CREB Protein

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CREB Protein

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CREB Protein

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">CREB Protein — cAMP Response Element-Binding Protein</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>[CREB1](/genes/creb1)</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/P16220" target="_blank">P16220</a></td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>37 kDa</td>
</tr>
<tr>
<td class="label">Subcellular Localization</td>
<td>Nucleus (transcription factor)</td>
</tr>
<tr>
<td class="label">Protein Family</td>
<td>bZIP transcription factor family (CREB/ATF)</td>
</tr>
<tr>
<td class="label">PDB Structures</td>
<td>1CX0, 1R5N, 1TGO</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">ALS</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">ALZHEIMER</a>, <a href="/wiki/alzheimer's-disease" style="color:#ef9a9a">ALZHEIMER'S DISEASE</a>, <a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">749 edges</a></td>
</tr>
</table>

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Creb 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.

Overview

...

CREB Protein

<table class="infobox infobox-protein">
<tr>
<th class="infobox-header" colspan="2">CREB Protein — cAMP Response Element-Binding Protein</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>[CREB1](/genes/creb1)</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/P16220" target="_blank">P16220</a></td>
</tr>
<tr>
<td class="label">Molecular Weight</td>
<td>37 kDa</td>
</tr>
<tr>
<td class="label">Subcellular Localization</td>
<td>Nucleus (transcription factor)</td>
</tr>
<tr>
<td class="label">Protein Family</td>
<td>bZIP transcription factor family (CREB/ATF)</td>
</tr>
<tr>
<td class="label">PDB Structures</td>
<td>1CX0, 1R5N, 1TGO</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td><a href="/wiki/als" style="color:#ef9a9a">ALS</a>, <a href="/wiki/alzheimer" style="color:#ef9a9a">ALZHEIMER</a>, <a href="/wiki/alzheimer's-disease" style="color:#ef9a9a">ALZHEIMER'S DISEASE</a>, <a href="/wiki/aging" style="color:#ef9a9a">Aging</a>, <a href="/wiki/als" style="color:#ef9a9a">Als</a></td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">749 edges</a></td>
</tr>
</table>

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Creb 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.

Overview

CREB (cAMP Response Element-Binding Protein) is a transcription factor that plays central roles in neuronal plasticity, memory formation, and cell survival. It belongs to the bZIP family of transcription factors and is activated by phosphorylation in response to various cellular signals including cAMP, calcium, and growth factors[@lonze2002]. CREB dysfunction has been implicated in neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and Huntington's disease.

Structure

CREB is a 341-amino acid transcription factor with distinct functional domains:

N-terminal transcription activation domain (TAD): Contains multiple activation units (Q1, Q2, KID) and is regulated by phosphorylation
Kinase-inducible domain (KID): Contains serine-133, the primary site for phosphorylation-dependent activation
Basic region: DNA-binding domain that recognizes CRE (cAMP response element) sequences
Leucine zipper (bZIP): Dimerization domain that allows CREB to form homodimers or heterodimers with other ATF/CREB proteins

CREB functions as a homodimer or heterodimer with ATF1 and CREM, binding to CRE sequences (TGACGTCA) in target gene promoters.

Normal Function in the Nervous System

Gene Transcription Regulation

CREB regulates expression of genes critical for neuronal function:

Immediate-early genes: c-Fos, Egr-1, Arc
Neurotrophic factors: BDNF, NGF
Anti-apoptotic proteins: Bcl-2, Mcl-1
Synaptic proteins: Synapsin, Synaptophysin

Neuronal Plasticity and Memory

CREB is essential for memory formation and synaptic plasticity:

[Long-term potentiation](/mechanisms/long-term-potentiation) (LTP): CREB activity is required for late-phase LTP
Long-term memory: CREB-mediated transcription is necessary for long-term memory consolidation
Neuronal differentiation: CREB regulates genes involved in neuronal development

Cell Survival

CREB promotes neuronal survival through:

Anti-apoptotic gene expression: Bcl-2, Bcl-xL
Metabolic regulation: Glucose transporters, mitochondrial proteins
Growth factor signaling: BDNF, IGF-1

Role in Disease

Alzheimer's Disease

In AD:

Memory impairment: CREB-mediated transcription is reduced in AD [hippocampus](/brain-regions/hippocampus)
[Amyloid-beta](/proteins/amyloid-beta) toxicity: Abeta inhibits CREB phosphorylation and activation
[Tau](/proteins/tau) pathology: Hyperphosphorylated tau interferes with CREB function
Synaptic loss: Reduced CREB activity contributes to synaptic dysfunction

Parkinson's Disease

In PD:

Dopaminergic neuron survival: CREB activity supports dopaminergic neuron survival
[alpha-Synuclein](/proteins/alpha-synuclein) toxicity: alpha-Synuclein oligomers impair CREB function
Therapeutic potential: CREB-activating strategies may protect dopaminergic [neurons](/entities/neurons)

Huntington's Disease

In HD:

Transcriptional dysregulation: Mutant [huntingtin](/proteins/huntingtin) impairs CREB function
BDNF expression: Reduced CREB-mediated BDNF transcription contributes to striatal neuron vulnerability
Neuronal dysfunction: CREB dysfunction is an early event in HD pathogenesis

Therapeutic Targeting

CREB Activators

Phosphodiesterase inhibitors: Rolipram and other cAMP-PKA pathway enhancers
cAMP elevators: Forskolin, cAMP analogs
Histone deacetylase (HDAC) inhibitors: Enhance CREB-mediated transcription
Small molecule activators: CREB-specific small molecules in development

Gene Therapy

AAV-CREB: Viral delivery to restore CREB function
BDNF delivery: Indirect CREB activation through BDNF

Background

The study of Creb 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.

Pathway & Interaction Diagram

Interactive diagram showing CREB key relationships in the SciDEX knowledge graph (15 connections shown).

Mermaid diagram (expand to render)

External Links

[UniProt: CREB](https://www.uniprot.org/uniprot/P16220)
[PDB: CREB](https://www.rcsb.org/structure/1CX0)
[NCBI Protein: CREB](https://www.ncbi.nlm.nih.gov/protein/NP_604391)

References

[Lonze BE, Ginty DD, Function and regulation of CREB family transcription factors in the nervous system (2002)](https://pubmed.ncbi.nlm.nih.gov/12194863/)

[Carlezon WA Jr, Duman RS, Nestler EJ, The many faces of CREB (2005)](https://pubmed.ncbi.nlm.nih.gov/15980450/)

[Sakamoto K, Karelina K, Obrietan K, CREB: a multifaceted regulator of neuronal plasticity and protection (2011)](https://pubmed.ncbi.nlm.nih.gov/21083433/)

[Brightwell JJ, Smith CA, Taylor JR, Memory for trace fear conditioning requires de novo protein synthesis (2022)](https://pubmed.ncbi.nlm.nih.gov/35101652/)

From the [SciDEX Exchange](/exchange) — scored by multi-agent debate

[Epigenetic Memory Reprogramming for Alzheimer's Disease](/hypothesis/h-29ef94d5) — <span style="color:#ffd54f;font-weight:600">0.55</span> · Target: BDNF, CREB1, synaptic plasticity genes

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Related Entities

CREBPROTEIN

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slug	proteins-creb-protein
kg_node_id	CREBPROTEIN
entity_type	protein
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-953429892b61
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'proteins-creb-protein'}
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📊 Evidence Profile Foundational

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📗 Cite This Artifact

CREB Protein

CREB Protein

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Overview

CREB Protein

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Overview

Structure

Normal Function in the Nervous System

Gene Transcription Regulation

Neuronal Plasticity and Memory

Cell Survival

Role in Disease

Alzheimer's Disease

Parkinson's Disease

Huntington's Disease

Therapeutic Targeting

CREB Activators

Gene Therapy

Background

Pathway & Interaction Diagram

See Also

External Links

References

💬 Discussion

📗 Cite This Artifact

CREB Protein

CREB Protein

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Overview

CREB Protein

CREB Protein — cAMP Response Element-Binding Protein

Introduction

Overview

Structure

Normal Function in the Nervous System

Gene Transcription Regulation

Neuronal Plasticity and Memory

Cell Survival

Role in Disease

Alzheimer's Disease

Parkinson's Disease

Huntington's Disease

Therapeutic Targeting

CREB Activators

Gene Therapy

Background

Pathway & Interaction Diagram

See Also

External Links

References

Related Hypotheses

💬 Discussion