相关实验视频
Updated: Jul 15, 2026
08:40
Genome-wide Screen for miRNA Targets Using the MISSION Target ID Library
Published on: April 6, 2012
预测哺乳动物微RNA的目标
Benjamin P Lewis1, I-hung Shih, Matthew W Jones-Rhoades
1Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
Cell
|December 31, 2003
概括
研究人员确定了400多个点信使RNA (mRNA) 的脊椎动物微RNA (miRNA). 这项研究预测了哺乳动物和其他脊椎动物中miRNAs的新型基因调节作用.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 生物信息学是一种生物信息学.
背景情况:
- 微RNAs (miRNAs) 是各种生物体中已知的基因调节者.
- 脊椎动物miRNAs所准的特定信使RNAs (mRNAs) 仍然在很大程度上未被确定.
研究的目的:
- 为了预测和验证保护的脊椎动物微RNAs的监管目标基因.
- 了解脊椎动物中miRNA调节基因的功能作用.
主要方法:
- 基于5'区域的保守配对对的miRNA-mRNA相互作用的计算预测.
- 使用混合miRNA对照进行统计验证.
- 使用HeLa细胞报告系统进行实验验证.
主要成果:
- 超过400个调节性标基因被预测为保存的脊椎动物miRNAs.
- 绝大多数预测得到了严格的统计测试的支持.
- 实验验证确认了15个预测目标中的11个.
- 预测的目标参与了转录调节和各种其他细胞功能.
结论:
- 这项研究提供了在脊椎动物中预测的miRNA点的大量清单.
- 这些发现揭示了miRNA介导的基因调节的广泛功能影响.
- 预测的目标为未来研究miRNA在健康和疾病中的功能提供了基础.
更多相关视频
相关概念视频
01:22MicroRNAs
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...
01:22MicroRNAs
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...
01:22MicroRNAs
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...