V2EX rac1

RAC1

定义 Definition

RAC1 是一种小型 GTP 酶(属于 Rho 家族),在细胞内像“开关”一样在 GTP(开启)/GDP(关闭) 状态间切换,参与调控细胞骨架重排、细胞迁移、细胞黏附、吞噬作用以及多种信号通路;在癌症转移、免疫反应与神经发育等研究中常被提及。

发音 Pronunciation

/rk wn/

例句 Examples

Rac1 helps cells move.
Rac1 帮助细胞移动。

When Rac1 is overactivated, it can drive actin remodeling and increase cancer cell invasion through changes in cell shape and adhesion.
当 Rac1 过度激活时,它可能通过改变细胞形态与黏附、推动肌动蛋白重塑,从而增强癌细胞侵袭能力。

词源 Etymology

Rac1 的名称来自生物化学命名:Rac 常被解释为 Ras-related C3 botulinum toxin substrate(与 Ras 相关、可作为 C3 肉毒毒素底物的一类蛋白),1 表示该家族成员中的一种亚型/基因编号。它在研究中常与 RhoA、Cdc42 等同家族蛋白一起出现,用于描述细胞骨架与迁移的调控网络。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Molecular Biology of the Cell(Alberts 等):在细胞骨架与 Rho 家族小 GTP 酶章节中讨论 Rac1 的作用。
  • The Cell: A Molecular Approach(Cooper & Hausman):在细胞运动与信号传导相关内容中提及 Rac1 通路。
  • 期刊 CellNatureScience 的细胞迁移/癌症生物学研究论文中,Rac1 作为关键调控因子经常出现。
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