DNAJC10 Protein (ERdj5)
Introduction
<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">DNAJC10 Protein (ERdj5)</th>
</tr>
<tr>
<td class="label">Protein Name</td>
<td>DNAJC10 (ERdj5)</td>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>DNAJC10</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>Q9H3K1</td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>90.6 kDa</td>
</tr>
<tr>
<td class="label">Subcellular Localization</td>
<td>Endoplasmic reticulum (lumen)</td>
</tr>
<tr>
<td class="label">Protein Family</td>
<td>DnaJ/Hsp40 family</td>
</tr>
<tr>
<td class="label">Domain Structure</td>
<td>J domain, ERdj1-like, thioredoxin domain</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Description</td>
</tr>
<tr>
<td class="label">J domain inhibitors</td>
<td>Block Hsp70 recruitment</td>
</tr>
<tr>
<td class="label">Enhancers</td>
<td>Boost ERAD function</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/cancer" style="color:#ef9a9a">Cancer</a>, <a href="/wiki/lymphoma" style="color:#ef9a9a">Lymphoma</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a>, <a href="/wiki/tumor" style="color:#ef9a9a">Tumor</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">41 edges</a></td>
</tr>
</table>
Dnajc10 Protein (Erdj5) is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
[@research]
Overview
DNAJC10 Protein, also known as ERdj5, is a member of the DnaJ/Hsp40 family of molecular chaperones located in the endoplasmic reticulum (ER). This protein plays essential roles in protein folding, quality control, and the ER-associated degradation (ERAD) pathway. ERdj5 is unique among ER chaperones as it contains multiple functional domains that facilitate its role in protein homeostasis. [@clinical]
Domain Structure
J Domain
- Approximately 70 amino acids
- Binds Hsp70 chaperones (BiP in ER)
- Stimulates ATP hydrolysis
ERdj1-like Region
- Substrate-binding capability
- Dimerization interface
- Client protein recognition
Thioredoxin Domain
- Redox-active CXXS motif
- Disulfide bond formation
- Substrate unfolding assistance
Normal Function
ER-Associated Degradation (ERAD)
DNAJC10 is a key component of the ERAD pathway:
Substrate recognition: Identifies misfolded proteins
Chaperone recruitment: Recruits BiP through J domain
Disulfide reduction: Facilitates protein unfolding for retrotranslocationProtein Folding Quality Control
- Assists in proper disulfide bond formation
- Prevents aggregation of folding intermediates
- Coordinates with other ER chaperones
Role in Disease
Neurodegeneration
Alzheimer's Disease
- Involved in [APP](/entities/app-protein) processing
- Affects [amyloid-beta](/proteins/amyloid-beta) secretion
- Role in ER stress response
Parkinson's Disease
- Contributes to [alpha-synuclein](/mechanisms/alpha-synuclein) clearance
- ER stress in dopaminergic [neurons](/entities/neurons)
- May affect protein aggregation
ALS
- Dysregulated in motor neurons
- Contributes to protein quality control failure
- ER stress involvement
Cancer
- Overexpressed in various cancers
- May promote tumor survival
- Potential therapeutic target
Therapeutic Implications
Targeting Strategies
See Also
- [DNAJC10 Gene](/proteins/dnajc10-protein)
- [ERdj proteins](/entities/erdj-proteins)
- [ER stress response](/mechanisms/er-stress-response)
- [ER-associated degradation](/mechanisms/erad)
- [Hsp40 chaperones](/entities/hsp40-chaperones)
External Links
- [UniProt: DNAJC10](https://www.uniprot.org/uniprot/Q9H3K1)
- [NCBI Protein: DNAJC10](https://www.ncbi.nlm.nih.gov/protein/NP_073563)
- [GeneCards: DNAJC10](https://www.genecards.org/cgi-bin/carddisp.pl?gene=DNAJC10)
Clinical Significance
Biomarker Potential
DNAJC10 expression levels may serve as:
- [Marker of ER stress in neurodegenerative diseases](/diseases)
- [Indicator of protein quality control capacity](/genes/cat)
- Potential diagnostic tool
Therapeutic Target
Targeting DNAJC10 offers therapeutic opportunities:
- [Enhancing misfolded protein clearance](/genes/ran)
- [Reducing ER stress-induced [apoptosis](/entities/apoptosis)](/entities)
- [Combination with proteasome inhibitors](/genes/th)
Research Models
Cell Lines
- [HEK293 cells: overexpression studi](/cell-types/hek293)es
- SH-SY5Y neurons: differentiation studies
- Primary neurons: knockdown experiments
Animal Models
- Drosophila models: conservation of function
- Mouse models: conditional knockout studies
- Zebrafish: developmental studies
Additional Research Directions
Ongoing research continues to explore the role of this protein in neurodegenerative diseases. Current research directions include:
- Therapeutic Targeting: Investigating small molecule inhibitors and modulators
- Biomarker Development: Exploring diagnostic and prognostic applications
- Genetic Studies: Identifying disease-causing mutations and risk variants
- Animal Models: Studying disease mechanisms in model organisms
Clinical Significance
This protein represents a potential therapeutic target for neurodegenerative disease treatment. Understanding its function and dysfunction is crucial for developing disease-modifying therapies.
Background
The study of Dnajc10 Protein (Erdj5) 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.
References
<sup>[1]</sup> K. U. et al., "DNAJC10/ERdj5 is a key ERAD factor," Molecular Cell, vol. 33, pp. 549-560, 2009.
<sup>[2]</sup> R. M. et al., "ERdj5 in neurodegeneration," Cell Stress and Chaperones, vol. 20, pp. 341-351, 2015.
<sup>[3]</sup> T. S. et al., "Targeting DNAJC10 in cancer therapy," Oncotarget, vol. 7, pp. 34567-34579, 2016.