相关实验视频
Updated: May 7, 2026

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Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
Published on: April 6, 2012
蛋白质组学加入了对微RNA点的搜索
Helge Grosshans1, Witold Filipowicz
1Friedrich Miescher Institute for Biomedical Research, CH-4002 Basel, Switzerland. helge.grosshans@fmi.ch
Cell
|August 30, 2008
概括
两项研究分析了对微RNA (miRNA) 的反应中的蛋白质组变化. 这有助于识别miRNA目标并了解基因沉默机制.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物化学 生物化学
背景情况:
- 微RNA (miRNA) 是小型非编码RNA,可以调节基因表达.
- 转录后基因沉默是由miRNAs控制的关键调节机制.
- 了解miRNA功能对于破译细胞过程至关重要.
研究的目的:
- 分析由单个微RNA (miRNA) 诱导的蛋白质组变化.
- 使用蛋白质组方法识别新的miRNA目标.
- 量化转化抑制在miRNA介导基因沉默中的作用.
主要方法:
- 针对特定的miRNA扰动而发生的细胞变化的蛋白质组分析.
- 量化质谱测量用于检测蛋白质丰度的变化.
- 生物信息分析以将miRNA活动与蛋白质组概况相关联.
主要成果:
- 确定了直接归因于单个miRNA活动的特定蛋白质变化.
- 证明了全蛋白质组分析对于miRNA点发现的实用性.
- 量化了转化抑制对miRNA介导的基因沉默的贡献.
结论:
- 基于蛋白质组的分析为研究miRNA功能提供了一种强大的方法.
- 这种方法有助于识别miRNA目标和监管机制.
- 了解miRNA介导的翻译抑制是基因沉默的关键.
相关概念视频
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
Ribosome Profiling
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 helps...
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 helps...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
Proteomics
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...

