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Related Experiment Video

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Directed Evolution Method in Saccharomyces cerevisiae: Mutant Library Creation and Screening

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Double-mutant cycles: new directions and applications.

Amnon Horovitz¹, Rachel C Fleisher¹, Tridib Mondal¹

¹Department of Structural Biology, Weizmann Institute of Science, Rehovot 7610001, Israel.

Current Opinion in Structural Biology

|April 29, 2019

Summary

Double-mutant cycle (DMC) analysis reveals protein interaction energetics and higher-order effects. Advances enable high-throughput studies, offering insights into protein cooperativity and aiding in structural analysis and docking.

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Area of Science:

Biochemistry
Structural Biology
Computational Biology

Background:

Double-mutant cycle (DMC) analysis quantifies direct and long-range interactions in biomolecules.
It is crucial for understanding protein folding, function, and higher-order effects like cooperativity.

Purpose of the Study:

To review novel applications of DMC analysis.
To highlight advancements in native mass spectrometry and high-throughput methods for DMC.
To demonstrate the characterization of complex interaction networks and higher-order effects.

Main Methods:

Leveraging native mass spectrometry for DMC analysis.
Employing high-throughput techniques like next-generation sequencing and protein complementation assays.
Applying DMC to unravel three-body effects and cooperativity in proteins.

Main Results:

High-throughput DMC analysis enables the study of large interaction networks in proteins.
These studies provide insights into the extent of cooperativity (epistasis) in protein structures.
DMC analysis validates correlated mutation analysis and offers restraints for protein docking.

Conclusions:

Modern techniques significantly enhance the scope and throughput of DMC analysis.
DMC is a powerful tool for dissecting complex molecular interactions and cooperativity.
This approach has broad implications for understanding protein structure-function relationships and computational modeling.