Abcam, ab65794, Anti-Kv4.3/KCND3 antibody

Size: 100µL
Rabbit Polyclonal Kv4.3/KCND3 antibody. Suitable for WB, IHC-P, IHC-Fr and reacts with Human samples. Cited in 4 publications.
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Human,
Applications:IHC-P, IHC-Fr, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:The exact immunogen used to generate this antibody is proprietary information.

Properties and Storage Information:
Form-Liquid, Purity-Whole antiserum, Storage buffer-Constituents: Whole serum, Shipped at conditions-Blue Ice, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
Kv4.3 also known as KCND3 is a voltage-gated potassium channel subunit with an important role in membrane repolarization. This protein with a mass of approximately 71 kDa is extensively expressed in the heart and brain. Kv4.3 contributes to the formation of transient outward potassium currents (Ito) that are essential for shaping the action potentials in neurons and cardiac myocytes. These currents help in the rapid repolarization phase that restores the resting membrane potential after depolarization.
Biological function summary
Kv4.3 influences electrical signaling and cellular excitability in the cardiovascular and nervous systems. It often forms complexes with auxiliary subunits such as KChIP1-4 (Kv channel-interacting proteins) which modulate its current properties and localization. In neurons Kv4.3 helps regulate firing patterns while in cardiac tissue it affects heart rate and contractility. The presence of these complexes ensures precise control of channel function fitting the specific needs of tissue type and physiological condition.
Pathways
Kv4.3 integrates into critical signaling networks that involve ion homeostasis and action potential propagation. It belongs to the pathway that manages membrane potential dynamics interacting with proteins like Kv4.2 and Kv2.1 as part of a broader set of voltage-gated potassium channels. This network plays a role in the Wnt signaling pathway impacting cellular processes such as cell cycle regulation and differentiation.
Kv4.3 has been linked with cardiac arrhythmias and neurological disorders. Altered Kv4.3 functionality can lead to improper cardiac electrical activity resulting in arrhythmic events such as Long QT Syndrome. In the brain aberrations in Kv4.3 channel activity can correlate with epilepsy where disrupted ion channel regulation triggers excessive neuronal firing. Its involvement in these conditions highlights its participation in concert with other related proteins like SCN5A in cardiac tissues and CACNA1H in neuronal contexts.