RTN1 Gene (Reticulon 1)

Migration, Crosslink

📖

RTN1 Gene (Reticulon 1)

active

wiki page Created: 2026-04-02T07:19:27 By: crosslink-migration Quality: 50% ✓ SciDEX ID: wiki-genes-rtn1

📖 Wiki Page

gene1534 wordssynced 2026-04-02

RTN1 Gene (Reticulon 1)

Overview

...

RTN1 Gene (Reticulon 1)

Overview

Mermaid diagram (expand to render)

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">RTN1 Gene (Reticulon 1)</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>RTN1</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>Reticulon 1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>19q13.32</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>19740</td>
</tr>
<tr>
<td class="label">OMIM</td>
<td>603123</td>
</tr>
<tr>
<td class="label">HGNC ID</td>
<td>HGNC:10056</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000131871</td>
</tr>
<tr>
<td class="label">UniProt</td>
<td>Q86VR8</td>
</tr>
<tr>
<td class="label">RefSeq</td>
<td>NM_203401</td>
</tr>
<tr>
<td class="label">Gene Type</td>
<td>Protein-coding</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td>Amyotrophic Lateral Sclerosis, Alzheimer's Disease, Hereditary Neuropathy</td>
</tr>
<tr>
<td class="label">Isoform</td>
<td>Length</td>
</tr>
<tr>
<td class="label">RTN1-A</td>
<td>299 aa</td>
</tr>
<tr>
<td class="label">RTN1-B</td>
<td>236 aa</td>
</tr>
<tr>
<td class="label">RTN1-C</td>
<td>182 aa</td>
</tr>
<tr>
<td class="label">Region</td>
<td>Expression Level</td>
</tr>
<tr>
<td class="label">Cerebral Cortex</td>
<td>Very High</td>
</tr>
<tr>
<td class="label">Hippocampus</td>
<td>High</td>
</tr>
<tr>
<td class="label">Cerebellum</td>
<td>High</td>
</tr>
<tr>
<td class="label">Basal Ganglia</td>
<td>High</td>
</tr>
<tr>
<td class="label">Spinal Cord</td>
<td>Very High</td>
</tr>
<tr>
<td class="label">Brainstem</td>
<td>High</td>
</tr>
<tr>
<td class="label">Partner</td>
<td>Interaction Type</td>
</tr>
<tr>
<td class="label">RTN3</td>
<td>Heterodimer</td>
</tr>
<tr>
<td class="label">RTN4</td>
<td>Heterodimer</td>
</tr>
<tr>
<td class="label">DP1</td>
<td>Direct binding</td>
</tr>
<tr>
<td class="label">APP</td>
<td>Direct binding</td>
</tr>
<tr>
<td class="label">Syntaxin</td>
<td>Direct binding</td>
</tr>
<tr>
<td class="label">VAMP</td>
<td>Direct binding</td>
</tr>
<tr>
<td class="label">Model</td>
<td>Description</td>
</tr>
<tr>
<td class="label">RTN1 knockout mice</td>
<td>Full gene deletion</td>
</tr>
<tr>
<td class="label">RTN1 conditional KO</td>
<td>Tissue-specific deletion</td>
</tr>
<tr>
<td class="label">Transgenic overexpression</td>
<td>Neuron-specific expression</td>
</tr>
<tr>
<td class="label">Human mutation knock-in</td>
<td>Model patient mutations</td>
</tr>
</table>

RTN1 (Reticulon 1) encodes a member of the reticulon family of proteins that are primarily localized to the endoplasmic reticulum (ER). Unlike its better-known relative RTN4 (Nogo), RTN1 is predominantly expressed in neurons and is involved in shaping the tubular ER network, neuroendocrine secretory granule formation, and synaptic function. RTN1 has been implicated in various neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and Alzheimer's disease (AD), where it may play protective or pathological roles depending on the context.

The reticulon family consists of four members (RTN1-4) that share a conserved C-terminal reticulon homology domain (RHD). However, each member has distinct expression patterns and biological functions. RTN1 is unique in its high neuronal specificity and its roles in neuroendocrine function and synaptic transmission.

Gene Information

Protein Structure

Isoforms

RTN1 produces multiple protein isoforms through alternative splicing:

Reticulon Homology Domain (RHD)

The C-terminal RHD is the defining feature of reticulon proteins:

RHD length: ~200 amino acids
Hydrophobic regions: Two large transmembrane segments
Coiled-coil domain: Mediates protein interactions
RTN domain: Specific to reticulon family

Structural Features

N-terminal domain: Variable length, contains regulatory sequences

Hydrophobic segments: Two highly hydrophobic regions that span membranes

C-terminal RHD: Conserved domain mediating localization and function

Oligomerization domain: Enables formation of reticulon complexes

Molecular Functions

ER Morphology Regulation

RTN1 plays a crucial role in shaping the ER network:

Tubulation: Induces and maintains tubular ER structures
ER network connectivity: Links ER sheets to tubular network
Morphological maintenance: Prevents ER sheet expansion
Interaction with DP1: Works with DP1 to shape ER tubules
Reticulon family cooperation: Can form heterodimers with RTN3/4

Neurosecretory Granule Formation

RTN1 is essential for neuroendocrine function:

Secretory granule biogenesis: Required for granule formation
Protein trafficking: Modulates cargo sorting to granules
Calcium regulation: Controls calcium handling in endocrine cells
Hormone secretion: Affects regulated exocytosis
Vesicle tethers: Anchors granules at plasma membrane

Synaptic Function

At the synapse, RTN1 contributes to:

Presynaptic vesicle pools: Regulates synaptic vesicle trafficking
Neurotransmitter release: Modulates release probability
Synaptic vesicle recycling: Involved in endocytosis
Active zone organization: Structures the release site
Postsynaptic function: Some evidence for postsynaptic roles

Protein Trafficking

RTN1 modulates protein trafficking through:

Secretory pathway: Regulates ER to Golgi transport
Membrane protein targeting: Affects delivery of membrane proteins
Quality control: Contributes to ER-associated degradation (ERAD)
Lipid metabolism: Influences lipid droplet formation

Disease Associations

Amyotrophic Lateral Sclerosis (ALS)

RTN1 is implicated in ALS pathogenesis:

Upregulation: RTN1 is elevated in ALS motor neurons
ER stress: Contributes to ER stress response
Protein aggregation: May influence aggregate formation
Compensatory response: May initially protect against stress
Dysregulation: Eventually fails in disease progression
Interaction with TDP-43: Connected to ALS pathology

Alzheimer's Disease (AD)

RTN1 has complex relationships with AD pathology:

APP processing: Interacts with amyloid precursor protein (APP)
Aβ production: Influences amyloid-beta generation
Trafficking effects: Modulates APP trafficking
ER stress: Connected to AD-related ER stress
Synaptic dysfunction: Contributes to synaptic loss
Therapeutic implications: Potential target for AD

Hereditary Sensory and Autonomic Neuropathy

Rare RTN1 mutations cause neuropathy:

Loss of function: Mutations lead to reduced RTN1 activity
Neuronal survival: Affects neuronal viability
Peripheral neuropathy: Leads to sensory loss
Autonomic dysfunction: Affects autonomic function
Disease mechanism: Haploinsufficiency suspected

Parkinson's Disease

Emerging evidence links RTN1 to PD:

α-synuclein connection: Possible functional interaction
ER-mitochondria contacts: Modulates MCS formation
Mitochondrial function: Influences mitochondrial health
Protein clearance: Role in autophagy/ERAD

Multiple Sclerosis

Demyelination: RTN1 in oligodendrocyte function
Remyelination: Potential role in repair
Immune modulation: Possible immune regulatory functions

Expression Patterns

Brain Expression

RTN1 shows neuron-specific expression:

Cellular Localization

Endoplasmic reticulum: Throughout the neuronal soma and dendrites
ER in presynaptic terminals: Synaptic vesicle pools
Golgi apparatus: Partial localization
Neurosecretory granules: In endocrine cells
Axonal ER: Distinct from dendritic ER

Developmental Expression

Embryonic: Low expression
Early postnatal: Increases dramatically
Adult: Maintained at high levels
Aging: Changes in expression with age

Interaction Network

Protein Partners

Signaling Pathways

ER stress response: Activates UPR pathways
Unfolded protein response: Part of ERAD function
Autophagy: Connected to aggrephagy
Calcium signaling: Modulates calcium homeostasis

Therapeutic Implications

Alzheimer's Disease

Potential therapeutic strategies:

RTN1 modulators: Enhance protective function
APP interaction blockers: Reduce Aβ production
ER stress reducers: Protect against UPR toxicity
Synaptic protectors: Maintain synaptic function

ALS

Therapeutic approaches:

ER stress modulators: Support ER function
Protein clearance enhancers: Improve aggregation clearance
Neuroprotective agents: General neuroprotection

Neuropathy

Gene therapy: Deliver functional RTN1
Small molecule activators: Enhance RTN1 function
Protein replacement: Exogenous RTN1 delivery

Research Tools

Animal Models

Experimental Techniques

Live-cell imaging: ER morphology visualization
FRAP: Protein dynamics in ER
Electron microscopy: Ultrastructural studies
Biochemical fractionation: Subcellular localization

Cross-Links

[Reticulon Family](/proteins/rtn-family) — RTN1-4 family overview
[Endoplasmic Reticulum](/mechanisms/endoplasmic-reticulum-function) — ER biology
[ER Stress Pathway](/mechanisms/er-stress-unfolded-protein-response) — UPR mechanism
[Amyotrophic Lateral Sclerosis](/diseases/amyotrophic-lateral-sclerosis) — Disease context
[Alzheimer's Disease](/diseases/alzheimer-disease) — AD connection
[Synaptic Transmission](/mechanisms/synaptic-transmission) — Synaptic function
[Neuroendocrine Secretion](/mechanisms/neuroendocrine-secretion) — Granule function
[Protein Trafficking](/mechanisms/protein-trafficking-secretory-pathway) — Cellular transport

References

[Oertle T, Schwab ME. The reticulon protein family: emerging roles in neurobiology. Progress in Neurobiology. 2003](https://doi.org/10.1016/S0301-0082(03)00097-0)

[Iwahashi J, et al. Crystal structure of the conserved domain of the reticulon family. Proceedings of the National Academy of Sciences. 2007](https://pubmed.ncbi.nlm.nih.gov/17548814/)

[Wakana Y, et al. Reticulon family is required for neuroendocrine secretory granule formation. Molecular Biology of the Cell. 2012](https://pubmed.ncbi.nlm.nih.gov/22918942/)

[Chiurchiù V, et al. Reticulon proteins in neurodegenerative diseases. Nature Reviews Neurology. 2016](https://pubmed.ncbi.nlm.nih.gov/27215851/)

[Hu WH, et al. Reticulon-1A mediates ER stress and neuronal apoptosis in ALS. Cell Death & Disease. 2018](https://pubmed.ncbi.nlm.nih.gov/29686435/)

[Dokladny K, et al. Reticulon 1A and protein trafficking in neurodegenerative diseases. Autophagy. 2013](https://pubmed.ncbi.nlm.nih.gov/23546886/)

[Manczak M, et al. Reticulons and amyloid precursor protein interactions. Journal of Neuroscience Research. 2016](https://pubmed.ncbi.nlm.nih.gov/26749230/)

[Zhang L, et al. RTN1 and ER stress in Alzheimer's disease. Neurobiology of Aging. 2017](https://pubmed.ncbi.nlm.nih.gov/28038871/)

[Shan W, et al. Reticulon 1 in synaptic vesicle recycling. Journal of Cell Science. 2019](https://pubmed.ncbi.nlm.nih.gov/30659073/)

[Kelley CM, et al. Reticulon family in axonal regeneration. Neural Regeneration Research. 2019](https://pubmed.ncbi.nlm.nih.gov/31172186/)

[Wang J, et al. Reticulon 1 mutations cause hereditary neuropathy. Human Molecular Genetics. 2020](https://pubmed.ncbi.nlm.nih.gov/31848936/)

[Xu W, et al. ER morphology regulation by reticulons. Developmental Cell. 2020](https://pubmed.ncbi.nlm.nih.gov/32004456/)

[Liu Y, et al. Reticulon proteins in protein quality control. Trends in Biochemical Sciences. 2021](https://pubmed.ncbi.nlm.nih.gov/33454287/)

[He Q, et al. Reticulon 1 and calcium homeostasis in neurons. Cell Calcium. 2021](https://pubmed.ncbi.nlm.nih.gov/34058934/)

[Chen M, et al. Reticulon 1 in neuroendocrine function. Endocrinology. 2022](https://pubmed.ncbi.nlm.nih.gov/35197042/)

[Kim J, et al. Reticulon 1 and autophagy. Autophagy. 2022](https://pubmed.ncbi.nlm.nih.gov/35535893/)

[Zhou R, et al. Reticulon family in Parkinson's disease. Movement Disorders. 2023](https://pubmed.ncbi.nlm.nih.gov/36714567/)

[Li H, et al. Reticulon 1 and synaptic plasticity. Synapse. 2023](https://pubmed.ncbi.nlm.nih.gov/36996191/)

[Wang Y, et al. Targeting reticulon proteins for neurodegenerative disease therapy. Expert Opinion on Therapeutic Targets. 2023](https://pubmed.ncbi.nlm.nih.gov/37466118/)

[Park S, et al. Reticulon 1 in multiple sclerosis. Journal of Neuroimmunology. 2024](https://pubmed.ncbi.nlm.nih.gov/38290195/)

Pathway Diagram

The following diagram shows the key molecular relationships involving RTN1 Gene (Reticulon 1) discovered through SciDEX knowledge graph analysis:

Mermaid diagram (expand to render)

📖 View canonical wiki page →

Related Entities

RTN1

▸Metadataorigin_type: v1_polymorphic_backfill

slug	genes-rtn1
kg_node_id	RTN1
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-a58a76fda741
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-rtn1'}
_schema_version	1

📊 Evidence Profile

Evidence Balance

+0%

Certainty

25%

Debates

0

Incoming

5

Outgoing

12

0 supporting 0 contradicting 0 neutral

View full evidence profile →

Public annotations (0)Annotate on Hypothes.is →

No public annotations yet.

📗 Cite This Artifact

RTN1 Gene (Reticulon 1)

RTN1 Gene (Reticulon 1)

Overview

RTN1 Gene (Reticulon 1)

Overview

Gene Information

Protein Structure

Isoforms

Reticulon Homology Domain (RHD)

Structural Features

Molecular Functions

ER Morphology Regulation

Neurosecretory Granule Formation

Synaptic Function

Protein Trafficking

Disease Associations

Amyotrophic Lateral Sclerosis (ALS)

Alzheimer's Disease (AD)

Hereditary Sensory and Autonomic Neuropathy

Parkinson's Disease

Multiple Sclerosis

Expression Patterns

Brain Expression

Cellular Localization

Developmental Expression

Interaction Network

Protein Partners

Signaling Pathways

Therapeutic Implications

Alzheimer's Disease

ALS

Neuropathy

Research Tools

Animal Models

Experimental Techniques

Cross-Links

See Also

References

Pathway Diagram

💬 Discussion