Scn3A Protein (Sodium Voltage Gated Channel Alpha Subunit 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
| SCN3A Protein (Sodium Voltage-Gated Channel Alpha Subunit 3) | |
|---|---|
| Gene | SCN3A |
| UniProt | Q9NY46 |
| Molecular Weight | ~220 kDa |
| Subcellular Localization | Plasma membrane |
| Protein Family | Voltage-gated sodium channel family |
| Aliases | Nav1.3 |
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SCN3A encodes the Nav1.3 sodium channel alpha subunit. It contains four homologous domains (I-IV), each with six transmembrane segments. The channel forms functional channels when associated with beta subunits.
Nav1.3 is primarily embryonic:
SCN3A mutations cause:
Nav1.3 contributes to:
Abnormal SCN3A expression affects cortical development.
Nav1.3 is a pain target:
The study of Scn3A Protein (Sodium Voltage Gated Channel Alpha Subunit 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 SCN3A 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 SCN3A 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 SCN3A 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.