Circadian rhythms are ~24-hour biological cycles that influence processes from immunity to metabolism, and this study explores how intracellular potassium contributes to their regulation. The authors show that potassium levels actively set the period and phase of clock gene rhythms and are essential for coupling circadian timing to cell-division cycles, making potassium an important regulator linking the circadian and cell cycles.
- Sergio Gil Rodríguez
- Louise L. Hansen
- Gerben van Ooijen