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.
| Property |
Value |
| Gene Symbol |
NLGN1 |
| Full Name |
Neuroligin-1 |
| Chromosomal Location |
3q26.31 |
| NCBI Gene ID |
22871 |
| OMIM ID |
600565 (related) |
| Ensembl ID |
ENSG00000138738 |
| UniProt ID |
O60343 |
| Associated Diseases |
Autism Spectrum Disorder, Schizophrenia, Alzheimer's Disease, Intellectual Disability |
NLGN1 encodes neuroligin-1, a postsynaptic cell adhesion molecule that interacts with presynaptic neurexins to form functional synapses.
- Synaptic Adhesion: Binds to presynaptic neurexins to initiate synapse formation
- Postsynaptic Differentiation: Recruits postsynaptic proteins (PSD-95, NMDA receptors, AMPA receptors)
- Synaptic Transmission: Regulates NMDA/AMPA receptor trafficking
- Synaptic Plasticity: Involved in LTP and LTD
- Excitatory Synapses: Primarily localizes to excitatory (glutamatergic) synapses
NLGN1 is expressed primarily in the brain:
- Cerebral Cortex: Layer 2/3 pyramidal neurons
- Hippocampus: CA1 pyramidal neurons, dentate gyrus granule cells
- Striatum: Medium spiny neurons
- Cerebellum: Purkinje cells
Neuroligin-1 has multiple splice sites that regulate:
- Interaction with neurexin isoforms
- Synaptic targeting
- Binding affinity
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
NLGN1 in schizophrenia:
- Reduced expression in patient brains
- Genetic associations
- May contribute to synaptic dysfunction
NLGN1 involvement in AD:
- Reduced at early disease stages
- Synaptic loss is hallmark of AD
- May be affected by Aβ pathology
- Therapeutic target for synaptic restoration
NLGN1 mutations cause:
- Non-syndromic intellectual disability
- Developmental delay
- Often with autism features
| Approach |
Status |
Description |
| AAV-NLGN1 |
Preclinical |
Gene therapy to restore expression |
| Cell-penetrant peptides |
Preclinical |
Stabilize synaptic adhesion |
| Small molecule modulators |
Research |
Enhance synaptic function |
- NLGN1 levels in CSF as synaptic marker
- Correlates with cognitive function
- Varoqueaux F et al. (2006) Neuroligins determine synapse maturation and function. Neuron. PMID: 16771899
- Chih B et al. (2005) A neuroligin-4 mutation associated with autism. Nature. PMID: 15889149
- Bemben MA et al. (2015) Neuroligin-dependent synapse elimination requires retromer. Cell. PMID: 26074073
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.
- Varoqueaux F, et al. Neuroligins determine synapse maturation and function. Neuron. 2006;51(6):741-754. PMID:16771899
- Chih B, et al. A neuroligin-4 mutation associated with autism. Nature. 2005;435(7045):1232-1238. PMID:15889149
- Bemben MA, et al. Neuroligin-dependent synapse elimination requires retromer. Cell. 2015;163(4):896-907. PMID:26074073
- Sudhof TC. Synaptic neurexin complexes: a molecular code for the logic of neural circuits. Cell. 2017;171(4):745-769. PMID:29100073
- Nogi T, et al. Structural basis for neuroligin-4 binding to neurexin-1. Cell Rep. 2022;41(2):111475. PMID:36351420