Related Experiment Video
Updated: Aug 10, 2026
05:49
Protein Engineering by Yeast Surface Display
Published on: November 29, 2024
Profiling Protein-Peptide Interactions by Yeast Surface Display
Joseph D Hurley1, Andrew C Kruse1
1Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
Current Protocols
|August 8, 2026
Summary
This study presents a cost-effective, large-scale yeast surface display library for discovering protein-binding peptides. The protocol enables rapid identification of thousands of candidate peptide sequences for diverse protein targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Biotechnology
Background:
- Protein-peptide interactions are crucial for biological processes and drug discovery.
- Identifying novel peptide ligands for specific protein targets remains a significant research challenge.
Purpose of the Study:
- To describe a protocol for discovering protein-binding peptides using a large, target-agnostic yeast surface display library.
- To provide a commercially available and cost-effective solution for peptide ligand discovery.
Main Methods:
- Utilizing a yeast surface display library with approximately 6.1 × 10^9 unique clones.
- Employing iterative rounds of cell sorting (MACS and FACS) for enrichment of target-binding cells.
- Analyzing selected peptide pools using next-generation sequencing (NGS).
Main Results:
- Identification of thousands of candidate target-binding peptide sequences within weeks.
- Demonstration of broad coverage of short peptide sequence space.
- Successful application to diverse protein targets amenable to purification and labeling.
Conclusions:
- The described protocol offers a robust and efficient method for discovering novel protein-binding peptides.
- The commercially available library and streamlined workflow facilitate basic research and therapeutic discovery.
- Practical considerations for optimizing selection outcomes are highlighted.
