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Signal Attenuation as a Rat Model of Obsessive Compulsive Disorder

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Published on: January 9, 2015

Allostery Frustrates the Experimentalist.

Stefano Gianni¹, Per Jemth²

¹Istituto Pasteur-Fondazione Cenci Bolognetti and Istituto di Biologia e Patologia Molecolari del CNR, Dipartimento di Scienze Biochimiche "A. Rossi Fanelli," Sapienza Università di Roma, 00185 Rome, Italy.

Journal of Molecular Biology

|December 31, 2022

Summary

This summary is machine-generated.

Allostery describes how proteins change function upon ligand binding. Measuring this phenomenon, especially in single domains, presents experimental challenges, potentially limiting its biological relevance due to high sensitivity to perturbations.

Keywords:

allosteric networks allostery protein domain protein folding protein frustration

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Area of Science:

Biochemistry
Structural Biology
Protein Dynamics

Background:

Proteins exhibit complex interactions and dynamics crucial for cellular functions.
Allostery, the modulation of protein function by ligand binding, has evolved to encompass broader long-range interactions.
The dynamic and heterogeneous nature of proteins complicates the quantitative description of allosteric mechanisms.

Purpose of the Study:

To discuss experimental challenges in quantitatively describing single-domain allostery.
To explore the relationship between allostery and protein frustration.
To evaluate the biological relevance of allosteric networks in single protein domains.

Main Methods:

Review of experimental perspectives on allostery measurement.
Theoretical discussion linking allostery and protein frustration.
Analysis of sensitivity to perturbation in allosteric networks.

Main Results:

Quantitative description of single-domain allostery faces inherent experimental limitations.
The definition of allostery is intertwined with measurement challenges.
Allosteric networks in single domains exhibit high sensitivity to perturbations.

Conclusions:

Experimental measurement of allostery is limited by protein dynamics and heterogeneity.
The broad definition of allostery complicates its quantitative assessment.
Highly perturbed allosteric networks in single domains may lack significant biological relevance.