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CSNK1E

Function

Casein kinases are operationally defined by their preferential utilization of acidic proteins such as caseins as substrates. Can phosphorylate a large number of proteins. Participates in Wnt signaling. Phosphorylates DVL1 and DVL2. Central component of the circadian clock. In balance with PP1, determines the circadian period length, through the regulation of the speed and rhythmicity of PER1 and PER2 phosphorylation. Controls PER1 and PER2 nuclear transport and degradation. Inhibits cytokine-induced granuloytic differentiation.

Post-translational modifications

Autophosphorylated. Partially dephosphorylated by PPP5C. May be dephosphorylated by PP1.

Sequence similarities

Belongs to the protein kinase superfamily. CK1 Ser/Thr protein kinase family. Casein kinase I subfamily.

Tissue specificity

Expressed in all tissues examined, including brain, heart, lung, liver, pancreas, kidney, placenta and skeletal muscle. Expressed in monocytes and lymphocytes but not in granulocytes.

Cellular localization

  • Cytoplasm
  • Nucleus

Alternative names

  • Casein kinase I isoform epsilon
  • CKI-epsilon
  • CKIe
  • CSNK1E

Target type

Proteins