CK1 alpha also known as Casein Kinase I alpha, CK1, CSNK1A1 is a member of the protein kinase superfamily. CK1 alpha plays a crucial role in several cellular processes, including the regulation of the Wnt signaling pathway, which is vital for cell proliferation and differentiation. CK1 alpha is primarily located in the cytoplasm, where CK1 alpha is involved in the phosphorylation of various substrates, thereby influencing key signaling pathways that govern cellular functions such as DNA repair, circadian rhythms, and apoptosis. Casein kinase I alpha′s ability to modulate these pathways underscores CK1 alpha′s importance in maintaining cellular homeostasis and potential implications in various diseases, including cancer and neurodegenerative disorders.