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Control of protein stability by post-translational modifications
Ji Min Lee1, Henrik M Hammarén2, Mikhail M Savitski2
1Graduate School of Medical Science & Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Korea.
Nature Communications
|January 13, 2023
Summary
Post-translational modifications (PTMs) regulate protein stability by targeting specific protein regions called degrons. Understanding these PTM-activated or PTM-inactivated degrons can reveal new drug targets.
Area of Science:
- Biochemistry
- Molecular Biology
- Proteomics
Background:
- Protein stability is crucial for cellular function and is tightly regulated.
- Post-translational modifications (PTMs) are key regulators of protein fate, including degradation.
- Degrons are specific protein regions that control protein stability, often influenced by PTMs.
Purpose of the Study:
- To summarize current knowledge on how various PTMs regulate protein stability.
- To highlight common mechanisms and themes in PTM-regulated degrons.
- To identify potential novel drug targets by understanding PTM-mediated protein degradation pathways.
Main Methods:
- Literature review and synthesis of existing research on PTMs and protein degradation.
- Analysis of known PTM-activated and PTM-inactivated degron mechanisms.
- Identification of common regulatory themes across different PTMs and proteins.
Main Results:
- PTMs play diverse roles in protein degradation, either promoting (PTM-activated degrons) or inhibiting (PTM-inactivated degrons) it.
- Specific amino acid residues within regulatory domains are critical sites for PTMs that influence degrons.
- Common regulatory principles govern PTM interactions with degrons across various protein families.
Conclusions:
- PTM-mediated regulation of protein stability is a complex and widespread phenomenon.
- Understanding PTM-regulated degrons offers a promising avenue for discovering novel therapeutic targets.
- Further research into these mechanisms can advance drug development for diseases linked to protein instability.
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