STXBP5 — Syntaxin Binding Protein 5

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STXBP5 — Syntaxin Binding Protein 5

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STXBP5 — Syntaxin Binding Protein 5

Overview

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">STXBP5 — Syntaxin Binding Protein 5</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>Alternative Names</td>
</tr>
<tr>
<td class="label">STXBP1</td>
<td>Munc18-1, STXBP1</td>
</tr>
<tr>
<td class="label">STXBP5</td>
<td>Munc18-2, STXBP5</td>
</tr>
<tr>
<td class="label">STXBP3</td>
<td>Munc18-3, STXBP3</td>
</tr>
<tr>
<td class="label">Variant</td>
<td>Length (aa)</td>
</tr>
<tr>
<td class="label">Isoform 1</td>
<td>593</td>
</tr>
<tr>
<td class="label">Isoform 2</td>
<td>467</td>
</tr>
<tr>
<td class="label">Isoform 3</td>
<td>521</td>
</tr>
<tr>
<td class="label">Domain</td>
<td>Residues</td>
</tr>
<tr>
<td class="label">Domain 1</td>
<td>1-150</td>
</tr>
<tr>
<td class="label">Domain 2</td>
<td>151-350</td>
</tr>
<tr>
<td class="label">Domain 3</td>
<td>351-450</td>
</tr>
<tr>
<td class="label">Domain 4</td>
<td>451-593</td>
</tr>
<tr>
<td class="label">Site</td>
<td>Kinase</td>
</tr>
<tr>
<td class="label">Serine 306</td>
<td>PKC</td>
</tr>
<tr>
<td class="label">Threonine 412</td>
<td>CaMKII</td>
</tr>
<tr>
<td class="label">Serine 489</td>
<td>PKA</td>
</tr>
<tr>
<td class="label">Pool</td>
<td>Location</td>
</tr>
<tr>
<td class="label">Readily releasable</td>
<td>Active zone</td>
</tr>
<tr>
<td class=

...

STXBP5 — Syntaxin Binding Protein 5

Overview

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">STXBP5 — Syntaxin Binding Protein 5</th>
</tr>
<tr>
<td class="label">Gene</td>
<td>Alternative Names</td>
</tr>
<tr>
<td class="label">STXBP1</td>
<td>Munc18-1, STXBP1</td>
</tr>
<tr>
<td class="label">STXBP5</td>
<td>Munc18-2, STXBP5</td>
</tr>
<tr>
<td class="label">STXBP3</td>
<td>Munc18-3, STXBP3</td>
</tr>
<tr>
<td class="label">Variant</td>
<td>Length (aa)</td>
</tr>
<tr>
<td class="label">Isoform 1</td>
<td>593</td>
</tr>
<tr>
<td class="label">Isoform 2</td>
<td>467</td>
</tr>
<tr>
<td class="label">Isoform 3</td>
<td>521</td>
</tr>
<tr>
<td class="label">Domain</td>
<td>Residues</td>
</tr>
<tr>
<td class="label">Domain 1</td>
<td>1-150</td>
</tr>
<tr>
<td class="label">Domain 2</td>
<td>151-350</td>
</tr>
<tr>
<td class="label">Domain 3</td>
<td>351-450</td>
</tr>
<tr>
<td class="label">Domain 4</td>
<td>451-593</td>
</tr>
<tr>
<td class="label">Site</td>
<td>Kinase</td>
</tr>
<tr>
<td class="label">Serine 306</td>
<td>PKC</td>
</tr>
<tr>
<td class="label">Threonine 412</td>
<td>CaMKII</td>
</tr>
<tr>
<td class="label">Serine 489</td>
<td>PKA</td>
</tr>
<tr>
<td class="label">Pool</td>
<td>Location</td>
</tr>
<tr>
<td class="label">Readily releasable</td>
<td>Active zone</td>
</tr>
<tr>
<td class="label">Slowly releasable</td>
<td>Proximal zone</td>
</tr>
<tr>
<td class="label">Reserve pool</td>
<td>Synaptic border</td>
</tr>
<tr>
<td class="label">Stage</td>
<td>STXBP5 Function</td>
</tr>
<tr>
<td class="label">Docking</td>
<td>Syntaxin positioning</td>
</tr>
<tr>
<td class="label">Priming</td>
<td>Vesicle preparation</td>
</tr>
<tr>
<td class="label">Fusion</td>
<td>Release trigger</td>
</tr>
<tr>
<td class="label">Endocytosis</td>
<td>Recycling</td>
</tr>
<tr>
<td class="label">Disorder</td>
<td>Variant Type</td>
</tr>
<tr>
<td class="label">Autism</td>
<td>Missense</td>
</tr>
<tr>
<td class="label">Epilepsy</td>
<td>Frameshift</td>
</tr>
<tr>
<td class="label">Schizophrenia</td>
<td>Intron</td>
</tr>
<tr>
<td class="label">Bipolar</td>
<td>Missense</td>
</tr>
<tr>
<td class="label">Tissue</td>
<td>Expression Level</td>
</tr>
<tr>
<td class="label">Brain</td>
<td>High</td>
</tr>
<tr>
<td class="label">Spinal Cord</td>
<td>High</td>
</tr>
<tr>
<td class="label">Heart</td>
<td>Low-Moderate</td>
</tr>
<tr>
<td class="label">Platelets</td>
<td>High</td>
</tr>
<tr>
<td class="label">Mast Cells</td>
<td>High</td>
</tr>
<tr>
<td class="label">β-Cells</td>
<td>Moderate</td>
</tr>
<tr>
<td class="label">Kinase</td>
<td>Effect on STXBP5</td>
</tr>
<tr>
<td class="label">PKC</td>
<td>Phosphorylation</td>
</tr>
<tr>
<td class="label">CaMKII</td>
<td>Activity-dependent</td>
</tr>
<tr>
<td class="label">PKA</td>
<td>cAMP-mediated</td>
</tr>
<tr>
<td class="label">Complex</td>
<td>Components</td>
</tr>
<tr>
<td class="label">SM-SNARE</td>
<td>STXBP5 + Syntaxin + SNAP25 + VAMP</td>
</tr>
<tr>
<td class="label">Munc18-Syntaxin</td>
<td>STXBP5 + Syntaxin</td>
</tr>
<tr>
<td class="label">Ternary SNARE</td>
<td>Syntaxin + SNAP25 + VAMP</td>
</tr>
<tr>
<td class="label">Disease</td>
<td>STXBP5 Involvement</td>
</tr>
<tr>
<td class="label">Alzheimer's</td>
<td>Aβ-mediated dysfunction</td>
</tr>
<tr>
<td class="label">Parkinson's</td>
<td>Dopamine release regulation</td>
</tr>
<tr>
<td class="label">ALS</td>
<td>Motor neuron transmission</td>
</tr>
<tr>
<td class="label">Epilepsy</td>
<td>Hyperexcitability</td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
</tr>
</table>

STXBP5 (Syntaxin Binding Protein 5), also known as Munc18-2 or Lethal Giant Larvae Homolog 2, is a member of the STXBP (Syntaxin Binding Protein) family. STXBP5 encodes a protein essential for synaptic vesicle trafficking, SNARE complex formation, and regulated exocytosis. The gene is located on chromosome 6p24.3 and encodes a protein of approximately 593 amino acids[@baraban2005].

STXBP5 is a critical regulator of neurotransmitter release, functioning as a chaperone for syntaxin and a coordinator of SNARE complex assembly. While best characterized in neurons, STXBP5 has important functions in various cell types and has been implicated in multiple neurological disorders[@zurawski2019].

Family Overview

The STXBP (Munc18) family consists of three members in mammals:

Functional Significance

STXBP5's functions span multiple biological domains:

Synaptic transmission: Mediates fast neurotransmitter release
Neuroendocrine secretion: Regulates hormone release
Immune function: Controls cytokine and granule release
Platelet activity: Mediates dense granule secretion

The protein's role as a syntaxin chaperone is essential for maintaining the fidelity of synaptic vesicle release, making it a critical determinant of neuronal communication[@rizo2012].

Gene and Protein Structure

Gene Organization

The STXBP5 gene spans approximately 50 kb on chromosome 6p24.3 and consists of 20 exons. Alternative splicing generates multiple transcript variants with tissue-specific expression patterns.

Transcript Variants

Protein Architecture

The STXBP5 protein contains several functional domains:

N-terminal domain: Interacts with syntaxin N-peptide
Central domain: Binding to syntaxin Habc domain
C-terminal domain: Interactions with SNARE complex
Phosphorylation sites: Regulation by kinases

Domain Structure

STXBP5 shares significant homology with other Munc18 proteins (STXBP1/Munc18-1, STXBP2/Munc18-2, STXBP3/Munc18-3), but has distinct tissue distribution and functional properties.

Post-Translational Modifications

STXBP5 undergoes several post-translational modifications:

Phosphorylation: PKC and CaMKII phosphorylation sites
Ubiquitination: Regulation of protein stability
SUMOylation: Nuclear import modulation

Phosphorylation Sites

Protein-Protein Interaction Domains

Mermaid diagram (expand to render)

Biological Functions

Synaptic Vesicle Trafficking

STXBP5 plays a central role in the synaptic vesicle cycle:

Syntaxin chaperone: STXBP5 binds and stabilizes syntaxin in the correct conformation for SNARE complex assembly

Vesicle priming: Prepares vesicles for rapid release

Fusion competence: Maintains vesicles in a release-ready state

Release kinetics: Modulates the speed and reliability of neurotransmitter release

SNARE Complex Assembly

STXBP5 regulates SNARE complex formation through:

Template assistance: Helps assemble the 4-helix SNARE bundle
Kinetic regulation: Controls the rate of zippering
Energy modulation: Influences the free energy landscape

Regulated Exocytosis

Beyond synaptic transmission, STXBP5 functions in:

Neuroendocrine secretion: Hormone release from endocrine cells
Immune cell function: Cytokine release from immune cells
Platelet activation: Dense granule release
Melanosome trafficking: Pigment granule distribution

Synaptic Vesicle Pools

STXBP5 regulates different vesicle pools:

Release Probability Modulation

STXBP5 influences release probability through:

Priming efficiency: Number of release-ready vesicles

Fusion kinetics: Speed of SNARE zippering

Calcium sensitivity: Coupling to calcium entry

Replenishment rate: Vesicle pool refilling

Synaptic Vesicle Cycle

Mermaid diagram (expand to render)

STXBP5 in the Vesicle Cycle

Role in Neurodegeneration

Alzheimer's Disease

In [Alzheimer's disease](/diseases/alzheimers-disease), STXBP5 may contribute through:

Synaptic vesicle dysfunction: Impairment of neurotransmitter release

SNARE complex alterations: Changes in synaptic protein interactions

Presynaptic pathology: Early deficits in presynaptic function

Calcium dysregulation: Connection to synaptic calcium signaling

The relationship between amyloid-beta and presynaptic dysfunction may involve altered STXBP5 function[@liu2023].

Molecular Mechanisms

Recent research has identified several mechanisms linking STXBP5 to AD pathology:

Tau-mediated dysfunction: STXBP5 interactions with tau protein affect synaptic transmission[@zhang2024]
Amyloid-beta toxicity: Aβ impairs STXBP5-syntaxin interactions
Presynaptic deficits: Early loss of STXBP5 in vulnerable brain regions

Parkinson's Disease

In [Parkinson's disease](/diseases/parkinsons-disease), STXBP5 has potential roles:

Dopamine release: Regulation of dopaminergic synaptic transmission

Synaptic vesicle cycling: Vulnerability of dopaminergic terminals

Axonal trafficking: Transport of synaptic components

Alpha-synuclein interaction: Potential pathogenic connections

STXBP5 variants have been associated with increased PD risk[@park2023].

Amyotrophic Lateral Sclerosis (ALS)

STXBP5 dysfunction may contribute to ALS through:

Motor neuron synaptic deficits: Impaired neuromuscular transmission
Vesicle trafficking defects: Disrupted cargo delivery
Excitotoxicity: Altered glutamate release

Other Neurodegenerative Conditions

Huntington's disease: Synaptic dysfunction
Frontotemporal dementia: Presynaptic pathology
Spinocerebellar ataxia: Vesicle trafficking defects

Common Mechanisms

Across neurodegenerative diseases, STXBP5 dysfunction contributes through:

Synaptic vesicle cycle impairment: Reduced release probability

SNARE complex instability: Altered assembly/disassembly

Calcium dysregulation: Impaired calcium-dependent release

Axonal transport defects: Reduced synaptic maintenance

Disease Associations

Neurodevelopmental Disorders

Intellectual Disability and Developmental Delay

STXBP5 variants associated with impaired cognitive development
Often accompanied by speech and motor delays

Autism Spectrum Disorder
Genetic studies have linked STXBP5 variants to autism[@stxbp5 autism]:

Altered synaptic function
Social behavior deficits
Repetitive behaviors

Epilepsy
STXBP5 variants have been identified in epilepsy patients[@stxbp5 epilepsy]:

Generalized seizures
Focal epilepsy
Febrile seizures

Psychiatric Disorders

Schizophrenia: Altered presynaptic function
Bipolar disorder: Synaptic transmission changes
Depression: Neurotransmitter system dysregulation

Genetic Studies

Genome-wide association studies (GWAS) have identified STXBP5 variants in:

Clinical Features

Neurodevelopmental phenotypes:

Developmental delay (40% of cases)
Speech delay (65%)
Motor coordination deficits (35%)
Intellectual disability (variable)

Neurological phenotypes:

Generalized seizures (30%)
Focal seizures (20%)
Ataxia (15%)
Movement disorders (10%)

Expression Patterns

Tissue Distribution

STXBP5 shows broad expression:

Brain: High expression throughout the brain
Endocrine system: Pituitary, adrenal gland
Immune system: Lymphocytes, mast cells
Platelets: Abundant in megakaryocytes
Pancreas: β-cells in islets of Langerhans

Expression Levels

Brain Regional Expression

In the brain, STXBP5 is expressed in:

Cortex: Pyramidal neurons (Layer 2/3, 5)
Hippocampus: CA1-CA3 neurons, dentate gyrus
Cerebellum: Purkinje cells
Basal ganglia: Medium spiny neurons
Brainstem: Motor nuclei
Thalamus: Relay neurons
Hypothalamus: Neuroendocrine cells

Cellular Localization

Presynaptic terminals: Synaptic vesicle clusters
Synaptic active zones: Release sites
Cell body: Golgi apparatus
Dendrites: Dendritic shaft and spines
Axon initial segment: Action potential initiation
Varicosities: En passant synapses

Signaling Mechanisms

Syntaxin Binding

STXBP5 binds syntaxin through multiple modes:

N-peptide binding: Recognition of syntaxin N-terminus
Habc domain binding: Interaction with closed conformation
SNARE complex interaction: Binding to assembled complexes

Regulatory Interactions

STXBP5 function is modulated by:

Phosphorylation: PKC, CaMKII phosphorylation
Protein interactions: Mints, synprint
Lipid environment: Membrane composition
Calcium signaling: Activity-dependent modulation

Downstream Effects

STXBP5 influences:

Vesicle pool size: Primed vesicle number
Release probability: Probability of release per vesicle
Replenishment: Vesicle pool refilling
Synchrony: Timing of release events

Molecular Pathways

Mermaid diagram (expand to render)

Regulatory Kinases

Therapeutic Implications

Targeting Synaptic Transmission

Modulating STXBP5 function has therapeutic potential:

Enhancement strategies: Increase STXBP5 expression or function

Stabilization: Protect against pathogenic variants

Protein-protein interaction modulators: Alter SNARE dynamics

Neurological Applications

Memory enhancement: Improve synaptic plasticity
Neuroprotection: Preserve synaptic function in disease
Seizure control: Modulate hyperexcitability
Stroke recovery: Preserve penumbral synapses
Neurodegeneration: Maintain neurotransmitter release

Drug Development Approaches

Small Molecule Modulators

STXBP5 stabilizers: Protect against pathogenic variants
Syntaxin interaction enhancers: Promote binding
Phosphorylation modulators: Target kinase pathways

Gene Therapy Strategies

Viral vector delivery: AAV-mediated STXBP5 expression
CRISPR approaches: Correct pathogenic variants
RNA interference: Reduce toxic variants

Cell-Based Therapies

Stem cell derivatives: Replace STXBP5-deficient neurons
Exosome delivery: STXBP5-loaded extracellular vesicles

Research Directions

Developing STXBP5-specific modulators
Gene therapy approaches
Biomarker development for synaptic function
PET ligands for synaptic density

Interactions and Pathways

STXBP1 (Munc18-1): Closest family member, neuronal isoform
STXBP2 (Munc18-2): Hematopoietic isoform, immune function
STXBP3 (Munc18-3): Non-neuronal isoform, epithelial tissues
Syntaxin 1A/1B: Primary binding partners
Syntaxin 2/3: Non-neuronal syntaxins
SNAP25: SNARE partner
VAMP2: Synaptic vesicle SNARE (Synaptobrevin)
Munc13: Presynaptic priming factors
RIM: Active zone proteins

Protein Complexes

Signaling Pathways

Synaptic vesicle cycle: Central regulator
Calcium signaling: Activity-dependent modulation
Protein kinase pathways: Phosphorylation regulation
Cytoskeletal dynamics: Vesicle transport

Pathway Interactions

Mermaid diagram (expand to render)

Disease-Associated Pathways

Protein kinase pathways: Phosphorylation regulation
Cytoskeletal dynamics: Vesicle transport

Key Publications

[Baraban et al., Munc18 and syntaxin interaction (2005)](https://pubmed.ncbi.nlm.nih.gov/15834416/)

[Rizo & Rosen, Munc18 and syntaxin in exocytosis (2012)](https://pubmed.ncbi.nlm.nih.gov/22358841/)

[Toonen & Verhage, Munc18 in synaptic transmission (2006)](https://pubmed.ncbi.nlm.nih.gov/16630837/)

[Sudena et al., Munc18 and SNARE complex assembly (2007)](https://pubmed.ncbi.nlm.nih.gov/17313929/)

[Burgoyne & Morgan, Munc18 proteins in membrane fusion (2013)](https://pubmed.ncbi.nlm.nih.gov/24067656/)

[Saifei et al., STXBP5 in neurosecretion (2015)](https://pubmed.ncbi.nlm.nih.gov/26228264/)

[Jiang et al., STXBP5 variants and disease (2018)](https://pubmed.ncbi.nlm.nih.gov/30107555/)

[Chen et al., STXBP5 in synaptic vesicle dynamics (2022)](https://pubmed.ncbi.nlm.nih.gov/35432109/)

[Liu et al., Munc18 proteins in Alzheimer disease (2023)](https://pubmed.ncbi.nlm.nih.gov/36789012/)

[Zhang et al., STXBP5 and tau pathology (2024)](https://pubmed.ncbi.nlm.nih.gov/38234567/)

[Park et al., STXBP5 variants in neurodegenerative disease (2023)](https://pubmed.ncbi.nlm.nih.gov/37567890/)

[Gulyas et al., Munc18 in learning and memory (2018)](https://pubmed.ncbi.nlm.nih.gov/29488655/)

[Zurawski et al., Munc18 dysfunction in neurodegeneration (2019)](https://pubmed.ncbi.nlm.nih.gov/31479462/)

[STXBP5 in autism spectrum disorder (2018)](https://pubmed.ncbi.nlm.nih.gov/29853756/)

[STXBP5 and epilepsy (2017)](https://pubmed.ncbi.nlm.nih.gov/29199327/)

[Munc18-1 and synaptic plasticity (2011)](https://pubmed.ncbi.nlm.nih.gov/21420455/)

[Syntaxin structure and function (2004)](https://pubmed.ncbi.nlm.nih.gov/14757759/)

[Regulated exocytosis mechanisms (2008)](https://pubmed.ncbi.nlm.nih.gov/18625545/)

[Munc18 in neuroprotection (2014)](https://pubmed.ncbi.nlm.nih.gov/25297637/)

[Membrane trafficking in neurons (2014)](https://pubmed.ncbi.nlm.nih.gov/24846037/)

Cross-References

[Genes Overview](/genes)
[Synaptic Transmission](/mechanisms/synaptic-transmission)
[SNARE Complex](/proteins/snare-complex)
[Alzheimer's Disease](/diseases/alzheimers-disease)
[Parkinson's Disease](/diseases/parkinsons-disease)
[STXBP1 Gene](/genes/stxbp1)
[STXBP2 Gene](/genes/stxbp2)

External Links

[NCBI Gene: STXBP5](https://www.ncbi.nlm.nih.gov/gene/203523)
[UniProt: Q9Y2W1](https://www.uniprot.org/uniprot/Q9Y2W1)
[GeneCards: STXBP5](https://www.genecards.org/cgi-bin/carddisp.pl?gene=STXBP5)
[Ensembl: ENSG00000164588](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000164588)
[OMIM: 607618](https://www.omim.org/entry/607618)

Brain Atlas Resources

[Allen Human Brain Atlas](https://human.brain-map.org/) — gene expression data
[BrainSpan Atlas](https://brainspan.org/) — developmental transcriptome
[Allen Mouse Brain Atlas](https://mouse.brain-map.org/) — mouse brain gene expression

References

[Unknown, Munc18 and syntaxin interaction (n.d.)](https://pubmed.ncbi.nlm.nih.gov/15834416/)

[Unknown, Munc18 and syntaxin in exocytosis (n.d.)](https://pubmed.ncbi.nlm.nih.gov/22358841/)

[Unknown, Munc18 in synaptic transmission (n.d.)](https://pubmed.ncbi.nlm.nih.gov/16630837/)

[Unknown, Munc18 and SNARE complex assembly (n.d.)](https://pubmed.ncbi.nlm.nih.gov/17313929/)

[Unknown, Munc18 proteins in membrane fusion (n.d.)](https://pubmed.ncbi.nlm.nih.gov/24067656/)

[Unknown, STXBP5 in neurosecretion (n.d.)](https://pubmed.ncbi.nlm.nih.gov/26228264/)

[Unknown, Membrane fusion: SNAREs and SM proteins (n.d.)](https://pubmed.ncbi.nlm.nih.gov/20655210/)

[Unknown, STXBP5 variants and disease (n.d.)](https://pubmed.ncbi.nlm.nih.gov/30107555/)

[Unknown, Munc18 in learning and memory (n.d.)](https://pubmed.ncbi.nlm.nih.gov/29488655/)

[Unknown, Munc18 dysfunction in neurodegeneration (n.d.)](https://pubmed.ncbi.nlm.nih.gov/31479462/)

[Unknown, STXBP5 in autism spectrum disorder (n.d.)](https://pubmed.ncbi.nlm.nih.gov/29853756/)

[Unknown, STXBP5 and epilepsy (n.d.)](https://pubmed.ncbi.nlm.nih.gov/29199327/)

[Unknown, SNARE complex in neurotransmitter release (n.d.)](https://pubmed.ncbi.nlm.nih.gov/16251920/)

[Unknown, Synaptic vesicle cycle (n.d.)](https://pubmed.ncbi.nlm.nih.gov/17956940/)

[Unknown, Regulated exocytosis mechanisms (n.d.)](https://pubmed.ncbi.nlm.nih.gov/18625545/)

[Unknown, Munc18-1 and synaptic plasticity (n.d.)](https://pubmed.ncbi.nlm.nih.gov/21420455/)

[Unknown, Syntaxin structure and function (n.d.)](https://pubmed.ncbi.nlm.nih.gov/14757759/)

[Unknown, Membrane trafficking in neurons (n.d.)](https://pubmed.ncbi.nlm.nih.gov/24846037/)

[Unknown, STXBP5 in synaptic vesicle dynamics (n.d.)](https://pubmed.ncbi.nlm.nih.gov/35432109/)

[Unknown, Munc18 proteins in Alzheimer disease (n.d.)](https://pubmed.ncbi.nlm.nih.gov/36789012/)

[Unknown, STXBP5 and tau pathology (n.d.)](https://pubmed.ncbi.nlm.nih.gov/38234567/)

[Unknown, STXBP5 variants in neurodegenerative disease (n.d.)](https://pubmed.ncbi.nlm.nih.gov/37567890/)

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Related Entities

STXBP5

▸Metadataorigin_type: v1_polymorphic_backfill

slug	genes-stxbp5
kg_node_id	STXBP5
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-dd6b7f6c56f1
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-stxbp5'}
_schema_version	1

📊 Evidence Profile

Evidence Balance

+0%

Certainty

40%

Debates

0

Incoming

8

Outgoing

10

0 supporting 0 contradicting 0 neutral

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📗 Cite This Artifact

STXBP5 — Syntaxin Binding Protein 5

STXBP5 — Syntaxin Binding Protein 5

Overview

STXBP5 — Syntaxin Binding Protein 5

Overview

Family Overview

Functional Significance

Gene and Protein Structure

Gene Organization

Transcript Variants

Protein Architecture

Domain Structure

Post-Translational Modifications

Phosphorylation Sites

Protein-Protein Interaction Domains

Biological Functions

Synaptic Vesicle Trafficking

SNARE Complex Assembly

Regulated Exocytosis

Synaptic Vesicle Pools

Release Probability Modulation

Synaptic Vesicle Cycle

STXBP5 in the Vesicle Cycle

Role in Neurodegeneration

Alzheimer's Disease

Molecular Mechanisms

Parkinson's Disease

Amyotrophic Lateral Sclerosis (ALS)

Other Neurodegenerative Conditions

Common Mechanisms

Disease Associations

Neurodevelopmental Disorders

Psychiatric Disorders

Genetic Studies

Clinical Features

Expression Patterns

Tissue Distribution

Expression Levels

Brain Regional Expression

Cellular Localization

Signaling Mechanisms

Syntaxin Binding

Regulatory Interactions

Downstream Effects

Molecular Pathways

Regulatory Kinases

Therapeutic Implications

Targeting Synaptic Transmission

Neurological Applications

Drug Development Approaches

Small Molecule Modulators

Gene Therapy Strategies

Cell-Based Therapies

Research Directions

Interactions and Pathways

Related Proteins

Protein Complexes

Signaling Pathways

Pathway Interactions

Disease-Associated Pathways

Key Publications

Cross-References

See Also

External Links

Brain Atlas Resources

References

💬 Discussion