Ubiquitin-specific protease 20 in human disease: Emerging role and therapeutic implications
Biying Qin1, Lihui Zhou1, Feng Wang1
1Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China.
Abstract:
Ubiquitination is one of the most important post-translational protein modifications; the linking of the 76-amino-acid polypeptide ubiquitin dictates protein fate. Deubiquitinating enzymes (DUBs) can specifically remove ubiquitin attached to substrate proteins, thereby stabilizing the protein and preventing its degradation through the proteasome. The balance between ubiquitination and deubiquitination plays a key role in maintaining protein function and in regulating cellular homeostasis. The development of drugs targeting DUBs has attracted the widespread attention of scientists and pharmaceutical companies. Ubiquitin-specific protease 20 (USP20) belongs to the ubiquitin-specific peptidase (USP) subfamily of DUBs and its important physiological role has been assessed in recent years. Previous studies on USP20 have focused on its activity in antiviral immunity and cancer. However, its role in metabolic disorders and neurological diseases has also been revealed. The physiological importance of USP20 in disease is being reported continuously, indicating its potential to be a valuable therapeutic target in the future. The small molecule inhibitor GSK2643943A has been shown to inhibit the deubiquitination activity of USP20. Herein, we discuss the structure, regulation, and emerging physiological roles of USP20 in disease, hoping to highlight their therapeutic implications for future studies.
Insights
Deubiquitinating enzymes (DUBs) like ubiquitin-specific protease 20 (USP20) regulate protein fate. USP20
Area of Science:
- Biochemistry
- Molecular Biology
- Cellular Homeostasis
Background:
- Ubiquitination is a crucial post-translational modification regulating protein stability and cellular processes.
- Deubiquitinating enzymes (DUBs) counteract ubiquitination, maintaining protein function and homeostasis.
- Ubiquitin-specific protease 20 (USP20) is a DUB with emerging roles in various physiological and pathological contexts.
Purpose of the Study:
- To review the structure, regulation, and physiological roles of USP20.
- To highlight the therapeutic potential of USP20 in disease.
- To discuss the implications of USP20 inhibition, exemplified by GSK2643943A.
Main Methods:
- Literature review of studies on USP20.
- Analysis of USP20's involvement in antiviral immunity, cancer, metabolic disorders, and neurological diseases.
- Discussion of the inhibitory effects of small molecules like GSK2643943A on USP20 activity.
Main Results:
- USP20 plays significant roles beyond its previously known functions in antiviral immunity and cancer.
- Emerging evidence implicates USP20 in metabolic and neurological diseases.
- The small molecule inhibitor GSK2643943A demonstrates the potential for targeting USP20's deubiquitination activity.
Conclusions:
- USP20 is a critical regulator of protein fate with expanding implications in disease.
- Targeting USP20 presents a promising therapeutic strategy for various disorders.
- Further research into USP20's roles and inhibition is warranted for future therapeutic development.
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