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Budding Yeast Protein Extraction and Purification for the Study of Function, Interactions, and Post-translational Modifications
Published on: October 30, 2013
Optimized protein extraction for quantitative proteomics of yeasts
1Protein Science Group, Department of Biosciences, University of Kent, Canterbury, United Kingdom. T.von-der-Haar@kent.ac.uk
Plos One
|October 25, 2007
Summary
A new chemical lysis method efficiently extracts most proteins from yeast cells, improving quantitative proteomics. This technique minimizes extraction artifacts, enabling more accurate analysis for systems biology and metabolic control studies.
Area of Science:
- Biochemistry
- Molecular Biology
- Proteomics
Background:
- Accurate intracellular protein quantification is crucial for systems biology and metabolic control analysis.
- Existing yeast protein extraction methods often yield incomplete or selective results, introducing quantification artifacts.
Purpose of the Study:
- To develop a novel, high-throughput protein extraction method for yeast.
- To improve the accuracy of quantitative proteomics by minimizing extraction-related artifacts.
Main Methods:
- Chemical lysis and simultaneous solubilization using SDS and urea.
- Developed for S. cerevisiae, adaptable to various Saccharomyces species and growth conditions.
- Designed for high-throughput 96-well format extraction.
Main Results:
- The novel procedure extracts the vast majority of proteins to apparent completeness.
- The method is suitable for diverse yeast species and growth conditions.
- Extracts are compatible with downstream applications like 2D gel electrophoresis.
Conclusions:
- An improved method for quantitative protein extraction in yeast has been established.
- This method reduces artifacts in quantitative proteomics experiments.
- Enables new applications in systems biology and metabolic research.
