KCNQ1 (Potassium Channel, Alpha Subunit)

KCNQ1 is a gene that codes for a protein forming part of a potassium channel in cells, especially in the heart and other tissues. This channel helps regulate the flow of potassium ions in and out of cells, which is essential for maintaining healthy electrical activity and proper rhythm in the heart. When functioning properly, KCNQ1 ensures the heart beats normally. Mutations or problems with KCNQ1 can cause irregular heart rhythms or other health issues, such as Long QT syndrome, increasing the risk of fainting or sudden cardiac events.