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Protein

Casein kinase II subunit alpha'

Gene

CSNK2A2

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

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).By similarity

Catalytic activityi

ATP + a protein = ADP + a phosphoprotein.

Enzyme regulationi

Constitutively active protein kinase whose activity is not directly affected by phosphorylation. Seems to be regulated by level of expression and localization (By similarity).By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei69ATPPROSITE-ProRule annotation1
Active sitei157Proton acceptorPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi46 – 54ATPPROSITE-ProRule annotation9

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Kinase, Serine/threonine-protein kinase, Transferase

Keywords - Biological processi

Apoptosis, Cell cycle, Transcription, Transcription regulation, Wnt signaling pathway

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDAi2.7.11.1. 908.

Names & Taxonomyi

Protein namesi
Recommended name:
Casein kinase II subunit alpha' (EC:2.7.11.1)
Short name:
CK II alpha'
Gene namesi
Name:CSNK2A2
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Unplaced

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000858901 – 350Casein kinase II subunit alpha'Add BLAST350

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei13PhosphotyrosineBy similarity1
Modified residuei18PhosphoserineBy similarity1
Modified residuei21PhosphoserineBy similarity1
Modified residuei97N6-acetyllysineBy similarity1
Modified residuei288PhosphoserineBy similarity1

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiP20427.
PRIDEiP20427.

Expressioni

Gene expression databases

BgeeiENSBTAG00000013784.

Interactioni

Subunit structurei

Heterotetramer composed of two catalytic subunits (alpha chain and/or alpha' chain) and two regulatory subunits (beta chains). The tetramer can exist as a combination of 2 alpha/2 beta, 2 alpha'/2 beta or 1 alpha/1 alpha'/2 beta subunits. Also part of a CK2-SPT16-SSRP1 complex composed of SSRP1, SUPT16H, CSNK2A1, CSNK2A2 and CSNK2B, which forms following UV irradiation. Interacts with RNPS1. Interacts with CSNKA2IP (via C-terminus).By similarity

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000018322.

Structurei

3D structure databases

ProteinModelPortaliP20427.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini40 – 325Protein kinasePROSITE-ProRule annotationAdd BLAST286

Sequence similaritiesi

Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. CK2 subfamily.PROSITE-ProRule annotation
Contains 1 protein kinase domain.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG0668. Eukaryota.
ENOG410XNPP. LUCA.
HOGENOMiHOG000233021.
HOVERGENiHBG107282.
InParanoidiP20427.
KOiK03097.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
[Graphical view]
SMARTiSM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 1 hit.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P20427-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPGPAARSRA RVYAEVNSLR SREYWDYEAH VPSWGNQDDY QLVRKLGRGK
60 70 80 90 100
YSEVFEAINI TNNERVVVKI LKPVKKKKIK REVKILENLR GGTNIIKLID
110 120 130 140 150
TVKDPVSKTP ALVFEYINNT DFKQLYQILT DFDIRFYMYE LLKALDYCHS
160 170 180 190 200
KGIMHRDVKP HNVMIDHQQK KLRLIDWGLA EFYHPAQEYN VRVASRYFKG
210 220 230 240 250
PELLVDYQMY DYSLDMWSLG CMLASMIFRK EPFFHGQDNY DQLVRIAKVL
260 270 280 290 300
GTDELYGYLK KYHIDLDPHF NDILGQHSRK RWENFIHSEN RHLVSPEALD
310 320 330 340 350
LLDKLLRYDH QQRLTAKEAM EHPYFYPVVK EQSQPCADNA VLSSGLTAAR
Length:350
Mass (Da):41,270
Last modified:November 1, 1995 - v3
Checksum:i7C54110BEC0A89C3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D17712 mRNA. Translation: BAA04567.1.
D90394 mRNA. Translation: BAA14392.1.
PIRiB35206.
PS0166.
RefSeqiNP_777061.1. NM_174636.2.
UniGeneiBt.1408.

Genome annotation databases

GeneIDi282420.
KEGGibta:282420.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D17712 mRNA. Translation: BAA04567.1.
D90394 mRNA. Translation: BAA14392.1.
PIRiB35206.
PS0166.
RefSeqiNP_777061.1. NM_174636.2.
UniGeneiBt.1408.

3D structure databases

ProteinModelPortaliP20427.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000018322.

Proteomic databases

PaxDbiP20427.
PRIDEiP20427.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi282420.
KEGGibta:282420.

Organism-specific databases

CTDi1459.

Phylogenomic databases

eggNOGiKOG0668. Eukaryota.
ENOG410XNPP. LUCA.
HOGENOMiHOG000233021.
HOVERGENiHBG107282.
InParanoidiP20427.
KOiK03097.

Enzyme and pathway databases

BRENDAi2.7.11.1. 908.

Gene expression databases

BgeeiENSBTAG00000013784.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
[Graphical view]
SMARTiSM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 1 hit.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiCSK22_BOVIN
AccessioniPrimary (citable) accession number: P20427
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 1, 1991
Last sequence update: November 1, 1995
Last modified: October 5, 2016
This is version 127 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Miscellaneous

Can use both ATP and GTP as phosphoryl donors. Phosphorylation by casein kinase 2 has been estimated to represent up to one quarter of the eukaryotic phosphoproteome.

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.