English: Posttranslational modification of human CK1δ. Identified posttranslational modifications of CK1δ TV1 are indicated at their reported positions. Because most modifications have been reported for the C-terminal domain, this domain is depictured in a stretched presentation compared to the kinase domain. In the case of phosphorylation the distinction is made between reports of low-throughput studies (LTP) and high-throughput studies (HTP). Autophosphorylated residues within the autoinhibitory domain are shown in red. Kinases identified to phosphorylate certain residues are indicated above the respective target site. Names of kinases are parenthesized in case final confirmation is pending. Information about detected ubiquitylation, acetylation, and methylation events is also provided, although up to now no specific functions have been linked to the observed modifications. The figure was created based on information provided for CK1δ by PhosphoSitePlus® (PMID: 25514926).