对于体外转录的mRNAs,具有定义的poly (A) 尾长度和可视化序列PABP结合的协议
Carmen Grandi1, Martin Emmaneel1, Frank H T Nelissen1
1Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands; Oncode Institute, Nijmegen, the Netherlands.
STAR protocols
|September 1, 2024
概括
本研究详细介绍了一种方法,用于创建特定的mRNA多项A) 尾和可视化蛋白质结合. 这种技术有助于通过量化蛋白与mRNA的相互作用来理解基因调节.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 基因规则 基因规则
背景情况:
- 量化蛋白与mRNA的相互作用,特别是多个A尾,对于理解基因调节至关重要.
- 生物化学分析为这种量化提供了有效的方法.
- 细胞质多A结合蛋白 (PABPCs) 在mRNA处理和翻译中发挥着关键作用.
研究的目的:
- 提出一种用于合成具有精确,长度定义的多种类型A尾的mRNAs的协议.
- 描述一种体外方法,用于观察PABPCs与这些多A尾部的连续结合.
- 为研究mRNA-蛋白相互作用提供可复制的方法.
主要方法:
- 使用基于聚合酶连锁反应 (PCR) 的方法来合成具有特定多A尾长的mRNA.
- 使用体外 (无细胞) 系统可视化PABPCs的逐步结合.
- 在整个协议中整合严格的质量控制措施.
主要成果:
- 成功合成了具有受控多元 (A) 尾巴长度的mRNA.
- 在无细胞系统中可视化连续的PABPC与多A尾结合.
- 建立一个可靠的协议来研究mRNA-蛋白质动态.
结论:
- 提出的协议能够准确合成多基尼化mRNA和可视化PABPC结合.
- 这种方法促进了蛋白质-mRNA相互作用的定量分析,这对于基因调节研究至关重要.
- 描述的技术为分子生物学和生物化学研究人员提供了有价值的工具.
相关概念视频
01:35Pre-mRNA Processing: Modification of pre-mRNA Ends
9.2K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
9.2K
02:01pre-mRNA Processing
52.8K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
52.8K