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Reading protein modifications with interaction domains.

Bruce T Seet¹, Ivan Dikic, Ming-Ming Zhou

¹Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada.

Nature Reviews. Molecular Cell Biology

|July 11, 2006

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Protein modifications create binding sites that allow protein-interaction domains to read the proteome state. These interactions synergize to regulate cellular organization and behavior.

Area of Science:

Molecular Biology
Cell Biology
Biochemistry

Background:

Proteins undergo numerous post-translational modifications (PTMs) that dynamically alter their function.
Many PTMs generate specific binding sites recognized by protein-interaction domains.

Purpose of the Study:

To propose a model where protein-interaction domains collectively interpret PTMs.
To elucidate how PTMs are coupled to cellular organization through these domains.
To identify synergistic strategies in modification-dependent interactions regulating cell behavior.

Main Methods:

The study is primarily conceptual, proposing a framework based on existing literature.
It involves analyzing known protein-interaction mechanisms and PTMs.
It synthesizes information to build a model of proteome interpretation.

Related Experiment Videos

Main Results:

Protein-interaction domains act as a network to read the combinatorial state of PTMs.
This reading mechanism links PTMs to the regulation of cellular organization.
Common synergistic strategies in these interactions are identified.

Conclusions:

The coordinated action of protein-interaction domains is crucial for interpreting the proteome's PTM landscape.
This interpretation directly influences cellular organization and behavior.
Understanding these networks offers insights into cellular regulation and potential therapeutic targets.