The cyanobacterial circadian clock typically includes a standard oscillator consisting of proteins KaiA, KaiB and KaiC, but some cyanobacteria have additional homologous proteins of unclear function. Here, the authors show that a KaiABC homolog system contributes, together with the canonical oscillator, to the control of circadian rhythms in the model cyanobacterium Synechocystis sp. PCC 6803.
- Christin Köbler
- Nicolas M. Schmelling
- Annegret Wilde
