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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Microarray Analysis for Saccharomyces cerevisiae
13:17

Microarray Analysis for Saccharomyces cerevisiae

Published on: April 7, 2011

Microarray analysis for Saccharomyces cerevisiae.

Scott Tighe1, Tim Hunter, Pat Reed

  • 1Vermont Genetics Network, The University of Vermont, USA.

Journal of Visualized Experiments : Jove
|April 21, 2011
PubMed
Summary
This summary is machine-generated.

This study investigated how hydrogen peroxide (H₂O₂) oxidative stress affects gene expression in Saccharomyces cerevisiae. Results show significant changes in gene activity following H₂O₂ exposure, providing insights into yeast stress responses.

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Last Updated: Jun 2, 2026

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Area of Science:

  • Molecular Biology
  • Yeast Genetics
  • Oxidative Stress Research

Background:

  • Oxidative stress is a critical factor influencing cellular function and survival.
  • Hydrogen peroxide (H₂O₂) is a common inducer of oxidative stress in biological systems.
  • Understanding yeast gene expression changes under stress is vital for cellular biology research.

Purpose of the Study:

  • To investigate the impact of hydrogen peroxide (H₂O₂) induced oxidative stress on gene expression in Saccharomyces cerevisiae.
  • To establish a protocol for analyzing gene expression changes in yeast exposed to oxidative stress.

Main Methods:

  • Yeast cultures (Saccharomyces cerevisiae) were grown and divided into control and H₂O₂-treated groups.
  • Treatment involved exposure to 0.5 mM H₂O₂ in Hanks Buffered Saline (HBSS) for 1 hour.
  • Gene expression analysis was performed using RNA extraction, biotin-labeled cRNA synthesis, and Affymetrix yeast GeneChip hybridization.

Main Results:

  • Exposure to H₂O₂ significantly altered gene expression patterns in Saccharomyces cerevisiae.
  • Bioinformatics analysis revealed specific genes and pathways affected by oxidative stress.
  • The protocol successfully generated measurable gene expression data for analysis.

Conclusions:

  • Hydrogen peroxide induces significant changes in yeast gene expression.
  • This protocol provides a reliable method for studying oxidative stress responses in yeast at the genomic level.
  • Findings contribute to understanding cellular defense mechanisms against oxidative damage.