)

/o lakn/

例句 Examples

O-glycans are common on mucins.
O-糖链在黏蛋白上很常见。

Changes in O-glycan patterns can alter cellcell recognition and contribute to inflammation or cancer progression.
O-糖链模式的改变会影响细胞间识别,并可能促进炎症或癌症进展。

词源 Etymology

O-glycan由两部分组成:O- 表示通过氧(oxygen)原子形成连接(对应蛋白质侧链上的羟基氧),glycan 来自 **glyco-**(“糖”)+ -an(用于名词化),在生物化学中指“聚糖/糖链”。该术语用于区分 O-linked glycosylation(O-连接糖基化)N-linked glycosylation(N-连接糖基化)

相关词 Related Words

文学与著名作品用例 Literary & Notable Works

  • Essentials of Glycobiology(经典糖生物学教材;讨论 O-glycan 的结构类型、合成途径与生物学功能)
  • 期刊 Glycobiology(多篇研究论文以 “O-glycan(s)” 描述 O-糖链的分析方法与疾病关联)
  • The Sugar Code(聚焦糖链信息与生物识别的科普/学术写作中会涉及 O-糖链在细胞通讯中的作用)
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