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A Yeast 2-Hybrid Screen in Batch to Compare Protein Interactions
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High-Quality Yeast-2-Hybrid Interaction Network Mapping.

Melina Altmann1, Stefan Altmann1, Claudia Falter1

  • 1Helmholtz Zentrum München, Institute of Network Biology (INET), Munich, Germany.

Current Protocols in Plant Biology
|June 27, 2018
PubMed
Summary
This summary is machine-generated.

This study presents a robust four-step yeast two-hybrid (Y2H) protocol for mapping protein interactions. The high-throughput method enables efficient screening of large open reading frame (ORF) collections for accurate interactome mapping.

Keywords:
high-throughputinteractomenetworkprotein-protein interactionsystems biology

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Area of Science:

  • Molecular Biology
  • Biochemistry
  • Systems Biology

Background:

  • Understanding protein-protein interactions is crucial for deciphering cellular mechanisms.
  • Existing methods for mapping protein interaction networks can be time-consuming and have high false-discovery rates.
  • Systematic screening of large collections of open reading frames (ORFs) is needed for comprehensive interactome analysis.

Purpose of the Study:

  • To describe a novel, high-throughput yeast two-hybrid (Y2H) interaction mapping protocol.
  • To provide a detailed, four-step procedure for systematic screening of medium-to-large ORF collections.
  • To enable the assembly of genome-scale interactome maps and investigate host-microbe interactions.

Main Methods:

  • A four-step high-throughput yeast two-hybrid (Y2H) protocol is detailed.
  • The protocol involves primary screening using minipools, secondary verification of positives, sequencing for candidate interaction pair identification, and final verification.
  • Yeast expression clones are assembled from an existing ORFeome collection.

Main Results:

  • The protocol demonstrates a low false-discovery rate, essential for reliable network mapping.
  • The method is well-suited for analyzing focused networks, modules of interest, and host-microbe interactions.
  • The described procedure facilitates the systematic screening of protein interactions.

Conclusions:

  • The presented Y2H protocol offers an efficient and accurate method for generating meaningful protein interaction network maps.
  • This high-throughput approach supports large-scale interactome mapping and the study of complex biological interactions.
  • The protocol is valuable for various research areas, including systems biology and host-microbe interaction studies.