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

Protein sorting. Pulling in the proteins

N Pfanner1, M Meijer

  • 1Biochemisches Institut, Universität Freiburg, Germany.

Current Biology : CB
|February 1, 1995
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

Dilated cardiomyopathy phenotype in a 10-week-old Oriental shorthair kitten.

Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology·2025
Same author

Taxonomy, phylogeny and identification of <i>Chaetomiaceae</i> with emphasis on thermophilic species.

Studies in mycology·2022
Same author

Fungal Planet description sheets: 1112-1181.

Persoonia·2021
Same author

Potential associations between immune signaling genes, deactivated microglia, and oligodendrocytes and cortical gray matter loss in patients with long-term remitted Cushing's disease.

Psychoneuroendocrinology·2021
Same author

[Osteoporosis in androgen deprivation therapy: finding the balance between social and individual interests].

Tijdschrift voor psychiatrie·2021
Same author

Classification of <i>Aspergillus</i>, <i>Penicillium</i>, <i>Talaromyces</i> and related genera (<i>Eurotiales</i>): An overview of families, genera, subgenera, sections, series and species.

Studies in mycology·2020
Same journal

Pitch selectivity in ferret auditory cortex.

Current biology : CB·2026
Same journal

A cell size-dependent competition between geometry and polarity governs nuclear and spindle positioning in early embryos.

Current biology : CB·2026
Same journal

Trophic cascades drive sustainability in the agricultural heritage rice-fish coculture system.

Current biology : CB·2026
Same journal

Tracking Satb2-positive retinal ganglion cells in zebrafish unveils developmental functional reorganization.

Current biology : CB·2026
Same journal

RhoGAP54D promotes cell size asymmetry and inhibits pulsatile myosin activity in Drosophila neural stem cells.

Current biology : CB·2026
Same journal

Increased rates of hybridization in swordtails are associated with water pollution.

Current biology : CB·2026
See all related articles

Mitochondrial protein import involves two key mechanisms: one driven by membrane potential and another utilizing pulling and trapping forces. These processes are crucial for cellular function.

Area of Science:

  • Cell Biology
  • Mitochondrial Biology
  • Protein Trafficking

Background:

  • Mitochondria are vital organelles responsible for cellular respiration.
  • Efficient protein import into mitochondria is essential for their biogenesis and function.
  • The precise mechanisms governing mitochondrial protein translocation are still under investigation.

Purpose of the Study:

  • To elucidate the distinct driving forces behind mitochondrial protein import.
  • To differentiate the roles of membrane potential versus mechanical forces in this process.

Main Methods:

  • Utilizing in vitro assays to reconstitute mitochondrial protein import.
  • Employing biophysical techniques to measure forces and membrane potential changes during translocation.

Related Experiment Videos

Main Results:

  • Identified membrane potential as a primary driving force for certain mitochondrial protein precursors.
  • Demonstrated a secondary mechanism involving pulling and trapping forces for other substrates.
  • Showcased the interplay between these two mechanisms in regulating import efficiency.

Conclusions:

  • Mitochondrial protein import is a multi-faceted process.
  • Both electrochemical gradients and mechanical forces contribute to efficient protein translocation across mitochondrial membranes.