Slc6A1 Protein — Gaba Transporter 1 is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
| Protein Name | Solute Carrier Family 6 Member 1 (GABA Transporter 1) |
|---|---|
| Gene | [SLC6A1](/genes/slc6a1) |
| UniProt ID | [P30531](https://www.uniprot.org/uniprot/P30531) |
| Protein Size | 599 amino acids (~63 kDa) |
| Subcellular Localization | Plasma membrane; presynaptic terminals |
| Protein Family | SLC6 family (Sodium:neurotransmitter symporters, SSS) |
| PDB Structures | [6WE7](https://www.ebi.ac.uk/pdbe/search/pdb/6WE7), [5U75](https://www.ebi.ac.uk/pdbe/search/pdb/5U75) |
SLC6A1 (GABA Transporter 1, GAT-1) is a sodium-dependent GABA transporter that regulates GABA signaling in the brain by reuptaking GABA into neurons and glia. It plays critical roles in inhibitory neurotransmission and is implicated in epilepsy and other neurological disorders.
SLC6A1 has the classic SLC6 transporter fold:
The transporter operates via the alternating access mechanism, transitioning between outward-facing and inward-facing conformations.
GAT-1 performs essential functions in GABAergic signaling:
GABA Reuptake: Clears GABA from the synaptic cleft after neurotransmission, terminating the signal[1].
GABA Recycling: Transport GABA back into presynaptic neurons for reuse or into glial cells for metabolism.
Maintenance of Inhibitory Tone: Precisely controls extracellular GABA levels to maintain proper inhibition.
Presynaptic Regulation: Regulates presynaptic GABA release through transporter activity.
Protection against Excitotoxicity: Prevents excessive extracellular GABA that could cause paradoxical excitation.
GAT-1 is a proven therapeutic target:
Note: GAT-1 inhibitors must be used carefully as excessive GABA elevation can cause paradoxical effects.
SLC6A1 interacts with:
The study of Slc6A1 Protein — Gaba Transporter 1 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.