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Related Experiment Videos

Studying nuclear disassembly in vitro using Xenopus egg extract.

Meda M Higa1, Katharine S Ullman, Amy J Prunuske

  • 1Department of Oncological Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA.

Methods (San Diego, Calif.)
|August 2, 2006
PubMed
Summary

Xenopus egg extract enables in vitro nuclear envelope assembly and disassembly. This cell-free system allows detailed study of nuclear remodeling during cell division, identifying key molecular players.

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Area of Science:

  • Cell Biology
  • Molecular Biology
  • Developmental Biology

Background:

  • Xenopus egg extract is a powerful cell-free system for studying cell cycle dynamics.
  • Nuclear envelope formation and breakdown are critical events in cell division.

Purpose of the Study:

  • To describe a procedure for assembling and disassembling in vitro nuclei using Xenopus egg extract.
  • To enable the study of nuclear envelope remodeling during mitosis in a controlled environment.

Main Methods:

  • Preparation of Xenopus egg extract.
  • Incubation of egg extract with sperm chromatin DNA and an energy regeneration system.
  • Induction of mitotic entry using recombinant cyclin.

Main Results:

Related Experiment Videos

  • Formation of functional in vitro nuclei with nuclear pore complexes.
  • Demonstration of de novo nuclear envelope assembly and nucleocytoplasmic transport.
  • Induction of nuclear envelope disassembly upon mitotic entry.

Conclusions:

  • Xenopus egg extract provides a versatile system for investigating nuclear envelope dynamics.
  • This method facilitates the identification of molecular mechanisms underlying nuclear remodeling during mitosis.