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Details on Person UniProt:P48729 CSNK1A1

Class:IdReferenceGeneProduct:57867
_chainChangeLoginitiator methionine:1 added on Sat February 7 2015;chain:2-337 added on Sat February 7 2015;initiator methionine:1 for 57867 removed on Fri Nov 03 2023;initiator methionine: for 57867 added on Fri Nov 03 2023;initiator methionine: for 57867 removed on Fri Aug 15 2025;initiator methionine:1 for 57867 added on Fri Aug 15 2025
_displayNameUniProt:P48729 CSNK1A1
_timestamp2025-08-15 21:53:44
chaininitiator methionine:1
chain:2-337
checksum1B2085AE33CAFAC2
commentFUNCTION Casein kinases are operationally defined by their preferential utilization of acidic proteins such as caseins as substrates (PubMed:11955436, PubMed:1409656, PubMed:18305108, PubMed:23902688). It can phosphorylate a large number of proteins (PubMed:11955436, PubMed:1409656, PubMed:18305108, PubMed:23902688). Participates in Wnt signaling (PubMed:11955436). Phosphorylates CTNNB1 at 'Ser-45' (PubMed:11955436). May phosphorylate PER1 and PER2 (By similarity). May play a role in segregating chromosomes during mitosis (PubMed:1409656). May play a role in keratin cytoskeleton disassembly and thereby, it may regulate epithelial cell migration (PubMed:23902688). Acts as a positive regulator of mTORC1 and mTORC2 signaling in response to nutrients by mediating phosphorylation of DEPTOR inhibitor (PubMed:22017875, PubMed:22017877). Acts as an inhibitor of NLRP3 inflammasome assembly by mediating phosphorylation of NLRP3 (By similarity).CATALYTIC ACTIVITY L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+)CATALYTIC ACTIVITY L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+)SUBUNIT Interacts with the Axin complex (PubMed:11955436). Interacts with TUT1, leading to TUT1 phosphorylation (PubMed:1409656). Interacts with FAM83A, FAM83B, FAM83C, FAM83D, FAM83E, FAM83F, FAM83G and FAM83H (via DUF1669) (PubMed:29789297, PubMed:31338967). Interaction with FAM83H recruits CSNK1A1 to keratin filaments (PubMed:23902688).INTERACTION Localizes to the centrosome in interphase cells, and to kinetochore fibers during mitosis. Also recruited to the keratin cytoskeleton (PubMed:23902688).ALTERNATIVE PRODUCTS Phosphorylated by MTOR in response to mitogenic stimulation, leading to its activation.SIMILARITY Belongs to the protein kinase superfamily. CK1 Ser/Thr protein kinase family. Casein kinase I subfamily.
descriptionrecommendedName: Casein kinase I isoform alpha shortName: CKI-alpha ecNumber evidence="5"2.7.11.1 alternativeName: CK1
geneNameCSNK1A1
identifierP48729
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Alternative splicing
ATP-binding
Cell cycle
Cell division
Cell projection
Centromere
Chromosome
Cytoplasm
Cytoskeleton
Direct protein sequencing
Kinase
Kinetochore
Mitosis
Nucleotide-binding
Nucleus
Phosphoprotein
Proteomics identification
Reference proteome
Serine/threonine-protein kinase
Transferase
Wnt signaling pathway
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9862192] Weiser, Joel, 2024-02-26
[InstanceEdit:9917590] Weiser, Joel, 2024-08-09
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameCSNK1A1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8990785] ENSEMBL:ENSG00000113712 CSNK1A1 [Homo sapiens]
secondaryIdentifierKC1A_HUMAN
D3DQG0
D3DQG1
Q4JJA0
Q5U046
Q5U047
Q6FGA2
Q71TU5
Q96HD2
Q9UDK3
sequenceLength337
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:385411] UniProt:P48729-2 CSNK1A1 [Homo sapiens]
[ReferenceIsoform:404152] UniProt:P48729-1 CSNK1A1 [Homo sapiens]
[ReferenceIsoform:8970571] UniProt:P48729-3 CSNK1A1 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:195263] CSNK1A1 [cytosol] [Homo sapiens]
[EntityWithAccessionedSequence:5632507] CSNK1A1 [cilium] [Homo sapiens]
[EntityWithAccessionedSequence:9943726] CSNK1A1 [nucleoplasm] [Homo sapiens]
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