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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Protein Networks02:26

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An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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Related Experiment Video

Updated: Jul 23, 2025

A Yeast 2-Hybrid Screen in Batch to Compare Protein Interactions
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A Yeast 2-Hybrid Screen in Batch to Compare Protein Interactions

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Next-Generation Yeast Two-Hybrid Screening to Discover Protein-Protein Interactions.

J Mitch Elmore1,2,3, Valeria Velásquez-Zapata4,5, Roger P Wise6,4,5

  • 1USDA-Agricultural Research Service, Cereal Disease Laboratory, St. Paul, MN, USA. mitch.elmore@usda.gov.

Methods in Molecular Biology (Clifton, N.J.)
|July 14, 2023
PubMed
Summary
This summary is machine-generated.

This study introduces a streamlined yeast two-hybrid screening method using batch liquid cultures. This approach efficiently identifies protein-protein interactions through next-generation sequencing, enhancing discovery of novel biological partnerships.

Keywords:
Interaction screeningProtein–protein interactionsSequencingYeast two-hybridcDNA library

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Informatic Analysis of Sequence Data from Batch Yeast 2-Hybrid Screens
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Area of Science:

  • Molecular Biology
  • Biochemistry
  • Genetics

Background:

  • Yeast two-hybrid (Y2H) is a key method for identifying protein-protein interactions.
  • Conventional Y2H screening requires individual colony analysis, which is laborious and time-consuming.
  • Developing high-throughput Y2H screening methods is crucial for advancing interactome mapping.

Purpose of the Study:

  • To present a simplified, batch-based yeast two-hybrid screening protocol.
  • To enable efficient identification and quantification of protein-protein interactions from large cDNA libraries.
  • To leverage next-generation sequencing for high-throughput analysis of Y2H screening results.

Main Methods:

  • Implementing yeast two-hybrid screening in batch liquid culture.
  • Enriching positive yeast cell populations under selective pressure.
  • Utilizing next-generation sequencing for amplification and analysis of prey cDNAs.

Main Results:

  • Successful identification of protein-protein interactions using the batch liquid culture Y2H method.
  • Quantification and ranking of interacting prey cDNAs through next-generation sequencing.
  • Demonstration of a simplified and efficient Y2H screening workflow.

Conclusions:

  • The described batch liquid culture Y2H approach offers a significant improvement in efficiency and throughput.
  • This method facilitates large-scale discovery of protein-protein interactions.
  • The integration with next-generation sequencing provides a powerful tool for interactome studies.