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The KCNE2 K⁺ channel regulatory subunit: Ubiquitous influence, complex pathobiology.
1Bioelectricity Laboratory, Dept. of Pharmacology, School of Medicine, University of California, Irvine, CA, USA; Dept. of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA, USA.
Gene
|July 1, 2015
Summary
KCNE2 subunits regulate potassium channels and impact heart, stomach, thyroid, and choroid plexus functions. KCNE2 disruption causes diverse diseases, highlighting its complex physiological roles.
Area of Science:
- Molecular biology
- Physiology
- Genetics
Background:
- KCNE subunits are single-span transmembrane proteins regulating voltage-gated potassium channels.
- KCNE2 is implicated in Long QT syndrome and has diverse physiological roles.
- KCNE2 influences both excitable and non-excitable polarized epithelial cells.
Purpose of the Study:
- To review the current knowledge on KCNE2 function and pathobiology.
- To highlight the broad physiological influence and disease manifestations of KCNE2.
Main Methods:
- Physiological analyses
- Human and mouse genetics studies
- Review of existing literature
Main Results:
- KCNE2 regulates potassium channels in multiple organs including the heart, stomach, thyroid, and choroid plexus.
- KCNE2 disruption leads to varied disease manifestations, including cardiac arrhythmias.
- Kcne2 deletion in mice reveals the complexity of KCNE2's role in monogenic arrhythmia syndromes.
Conclusions:
- KCNE2 plays a critical role in mammalian physiology beyond its known cardiac functions.
- Understanding KCNE2's diverse roles is crucial for comprehending its associated pathologies.
- Further research into KCNE2 pathobiology is warranted given its complex involvement in human diseases.
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