Site-specific phosphorylation of casein kinase 1 δ (CK1δ) regulates its activity towards the circadian regulator PER2 Eng, Gracie Wee Ling ; Edison ; Virshup, David M. Abstract Publication: PLoS ONE Pub Date: May 2017 DOI: 10.1371/journal.pone.0177834 Bibcode: 2017PLoSO..1277834E