Kcnn3 Protein (Small Conductance Calcium Activated Potassium Channel 3) is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
:: infobox .infobox-protein
| KCNN3 Protein (Small Conductance Calcium-Activated Potassium Channel 3) | |
|---|---|
| Gene | KCNN3 |
| UniProt | Q9UGI0 |
| Molecular Weight | ~70 kDa |
| Subcellular Localization | Plasma membrane |
| Protein Family | Calcium-activated potassium channel family |
| Aliases | SK3, KCa2.3 |
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KCNN3 (SK3) is a small conductance calcium-activated potassium channel. It contains six transmembrane segments and forms tetramers. The channel is gated by intracellular calcium through calmodulin binding.
SK3 regulates:
KCNN3 is a candidate gene:
SK3 affects dopaminergic neuron activity and motor function.
Altered SK3 function contributes to hyperexcitability.
SK3 modulators are being explored for:
The study of Kcnn3 Protein (Small Conductance Calcium Activated Potassium Channel 3) 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.
Hille B. Ion Channels of Excitable Membranes. 3rd ed. Sunderland, MA: Sinauer Associates; 2001.
Raggenbass M. Overview of principal ion channels and receptors in the CNS. In: Reference Module in Biomedical Sciences. Elsevier; 2018.
Caterina MJ. Voltage-gated calcium channels. In: Encyclopedia of Biological Chemistry. 2013:701-705.
Yu FH, Catterall WA. Overview of the voltage-gated sodium channel family. Genome Biol. 2003;4(3):207.
Sharker SM, Hattori M. Structure and function of voltage-gated potassium channels. In: Alkondon M, ed. Potassium Channels. IntechOpen; 2019.
The KCNN3 Protein is a protein involved in various cellular processes in the nervous system. This protein plays important roles in neuronal function, signal transduction, and cellular homeostasis. Dysfunction of this protein has been implicated in neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis.
The KCNN3 Protein participates in multiple molecular pathways critical for neuronal health. It is expressed in various brain regions and cell types, where it contributes to synaptic transmission, membrane potential regulation, and intracellular signaling cascades.
Alterations in KCNN3 Protein expression or function have been associated with several neurodegenerative conditions. Research suggests that this protein may serve as a therapeutic target for disease modification in AD, PD, and related disorders.