KCNA10 Protein - Potassium Voltage-Gated Channel Subfamily A Member 10
Introduction
Kcna10 Protein Kv1.10 Potassium Channel is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
KCNA10 (Potassium Voltage-Gated Channel Subfamily A Member 10) is a voltage-gated potassium channel protein that plays essential roles in neuronal excitability, cardiac function, and cellular repolarization. This channel belongs to the Shaker-like Kv1 family, characterized by six transmembrane domains and a pore-forming region. KCNA10 is unique among neuronal potassium channels due to its functional expression in both neuronal and cardiac tissues, making it particularly relevant for understanding excitability disorders.
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KCNA10 Protein - Potassium Voltage-Gated Channel Subfamily A Member 10
Introduction
Kcna10 Protein Kv1.10 Potassium Channel is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
KCNA10 (Potassium Voltage-Gated Channel Subfamily A Member 10) is a voltage-gated potassium channel protein that plays essential roles in neuronal excitability, cardiac function, and cellular repolarization. This channel belongs to the Shaker-like Kv1 family, characterized by six transmembrane domains and a pore-forming region. KCNA10 is unique among neuronal potassium channels due to its functional expression in both neuronal and cardiac tissues, making it particularly relevant for understanding excitability disorders.
Function
Potassium Channel Activity
KCNA10 forms homomeric or heteromeric voltage-gated potassium channels that:
Mediate fast repolarization: Enable rapid potassium efflux during action potential repolarization
Set resting membrane potential: Contribute to establishing negative resting membrane potentials
Regulate firing frequency: Control neuronal firing rates through afterhyperpolarization
Shape action potential: Influence action potential duration and waveform
Tissue-Specific Functions
Neuronal Function
In [neurons](/entities/neurons), KCNA10 contributes to:
[Action potential](/mechanisms/action-potential) repolarization in [motor neurons](/cell-types/motor-neurons) and [sensory neurons](/cell-types/sensory-neurons)
[Synaptic integration](/mechanisms/synaptic-integration) by modulating input resistance
[Neurotransmitter release](/mechanisms/neurotransmitter-release) through regulation of presynaptic excitability
[Dendritic signal processing](/mechanisms/dendritic-integration)
Cardiac Function
In cardiac tissue:
Contributes to ventricular repolarization
Helps prevent early afterdepolarizations
Protects against certain arrhythmias
Regulation
KCNA10 channel activity is modulated by:
Voltage: Classical voltage-dependent activation
Phosphorylation: PKA and PKC-mediated modulation
Protein interactions: Association with Kv beta subunits and other regulatory proteins
Cellular signaling: Modulation by second messenger systems
Role in Disease
Neurological Disorders
Dysregulation of KCNA10 is implicated in:
Epilepsy: Altered Kv1 channel function affects neuronal excitability thresholds
Migraine: Vascular potassium channels may influence cortical spreading depression
Neuropathic pain: KCNA10 in nociceptors modulates pain signaling
[Parkinson's Disease](/diseases/parkinsons-disease): Possible involvement in basal ganglia excitability
Cardiovascular Disorders
Cardiac arrhythmias: KCNA10 variants may contribute to long QT syndrome
The study of Kcna10 Protein Kv1.10 Potassium Channel 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.
Brain Atlas Resources
[Allen Human Brain Atlas — KCNA10 Expression](https://human.brain-map.org/microarray/search/show?search_term=KCNA10): Protein expression data in human brain
[Allen Mouse Brain Atlas — KCNA10](https://mouse.brain-map.org/search/show?search_term=KCNA10): Mouse brain expression data
References
[Gutman et al., International Union of Pharmacology (2005) (2005)](https://doi.org/10.1152/physrev.00002.2005)
[Coetzee et al., Molecular diversity of K+ channels (1999) (1999)](https://doi.org/10.1111/j.1469-7793.1999.00369.x)