Kcnb2 Protein (Potassium Voltage Gated Channel Subfamily B Member 2) 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
| KCNB2 Protein (Potassium Voltage-Gated Channel Subfamily B Member 2) | |
|---|---|
| Gene | KCNB2 |
| UniProt | Q9Y3V8 |
| Molecular Weight | ~97 kDa |
| Subcellular Localization | Plasma membrane |
| Protein Family | Voltage-gated potassium channel family |
| Aliases | Kv2.2, DRK1 |
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KCNB2 (Kv2.2) is a voltage-gated potassium channel alpha subunit. It contains six transmembrane segments (S1-S6) with a pore loop between S5 and S6. The channel forms homotetramers or heterotetramers with Kv2.1.
Kv2.2 regulates neuronal excitability:
KCNB2 mutations are associated with epilepsy:
Kv2.2 regulates insulin secretion from pancreatic beta-cells.
Kv2 channels are sensitive to ischemia and contribute to neuronal death.
KCNB2 modulators are being explored for:
The study of Kcnb2 Protein (Potassium Voltage Gated Channel Subfamily B Member 2) 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 KCNB2 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 KCNB2 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 KCNB2 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.