CREB5 — cAMP Responsive Element Binding Protein 5

CREB5 — cAMP Responsive Element Binding Protein 5

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">CREB5 — cAMP Responsive Element Binding Protein 5</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>CREB5</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>CREB5 — cAMP Responsive Element Binding Protein 5</td>
</tr>
<tr>
<td class="label">Type</td>
<td>Gene</td>
</tr>
<tr>
<td class="label">NCBI</td>
<td><a href="https://www.ncbi.nlm.nih.gov/gene/?term=CREB5" target="_blank">Search NCBI</a></td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/common-diseases" style="color:#ef9a9a">Common Diseases</a>, <a href="/wiki/complex-human-diseases" style="color:#ef9a9a">Complex Human Diseases</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">15 edges</a></td>
</tr>
</table>

Creb5 — Camp Responsive Element Binding Protein 5 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes. [@ncbi]

Overview

CREB5 — cAMP Responsive Element Binding Protein 5

Introduction

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">CREB5 — cAMP Responsive Element Binding Protein 5</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>CREB5</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>CREB5 — cAMP Responsive Element Binding Protein 5</td>
</tr>
<tr>
<td class="label">Type</td>
<td>Gene</td>
</tr>
<tr>
<td class="label">NCBI</td>
<td><a href="https://www.ncbi.nlm.nih.gov/gene/?term=CREB5" target="_blank">Search NCBI</a></td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">Als</a>, <a href="/wiki/common-diseases" style="color:#ef9a9a">Common Diseases</a>, <a href="/wiki/complex-human-diseases" style="color:#ef9a9a">Complex Human Diseases</a>, <a href="/wiki/ms" style="color:#ef9a9a">Ms</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">15 edges</a></td>
</tr>
</table>

Creb5 — Camp Responsive Element Binding Protein 5 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes. [@ncbi]

Overview

CREB5 encodes a member of the CREB (cAMP response element-binding) family of transcription factors. CREB5 is located on chromosome 7p15.1 and is expressed in brain regions involved in learning and memory. The gene is catalogued as NCBI Gene ID [9586](https://www.ncbi.nlm.nih.gov/gene/9586) [1](https://www.ncbi.nlm.nih.gov/gene/9586). [@lonze2002]

The CREB family of transcription factors is evolutionarily conserved and plays critical roles in cellular processes including metabolism, development, and neuroplasticity [2](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2643860/). CREB5 represents a distinct member of this family with unique expression patterns and functional characteristics that distinguish it from other CREB family members such as CREB (CREB1), ATF1, and CREM [3](https://www.jbc.org/article/S0021-9258(19)45321-4/fulltext). [@hai]

--- [@goldman]

Function

Transcription Factor Activity

CREB5 is a DNA-binding transcription factor that recognizes CRE (cAMP response element) sequences (TGACGTCA) in the promoter regions of target genes [4](https://www.nature.com/articles/nrn1887). Like other CREB family members, CREB5 contains a basic leucine zipper (bZIP) domain that facilitates DNA binding and protein dimerization [5](https://www.sciencedirect.com/science/article/pii/S0896627308006697). [@mayr]

The transcriptional activity of CREB5 is regulated through multiple mechanisms: [@abel]

• Phosphorylation — CREB5 can be phosphorylated at various residues, affecting its transcriptional activity
• Protein-protein interactions — CREB5 interacts with other transcription factors and coactivators
• Cellular signaling pathways — Multiple signaling cascades converge on CREB5 to modulate its function

Role in Neuronal Systems

CREB5 is expressed in key brain regions associated with neurodegenerative processes, including the [hippocampus](/brain-regions/hippocampus), cerebral [cortex](/brain-regions/cortex), and striatum. These brain regions are critically involved in cognitive function, motor control, and memory formation, making them particularly vulnerable to neurodegenerative processes [6](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655085/). [@saura]

Research has demonstrated that CREB proteins play essential roles in: [@kandel]

• Neuronal survival — CREB-mediated transcription promotes expression of anti-apoptotic genes
• Synaptic plasticity — CREB regulates genes involved in [long-term potentiation](/mechanisms/long-term-potentiation) (LTP) and memory formation
• Metabolic regulation — CREB controls genes involved in glucose metabolism and energy homeostasis
• Gene expression programs — CREB5 activates downstream target genes that influence neuronal health and disease progression

Signaling Pathways

CREB5 activity is modulated by several key signaling pathways: [@park]

These signaling pathways integrate various extracellular and intracellular signals to coordinate appropriate transcriptional responses in [neurons](/entities/neurons) [7](https://www.sciencedirect.com/science/article/pii/S0092867408007935). [@cha]

--- [@uniprot]

Role in Neurodegenerative Diseases

Alzheimer's Disease

CREB5 has been implicated in [Alzheimer's disease](/diseases/alzheimers-disease) (AD) pathogenesis through multiple mechanisms. Research indicates that CREB-mediated transcription is dysregulated in AD, contributing to impaired synaptic plasticity and memory deficits [8](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2655085/). Studies have shown that:

• CREB5 expression and activity are altered in AD brain tissue
• [Amyloid-beta](/proteins/amyloid-beta) (Aβ) oligomers interfere with CREB signaling
• [Tau](/proteins/tau) pathology affects CREB-mediated transcriptional programs
• CREB5 may regulate genes involved in amyloid processing

Parkinson's Disease

In [Parkinson's disease](/diseases/parkinsons-disease) (PD), CREB5 plays a role in protecting dopaminergic neurons from degeneration. Studies have shown that:

• CREB5 activity is reduced in PD brain regions
• CREB-mediated neuroprotection involves anti-apoptotic gene expression
• Dopaminergic neuron survival depends on intact CREB signaling
• CREB5 may regulate genes involved in dopamine metabolism

Huntington's Disease

CREB5 dysfunction is particularly relevant to Huntington's disease (HD), a neurodegenerative disorder caused by mutant [huntingtin protein](/proteins/huntingtin-protein). Studies have revealed:

• Mutant [huntingtin protein](/proteins/huntingtin) interferes with CREB5 transcriptional activity
• CREB5-mediated gene expression is disrupted in HD
• CREB5 dysregulation contributes to transcriptional deficits observed in HD
• Restoring CREB5 function may ameliorate HD pathology

Genetic Information

Gene Structure

The CREB5 gene (ENSG00000101158) is located on chromosome 7p15.1 and encodes a protein of approximately 341 amino acids. The UniProt entry Q8TD36 provides detailed information about the protein structure and functional domains [12](https://www.uniprot.org/uniprot/Q8TD36).

Protein Domains

CREB5 contains several functional domains:

• Basic region — DNA-binding domain
• Leucine zipper dimerization domain — Facilitates protein dimerization
• Transactivation domain — Regulates transcriptional activity
• Kinase-inducible domain (KID) — Site of regulatory phosphorylation

Polymorphisms and Genetic Variants

Genetic variations in CREB5 have been studied in the context of neurodegenerative diseases. Several single nucleotide polymorphisms (SNPs) in the CREB5 gene region have been associated with altered disease risk or progression in various populations.

Research Implications

Therapeutic Targets

CREB5 represents a promising therapeutic target for neurodegenerative diseases. Strategies being explored include:

Biomarker Potential

CREB5 expression levels and phosphorylation status may serve as biomarkers for:

• Disease progression
• Treatment response
• Neurodegenerative disease diagnosis

Related Conditions and Proteins

CREB5 interacts with and is functionally related to several other proteins and pathways:

• [CREB1](/genes/creb1) — Related CREB family member
• [ATF1](/genes/atf1) — Activating transcription factor 1
• [CREM](/genes/crem) — cAMP response element modulator
• [CBP](/genes/cbp) — CREB-binding protein (coactivator)
• [p300](/genes/p300) — Histone acetyltransferase and coactivator
• [BDNF](/proteins/bdnf) — Brain-derived neurotrophic factor
• [cAMP signaling pathway](/mechanisms/camp-signaling)

Summary

CREB5 (cAMP Responsive Element Binding Protein 5) is a transcription factor encoded by the gene located at 7p15.1. It plays critical roles in neuronal function and survival, with particular relevance to neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and Huntington's disease. The protein participates in key signaling pathways that regulate gene expression programs essential for synaptic plasticity, neuronal survival, and metabolic regulation. Understanding CREB5 function and dysfunction in neurodegenerative contexts provides insights into disease mechanisms and potential therapeutic interventions.

See Also

• [CREB Family](/proteins/creb-family)
• [cAMP Signaling](/mechanisms/camp-signaling)
• [Transcription Factors](/entities/transcription-factors)

External Links

• [NCBI Gene: CREB5](https://www.ncbi.nlm.nih.gov/gene/1320)
• [UniProt: CREB5](https://www.uniprot.org/uniprot/Q9Y6X7)

Background

The study of Creb5 — Camp Responsive Element Binding Protein 5 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

Disease Associations

Source: Open Targets Platform (opentargets.org)

| Disease | Association Score | Disease ID |
|--------|-------------------|------------|
| Abnormality of the skeletal system | 0.4993 | HP_0000924 |
| atopic eczema | 0.4634 | EFO_0000274 |
| atrial fibrillation | 0.4609 | EFO_0000275 |
| open-angle glaucoma | 0.4272 | EFO_0004190 |
| osteoarthritis, knee | 0.4113 | EFO_0004616 |