CREB5 — cAMP Responsive Element Binding Protein 5

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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

Overview

Mermaid diagram (expand to render)

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]

cAMP/PKA pathway — Elevation of intracellular cAMP leads to PKA activation, which phosphorylates CREB5

MAPK/ERK pathway — Growth factor signaling through MAPK pathways can activate CREB5

Ca²⁺/CaM pathways — Calcium-dependent signaling can influence CREB5 phosphorylation status

PI3K/Akt pathway — Akt-mediated phosphorylation can regulate CREB5 activity

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

The hippocampus, a brain region critical for memory formation, shows particularly significant CREB dysregulation in AD. Research has demonstrated that restoring CREB function may have therapeutic potential in AD treatment [9](https://www.nature.com/articles/nrn1887).

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

Research indicates that CREB5 activation may represent a therapeutic strategy for PD, as it can promote the expression of neurotrophic factors and anti-oxidant genes [10](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3776691/).

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

The striatum, which is particularly affected in HD, shows significant CREB5 dysregulation. Research suggests that CREB5-dependent transcriptional programs are essential for medium spiny neuron survival [11](https://www.nature.com/articles/nrn2100).

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:

Small molecule activators — Compounds that enhance CREB5 transcriptional activity

Gene therapy — Viral vector-mediated CREB5 delivery

Phosphodiesterase inhibitors — Drugs that increase cAMP levels and enhance CREB5 activity

Neurotrophic factor induction — Agents that stimulate CREB5-dependent expression of protective factors

Biomarker Potential

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

Disease progression
Treatment response
Neurodegenerative disease diagnosis

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.

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

Unknown, NCBI Gene. CREB5 (cAMP Responsive Element Binding Protein 5). Gene ID: 9586 (n.d.)

Lonze BE, Ginty DD, Function and regulation of CREB family transcription factors in the nervous system (2002)

Hai TW, Liu F, Coukos WJ, Green MR, Alternative splicing, RNA editing, and the diverse regulatory roles of CREB (n.d.)

Goldman PS, Tran TK, Goodman RH, The multifunctional role of CREB in neuronal signaling (n.d.)

Mayr B, Montminy MR, Transcriptional regulation by the phosphorylation-dependent factor CREB (n.d.)

Abel T, Zukin RS, Sleep, plasticity and memory from molecules to whole-brain networks (n.d.)

Saura CA, Valero J, The role of CREB signaling in Alzheimer's disease (n.d.)

Kandel ER, The molecular biology of memory: cAMP, PKA, CRE, CREB-1, CREB-2, and CPEB (n.d.)

Park J, Oh MS, CREB-mediated dopaminergic neuroprotection (n.d.)

Cha JH, Transcriptional dysregulation in Huntington's disease (n.d.)

Unknown, UniProt. CREB5 - cAMP Responsive Element Binding Protein 5. Entry Q8TD36 (n.d.)

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 |

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CREB5 — cAMP Responsive Element Binding Protein 5

CREB5 — cAMP Responsive Element Binding Protein 5

Introduction

Overview

CREB5 — cAMP Responsive Element Binding Protein 5

Introduction

Overview

Function

Transcription Factor Activity

Role in Neuronal Systems

Signaling Pathways

Role in Neurodegenerative Diseases

Alzheimer's Disease

Parkinson's Disease

Huntington's Disease

Genetic Information

Gene Structure

Protein Domains

Polymorphisms and Genetic Variants

Research Implications

Therapeutic Targets

Biomarker Potential

Related Conditions and Proteins

Summary

See Also

External Links

Background

References

Disease Associations