Protein: Casein kinase I isoform alpha (CKI-alpha) (EC 2.7.11.1) (CK1) (P67827)
Organism: Bos taurus (Bovine)
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 CTNNB1 at 'Ser-45' (By similarity). May phosphorylate PER1 and PER2 (By similarity). May play a role in segregating chromosomes during mitosis. May play a role in keratin cytoskeleton disassembly and thereby, it may regulate epithelial cell migration (By similarity). Acts as an inhibitor of NLRP3 inflammasome assembly by mediating phosphorylation of NLRP3 (By similarity).
Subcellular location: Cytoplasm {ECO:0000250|UniProtKB:P48729}. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome {ECO:0000250|UniProtKB:P48729}. Chromosome, centromere, kinetochore {ECO:0000250|UniProtKB:P48729}. Nucleus speckle {ECO:0000250|UniProtKB:P48729}. Cytoplasm, cytoskeleton, cilium basal body {ECO:0000250|UniProtKB:Q8BK63}. Cytoplasm, cytoskeleton, spindle {ECO:0000250|UniProtKB:Q8BK63}. Note=Localizes to the centrosome in interphase cells, and to kinetochore fibers during mitosis. Also recruited to the keratin cytoskeleton. {ECO:0000250|UniProtKB:P48729}.
Sequence: MASSSGSKAEFIVGGKYKLVRKIGSGSFGDIYLAINITNGEEVAVKLESQKARHPQLLYESKLYKILQGGVGIPHIRWYGQEKDYNVLVMDLLGPSLEDLFNFCSRRFTMKTVLMLADQMISRIEYVHTKNFIHRDIKPDNFLMGIGRHCNKLFLIDFGLAKKYRDNRTRQHIPYREDKNLTGTARYASINAHLGIEQSRRDDMESLGYVLMYFNRTSLPWQGLKAATKKQKYEKISEKKMSTPVEVLCKGFPAEFAMYLNYCRGLRFEEAPDYMYLRQLFRILFRTLNHQYDYTFDWTMLKQKAAQQAASSSGQGQQAQTPTGF
InterPro domains: - IPR011009: Protein kinase-like domain superfamily (homologous_superfamily) [12-298]
- IPR008271: Serine/threonine-protein kinase, active site (active_site) [132-144]
- IPR050235: Casein Kinase 1 Ser/Thr Protein Kinase (family) [15-309]
- IPR017441: Protein kinase, ATP binding site (binding_site) [23-46]
- IPR000719: Protein kinase domain (domain) [17-285]
Interaction partners: - Glycogen synthase kinase-3 beta
- Axin-1
- Catenin beta-1
- Adenomatous polyposis coli protein
- Polyubiquitin-C
- Low-density lipoprotein receptor-related protein
- Annexin A11
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0003824 (catalytic activity), GO:0016740 (transferase activity), GO:0140096 (catalytic activity, acting on a protein), GO:0004672 (protein kinase activity), GO:0016772 (transferase activity, transferring phosphorus-containing groups), GO:0016773 (phosphotransferase activity, alcohol group as acceptor), GO:0004674 (protein serine/threonine kinase activity), GO:0016301 (kinase activity)
Biological Process (BP): GO:0008150 (biological process), GO:0008152 (metabolic process), GO:0009987 (cellular process), GO:0044237 (cellular metabolic process), GO:0071704 (organic substance metabolic process), GO:0044238 (primary metabolic process), GO:0006807 (nitrogen compound metabolic process), GO:1901564 (organonitrogen compound metabolic process), GO:0019538 (protein metabolic process), GO:0043170 (macromolecule metabolic process), GO:0006793 (phosphorus metabolic process), GO:0036211 (protein modification process), GO:0006796 (phosphate-containing compound metabolic process), GO:0043412 (macromolecule modification), GO:0006468 (protein phosphorylation), GO:0018193 (peptidyl-amino acid modification), GO:0016310 (phosphorylation), GO:0018105 (peptidyl-serine phosphorylation), GO:0018209 (peptidyl-serine modification)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0005737 (cytoplasm), GO:0016020 (membrane), GO:0012505 (endomembrane system), GO:0031090 (organelle membrane), GO:0005794 (Golgi apparatus), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0098588 (bounding membrane of organelle), GO:0000139 (Golgi membrane), GO:0043231 (intracellular membrane-bounded organelle)