Global phosphoproteomics reveal the diverse roles of casein kinase 1 in plant development

Protein phosphorylation is a major posttranslational modification carried out by protein kinases that constitute an integral part of complex signaling networks in eukaryotes. Casein kinase 1 (CK1) is a conserved serine/threonine protein kinase in eukaryotes and plays pivotal roles in both plants and mammals through phosphorylating various substrates.