InnateDB: Systems Biology of the Innate Immune Response

Mus musculus Protein: Csnk2a2

Summary

InnateDB Protein

IDBP-183823.6

Last Modified

2014-10-13 [Report errors or provide feedback]

Gene Symbol

Csnk2a2

Protein Name

casein kinase 2, alpha prime polypeptide

Synonyms

1110035J23Rik; C77789; CK2;

Species

Mus musculus

Ensembl Protein

ENSMUSP00000055919

InnateDB Gene

IDBG-183821 (Csnk2a2)

Protein Structure

UniProt Annotation

Function

Catalytic subunit of a constitutively active serine/threonine-protein kinase complex that phosphorylates a large number of substrates containing acidic residues C-terminal to the phosphorylated serine or threonine. Regulates numerous cellular processes, such as cell cycle progression, apoptosis and transcription, as well as viral infection. May act as a regulatory node which integrates and coordinates numerous signals leading to an appropriate cellular response. During mitosis, functions as a component of the p53/TP53-dependent spindle assembly checkpoint (SAC) that maintains cyclin-B-CDK1 activity and G2 arrest in response to spindle damage. Also required for p53/TP53-mediated apoptosis, phosphorylating 'Ser-392' of p53/TP53 following UV irradiation. Can also negatively regulate apoptosis. Phosphorylates the caspases CASP9 and CASP2 and the apoptotic regulator NOL3. Phosphorylation protects CASP9 from cleavage and activation by CASP8, and inhibits the dimerization of CASP2 and activation of CASP8. Regulates transcription by direct phosphorylation of RNA polymerases I, II, III and IV. Also phosphorylates and regulates numerous transcription factors including NF-kappa-B, STAT1, CREB1, IRF1, IRF2, ATF1, SRF, MAX, JUN, FOS, MYC and MYB. Phosphorylates Hsp90 and its co-chaperones FKBP4 and CDC37, which is essential for chaperone function. Regulates Wnt signaling by phosphorylating CTNNB1 and the transcription factor LEF1. Acts as an ectokinase that phosphorylates several extracellular proteins (By similarity). {ECO:0000250}.

Subcellular Localization

Disease Associations

Tissue Specificity

Comments

Interactions

Number of Interactions

This gene and/or its encoded proteins are associated with 13 experimentally validated interaction(s) in this database.
They are also associated with 61 interaction(s) predicted by orthology.

Experimentally validated
Total	13 [view]
Protein-Protein	13 [view]
Protein-DNA	0
Protein-RNA	0
DNA-DNA	0
RNA-RNA	0
DNA-RNA	0

Predicted by orthology
Total	61 [view]

Gene Ontology

Molecular Function

Accession	GO Term
GO:0004672	protein kinase activity
GO:0004674	protein serine/threonine kinase activity
GO:0004713	protein tyrosine kinase activity
GO:0005515	protein binding
GO:0005524	ATP binding
GO:0016772	transferase activity, transferring phosphorus-containing groups
GO:0047485	protein N-terminus binding

Biological Process

GO:0006351	transcription, DNA-templated
GO:0006355	regulation of transcription, DNA-templated
GO:0006468	protein phosphorylation
GO:0006915	apoptotic process
GO:0016055	Wnt signaling pathway
GO:0051726	regulation of cell cycle
GO:0071174	mitotic spindle checkpoint

Cellular Component

GO:0005634	nucleus
GO:0005956	protein kinase CK2 complex
GO:0031519	PcG protein complex

Protein Structure and Domains

PDB ID

MGI:88547

InterPro

IPR000719 Protein kinase domain
IPR001245 Serine-threonine/tyrosine-protein kinase catalytic domain
IPR002290 Serine/threonine- /dual specificity protein kinase, catalytic domain
IPR002575 Aminoglycoside phosphotransferase
IPR011009 Protein kinase-like domain
IPR020635 Tyrosine-protein kinase, catalytic domain

PFAM

PF00069
PF07714
PF01636

PRINTS

PR00109

PIRSF

SMART

SM00220
SM00219

TIGRFAMs

Post-translational Modifications

Modification

Cross-References

SwissProt