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相关概念视频

Riboswitches01:56

Riboswitches

9.5K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
9.5K
RNA-seq03:21

RNA-seq

11.7K
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
11.7K
Types of RNA01:23

Types of RNA

72.5K
Overview
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in the regulation of gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA...
72.5K
Types of RNA01:20

Types of RNA

9.0K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
9.0K
Translational Regulation01:29

Translational Regulation

514
Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
514
Global Regulatory Systems01:28

Global Regulatory Systems

578
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
578

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相关实验视频

Updated: Jan 11, 2026

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
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MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

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紧型RNA传感器用于多个输入的日益复杂的功能.

Christian A Choe1, Johan O L Andreasson2,3,4, Feriel Melaine3

  • 1Department of Bioengineering, Stanford University School of Medicine, Stanford, CA, USA.

Nature chemistry
|November 12, 2025
PubMed
概括
此摘要是机器生成的。

研究人员开发了能够进行复杂分子计算的新型RNA传感器. 这些紧的单分子传感器可以检测特定的分子输入,推进分子设计和诊断.

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A Simplified System for Evaluating Cell Mechanosensing and Durotaxis In Vitro
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Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA
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Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA

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相关实验视频

Last Updated: Jan 11, 2026

MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria
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MS2-Affinity Purification Coupled with RNA Sequencing in Gram-Positive Bacteria

Published on: February 23, 2021

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A Simplified System for Evaluating Cell Mechanosensing and Durotaxis In Vitro
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Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA
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科学领域:

  • 分子生物学分子生物学
  • 合成生物学 合成生物学
  • 计算生物学 计算生物学

背景情况:

  • 设计单个分子用于复杂的计算仍然是分子设计的一个重大挑战.
  • 现有的方法往往缺乏复杂的分子传感所需的精度和多功能性.

研究的目的:

  • 为了证明复杂的分子功能的各种RNA设计的高通量,代的实验测试.
  • 开发用于各种应用的紧型单分子传感器,包括疾病诊断.

主要方法:

  • 众包来自在线游戏Eterna的各种RNA设计,用于高通量实验测试.
  • 代设计和测试以创建具有越来越复杂功能的RNA传感器.
  • 开发了用于设计紧的RNA和DNA传感器的核学算法.

主要成果:

  • 成功设计了具有高激活率的单输入RNA传感器.
  • 创建了逻辑门 (XOR,XNOR) 和响应两个输入的比率的传感器.
  • 开发了85核酸传感器,以基于基因段比率来诊断活跃结核病.

结论:

  • 众包设计的高通量实验测试使复杂的分子计算成为可能.
  • 紧的单分子传感器可以设计用于复杂的功能,扩大诊断领域的应用范围.