相关实验视频

Updated: May 5, 2026

Protein Purification Technique that Allows Detection of Sumoylation and Ubiquitination of Budding Yeast Kinetochore Proteins Ndc10 and Ndc80

Protein Purification Technique that Allows Detection of Sumoylation and Ubiquitination of Budding Yeast Kinetochore Proteins Ndc10 and Ndc80

Published on: May 3, 2015

在Giardia trofhozoites中识别和确认SUMOylation修饰的蛋白质

Hye Rim Yeo¹, Mee Young Shin¹, Juri Kim¹

¹Department of Tropical Medicine, Institute of Tropical Medicine, Yonsei University College of Medicine, Seoul 03722, Korea.

Parasites, hosts and diseases

|September 1, 2025

概括

小型泛素相关修饰剂 (SUMO) 在Giardia lamblia中至关重要. 研究人员发现了三种新的SUMO修饰蛋白,NEK,AHD和PDI2,这表明SUMOylation在这种原生病原体中调节了它们的活性.

科学领域:

细胞生物学
寄生虫学
生物化学

背景情况:

通过SUMOylation进行翻译后修饰是Giardia lamblia的一个重要细胞过程.
识别SUMO基质是了解寄生生物细胞调节的关键.

研究的目的:

在Giardia lamblia trofhozoites中识别新的SUMO基底蛋白.
调查SUMOylation在候选蛋白质活性调节中的作用.

主要方法:

使用SUMO相互作用基因树脂的亲和染色法用于丰富和识别SUMO基因蛋白质.
候选蛋白质,包括NEK,AHD,PDI2,酒精脱酶3和甲甲基转移酶,是根据缩选择的.
通过Western blot生成和分析了表达候选蛋白质的转基因Giardia和一个阳性对照.

主要成果:

检测到了SUMOylated arginine deiminase,证实了实验方法的有效性.
鉴定出从未发生线粒分裂的A相关激酶 (NEK),氨基胺二酶 (AHD) 和二硫化蛋白异构酶2 (PDI2) 的SUMOylated形式.
这些发现表明,NEK,AHD和PDI2是Giardia trofhozoites中SUMOylation的基质.

结论:

在Giardia lamblia中,NEK,AHD和PDI2是新的SUMOylation目标.
SUMOylation可能在Giardia trofhozoites中的NEK,AHD和PDI2的功能中起着调节作用.
这项研究促进了对寄生虫原生动物的翻译后修饰的理解.

关键词:

黄虫 SUMOylation 的使用情况翻译后的修改

更多相关视频

Use of Anti-phospho-girdin Antibodies to Visualize Intestinal Tuft Cells in Free-Floating Mouse Jejunum Cryosections

Use of Anti-phospho-girdin Antibodies to Visualize Intestinal Tuft Cells in Free-Floating Mouse Jejunum Cryosections

Published on: March 21, 2018

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins

Published on: April 27, 2019

相关概念视频

Oligosaccharide Assembly

Oligosaccharide Assembly

Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...

Protein Folding Quality Check in the RER

Protein Folding Quality Check in the RER

ER is the primary site for the maturation and folding of soluble and transmembrane secretory proteins. The calnexin cycle is a specific chaperone system that folds and assesses the confirmation of N-glycosylated proteins before they can exit the ER lumen. The primary players of this quality check pipeline are the lectins, ER-resident chaperones, and a glucosyl transferase enzyme. In case the calnexin system in the lumen fails to salvage a misfolded protein, it is transported to the cytoplasm...