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 Experiment Videos

Caveolae: biochemical analysis.

Christian Chatenay-Rivauday1, Z Petek Cakar, Paul Jenö

  • 1Division of Biochemistry, Biozentrum, University of Basel, Klingelbergstrasse 70, CH-4056 Basel, Switzerland.

Molecular Biology Reports
|August 6, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Flexible Diagnosticity in Person Impression Formation: An Integrative Framework.

Personality & social psychology bulletin·2026
Same author

Pitting base rate driven heuristics against conditional reasoning in multivariate contingency assessment.

Journal of experimental psychology. Learning, memory, and cognition·2025
Same author

Rivals reloaded: Adapting to sample-based speed-accuracy trade-offs through competitive pressure.

Journal of experimental psychology. Learning, memory, and cognition·2024
Same author

An exploration of physics envy with implications for desiderata of psychology theories.

The American psychologist·2024
Same author

Dynamics of Endothelial Cell Diversity and Plasticity in Health and Disease.

Cells·2024
Same author

Using theoretical constraints and the TASI taxonomy to delineate predictably replicable findings.

Psychonomic bulletin & review·2024

Endothelial caveolae contain ATP synthase, regulating mechanosignaling through ATP biosynthesis. This process is triggered by membrane depolarization and proton gradients, influencing endothelial cell gene regulation and ion channel activity.

Area of Science:

  • Cell Biology
  • Biochemistry

Background:

  • Caveolae are crucial cellular microdomains involved in various processes like growth regulation and molecular trafficking.
  • Understanding the protein composition and function of caveolae is essential for elucidating cellular signaling pathways.

Purpose of the Study:

  • To identify key proteins within endothelial caveolae and investigate their roles in cellular processes.
  • To explore the proposed function of ATP biosynthesis within caveolae in regulating mechanosignaling and cellular responses.

Main Methods:

  • Immunopurification of caveolae from vascular endothelial membranes to identify associated proteins.
  • Sucrose gradient velocity sedimentation and co-immunoprecipitation to analyze protein complexes and interactions.
  • Utilizing epitope-specific antibodies to detect protein conformers, including nuclear caveolin-1.

Related Experiment Videos

Main Results:

  • Abundant presence of ESA/reggie-1/flotillin-2, ATP synthase beta subunit, and annexin V was confirmed in endothelial caveolae.
  • Five proteins were found to be abundant in a caveolin-1 protein complex, with specific interactions identified between caveolin-1 isoforms, caveolin-2, actin, NADH cytochrome B5 reductase, and ESA/reggie-1/flotillin-2.
  • Evidence suggests ATP biosynthesis in caveolae regulates mechanosignaling, induced by membrane depolarization and proton gradients.

Conclusions:

  • Caveolae are dynamic structures with significant roles in ATP biosynthesis and mechanosignaling regulation in endothelial cells.
  • Membrane depolarization and proton gradients can induce ATP biosynthesis in caveolae, impacting gene regulation and ion channel activity.
  • Caveolin-1, in both its membrane and nuclear forms, along with ESA/reggie-1/flotillin-2, plays a key role in mediating these cellular responses.