Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

1.5K
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
1.5K
Master Transcription Regulators02:23

Master Transcription Regulators

8.0K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a  complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
8.0K
Master Transcription Regulators02:23

Master Transcription Regulators

2.8K
2.8K
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

26.7K
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.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
26.7K
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

4.1K
4.1K
Mechanical Protein Functions01:58

Mechanical Protein Functions

5.8K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
5.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The last bacterial common ancestor encoded a complex flagellum.

bioRxiv : the preprint server for biology·2026
Same author

Ligand binding represses bacterial histidine kinase activity by inhibiting its dimerization.

The FEBS journal·2026
Same author

A bacterial NO-binding sensor domain evolved through acquisition of a cytochrome-derived c-type heme-binding motif.

bioRxiv : the preprint server for biology·2026
Same author

The PAS domain of the polarly localized histidine kinase FlrB in <i>Vibrio cholerae</i> controls class III flagellar transcription and contributes to intestinal colonization.

mBio·2025
Same author

Chemoreceptor family in plant-associated bacteria responds preferentially to the plant signal molecule glycerol 3-phosphate.

Genome biology·2025
Same author

Specificities of chemosensory receptors in the human gut microbiota.

Proceedings of the National Academy of Sciences of the United States of America·2025

Related Experiment Video

Updated: Mar 7, 2026

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices
10:48

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices

Published on: September 7, 2021

5.5K

By Staying Together, Two Genes Keep the Motor Running.

Igor B Zhulin1

  • 1Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA; Department of Microbiology, University of Tennessee, Knoxville, TN 37996, USA.

Structure (London, England : 1993)
|February 9, 2017
PubMed
Summary

Researchers found that two bacterial flagellar motor proteins interact, forming a shared structural domain. This discovery explains how their genes remain linked throughout evolution.

More Related Videos

Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
14:47

Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry

Published on: May 17, 2016

10.3K
Repressing Gene Transcription by Redirecting Cellular Machinery with Chemical Epigenetic Modifiers
10:28

Repressing Gene Transcription by Redirecting Cellular Machinery with Chemical Epigenetic Modifiers

Published on: September 20, 2018

7.0K

Related Experiment Videos

Last Updated: Mar 7, 2026

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices
10:48

Generation of Human Motor Units with Functional Neuromuscular Junctions in Microfluidic Devices

Published on: September 7, 2021

5.5K
Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry
14:47

Identification of MyoD Interactome Using Tandem Affinity Purification Coupled to Mass Spectrometry

Published on: May 17, 2016

10.3K
Repressing Gene Transcription by Redirecting Cellular Machinery with Chemical Epigenetic Modifiers
10:28

Repressing Gene Transcription by Redirecting Cellular Machinery with Chemical Epigenetic Modifiers

Published on: September 20, 2018

7.0K

Area of Science:

  • Structural biology
  • Microbiology
  • Evolutionary biology

Background:

  • The bacterial flagellar motor is a complex molecular machine essential for bacterial motility.
  • Understanding protein interactions within this motor is key to deciphering its function and evolution.

Purpose of the Study:

  • To investigate the structural basis of the interaction between two key proteins in the bacterial flagellar motor.
  • To elucidate the evolutionary implications of this protein interaction.

Main Methods:

  • The study utilized structural biology techniques (details not specified in the abstract).
  • Comparative analysis of protein structures and gene organization.

Main Results:

  • A shared structural domain was identified between two interacting proteins of the bacterial flagellar motor.
  • This shared domain facilitates a unique interaction mechanism.

Conclusions:

  • The interaction and shared domain between these flagellar motor proteins are evolutionarily conserved.
  • This structural arrangement likely plays a role in maintaining the co-evolution of the associated genes.