DnaJ Heat Shock Protein Family (Hsp40) Member C7

DnaJ Heat Shock Protein Family (Hsp40) Member C7

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">DnaJ Heat Shock Protein Family (Hsp40) Member C7</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>| [@dnajca]</td>
</tr>
<tr>
<td class="label">Symbol</td>
<td>DNAJC7</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>DnaJ Heat Shock Protein Family (Hsp40) Member C7</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>12q24.31</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>[DNAJC7](https://www.ncbi.nlm.nih.gov/gene/)</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>[Q9H0U4](https://www.uniprot.org/uniprot/Q9H0U4)</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td>[Alzheimer's Disease](/diseases/alzheimers-disease), Amyotrophic Lateral Sclerosis, Huntington's Disease</td>
</tr>
</table>

Dnaj Heat Shock Protein Family (Hsp40) Member C7 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

.infobox .infobox-gene [@hsp]

Overview

DnaJ Heat Shock Protein Family (Hsp40) Member C7

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">DnaJ Heat Shock Protein Family (Hsp40) Member C7</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>| [@dnajca]</td>
</tr>
<tr>
<td class="label">Symbol</td>
<td>DNAJC7</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>DnaJ Heat Shock Protein Family (Hsp40) Member C7</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>12q24.31</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>[DNAJC7](https://www.ncbi.nlm.nih.gov/gene/)</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>[Q9H0U4](https://www.uniprot.org/uniprot/Q9H0U4)</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td>[Alzheimer's Disease](/diseases/alzheimers-disease), Amyotrophic Lateral Sclerosis, Huntington's Disease</td>
</tr>
</table>

Dnaj Heat Shock Protein Family (Hsp40) Member C7 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

.infobox .infobox-gene [@hsp]

Overview

DNAJC7 (DnaJ Heat Shock Protein Family Member C7) is-chaperone protein a co belonging to the Hsp40/DnaJ family, which functions as a co-factor for Hsp70 [heat shock proteins](/entities/heat-shock-proteins). These molecular chaperones play essential roles in protein folding, refolding, assembly, and degradation. DNAJC7 is characterized by the presence of tetratricopeptide repeat (TPR) domains, which facilitate protein-protein interactions with Hsp70 and other chaperones. In the nervous system, DNAJC7 contributes to protein quality control, and genetic variants in DNAJC7 have been associated with increased risk for neurodegenerative diseases including Alzheimer's disease, amyotrophic lateral sclerosis (ALS), and Huntington's disease.

Molecular Mechanism

DNAJC7 functions as a J-domain co-chaperone that stimulates the ATPase activity of Hsp70 proteins, enhancing their client protein folding and processing capabilities.

Domain Structure

DNAJC7 contains several key structural features:

• J domain: The defining feature of Hsp40 proteins, approximately 70 amino acids, which interacts with and activates Hsp70 ATPase activity
• Gly/Phe-rich region: Flexible region potentially involved in substrate binding
• TPR domain: Tetratricopeptide repeat domain that mediates interactions with Hsp90 and other TPR-containing proteins
• C-terminal client-binding region: Variable domain involved in substrate recognition

Chaperone Activity

DNAJC7 participates in multiple chaperone functions:

Client Proteins

DNAJC7 has been implicated in processing various neuronal proteins:

• [Tau](/proteins/tau): Hsp40 co-chaperones can modulate [tau](/proteins/tau) folding and aggregation
• [α-Synuclein](/proteins/alpha-synuclein): DNAJC7 may influence α-syn aggregation in synucleinopathies
• Mutant [huntingtin](/proteins/huntingtin-protein): Potential role in clearing toxic mHTT aggregates
• [TDP-43](/proteins/tdp-43): Implications for ALS pathogenesis

Expression Pattern

DNAJC7 demonstrates widespread expression with particular abundance in neuronal tissues:

• Brain: High expression throughout the central nervous system
• Neuronal subtypes: Detected in pyramidal [neurons](/entities/neurons), interneurons, and glia
• Subcellular localization: Cytosolic with nuclear pore-adjacent localization
• Developmental expression: Present throughout development with increased expression in aging brain

Disease Associations

Alzheimer's Disease

DNAJC7 has been linked to Alzheimer's disease through multiple mechanisms:

Amyotrophic Lateral Sclerosis

In ALS, DNAJC7 may play protective roles:

Huntington's Disease

DNAJC7 implications in Huntington's disease include:

Therapeutic Implications

DNAJC7 represents a potential therapeutic target:

Chaperone-Based Therapies

• Hsp70 activators: Compounds enhancing Hsp70 activity through DNAJC7
• Small molecule co-chaperones: Modulators of DNAJC7 function
• Combination approaches: Synergy with Hsp90 inhibitors or autophagy enhancers

Gene Therapy

• Viral DNAJC7 overexpression: AAV-mediated delivery to enhance chaperone capacity
• CRISPR activation: Upregulating endogenous DNAJC7 expression

Protein-Specific Approaches

• Tau-targeted: Enhancing DNAJC7-mediated tau clearance
• α-synuclein-targeted: Modulating α-syn aggregation through chaperone pathways

Research Directions

Key questions remaining about DNAJC7 include:

Key Publications

Background

The study of Dnaj Heat Shock Protein Family (Hsp40) Member C7 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.

See Also

• [Genes Index](/genes)
• [Alzheimer's Disease](/diseases/alzheimers-disease)
• [Amyotrophic Lateral Sclerosis](/diseases/amyotrophic-lateral-sclerosis)
• [Huntington's Disease](/diseases/huntingtons)
• [Protein Quality Control](/mechanisms/protein-quality-control-network)
• [HSP70 Chaperone Pathway](/genes/th)
• [Tau Pathology Pathway](/mechanisms/tau-pathology)

External Links

• [NCBI Gene: DNAJC7](https://www.ncbi.nlm.nih.gov/gene/)
• [UniProt: Q9H0U4](https://www.uniprot.org/uniprot/Q9H0U4)

References

Pathway Diagram

The following diagram shows the key molecular relationships involving DnaJ Heat Shock Protein Family (Hsp40) Member C7 discovered through SciDEX knowledge graph analysis: