NLGN1 Gene

NLGN1 Gene

Introduction

Pathway Diagram

NLGN1 Gene

Introduction

Pathway Diagram

<table class="infobox infobox-gene">
<tr>
<th class="infobox-header" colspan="2">NLGN1 Gene</th>
</tr>
<tr>
<td class="label">Gene Symbol</td>
<td>NLGN1</td>
</tr>
<tr>
<td class="label">Full Name</td>
<td>Neuroligin-1</td>
</tr>
<tr>
<td class="label">Chromosomal Location</td>
<td>3q26.31</td>
</tr>
<tr>
<td class="label">NCBI Gene ID</td>
<td>22871</td>
</tr>
<tr>
<td class="label">OMIM ID</td>
<td>600565 (related)</td>
</tr>
<tr>
<td class="label">Ensembl ID</td>
<td>ENSG00000138738</td>
</tr>
<tr>
<td class="label">UniProt ID</td>
<td>O60343</td>
</tr>
<tr>
<td class="label">Associated Diseases</td>
<td>Autism Spectrum Disorder, Schizophrenia, Alzheimer's Disease, Intellectual Disability</td>
</tr>
<tr>
<td class="label">Approach</td>
<td>Status</td>
</tr>
<tr>
<td class="label">AAV-NLGN1</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">Cell-penetrant peptides</td>
<td>Preclinical</td>
</tr>
<tr>
<td class="label">Small molecule modulators</td>
<td>Research</td>
</tr>
</table>

Nlgn1 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.

NLGN1 (Neuroligin-1) is a gene encoding a postsynaptic cell adhesion molecule that mediates synaptic formation, function, and plasticity. It is essential for excitatory synaptic transmission. [@chih2005]

Overview

Function

NLGN1 encodes neuroligin-1, a postsynaptic cell adhesion molecule that interacts with presynaptic neurexins to form functional synapses.

Molecular Function

• Synaptic Adhesion: Binds to presynaptic neurexins to initiate synapse formation
• Postsynaptic Differentiation: Recruits postsynaptic proteins (PSD-95, [NMDA](/entities/nmda-receptor) receptors, AMPA receptors)
• Synaptic Transmission: Regulates NMDA/AMPA receptor trafficking
• Synaptic Plasticity: Involved in [LTP](/mechanisms/long-term-potentiation) and LTD
• Excitatory Synapses: Primarily localizes to excitatory (glutamatergic) synapses

Expression Pattern

NLGN1 is expressed primarily in the brain:

• Cerebral [Cortex](/brain-regions/cortex): Layer 2/3 pyramidal [neurons](/entities/neurons)
• [Hippocampus](/brain-regions/hippocampus): CA1 pyramidal neurons, dentate gyrus granule cells
• Striatum: Medium spiny neurons
• Cerebellum: Purkinje cells

Splice Variants

Neuroligin-1 has multiple splice sites that regulate:

• Interaction with neurexin isoforms
• Synaptic targeting
• Binding affinity

Disease Associations

Autism Spectrum Disorder

NLGN1 is a major ASD risk gene:

• NLGN1 mutations cause autosomal dominant ASD
• Impaired synaptic adhesion
• Mouse models show social deficits
• Often with intellectual disability

Schizophrenia

NLGN1 in schizophrenia:

• Reduced expression in patient brains
• Genetic associations
• May contribute to synaptic dysfunction

Alzheimer's Disease

NLGN1 involvement in AD:

• Reduced at early disease stages
• Synaptic loss is hallmark of AD
• May be affected by [Aβ](/proteins/amyloid-beta) pathology
• Therapeutic target for synaptic restoration

Intellectual Disability

NLGN1 mutations cause:

• Non-syndromic intellectual disability
• Developmental delay
• Often with autism features

Therapeutic Targeting

Therapeutic Approaches

Biomarkers

• NLGN1 levels in CSF as synaptic marker
• Correlates with cognitive function

Key Publications

See Also

• [Synaptic Dysfunction Pathway](/mechanisms/synaptic-dysfunction-pathway)
• [NRXN1 Gene](/proteins/nrxn1-protein)
• [Neurexins](/proteins/neurexins)
• [PSD-95](/proteins/psd95-protein)
• [Autism Spectrum Disorder](/diseases/autism-spectrum-disorder)
• [Alzheimer's Disease](/diseases/alzheimers-disease)

External Links

• [NCBI Gene: NLGN1](https://www.ncbi.nlm.nih.gov/gene/22871)
• [UniProt: O60343](https://www.uniprot.org/uniprot/O60343)
• [Ensembl: ENSG00000138738](https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000138738)

Background

The study of Nlgn1 Gene 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

Related Hypotheses

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

• [Trans-Synaptic Adhesion Molecule Modulation](/hypothesis/h-fdaae8d9) — <span style="color:#ff8a65;font-weight:600">0.34</span> · Target: NLGN1

Pathway Diagram

The following diagram shows the key molecular relationships involving NLGN1 Gene discovered through SciDEX knowledge graph analysis: