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Protein Networks

Protein Networks

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.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...

Protein-protein Interfaces

Protein-protein Interfaces

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 polypeptide...

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Related Experiment Video

Updated: Jul 7, 2026

Split-Ubiquitin Based Membrane Yeast Two-Hybrid (MYTH) System: A Powerful Tool For Identifying Protein-Protein Interactions

Split-Ubiquitin Based Membrane Yeast Two-Hybrid (MYTH) System: A Powerful Tool For Identifying Protein-Protein Interactions

Published on: February 1, 2010

Interaction trap/two-hybrid system to identify interacting proteins.

E A Golemis¹, I Serebriiskii, R L Finley

¹Fox Chase Cancer Center, Philadelphia, Pennsylvania, USA.

Current Protocols in Cell Biology

|January 30, 2008

Summary

This study introduces a novel yeast-based system for identifying interacting proteins. This method utilizes transcriptional activation of a reporter system to detect protein complexes and interactions.

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Split-Ubiquitin Based Membrane Yeast Two-Hybrid (MYTH) System: A Powerful Tool For Identifying Protein-Protein Interactions

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Area of Science:

Molecular Biology
Biochemistry
Genetics

Background:

Understanding protein-protein interactions is crucial for elucidating cellular mechanisms.
Existing methods for detecting protein interactions can be complex and time-consuming.

Purpose of the Study:

To present a straightforward protocol for identifying interacting proteins.
To establish a yeast-based system for detecting protein complex formation.

Main Methods:

Utilizing yeast as a biological system.
Employing transcriptional activation of a reporter system.
Testing for protein complex formation based on expected interactions.

Main Results:

Demonstrated a functional system for detecting protein interactions in yeast.
Successfully identified interacting proteins using the described protocol.
Validated the system's utility for proteins with predicted interactions.

Conclusions:

The presented yeast-based system offers an efficient method for detecting protein-protein interactions.
This protocol can be applied to study protein complex formation in various biological contexts.