Pld3 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.
Phospholipase D3
| Gene Symbol | PLD3 |
|---|---|
| Full Name | Phospholipase D3 |
| Chromosomal Location | 19q13.32 |
| NCBI Gene ID | 23646 |
| OMIM | 614739 |
| Ensembl ID | ENSG00000119608 |
| UniProt ID | Q8N8S7 |
| Associated Diseases | Alzheimer's Disease, Spastic Paraplegia |
| Gene Symbol | PLD3 |
|---|---|
| Full Name | Phospholipase D3 |
| Chromosomal Location | 19q13.32 |
| NCBI Gene ID | 23646 |
| OMIM | 614739 |
| Ensembl ID | ENSG00000119608 |
| UniProt ID | Q8N8S7 |
| Associated Diseases | Alzheimer's Disease, Spastic Paraplegia |
PLD3 (Phospholipase D3) is an endoplasmic reticulum-resident phospholipase enzyme that plays important roles in cellular lipid metabolism and lysosomal function. Originally identified as a risk factor for Alzheimer's disease through genetic studies, PLD3 has emerged as an important regulator of the autophagic-lysosomal pathway—a critical clearance mechanism for protein aggregates that accumulate in neurodegenerative diseases.
Rare coding variants in PLD3 were first linked to Alzheimer's disease in 2014, with subsequent studies confirming that certain missense and nonsense variants increase AD risk by approximately 2-3 fold. The mechanism involves impaired lysosomal function, reduced Aβ degradation, and accumulation of protein aggregates. PLD3 is highly expressed in brain regions vulnerable to neurodegeneration, and its expression is reduced in Alzheimer's disease brains.
PLD3 encodes a phospholipase D enzyme that hydrolyzes phospholipids to generate phosphatidic acid. While originally thought to be a secreted protein, PLD3 is now recognized as an endoplasmic reticulum-resident protein with important functions in cellular lipid metabolism and lysosomal function.
Key functions include:
PLD3 contains a PLD-like domain with conserved HXK(X)4D(X)EDLY motifs characteristic of phospholipase D family members.
Rare coding variants in PLD3 were first linked to Alzheimer's disease in 2014 through whole-exome sequencing:
Recessive mutations in PLD3 cause a form of hereditary spastic paraplegia (SPG54). The disease mechanism involves:
PLD3 is expressed in various tissues with highest expression in the brain:
Expression is conserved across species, and PLD3 orthologs are found in Drosophila and C. elegans.
The study of Pld3 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.
Last updated: 2026-03-04