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A Protein Preparation Method for the High-throughput Identification of Proteins Interacting with a Nuclear Cofactor Using LC-MS/MS Analysis
Published on: January 24, 2017
High throughput analysis of nuclear receptor-cofactor interactions
Michael L Goodson1, Behnom Farboud, Martin L Privalsky
1Section of Microbiology, Division of Biological Sciences, University of California at Davis, Davis, CA, USA.
Methods in Molecular Biology (Clifton, N.J.)
|January 2, 2009
Summary
Researchers developed a high-throughput glutathione-S-transferase pulldown assay for studying nuclear receptor/cofactor interactions. This method enhances efficiency and sensitivity for protein-protein binding analysis.
Area of Science:
- Biochemistry
- Molecular Biology
- Cellular Signaling
Background:
- Nuclear receptors and their cofactors play critical roles in gene regulation.
- Studying direct protein-protein interactions is essential for understanding these regulatory mechanisms.
- Existing methods like coimmunoprecipitation and yeast/mammalian two-hybrid systems have limitations.
Purpose of the Study:
- To develop a more efficient and sensitive assay for studying nuclear receptor/cofactor interactions.
- To adapt the glutathione-S-transferase (GST) pulldown assay for high-throughput analysis.
- To improve the detection of weak protein-protein interactions.
Main Methods:
- Development of a high-throughput GST pulldown assay.
- Utilized a filter microplate format for parallel sample processing.
- Optimized protocols for increased sensitivity and reduced reagent consumption.
Main Results:
- The high-throughput assay significantly reduces time and reagent requirements.
- The method demonstrates increased sensitivity for detecting weaker protein-protein interactions.
- Parallel processing allows for efficient analysis of multiple nuclear receptor/cofactor pairs.
Conclusions:
- The developed high-throughput GST pulldown assay is a valuable tool for studying nuclear receptor/cofactor interactions.
- This assay offers advantages in terms of speed, cost-effectiveness, and sensitivity.
- It facilitates a deeper understanding of the molecular mechanisms underlying nuclear receptor function.
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