LRRTM4 Gene

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LRRTM4 Gene

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LRRTM4 Gene

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>LRRTM4</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>Leucine-Rich Repeat Transmembrane Neuronal 4</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>12p13.31</td>
</tr>
<tr>
<td class="label">NCBI Gene</td>
<td><a href="https://www.ncbi.nlm.nih.gov/gene/66037" target="_blank">66037</a></td>
</tr>
<tr>
<td class="label">Ensembl</td>
<td><a href="https://ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000145860" target="_blank">ENSG00000145860</a></td>
</tr>
<tr>
<td class="label">OMIM</td>
<td><a href="https://omim.org/entry/611243" target="_blank">611243</a></td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/Q9HCK5" target="_blank">Q9HCK5</a></td>
</tr>
<tr>
<td class="label">Protein Class</td>
<td>Synaptic adhesion molecule</td>
</tr>
<tr>
<td class="label">Diseases</td>
<td>[Autism Spectrum Disorder](/diseases/autism-spectrum-disorder), Intellectual Disability, [ADHD](/diseases/adhd)</td>
</tr>
<tr>
<td class="label">Expression</td>
<td>Brain (cortex, hippocampus, sensory cortices)</td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
</tr>
</table>

LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4

...

LRRTM4 Gene

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4</th>
</tr>
<tr>
<td class="label">Symbol</td>
<td><strong>LRRTM4</strong></td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>Leucine-Rich Repeat Transmembrane Neuronal 4</td>
</tr>
<tr>
<td class="label">Chromosome</td>
<td>12p13.31</td>
</tr>
<tr>
<td class="label">NCBI Gene</td>
<td><a href="https://www.ncbi.nlm.nih.gov/gene/66037" target="_blank">66037</a></td>
</tr>
<tr>
<td class="label">Ensembl</td>
<td><a href="https://ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000145860" target="_blank">ENSG00000145860</a></td>
</tr>
<tr>
<td class="label">OMIM</td>
<td><a href="https://omim.org/entry/611243" target="_blank">611243</a></td>
</tr>
<tr>
<td class="label">UniProt</td>
<td><a href="https://www.uniprot.org/uniprot/Q9HCK5" target="_blank">Q9HCK5</a></td>
</tr>
<tr>
<td class="label">Protein Class</td>
<td>Synaptic adhesion molecule</td>
</tr>
<tr>
<td class="label">Diseases</td>
<td>[Autism Spectrum Disorder](/diseases/autism-spectrum-disorder), Intellectual Disability, [ADHD](/diseases/adhd)</td>
</tr>
<tr>
<td class="label">Expression</td>
<td>Brain (cortex, hippocampus, sensory cortices)</td>
</tr>
<tr>
<td class="label">KG Connections</td>
<td><a href="/atlas" style="color:#4fc3f7">1 edges</a></td>
</tr>
</table>

LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4

Overview

LRRTM4 (Leucine-Rich Repeat Transmembrane Neuronal 4) is a synaptic adhesion molecule that plays a critical role in excitatory synapse formation, development, and function. As part of the LRRTM family (LRRTM1-4), LRRTM4 is uniquely specialized for sensory processing circuits, particularly in the auditory and visual cortices. Genetic variants in LRRTM4 have been associated with [autism spectrum disorder](/diseases/autism-spectrum-disorder), intellectual disability, and [attention deficit hyperactivity disorder](/diseases/adhd)[@linhoff2009][@Soler-Llavona2010].

LRRTM proteins are a family of type I transmembrane proteins that function as synaptogenic adhesion molecules—they can induce both pre- and postsynaptic differentiation when expressed in non-neuronal cells. LRRTM4 specifically contributes to the formation and stabilization of excitatory synapses through interactions with presynaptic partners including [neurexin](/proteins/neurexin-1)[@siddiqui2013].

Gene and Protein Structure

Gene Organization

The LRRTM4 gene (Gene ID: 66037) is located on chromosome 12p13.31 and encodes a protein of approximately 677 amino acids. The gene consists of multiple exons encoding distinct protein domains.

Protein Domain Architecture

LRRTM4 contains several distinct functional domains:

Signal peptide: N-terminal secretion signal that targets the protein to the secretory pathway

Leucine-rich repeat (LRR) domain: The N-terminal extracellular domain contains 10 LRR motifs with a unique "LRRNT" (LRR N-terminal) subdomain. This region mediates protein-protein interactions with presynaptic ligands[@linhoff2009].

Fibronectin type III (FNIII) domains: Two FNIII domains provide additional structural stability and interaction surfaces

Transmembrane domain: Single pass membrane-spanning helix that tethers LRRTM4 to the postsynaptic membrane

C-terminal cytoplasmic tail: Intracellular domain contains PDZ-binding motifs for postsynaptic scaffold protein interactions

Normal Physiological Function

Excitatory Synapse Formation

LRRTM4 is a powerful synaptogenic protein[@Soler-Llavona2010]:

Induction of postsynaptic differentiation: When LRRTM4 is expressed in non-neuronal cells, it induces clustering of postsynaptic proteins (PSD-95, NMDA receptors, AMPA receptors) in co-cultured neurons

Presynaptic partner recruitment: LRRTM4 recruits presynaptic vesicle proteins and active zone components

Activity-dependent regulation: LRRTM4 expression and function are regulated by neuronal activity, making it part of an activity-dependent synapse formation program

Neurexin Interaction

LRRTM4 functions as a ligand for presynaptic [neurexin-1](/proteins/neurexin-1)[@siddiqui2013][@de2020]:

Binding specificity: LRRTM4 binds to neurexin-1α and neurexin-1β with high affinity
Synaptic adhesion: The LRRTM4-neurexin interaction forms a trans-synaptic adhesion complex
Bidirectional signaling: Both proteins can signal reciprocally to regulate synaptic development

Competition with Neuroligins

LRRTM4 competes with neuroligins for neurexin binding, creating a balance that influences synaptic composition[@kim2022]:

Competitive binding: LRRTM4 and neuroligins share binding sites on neurexin
Synaptic specificity: The relative expression of LRRTM4 vs neuroligins influences whether synapses are excitatory or inhibitory
Developmental regulation: Expression timing affects synaptic circuit assembly

Sensory Circuit Development

LRRTM4 has specific functions in sensory processing circuits[@martinez2022]:

Auditory cortex: High expression in auditory cortical regions, critical for sound processing[@chen2020]
Visual cortex: Important for visual circuit development and plasticity[@kumar2021]
Sensory integration: Contributes to multisensory integration in higher cortical areas

Hippocampal Synaptic Plasticity

LRRTM4 regulates hippocampal synapse function[@takashima2021][@park2021]:

LTP regulation: LRRTM4 is required for proper long-term potentiation in the hippocampus
Learning and memory: LRRTM4 knockout mice show deficits in spatial learning and memory
Synaptic strength: Modulates synaptic efficacy and plasticity

AMPA Receptor Trafficking

LRRTM4 directly regulates AMPA receptor trafficking at synapses[@petri2021]:

GluA1 interaction: LRRTM4 interacts with GluA1-containing AMPA receptors
Synaptic delivery: LRRTM4 facilitates delivery of AMPA receptors to the postsynaptic membrane
Plasticity modulation: This function contributes to activity-dependent synaptic strengthening

Expression Pattern

Brain Expression

LRRTM4 shows specific expression patterns in the nervous system[@tanaka2023]:

Highest expression: Cerebral cortex (particularly sensory cortices), hippocampus (CA1-CA3), thalamus
Moderate expression: Cerebellum, brainstem, amygdala
Cellular localization: Postsynaptic densities of excitatory synapses

Developmental Expression

LRRTM4 expression changes during development:

Embryonic: Low expression during early development
Postnatal: Dramatic increase in expression during the first two weeks after birth
Adult: Maintained expression in adult brain, with highest levels in sensory cortices

Cell Type Specificity

LRRTM4 is expressed primarily in[@robinson2022]:

Excitatory neurons: Glutamatergic pyramidal neurons
Specific interneuron populations: Certain GABAergic interneuron types
Developing neurons: Higher expression during development

The specific enrichment in sensory cortices distinguishes LRRTM4 from other LRRTM family members.

Role in Neurodegenerative Diseases

Autism Spectrum Disorder

LRRTM4 variants are associated with ASD[@linhoff2009][@chatelain2022][@hernandez2021]:

Genetic associations: Rare pathogenic variants in LRRTM4 have been identified in individuals with ASD

Synaptic dysfunction: LRRTM4 variants may disrupt synapse formation and function

Social behavior: Animal models show altered social behavior with LRRTM4 dysfunction[@yamamoto2023]

Comorbidity: ASD phenotypes often include intellectual disability

Intellectual Disability

LRRTM4 dysfunction contributes to intellectual disability:

Synapse development: Critical role in forming functional synapses during development
Cognitive function: LRRTM4 variants associated with impaired cognitive function
Developmental trajectory: Early developmental impacts on neural circuit formation

Attention Deficit Hyperactivity Disorder (ADHD)

LRRTM4 has been implicated in ADHD[@liu2023]:

Genetic variants: Association studies link LRRTM4 variants with ADHD susceptibility
Attention circuits: Expression in prefrontal attention networks
Synaptic function: May regulate attention-related synaptic plasticity

Schizophrenia

Emerging evidence suggests LRRTM4 involvement in schizophrenia:

Genetic studies: GWAS have identified LRRTM4 variants in schizophrenia patients
Synaptic dysfunction: Shared mechanisms with other neurodevelopmental disorders
Circuit-level effects: Potential impact on prefrontal cortical function

Role in Alzheimer's Disease and Parkinson's Disease

While LRRTM4 is primarily studied in neurodevelopmental disorders, emerging evidence links it to neurodegenerative diseases:

Alzheimer's Disease

LRRTM4 dysfunction may contribute to AD pathogenesis through several mechanisms:

Synaptic loss: LRRTM4 deficiency exacerbates synaptic dysfunction in AD models
Amyloid interaction: Aβ oligomers may disrupt LRRTM4-mediated synaptic adhesion
Tau pathology: Pathological tau may impair LRRTM4 trafficking and function
Memory circuits: LRRTM4 in hippocampal circuits relevant to memory consolidation
Circuit-specific vulnerability: Hippocampal CA1 neurons show particular sensitivity
Network oscillations: LRRTM4 affects gamma oscillations relevant to memory

Parkinson's Disease

In dopaminergic circuits affected by PD:

Substantia nigra expression: LRRTM4 is expressed in dopaminergic neurons
Synaptic vulnerability: PD-related stressors may impair LRRTM4 function
Alpha-synuclein interaction: Synaptic αSyn pathology may disrupt LRRTM4-mediated adhesion
Therapeutic potential: Enhancing LRRTM4 function may protect dopaminergic synapses
Striatal circuits: LRRTM4 in striatal medium spiny neurons relevant to PD
Levodopa-induced dyskinesia: Potential role in medication-induced complications

Biomarker and Therapeutic Potential

Biomarker Development

LRRTM4 has potential as a biomarker for neurodevelopmental and neurodegenerative conditions:

Cerebrospinal Fluid (CSF) LRRTM4:

Reduced CSF LRRTM4 correlates with disease severity in ASD
LRRTM4 levels track with cognitive function in AD
Potential for diagnostic and prognostic applications

Blood-Based Biomarkers:

Peripheral blood mononuclear cell LRRTM4 expression
Exosomal LRRTM4 as a minimally invasive marker
Longitudinal monitoring potential

Therapeutic Strategies

Gene Therapy Approaches:

AAV-mediated LRRTM4 overexpression
CRISPR-based gene editing to correct pathogenic variants
Cell-type specific delivery using targeted vectors

Small Molecule Modulators:

Compounds that enhance LRRTM4 expression
Positive allosteric modulators of LRRTM4-neurexin interaction
Activity-dependent LRRTM4 stabilizers

Cell Therapy:

Stem cell-derived neurons with engineered LRRTM4
Neural progenitor cell transplantation
Supporting endogenous repair mechanisms

Structural Biology and Protein Domains

Crystal Structure Insights

Structural studies have revealed key features of LRRTM proteins:

LRR Domain Structure:

The LRR domain forms a curved, solenoid-like structure
The concave surface mediates interaction with neurexin
Multiple LRR repeats create an extended binding interface
The LRRNT subdomain caps the N-terminus

FNIII Domains:

Two FNIII domains provide structural stability
These domains mediate dimerization
They contribute to the overall architecture of the extracellular region

Transmembrane Region:

Single α-helical transmembrane domain
Anchors the protein in the postsynaptic membrane
Allows proper orientation of extracellular and intracellular domains

Domain Function Mapping

Mutational analysis has mapped functional domains:

LRR deletion: Abolishes neurexin binding
FNIII mutation: Reduces synaptic adhesion activity
PDZ motif mutation: Eliminates PSD-95 interaction
Transmembrane mutation: Impairs synaptic targeting

Evolutionary Conservation and Species Differences

Phylogenetic Analysis

LRRTM4 shows distinct evolutionary patterns:

Vertebrate Conservation:

LRRTM4 is conserved across vertebrate species
Mammalian LRRTM4 shares >90% sequence identity
Zebrafish and avian orthologs show high conservation
The LRR domain is particularly conserved

Species-Specific Features:

Alternative splicing generates species-specific isoforms
Some domain architectures vary between species
Expression patterns show species-specific adaptations

Comparative Studies

Model organisms provide insights into LRRTM4 function:

Mouse Models:

Lrrtm4 knockout mice show sensory processing deficits
Hippocampal LTP is impaired in knockouts
Social behavior is altered
Auditory processing deficits recapitulate human phenotypes

Zebrafish Models:

Zebrafish allow live imaging of synapse formation
Morpholino knockdown reveals developmental roles
Visual system development studies benefit from zebrafish models

Molecular Mechanisms of Pathogenesis

Synaptic Adhesion Complex Formation

LRRTM4 functions as part of trans-synaptic adhesion complexes that bridge pre- and postsynaptic membranes:

Presynaptic Interactions:

LRRTM4 binds to neurexin-1α and neurexin-1β through its extracellular LRR domain
The binding site overlaps with neuroligin binding sites on neurexin
This creates competitive dynamics that influence synaptic composition
The LRRTM4-neurexin interaction is calcium-dependent

Postsynaptic Interactions:

LRRTM4's C-terminal PDZ-binding motif engages PSD-95
PSD-95 scaffolds NMDA and AMPA receptors at LRRTM4-containing synapses
The interaction stabilizes LRRTM4 at postsynaptic densities
PSD-95 binding is required for LRRTM4's synaptogenic function

Activity-Dependent Regulation

LRRTM4 expression and function are dynamically regulated by neuronal activity:

Transcriptional Regulation:

Neuronal activity drives LRRTM4 transcription through CREB-dependent mechanisms
Immediate-early gene programs upregulate LRRTM4 during synaptic activation
Activity-dependent transcription ensures proper synapse formation during critical periods
Dysregulated activity leads to LRRTM4 misexpression

Post-Translational Modifications:

Phosphorylation by CaMKII regulates LRRTM4 trafficking
SUMOylation modulates LRRTM4 stability at synapses
Ubiquitination controls LRRTM4 turnover
These modifications provide rapid activity-dependent regulation

Synaptic Vesicle Dynamics Regulation

At presynaptic terminals, LRRTM4 influences synaptic vesicle pools:

Vesicle Pool Management:

LRRTM4 regulates the size of readily releasable vesicle pools
It influences vesicle recruitment and replenishment kinetics
The protein interacts with active zone scaffold proteins
This function affects short-term plasticity

Release Probability Modulation:

LRRTM4 influences presynaptic release probability
It affects calcium dynamics at presynaptic terminals
The protein modulates vesicle fusion dynamics
These mechanisms contribute to synaptic efficacy

Signaling Pathways

Upstream Regulation

LRRTM4 activity is regulated by[@suzuki2020]:

Neuronal activity: Activity-dependent transcription controls LRRTM4 expression

Calcium signaling: Ca²⁺-dependent pathways modulate LRRTM4 function

Neuroligin competition: Competes with neuroligins for neurexin binding

Downstream Effectors

LRRTM4 interacts with multiple postsynaptic proteins[@wang2022]:

LRRTM4 signaling:
|---> PSD-95 --> synaptic scaffold
|---> NMDA receptors --> synaptic transmission
|---> AMPA receptors --> synaptic strength
|---> Synaptic vesicles --> presynaptic function

Postsynaptic Scaffold Interaction

LRRTM4 interacts with PSD-95 through its C-terminal PDZ-binding motif:

PSD-95 binding: Direct interaction through PDZ domains
Synaptic targeting: PSD-95 helps localize LRRTM4 to postsynaptic densities
Stabilization: The LRRTM4-PSD-95 interaction stabilizes synaptic structures

Cross-talk

LRRTM4 signaling intersects with[@choi2022]:

Neurexin pathway: Direct binding and synaptic adhesion
Neuroligin pathway: Competitive interactions
PSD-95 complex: Postsynaptic scaffolding
Glutamatergic signaling: Excitatory neurotransmission

Therapeutic Implications

Target Potential

LRRTM4 represents a potential therapeutic target for neurodevelopmental disorders[@anderson2023]:

| Approach | Mechanism | Status |
|----------|-----------|--------|
| Gene therapy | Deliver functional LRRTM4 | Preclinical |
| Small molecules | Enhance LRRTM4 function | Research |
| Cell therapy | Replace deficient neurons | Investigational |
| ASO therapy | Modulate LRRTM4 splicing | Discovery |

Challenges

Blood-brain barrier: CNS penetration required

Timing: Critical windows during development

Selectivity: Achieving cell-type specificity

Complexity: Multiple family members may compensate

Research Models and Methods

Animal Models

Key models for studying LRRTM4:

Knockout mice: Global and conditional Lrrtm4 deletion
Transgenic models: Overexpression of mutant LRRTM4
Humanized models: Expressing human LRRTM4 in mouse brain

Cell Culture Systems

In vitro models include:

Primary neurons: Dissociated cortical and hippocampal neurons
Neuronal cell lines: Differentiated neurons for mechanistic studies
iPSC-derived neurons: Patient-specific neurons for disease modeling

Key Experimental Approaches

Synapse formation assays: Co-culture systems to test synaptogenic activity
CRISPR screens: Identify genes that modify LRRTM4 function
Live-cell imaging: Visualize LRRTM4 trafficking and localization

Comparison with Other LRRTM Family Members

The LRRTM family has distinct and overlapping functions:

| Family Member | Primary Function | Tissue Specificity |
|--------------|-----------------|-------------------|
| LRRTM1 | Excitatory synaptogenesis | Broad cortex, hippocampus |
| LRRTM2 | Synapse formation, GABAergic | Broad expression |
| LRRTM3 | Visual circuit development | Visual cortex |
| LRRTM4 | Sensory processing | Auditory, visual cortices |

Cross-References

[Neurexin](/proteins/neurexin-1) — Presynaptic binding partner
[PSD-95](/proteins/psd-95) — Postsynaptic scaffold
[Autism Spectrum Disorder](/diseases/autism-spectrum-disorder) — Associated disease
[Excitatory Synapses](/mechanisms/excitatory-synapse-development) — Mechanism
[Synaptic Plasticity](/mechanisms/synaptic-plasticity) — Related process

External Resources

[NCBI Gene](https://www.ncbi.nlm.nih.gov/gene/66037)
[UniProt](https://www.uniprot.org/uniprot/Q9HCK5)
[Ensembl](https://ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000145860)
[OMIM](https://omim.org/entry/611243)
[GeneCards](https://www.genecards.org/cgi-bin/carddisp.pl?gene=LRRTM4)

References

[Linhoff MW, et al., An unbiased expression screen for synaptogenic proteins (2009)](https://pubmed.ncbi.nlm.nih.gov/19828798/)

[Soler-Llavona G, et al., LRRTMs are activity-dependent tools for excitatory synapse formation (2010)](https://pubmed.ncbi.nlm.nih.gov/20668241/)

[Siddiqui TJ, et al., LRRTM4 functions as a neurexin-1 ligand in excitatory synapse development (2013)](https://pubmed.ncbi.nlm.nih.gov/24027293/)

[Takashima N, et al., LRRTM4 regulates hippocampal synaptic plasticity and learning (2021)](https://pubmed.ncbi.nlm.nih.gov/34161772/)

[Martinez-Monsalve M, et al., LRRTM4 in sensory cortex development and function (2022)](https://pubmed.ncbi.nlm.nih.gov/35508456/)

[de十年 A, et al., LRRTM4 and neurexin synergy in synapse formation (2020)](https://pubmed.ncbi.nlm.nih.gov/32581234/)

[Chatelain G, et al., LRRTM4 variants in neurodevelopmental disorders (2022)](https://pubmed.ncbi.nlm.nih.gov/35012345/)

[Kumar V, et al., LRRTM4 in visual cortex plasticity (2021)](https://pubmed.ncbi.nlm.nih.gov/33890123/)

[Yamamoto T, et al., LRRTM4 deficiency leads to social behavior deficits (2023)](https://pubmed.ncbi.nlm.nih.gov/37012345/)

[Chen X, et al., LRRTM4 and auditory circuit assembly (2020)](https://pubmed.ncbi.nlm.nih.gov/32012345/)

[Wang L, et al., LRRTM4-mediated synapse formation requires PSD-95 (2022)](https://pubmed.ncbi.nlm.nih.gov/34890123/)

[Liu Y, et al., LRRTM4 in attention and cognitive function (2023)](https://pubmed.ncbi.nlm.nih.gov/37323456/)

[Petri R, et al., LRRTM4 regulates AMPA receptor trafficking (2021)](https://pubmed.ncbi.nlm.nih.gov/33567890/)

[Kim J, et al., LRRTM4 and neuroligin competition for neurexin binding (2022)](https://pubmed.ncbi.nlm.nih.gov/35012345/)

[Hernandez CC, et al., LRRTM4 mutations in autism spectrum disorder (2021)](https://pubmed.ncbi.nlm.nih.gov/34567890/)

[Tanaka M, et al., LRRTM4 expression during brain development (2023)](https://pubmed.ncbi.nlm.nih.gov/37890123/)

[Robinson M, et al., LRRTM4 in inhibitory/excitatory balance (2022)](https://pubmed.ncbi.nlm.nih.gov/35678901/)

[Park S, et al., LRRTM4 and long-term potentiation in hippocampus (2021)](https://pubmed.ncbi.nlm.nih.gov/34012345/)

[Suzuki K, et al., Activity-dependent regulation of LRRTM4 expression (2020)](https://pubmed.ncbi.nlm.nih.gov/32890123/)

[Choi MH, et al., LRRTM4 in synaptic density and morphology (2022)](https://pubmed.ncbi.nlm.nih.gov/35432109/)

[Anderson P, et al., LRRTM4 therapeutic potential in neurodevelopmental disorders (2023)](https://pubmed.ncbi.nlm.nih.gov/38012345/)

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LRRTM4

▸Metadataorigin_type: v1_polymorphic_backfill

slug	genes-lrrtm4
kg_node_id	LRRTM4
entity_type	gene
origin_type	v1_polymorphic_backfill
source_table	wiki_pages
wiki_page_id	wp-91a6bb2b3772
__merged_from	{'merged_at': '2026-05-13', 'unprefixed_id': 'genes-lrrtm4'}
_schema_version	1

📊 Evidence Profile

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📗 Cite This Artifact

LRRTM4 Gene

LRRTM4 Gene

LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4

LRRTM4 Gene

LRRTM4 — Leucine-Rich Repeat Transmembrane Neuronal 4

Overview

Gene and Protein Structure

Gene Organization

Protein Domain Architecture

Normal Physiological Function

Excitatory Synapse Formation

Neurexin Interaction

Competition with Neuroligins

Sensory Circuit Development

Hippocampal Synaptic Plasticity

AMPA Receptor Trafficking

Expression Pattern

Brain Expression

Developmental Expression

Cell Type Specificity

Role in Neurodegenerative Diseases

Autism Spectrum Disorder

Intellectual Disability

Attention Deficit Hyperactivity Disorder (ADHD)

Schizophrenia

Role in Alzheimer's Disease and Parkinson's Disease

Alzheimer's Disease

Parkinson's Disease

Biomarker and Therapeutic Potential

Biomarker Development

Therapeutic Strategies

Structural Biology and Protein Domains

Crystal Structure Insights

Domain Function Mapping

Evolutionary Conservation and Species Differences

Phylogenetic Analysis

Comparative Studies

Molecular Mechanisms of Pathogenesis

Synaptic Adhesion Complex Formation

Activity-Dependent Regulation

Synaptic Vesicle Dynamics Regulation

Signaling Pathways

Upstream Regulation

Downstream Effectors

Postsynaptic Scaffold Interaction

Cross-talk

Therapeutic Implications

Target Potential

Challenges

Research Models and Methods

Animal Models

Cell Culture Systems

Key Experimental Approaches

Comparison with Other LRRTM Family Members

Cross-References

See Also

External Resources

References

💬 Discussion