High-throughput screening for protein-protein interactions using yeast two-hybrid arrays

Area of Science:

• Biochemistry
• Molecular Biology
• Genomics

Background:

• Protein arrays enable parallel assays for numerous proteins in a single experiment.
• They serve as a viable alternative to traditional libraries for protein screening.
• Functional screening of protein interactions is crucial for understanding cellular mechanisms.

Purpose of the Study:

• To describe a protein array system utilizing living yeast cells.
• To demonstrate its application in functional screening for protein interactions using the two-hybrid assay.
• To present protocols adaptable to various genomes or proteome subsets.

Main Methods:

• Construction of a protein array using living yeast (Saccharomyces cerevisiae) cells.
• Implementation of the two-hybrid assay for functional screening of protein interactions.
• Adaptation of protocols for yeast proteome analysis.

Main Results:

• Successful development of a living yeast cell-based protein array.
• Demonstration of the array's utility in identifying protein interactions.
• Validation of the protocol's applicability beyond the yeast proteome.

Conclusions:

• Living yeast cell protein arrays are effective for functional screening of protein interactions.
• The described two-hybrid assay protocol is versatile and applicable to diverse genomic contexts.
• This approach provides a powerful tool for large-scale proteome analysis and interaction discovery.