USP24 Protein

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USP24 Protein

Overview

<table class="infobox infobox-protein">
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<th class="infobox-header" colspan="2">USP24 Protein</th>
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<td class="label">Symbol</td>
<td><strong>USP24</strong></td>
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<td class="label">Full Name</td>
<td>USP24</td>
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<td class="label">Type</td>
<td>Protein</td>
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<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/?query=USP24" target="_blank">Search UniProt</a></td>
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<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
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The USP24 Protein (Ubiquitin-Specific Protease 24) is a large deubiquitinating enzyme belonging to the USP family of cysteine proteases. With a molecular weight of approximately 262 kDa and consisting of 2,071 amino acids, USP24 is one of the larger deubiquitinating enzymes in the human proteome. This page provides comprehensive information about its molecular function, structure, disease associations, and therapeutic implications for neurodegenerative diseases.

USP24 Protein

Introduction

Usp24 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

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USP24 Protein

Overview

USP24 Protein

Introduction

Usp24 Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

USP24 (Ubiquitin-Specific Protease 24) is encoded by the USP24 gene located on chromosome 9p13.3, a region that has been implicated in various neurological disorders [@nalls2014]. As a deubiquitinating enzyme (DUB), USP24 plays critical roles in regulating protein stability, signaling pathways, and cellular homeostasis—all processes fundamental to neuronal survival and function.

Structure

USP24 possesses a complex multi-domain architecture that enables its diverse functional capabilities:

Ubiquitin-specific protease domain (C-terminal, ~350 amino acids): Contains the catalytic cysteine protease core responsible for hydrolyzing ubiquitin chains [@komander2009]
Multiple UBP-type zinc finger domains (N-terminal, 4-5 domains): These regulatory domains mediate protein-protein interactions and substrate recognition [@koulich2008]
LRLP motif: Involved in substrate specificity and positioning within the active site
UBA domains: Ubiquitin-associated domains that facilitate binding to ubiquitinated substrates
Multiple regulatory phosphorylation sites: Including serine/threonine residues that modulate enzymatic activity in response to cellular signals

The three-dimensional structure of USP24 has been predicted through homology modeling, revealing a conserved catalytic core similar to other USP family members, with extended N-terminal regulatory regions that likely confer substrate specificity [@avraham2015].

Normal Function

USP24 is a member of the ubiquitin-specific protease (USP) subfamily of deubiquitinating enzymes that catalyze the removal of ubiquitin from substrate proteins. This reversible modification regulates numerous cellular processes:

Protein Quality Control

Removes ubiquitin chains from misfolded or damaged proteins [@liu2019]
Prevents proteasomal degradation of specific substrates
Acts as a molecular chaperone in protein folding pathways

Signaling Pathway Regulation

Modulates [NF-κB](/entities/nf-kb) signaling by deubiquitinating TRAF6 and IKK components [@mahajan2017]
Regulates p53 stability and transcriptional activity [@zhang2017]
Controls Wnt/β-catenin signaling through β-catenin deubiquitination

DNA Damage Response

Participates in the DNA damage checkpoint through regulation of CHK2 and p53 [@zhang2020]
Maintains genomic stability by stabilizing repair proteins
Regulates ATM/ATR signaling pathways

Autophagy Regulation

Modulates [autophagy](/entities/autophagy) through deubiquitination of autophagy receptors [@liu2021]
Controls selective clearance of protein aggregates
Regulates mitophagy in neuronal cells

Role in Disease

Parkinson's Disease

USP24 has been identified as a risk gene for Parkinson's disease (PD) through genome-wide association studies (GWAS) [@chang2017][@blauwendraat2019]. The chromosome 9p13.3 locus containing USP24 shows consistent association with sporadic PD risk across multiple ethnic populations. The mechanism likely involves:

Dysregulation of protein clearance pathways essential for dopaminergic neuron survival
Impaired mitophagy leading to accumulation of damaged mitochondria [@scarffe2014]
Altered [α-synuclein](/proteins/alpha-synuclein) processing and aggregation dynamics [@spillantini1997]

A meta-analysis of over 13,000 PD cases and controls confirmed the association, with an odds ratio of approximately 1.12 for the risk allele [@foo2020].

Alzheimer's Disease

Emerging evidence suggests a role for USP24 in Alzheimer's disease (AD) pathogenesis:

[Amyloid-beta](/proteins/amyloid-beta) treatment of [neurons](/entities/neurons) induces USP24 expression [@zhao2018]
USP24 regulates [APP](/entities/app-protein) processing through modulation of ubiquitin-dependent trafficking [@zhang2019]
Genetic variants in USP24 show nominal association with AD risk in some cohorts [@jun2012]
The enzyme may influence [tau](/proteins/tau) phosphorylation through regulation of [ubiquitin-proteasome system](/cell-types/ubiquitin-proteasome-system) components

Amyotrophic Lateral Sclerosis (ALS)

USP24 variants have been implicated in ALS susceptibility:

GWAS studies have identified the 9p13.3 locus as a risk factor for ALS [@benyamin2017]
USP24 may regulate SOD1 aggregation and clearance [@lillo2016]
Altered autophagy regulation could contribute to motor neuron degeneration

Cancer

While not the focus of this wiki, USP24 is frequently amplified in various cancers and may stabilize oncogenic proteins [@wu2016][@zhang2016]. This dual role in cancer and neurodegeneration highlights the importance of precise regulation of deubiquitinating enzymes.

Therapeutic Targeting

USP24 represents a potential therapeutic target for neurodegenerative diseases:

Small Molecule Inhibitors

USP24 inhibitors have been developed primarily for cancer applications [@wang2021]
Selective inhibitors for neurological applications are under development
Structure-activity relationship studies are ongoing to improve specificity

Modulation Strategies

Enhancing USP24 activity could improve protein clearance in neurodegeneration
Allosteric modulators may provide more selective regulation
Gene therapy approaches to modulate USP24 expression are being explored

Biomarker Potential

USP24 expression levels may serve as a biomarker for disease progression
Genetic variants could predict treatment response
Cerebrospinal fluid USP24 levels are under investigation as a diagnostic tool

Background

The study of Usp24 Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.

Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.

External Links

[UniProt: USP24](https://www.uniprot.org/uniprot/Q9Y5K7)
[PDB: USP24](https://www.ebi.ac.uk/pdbe/search?q=USP24)
[NCBI Gene: USP24](https://www.ncbi.nlm.nih.gov/gene/9712)
[COSMIC: USP24 in Cancer](https://cancer.sanger.ac.uk/cosmic/gene/overview?ln=USP24)

References

[Unknown, UniProt Consortium. (2024). UniProt: the universal protein knowledgebase (2024)](https://pubmed.ncbi.nlm.nih.gov/38035336/)

[Nalls MA, et al, (2014) (2014)](https://pubmed.ncbi.nlm.nih.gov/25064009/)

[Komander D, et al, (2009) (2009)](https://pubmed.ncbi.nlm.nih.gov/19666045/)

[Koulich E, et al, (2008) (2008)](https://pubmed.ncbi.nlm.nih.gov/19032069/)

[Avraham E, et al, (2015) (2015)](https://pubmed.ncbi.nlm.nih.gov/25643546/)

[Liu X, et al, (2019) (2019)](https://pubmed.ncbi.nlm.nih.gov/30770847/)

[Mahajan R, et al, (2017) (2017)](https://pubmed.ncbi.nlm.nih.gov/28373361/)

[Zhang L, et al, (2017) (2017)](https://pubmed.ncbi.nlm.nih.gov/28881718/)

[Zhang Y, et al, (2020) (2020)](https://pubmed.ncbi.nlm.nih.gov/32402278/)

[Liu X, et al, (2021) (2021)](https://pubmed.ncbi.nlm.nih.gov/33491543/)

[Chang D, et al, (2017) (2017)](https://pubmed.ncbi.nlm.nih.gov/28892059/)

[Blauwendraat C, et al, (2019) (2019)](https://pubmed.ncbi.nlm.nih.gov/30617256/)

[Scarffe LA, et al, (2014) (2014)](https://pubmed.ncbi.nlm.nih.gov/24012050/)

[Spillantini MG, et al, (1997) (1997)](https://pubmed.ncbi.nlm.nih.gov/9278044/)

[Foo JN, et al, (2020) (2020)](https://pubmed.ncbi.nlm.nih.gov/32518235/)

[Zhao Y, et al, (2018) (2018)](https://pubmed.ncbi.nlm.nih.gov/29475951/)

[Zhang M, et al, (2019) (2019)](https://pubmed.ncbi.nlm.nih.gov/30478831/)

[Jun G, et al, (2012) (2012)](https://pubmed.ncbi.nlm.nih.gov/22490331/)

[Benyamin B, et al, (2017) (2017)](https://pubmed.ncbi.nlm.nih.gov/28341643/)

[Lillo P, et al, (2016).ALS and FTD: the therapeutic angle (2016)](https://pubmed.ncbi.nlm.nih.gov/26963407/)

[Wu Q, et al, (2016) (2016)](https://pubmed.ncbi.nlm.nih.gov/27223067/)

[Zhang L, et al, (2016) (2016)](https://pubmed.ncbi.nlm.nih.gov/27197195/)

[Wang Y, et al, (2021) (2021)](https://pubmed.ncbi.nlm.nih.gov/34313118/)

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USP24 Protein

USP24 Protein

Overview

USP24 Protein

Introduction

USP24 Protein

Overview

USP24 Protein

Introduction

Structure

Normal Function

Protein Quality Control

Signaling Pathway Regulation

DNA Damage Response

Autophagy Regulation

Role in Disease

Parkinson's Disease

Alzheimer's Disease

Amyotrophic Lateral Sclerosis (ALS)

Cancer

Therapeutic Targeting

Small Molecule Inhibitors

Modulation Strategies

Biomarker Potential

Background

See Also

External Links

References