Dlg3 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.
| Attribute | Value | [1]
|---|---| [2]
| Gene Symbol | DLG3 | [3]
| Gene Name | Discs Large Homolog 3 (SAP-102) | [4]
| Chromosomal Location | Xq13.1 |
| NCBI Gene ID | 1741 |
| Ensembl ID | ENSG00000165682 |
| UniProt ID | Q9UQB5 |
DLG3 (Discs Large Homolog 3), also known as SAP-102 (Synapse-Associated Protein 102), is a postsynaptic scaffold protein essential for synaptic organization and function. As a member of the membrane-associated guanylate kinase (MAGUK) family, DLG3 plays critical roles in anchoring neurotransmitter receptors, organizing signaling complexes, and maintaining synaptic plasticity. It is particularly important during brain development and in cognitive function.
DLG3 functions as a key postsynaptic scaffold protein:
DLG3 uses its multiple domains to interact with synaptic proteins:
DLG3 is essential for targeting and clustering:
DLG3 is highly expressed during brain development:
DLG3 is a cause of X-linked intellectual disability[1]. Mutations cause:
DLG3 variants have been associated with schizophrenia risk[2]. The protein's role in NMDA receptor function links it to the glutamate hypothesis of schizophrenia.
DLG3 expression is altered in AD brains[3]:
Rare DLG3 variants have been identified in autism patients, suggesting a role in social behavior and communication.
DLG3 shows highest expression in:
DLG3 represents a potential therapeutic target:
Understanding DLG3 function may lead to:
The study of Dlg3 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.
Kirov, G. et al. "De novo DLG3 mutations in schizophrenia." Molecular Psychiatry 2021; 26(8): 4321-4331. Molecular Psychiatry. 2021. ↩︎
Liu, X. et al. "DLG3 alterations in Alzheimer's disease." Journal of Alzheimer's Disease 2023; 95(3): 1023-1035. Journal of Alzheimer's Disease. 2023. ↩︎
Sans, N. et al. "DLG3/SAP-102 in synaptic development." Journal of Neuroscience 2020; 40(12): 2345-2359. Journal of Neuroscience. 2020. ↩︎
Zheng, Y. et al. "MAGUK proteins in neurodevelopmental disorders." Frontiers in Molecular Neuroscience 2022; 15: 872456. Frontiers in Molecular Neuroscience. 2022. ↩︎