KCNE gene family: From basic functions to diseases

Area of Science:

• Biophysics
• Molecular Biology
• Physiology

Background:

• KCNE subunits are single-span transmembrane proteins that modulate voltage-gated potassium (Kv) channel function.
• Kv channels are vital for electrical excitability and signal transduction in various tissues.
• KCNE-Kv channel interactions form complexes with unique properties, impacting physiological processes.

Purpose of the Study:

• To elucidate the roles of KCNE subunits in modulating Kv channel function across different organs.
• To review current research on KCNE-Kv channel interactions and their physiological significance.
• To provide recommendations for future research directions in this field.

Main Methods:

• Literature review of existing research on KCNE subunits and Kv channels.
• Analysis of studies detailing the biophysical and regulatory mechanisms of KCNE-Kv channel complexes.
• Synthesis of findings regarding the implications of KCNE gene mutations or altered expression.

Main Results:

• KCNE subunits significantly alter Kv channel kinetics, gating, and trafficking.
• Dysregulation of KCNE-Kv channel complexes is linked to various pathophysiological conditions, including cardiac arrhythmias and epilepsy.
• Emerging research highlights the dynamic and specific nature of KCNE-Kv channel interactions.

Conclusions:

• KCNE subunits are critical regulators of Kv channel function, essential for normal physiological processes.
• Altered KCNE function contributes to significant human diseases, underscoring their therapeutic potential.
• Further research into KCNE-Kv channel complexes will facilitate the development of targeted therapies for ion channelopathies.