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Related Concept Videos

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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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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Ribosomal RNA Synthesis02:53

Ribosomal RNA Synthesis

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Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
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Inhibitors of Bacterial Protein Synthesis01:25

Inhibitors of Bacterial Protein Synthesis

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Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...
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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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Related Experiment Video

Updated: May 1, 2026

A Non-Coding Small RNA MicC Contributes to Virulence in Outer Membrane Proteins in Salmonella Enteritidis
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Small non-coding RNAs in streptomycetes.

Nona Heueis1, Michael-Paul Vockenhuber1, Beatrix Suess1

  • 1Department of Biology; Technical University Darmstadt; Darmstadt, Germany.

RNA Biology
|March 27, 2014
PubMed
Summary
This summary is machine-generated.

Small non-coding RNAs are crucial regulators in Streptomycetes, soil bacteria known for complex life cycles and metabolite production. This review highlights their importance in controlling gene expression for these versatile organisms.

Keywords:
S. coelicolorStreptomycesantisense RNAasRNAsRNAsmall non-coding RNA

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Genetics

Background:

  • Streptomycetes are ubiquitous soil bacteria with complex life cycles.
  • They exhibit extensive morphological changes and produce numerous secondary metabolites.
  • Efficient gene expression regulation is essential due to their complex biology.

Purpose of the Study:

  • To review the current understanding of small non-coding RNA (sRNA) roles in Streptomycetes.
  • To highlight the significance of sRNAs in regulating gene expression within these bacteria.

Main Methods:

  • Literature review of existing research on Streptomycetes and gene regulation.
  • Analysis of studies focusing on small non-coding RNA functions.

Main Results:

  • Streptomycetes possess a large and diverse set of regulatory mechanisms.
  • Small non-coding RNAs play a significant role in controlling gene expression in Streptomycetes.
  • These sRNAs are integral to managing the complex life cycle and metabolic activities.

Conclusions:

  • Small non-coding RNAs are vital components of the regulatory machinery in Streptomycetes.
  • Further research into sRNAs will enhance our understanding of Streptomyces biology and metabolite production.