The period of the circadian oscillator is primarily determined by the balance between casein kinase 1 and protein phosphatase 1.
Lee HM, Chen R, Kim H, Etchegaray JP, Weaver DR, Lee C. The period of the circadian oscillator is primarily determined by the balance between casein kinase 1 and protein phosphatase 1. Proc Natl Acad Sci U S A. 2011 Sep 27; 108(39):16451-6.