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Related Experiment Video

Updated: Apr 5, 2026

Reconstitution of Cell-cycle Oscillations in Microemulsions of Cell-free Xenopus Egg Extracts
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Reconstitution of Cell-cycle Oscillations in Microemulsions of Cell-free Xenopus Egg Extracts

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Cell Cycle Synchronization in Xenopus Egg Extracts.

Peter J Gillespie1, Julia Neusiedler, Kevin Creavin

  • 1Centre for Gene Regulation & Expression, University of Dundee, Dow Street, Dundee, DD1 5EH, UK.

Methods in Molecular Biology (Clifton, N.J.)
|August 10, 2015
PubMed
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The Xenopus laevis egg extract system provides a powerful in vitro model for studying the eukaryotic cell cycle. This method allows detailed biochemical analysis of cell cycle transitions and protein functions.

Area of Science:

  • Cell Biology
  • Biochemistry
  • Developmental Biology

Background:

  • The South African clawed frog Xenopus laevis is a key model organism in cell cycle research.
  • Cell-free extracts from Xenopus eggs recapitulate in vivo eukaryotic cell cycle functions.
  • This system enables in vitro study of cell cycle mechanisms and regulation.

Purpose of the Study:

  • To describe methods for preparing Xenopus egg extracts and demembranated sperm nuclei.
  • To detail the use of these extracts for studying eukaryotic cell cycle transitions.
  • To provide techniques for investigating cell cycle protein functions.

Main Methods:

  • Preparation of Xenopus laevis egg extracts.
  • Preparation of demembranated sperm nuclei.

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Last Updated: Apr 5, 2026

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  • In vitro assays for cell cycle transitions and protein function analysis.

    • Main Results:

    • Established protocols for Xenopus egg extract and sperm nuclei preparation.
    • Demonstrated utility of the system for studying cell cycle progression.
    • Showcased methods for manipulating cell cycle transitions with drugs.
    • Provided foundational techniques for protein function studies.

    Conclusions:

    • The Xenopus cell-free system is a versatile tool for biochemical analysis of the eukaryotic cell cycle.
    • This system facilitates the study of cell cycle regulation, dynamics, and protein involvement.
    • The described methods offer a practical starting point for cell cycle research.