一种快速,简单,经济的方法来隔离核糖体和转化机器,用于结构和功能研究
Jessey Erath1, Danielle Kemper1, Elisha Mugo1
1Department of Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, MO, USA.
bioRxiv : the preprint server for biology
|November 1, 2024
概括
研究人员开发了RAPPL,这是一种快速而实惠的磁珠方法,用于隔离核糖体和相关因子. 这种技术简化了从各种生物样本进行功能和结构研究的净化.
科学领域:
- 分子生物学分子生物学
- 生物化学 生化学
- 结构生物学 结构生物学
背景情况:
- 核糖体是蛋白质合成和细胞质量控制的必不可少的RNA-蛋白质复合体.
- 目前的核糖体净化方法很费力,耗时,需要大量的生物材料.
- 现有的技术往往涉及超离心和专用设备,限制了可访问性.
研究的目的:
- 开发一种快速,经济有效和简单的方法来隔离核糖体和相关因子.
- 来自各种生物样本的核糖体的功能和结构研究.
- 为了克服传统的核糖体净化方案的局限性.
主要方法:
- 使用聚氨酸 (RAPPL) 的RNA亲和力净化,利用磁珠丰富.
- 质谱和西部斑分析以确认核糖体和相关因子丰富.
- 适用于各种样品类型,包括细胞溶解物,细胞,器官和整个生物体.
主要成果:
- RAPPL成功地从大肠杆菌和HEK-293细胞溶解物中分离了核糖体和相关因子.
- 该方法有效地从有限的物质量和各种生物来源中净化核糖体.
- 孤立的核糖体具有功能活性,适合用于药物查和抗生素耐药性研究.
- 拉普尔促进了Cryptococcus neoformans核糖体的冷EM结构确定.
结论:
- 拉普尔为核糖体净化提供了一个简单,快速和经济高效的替代方案.
- 该方法具有多功能性,适用于广泛的样本和下游分析.
- 纯化的核糖体适用于功能测定,药物查和结构研究.
- 拉普尔为多元化的学术,临床和工业核糖体研究提供了坚实的基础.
相关概念视频
02:24Ribosome Profiling
3.5K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.5K
02:53Ribosomal RNA Synthesis
13.1K
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
13.1K