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Related Concept Videos

Types of RNA01:23

Types of RNA

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...
Translational Regulation01:29

Translational Regulation

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,...
Bacterial RNA Polymerase00:43

Bacterial RNA Polymerase

Unlike eukaryotes, bacteria use a single RNA Polymerase (RNAP) to transcribe all genes. The different subunits of bacterial RNAPhave distinct functions. The multisubunit structure of the bacterial RNAP helps the enzyme to maintain catalytic function, facilitate assembly, interact with DNA and RNA, and self-regulate its activity.
In most genes, the transcription site is a single base present upstream of the coding sequence. Though RNAP is a catalytically efficient enzyme, it does not recognize...
Translation in Prokaryotes01:29

Translation in Prokaryotes

Prokaryote translation is a complex, highly coordinated process that converts genetic information from mRNA into functional proteins. It involves three stages: initiation, elongation, and termination, each facilitated by specific molecular components.Initiation of TranslationThe process begins with the assembly of the ribosomal subunits and initiation factors on the mRNA. In bacteria, the 30S ribosomal subunit recognizes the Shine-Dalgarno sequence in the mRNA, a conserved region upstream of...
Coordination of Gene Expression Processes in Bacteria01:29

Coordination of Gene Expression Processes in Bacteria

The DNA replication, transcription, and translation processes are intricately coupled in bacteria, allowing efficient gene expression and rapid protein synthesis. While this physical and functional coordination is advantageous, it introduces challenges that bacteria overcome through specific regulatory mechanisms.Coupling of Replication, Transcription, and TranslationThe coupling of replication, transcription, and translation is a hallmark of bacterial gene expression. As the replisome unwinds...
Prokaryotic Gene Structure and Organization01:28

Prokaryotic Gene Structure and Organization

Prokaryotic genomes exhibit a streamlined organization of coding and non-coding regions essential for gene expression and protein synthesis. While coding regions contain the genetic instructions for proteins or functional RNAs, non-coding regions regulate the precise transcription and translation of these genes.Coding Regions: Proteins and RNAsThe primary coding regions, known as structural genes, include sequences transcribed into messenger RNA (mRNA) and ultimately translated into...

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Related Experiment Video

Updated: Jun 4, 2026

RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing
12:05

RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing

Published on: August 7, 2021

RNA localization in bacteria.

Kenneth C Keiler1

  • 1Department of Biochemistry and Molecular Biology, Penn State University, 401 Althouse Laboratory, University Park, PA 16802, USA.kkeiler@psu.edu

Current Opinion in Microbiology
|March 1, 2011
PubMed
Summary
This summary is machine-generated.

Bacteria precisely position RNAs within cells, a process involving RNA binding proteins and transcription sites. This spatial control helps regulate gene expression and bacterial physiology, potentially by controlling RNA degradation.

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A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues

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RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing
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RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing

Published on: August 7, 2021

Three-dimensional Imaging of Bacterial Cells for Accurate Cellular Representations and Precise Protein Localization
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Three-dimensional Imaging of Bacterial Cells for Accurate Cellular Representations and Precise Protein Localization

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A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
07:10

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues

Published on: February 19, 2019

Area of Science:

  • Bacteriology
  • Molecular Biology
  • Genetics

Background:

  • Proteins and DNA are known to localize to specific subcellular sites in bacteria.
  • Recent studies demonstrate that RNAs also exhibit localization within bacterial cells.
  • This localization suggests a regulatory role for spatial organization in bacterial processes.

Purpose of the Study:

  • To explore the phenomenon of RNA localization in bacteria.
  • To understand the mechanisms and implications of RNA spatial control.
  • To highlight the role of RNA localization in regulating gene expression and bacterial physiology.

Main Methods:

  • Review of recent publications on bacterial RNA localization.
  • Analysis of mechanisms for RNA sequestration and trapping.
  • Discussion of the functional consequences of RNA localization.

Main Results:

  • Bacterial RNAs, including tmRNA and certain mRNAs, are localized to specific subcellular sites.
  • RNA localization can be mediated by RNA binding proteins or occur at transcription sites.
  • RNA localization appears to regulate RNA abundance by controlling nuclease accessibility.

Conclusions:

  • RNA localization is a significant aspect of bacterial gene expression regulation.
  • Understanding RNA spatial control is crucial for comprehending bacterial physiology.
  • Advancements in RNA visualization techniques will facilitate further research in this area.