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Related Concept Videos

Transcriptional Regulation: Riboswitches01:23

Transcriptional Regulation: Riboswitches

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Riboswitches are RNA elements that regulate gene expression by altering their secondary structures in response to specific effector molecules. These elements, located in the leader regions of certain mRNAs, act as transcriptional regulators by toggling between alternative conformations to control downstream gene expression. Riboswitch-mediated regulation is a precise mechanism for modulating biosynthetic pathways, as exemplified by the riboflavin biosynthesis pathway in Bacillus...
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Translational Regulation01:29

Translational Regulation

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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,...
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Riboswitches01:56

Riboswitches

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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.
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Types of RNA01:23

Types of RNA

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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...
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Types of RNA01:20

Types of RNA

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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.
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Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

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Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
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Chromatin Isolation by RNA Purification ChIRP
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Redox Regulation and Noncoding RNAs.

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Noncoding RNAs (ncRNAs) regulate gene expression and interact with redox control. Understanding this interplay offers new therapeutic strategies, particularly targeting microRNAs (miRNAs) for disease treatment.

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Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Redox Biology

Background:

  • Noncoding RNAs (ncRNAs) represent a significant portion of the transcriptome, playing crucial roles in gene expression control.
  • Recent discoveries highlight ncRNAs' complex involvement in epigenetic mechanisms and translation regulation.
  • The intricate relationship between ncRNAs and cellular redox balance is an emerging area of research.

Purpose of the Study:

  • To review the complex interplay between noncoding RNAs (ncRNAs) and redox regulation.
  • To explore how redox changes affect ncRNA expression and vice versa.
  • To discuss the therapeutic potential of targeting ncRNAs in redox-related diseases.

Main Methods:

  • Literature review focusing on ncRNA and redox biology.
  • Analysis of studies investigating ncRNA-mediated gene expression control.
  • Examination of ncRNA's role in cellular redox homeostasis.

Main Results:

  • ncRNAs are increasingly recognized for their role in fine-tuning gene expression.
  • A complex bidirectional relationship exists between ncRNAs and redox regulatory systems.
  • ncRNAs, especially microRNAs (miRNAs), can modulate large gene networks involved in redox processes.

Conclusions:

  • Understanding the ncRNA-redox axis is key to developing novel therapeutic interventions.
  • Targeting ncRNAs, such as miRNAs, presents a promising strategy for treating diseases associated with altered redox states.
  • ncRNA-based therapies hold significant potential for future clinical applications in redox-related conditions.