V2EX proteoform

Proteoform

释义 Definition

proteoform(蛋白质形式体/蛋白质型态):指同一基因产物在分子层面上的一种“具体形式”,其差异可能来自基因变异、可变剪接以及翻译后修饰(如磷酸化、糖基化等),因此即使被称为“同一种蛋白质”,也可能存在多个不同的 proteoform。

发音 Pronunciation (IPA)

/proti.ofrm/

例句 Examples

The lab identified three proteoforms of the same protein.
实验室鉴定出了同一种蛋白质的三种蛋白质形式体。

Because post-translational modifications can change activity and location, mapping proteoforms is essential for understanding how a cell responds to stress.
由于翻译后修饰会改变蛋白质的活性与定位,绘制蛋白质形式体图谱对于理解细胞如何应对压力至关重要。

词源 Etymology

该词是现代蛋白质组学中的术语,由 **proteo-**(与“蛋白质/蛋白质组”相关,源自 protein/proteome)+ -form(“形式”)构成,强调“蛋白质并非只有一个固定版本,而是以多种具体分子形式存在”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • “Proteoform: a single term describing protein complexity”(Smith & Kelleher,Nature Methods,2013)
  • “Top-down proteomics: where we are, where we are going?”(相关综述文献中常用该词,讨论以蛋白质形式体为单位的鉴定思路)
  • The Human Proteoform Project(社区倡议/计划类论文与报告中使用该术语,聚焦人类蛋白质形式体图谱的构建)
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