新型抗体在原生病原体,细胞粘液模具和植物中检测到核细胞质O-糖
Megna Tiwari1,2, Elisabet Gas-Pascual1,3,2, Manish Goyal4
1Center for Tropical and Emerging Global Diseases, University of Georgia, Athens GA.
bioRxiv : the preprint server for biology
|October 28, 2024
概括
新的抗体检测到O-fucosylation (O-Fuc),一种蛋白质修饰在原生体和植物. 这一发现使得研究保存的O-fucome成为可能,这对细胞适应和增殖至关重要.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 葡萄糖生物学 葡萄糖生物学
背景情况:
- 细胞适应包括翻译后的蛋白质修饰,例如核细胞质蛋白的O-fucosylation (O-Fuc).
- 在原生体和植物中发生O-Fuc,由O-fucosyltransferase (OFT) 介导,对*毒素*和*Dictyostelium*的繁殖至关重要.
- 使用*Aleuria aurantia*乳素的现有方法对O-Fuc检测具有有限的特异性.
研究的目的:
- 开发用于选择性检测和丰富O-fucosylated蛋白质 (fucose-O-Ser或fucose-O-Thr) 的新型抗体.
- 研究O-化在各种生物体中的存在和保存,包括原生体和哺乳动物细胞.
主要方法:
- 产生和 affinity 净化子抗菌对抗 O-fucosylated 蛋白质.
- 免疫检测和丰富的O-fucosylated蛋白质在*毒素*, *Dictyostelium*, *Arabidopsis*, 和哺乳动物细胞.
- 在发育过程中O-fucome保存和诱导的比较分析.
主要成果:
- 开发的抗体特别检测核细胞质和分泌O-Fuc在*毒素*,*Dictyostelium*和*Arabidopsis*.
- 在 *毒素 *, *阿坎他梅巴 * 和 *狄氏 * 中的O-Fuc模式与动物细胞,包括核孔中的O-GlcNAcylation模式相似.
- 在 *Dictyostelium* 和 *Toxoplasma* 之间,O-fucome 部分保存,并在 *Dictyostelium* 中的饥饿诱导发育过程中得到上调.
结论:
- 新型抗体为研究不同物种O-基化提供了一种特殊的工具.
- O-Fuc 是非相关的原生体中保存的修饰,在细胞过程中发挥作用.
- 这些抗菌剂将促进未来研究各种生物体中O-fucome的功能和调节.
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