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Updated: Apr 18, 2026

Production of Xenopus tropicalis Egg Extracts to Identify Microtubule-associated RNAs

Production of Xenopus tropicalis Egg Extracts to Identify Microtubule-associated RNAs

Published on: June 27, 2013

Small-molecule high-throughput screening utilizing Xenopus egg extract.

Matthew R Broadus¹, P Renee Yew, Stephen R Hann

¹Department of Cell and Developmental Biology, Vanderbilt University Medical Center, 465 21st Avenue South, U-4213A Learned Lab/MRBIII, Nashville, TN, 37232-8240, USA.

Methods in Molecular Biology (Clifton, N.J.)

|January 26, 2015

Summary

This summary is machine-generated.

Researchers developed a novel cell-free screening method using Xenopus laevis egg extract. This system identifies small molecules that modulate protein turnover, offering a new tool for drug discovery and biological pathway analysis.

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Last Updated: Apr 18, 2026

Production of Xenopus tropicalis Egg Extracts to Identify Microtubule-associated RNAs

Production of Xenopus tropicalis Egg Extracts to Identify Microtubule-associated RNAs

Published on: June 27, 2013

Xenopus laevis Egg Extract Preparation and Live Imaging Methods for Visualizing Dynamic Cytoplasmic Organization

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Published on: June 6, 2021

A Cell-Free Assay Using Xenopus laevis Embryo Extracts to Study Mechanisms of Nuclear Size Regulation

A Cell-Free Assay Using Xenopus laevis Embryo Extracts to Study Mechanisms of Nuclear Size Regulation

Published on: August 8, 2016

Area of Science:

Biochemistry
Molecular Biology
Drug Discovery

Background:

Traditional small-molecule screens use cell lines, purified proteins, or model organisms.
These methods have limitations in recapitulating complex cellular reactions.
There is a need for efficient and tractable systems for pathway modulation studies.

Purpose of the Study:

To describe a novel cell-free screening method using Xenopus laevis egg extract.
To demonstrate its utility in identifying modulators of protein turnover.
To establish a tractable system for studying complex biological pathways.

Main Methods:

Utilized Xenopus laevis egg extract as a cell-free system.
Developed a luciferase-based fusion system to monitor protein turnover.
Screened for small-molecule modulators affecting protein degradation pathways.

Main Results:

The Xenopus laevis egg extract system successfully recapitulated key cellular reactions.
The luciferase-based assay effectively identified small molecules impacting protein turnover.
Demonstrated the tractability and biological activity of the cell-free system.

Conclusions:

Xenopus laevis egg extract provides a powerful cell-free platform for biological screening.
This method enables the identification of small-molecule modulators of protein turnover.
Offers a promising alternative to traditional screening systems for drug discovery.