Tresk Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
This gene/protein plays important roles in neuronal function and is relevant to neurodegenerative disease research.
| TWIK-Related Spinal Cord Potassium Channel (TRESK) | |
|---|---|
| Protein Name | TRESK (K2P18.1) |
| Gene | KCNK18 |
| UniProt ID | Q7RTX1 |
| PDB Structures | 3WAE, 4RUE |
| Molecular Weight | ~40 kDa |
| Subcellular Localization | Plasma membrane (sensory neurons) |
| Protein Family | Two-pore domain potassium channel (K2P) family |
TRESK is a two-pore domain potassium channel with four transmembrane segments and two pore domains. It has an unusual cleavage in the first extracellular loop that generates two fragments that remain functional. The channel forms homodimers and is uniquely sensitive to intracellular calcium through calcineurin activation.
TRESK is highly expressed in sensory neurons including trigeminal ganglion neurons, dorsal root ganglia, and spinal cord. It regulates neuronal excitability and pain signaling. The channel is activated by intracellular calcium through calcineurin, providing a link between calcium signaling and membrane excitability. TRESK contributes to the resting membrane potential and modulates action potential firing.
| Disease | Role | Mechanism |
|---|---|---|
| Migraine | Pathogenic | Loss-of-function increases trigeminal neuron excitability |
| Epilepsy | Risk factor | Altered neuronal excitability |
| Neuropathic Pain | Risk factor | Sensory neuron dysfunction |
The study of Tresk Protein 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.