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

Modeling diffusional transport in the interphase cell nucleus.

Annika Wedemeier1, Holger Merlitz, Chen-Xu Wu

  • 1Deutsches Krebsforschungszentrum, D-69120 Heidelberg, Germany.

The Journal of Chemical Physics
|August 4, 2007
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

Efficient and reversible chirality induction between protein and achiral plasmonic assemblies.

Nature materials·2026
Same author

Tuning nuclear rheology through transient chromatin cross-links.

Physical review. E·2026
Same author

A Self-Organized Liquid Reaction Container for Cellular Memory.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Molecular dynamics investigation of polymer-decorated nanoparticles with co-nonsolvent: Structural transitions from isotropic layers to heterogeneous patches.

The Journal of chemical physics·2025
Same author

An Analytical Understanding of Reentrant Condensation of a Polyelectrolyte in the Presence of an Oppositely Charged Surfactant.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

CHMP6 as a novel prognostic biomarker in bladder cancer: insights from a comprehensive cell death-related gene risk model.

Frontiers in oncology·2025
Same journal

Revisiting crossed-correlated baths in open quantum systems simulated by HEOM or T-TEDOPA.

The Journal of chemical physics·2026
Same journal

Vesicle size and membrane composition control monomer transfer pathways in multicomponent lipid vesicles.

The Journal of chemical physics·2026
Same journal

Polaron-mediated exciton dynamics of P(NDI2OD-T2) unveiled by transient absorption spectroscopy under electrochemical conditions.

The Journal of chemical physics·2026
Same journal

Green-Kubo relation in a mesoscale odd fluid model.

The Journal of chemical physics·2026
Same journal

Nitrogenation of microscopic MoS2 surfaces by oxidation scanning probe lithography.

The Journal of chemical physics·2026
Same journal

Molecular structure, binding, and disorder in TDBC-Ag plexcitonic assemblies.

The Journal of chemical physics·2026
See all related articles

This study models particle diffusion in cell nuclei using chromatin fiber networks. Effective chain occupancy simplifies diffusion analysis, revealing a universal relationship independent of network conformation.

Area of Science:

  • Biophysics
  • Cell Biology
  • Computational Biology

Background:

  • Particle transport within the cell nucleus is crucial for biological processes.
  • Chromatin fiber networks form complex three-dimensional structures that influence molecular movement.
  • Understanding diffusion dynamics is key to deciphering nuclear organization and function.

Purpose of the Study:

  • To develop a lattice model for simulating diffusional transport in the interphase cell nucleus.
  • To investigate how the geometry of chromatin fiber networks affects particle diffusion.
  • To identify factors that govern particle movement within the nucleus.

Main Methods:

  • Creation of dense chromatin fiber networks using random obstacles, random walk, and self-avoiding random walk models.

Related Experiment Videos

  • Comparison of discrete and continuous random walk models to validate lattice discretization.
  • Systematic variation of network parameters (occupation volume, chain length, persistence length) and walker size.

    • Main Results:

    • Lattice discretization does not significantly alter particle diffusion.
    • Monomer adjacency, excluded volume effects, and persistence length influence particle diffusion.
    • Effective chain occupancy, considering walker size, normalizes diffusion data onto a master curve, removing conformational dependence.

    Conclusions:

    • The proposed lattice model accurately simulates particle diffusion in nuclear environments.
    • Effective chain occupancy is a critical parameter for understanding diffusion in complex polymer networks.
    • This approach simplifies the analysis of diffusion, offering insights into nuclear transport mechanisms.