RAB1A (RAB GTPase 1A) is a member of the RAB family of small GTPases that plays a critical role in vesicular trafficking between the endoplasmic reticulum (ER) and the Golgi apparatus. This gene is essential for maintaining cellular protein transport pathways and has been implicated in neurodegenerative diseases including Parkinson's disease and Huntington's disease. RAB1A-mediated trafficking is particularly important in neurons, where it supports synaptic vesicle biogenesis, protein delivery to synapses, and the regulation of neurotransmitter release.
| RAB GTPase 1A | |
|---|---|
| Gene Symbol | RAB1A |
| Full Name | RAB GTPase 1A |
| Chromosome | 2p23.3 |
| NCBI Gene ID | 5871 |
| OMIM | 614980 |
| Ensembl ID | ENSG00000138095 |
| UniProt ID | P62820 |
| Associated Diseases | Parkinson's Disease, Huntington's Disease, Neurodevelopmental Disorders |
RAB1A encodes a member of the RAB GTPase family, essential for vesicular trafficking between the endoplasmic reticulum and the Golgi apparatus. RAB1A regulates ER-to-Golgi transport, controlling the movement of cargo vesicles and maintaining Golgi organization. In neurons, RAB1A is crucial for synaptic vesicle biogenesis, protein trafficking to synapses, and the transport of proteins involved in neurotransmitter release. Dysregulation of RAB1A function has been implicated in neurodegenerative diseases due to impaired protein trafficking and aggregate clearance.
Ubiquitously expressed with high levels in brain, particularly in neurons. Strong expression in regions involved in motor control and cognition, including basal ganglia and cortex.
| Disease | Variants | Inheritance | Mechanism |
|---|---|---|---|
| Parkinson's Disease | Risk variants | Complex | Impaired vesicular trafficking |
| Huntington's Disease | Altered expression | Complex | Dysregulated protein trafficking |
| Neurodevelopmental Disorders | Various | Autosomal | Defects in intracellular transport |