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相关概念视频

Leaky Scanning02:28

Leaky Scanning

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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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相关实验视频

Updated: Jun 9, 2025

De novo Identification of Actively Translated Open Reading Frames with Ribosome Profiling Data
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工程作物性能与上游开放的阅读框架.

Rui Mou1, Ruixia Niu1, Ruoying Yang1

  • 1State Key Laboratory of Hybrid Rice, Institute for Advanced Studies (IAS), Wuhan University, Wuhan, Hubei 430072, China.

Trends in plant science
|October 29, 2024
PubMed
概括
此摘要是机器生成的。

转化控制通过调节基因表达来优化作物产量. 上游开放阅读框架 (uORF) 是关键的RNA调控元素 (RRE),通过精确的基因表达调制来提高农业生产力.

关键词:
基因编辑 基因编辑基因工程是基因工程,是基因工程.合成生物学 合成生物学转基因是指转基因的人类.翻译控制的翻译控制上游开放的阅读框架.

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科学领域:

  • 植物分子生物学 植物分子生物学
  • 农业科学 农业科学
  • 基因表达调节 基因表达调节

背景情况:

  • 植物在多个层面上调节基因表达,包括翻译,以控制生长和环境反应.
  • 翻译重编程是各种生理状态中基因表达控制的关键机制.
  • RNA调节元件 (RRE) 可以被操纵以提高作物生产率.

研究的目的:

  • 阐明上游开放阅读框架 (uORF) 作为一类RRE优化作物表现的潜力.
  • 突出转化控制在提高农业产量的作用.
  • 为了证明如何操纵uORF可以提高作物生产率.

主要方法:

  • 专注于上游开放阅读框架 (uORFs) 作为特定的RNA调节元件 (RRE).
  • 通过转基因来研究异质基因表达的调制.
  • 通过基因编辑技术探索内源基因表达.

主要成果:

  • 上游开放式读取框架 (uORFs) 在优化作物性能方面显示出显著的潜力.
  • 转移性控制机制,特别是通过uORF,有效提高农业产量.
  • 像uORFs这样的RRE操纵可以提高作物生产率.

结论:

  • 上游开放阅读框架 (uORF) 是提高作物生产率的强大工具.
  • 转化控制为提高农业产量提供了一个可行的策略.
  • 针对uORF等RRE对于推进作物科学和确保粮食安全至关重要.