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Center for Computational Systems Medicine
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Protein Summary

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AS Summary

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Protein Functional Features

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Gene Isoform Structures and Expression Levels

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Protein Structures

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pLDDT Score Distribution

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Ramachandran Plot of Protein Structures

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Potential Active Site Information

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Protein Structure and Feature Comparision

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Protein-Protein Interaction

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Related Drugs

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Related Diseases

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Clinically Important Variants

Protein:CSNK2A1

Protein Summary

check button Gene summary
Gene name: CSNK2A1
ASpdb.0 ID: 1457
Gene
Gene symbol

CSNK2A1

Gene ID

1457

Gene namecasein kinase 2 alpha 1
SynonymsCK2A1|CKII|Cka1|Cka2|OCNDS
Cytomap

20p13

Type of geneprotein-coding
Descriptioncasein kinase II subunit alphaCK2 catalytic subunit alphacasein kinase 2, alpha 1 polypeptidecasein kinase II alpha 1 polypeptide pseudogenecasein kinase II alpha 1 subunitprotein kinase CK2
Modification date20240413
UniProtAcc

P68400


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneCSNK2A1

GO:0004674

protein serine/threonine kinase activity

12700239|15723517|16193064|18411307|18583988|18678890|20545769|20625391|20864032|21482717|22017874|22184066|22325354|23123191|28512243|30699359|30765518|30898438|31439799|35597237

GeneCSNK2A1

GO:0005634

nucleus

21282530|23123191

GeneCSNK2A1

GO:0005654

nucleoplasm

-

GeneCSNK2A1

GO:0005956

protein kinase CK2 complex

15723517

GeneCSNK2A1

GO:0006302

double-strand break repair

22325354

GeneCSNK2A1

GO:0006468

protein phosphorylation

18548200|20625391|22406621

GeneCSNK2A1

GO:0006974

DNA damage response

20545769|30898438|35597237

GeneCSNK2A1

GO:0008284

positive regulation of cell population proliferation

20625391

GeneCSNK2A1

GO:0016301

kinase activity

18548200

GeneCSNK2A1

GO:0016605

PML body

20719947

GeneCSNK2A1

GO:0017148

negative regulation of translation

30765518|31439799

GeneCSNK2A1

GO:0018105

peptidyl-serine phosphorylation

28031292|30699359

GeneCSNK2A1

GO:0018107

peptidyl-threonine phosphorylation

15723517

GeneCSNK2A1

GO:0030307

positive regulation of cell growth

20625391

GeneCSNK2A1

GO:0031519

PcG protein complex

21282530

GeneCSNK2A1

GO:0045732

positive regulation of protein catabolic process

20625391

GeneCSNK2A1

GO:0050821

protein stabilization

22184066

GeneCSNK2A1

GO:0070822

Sin3-type complex

17827154

GeneCSNK2A1

GO:0075342

symbiont-mediated disruption of host cell PML body

20719947

GeneCSNK2A1

GO:1905337

positive regulation of aggrephagy

22017874

GeneCSNK2A1

GO:2000042

negative regulation of double-strand break repair via homologous recombination

28512243



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P68400-1P68400-1_1jwh_A.pdb1JWHX-ray3.1A2337

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P68400CSNK2A1P68400-1P68400-23912551136Deletionnonenone00

check buttonMultiple sequence alignment of our canonical and alternatively spliced CSNK2A1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of CSNK2A1
UniProt-idENSGENSTENSP
P68400-1ENSG00000101266.19ENST00000217244.9ENSP00000217244.3
P68400-1ENSG00000101266.19ENST00000400217.7ENSP00000383076.2
P68400-1ENSG00000101266.19ENST00000643660.1ENSP00000495248.1
P68400-1ENSG00000101266.19ENST00000645623.1ENSP00000495998.1
P68400-1ENSG00000101266.19ENST00000646305.1ENSP00000495902.1
P68400-1ENSG00000101266.19ENST00000646561.1ENSP00000496569.1
P68400-1ENSG00000101266.19ENST00000646814.1ENSP00000495422.1
P68400-1ENSG00000101266.19ENST00000647348.1ENSP00000495912.1
P68400-2ENSG00000101266.19ENST00000349736.10ENSP00000339247.6
P68400-2ENSG00000101266.19ENST00000644003.1ENSP00000495387.1
P68400-2ENSG00000101266.19ENST00000646477.1ENSP00000495439.1

UniProt-idNM IDNP ID
P68400-1NM_001895.3NP_001886.1
P68400-1NM_177559.2NP_808227.1
P68400-2NM_177560.2NP_808228.1

check buttonAmino acid sequences of our canonical and alternatively spliced CSNK2A1
accession_idProtein sequence
P68400-1MSGPVPSRARVYTDVNTHRPREYWDYESHVVEWGNQDDYQLVRKLGRGKYSEVFEAINITNNEKVVVKILKPVKKKKIKREIKILENLRG
GPNIITLADIVKDPVSRTPALVFEHVNNTDFKQLYQTLTDYDIRFYMYEILKALDYCHSMGIMHRDVKPHNVMIDHEHRKLRLIDWGLAE
FYHPGQEYNVRVASRYFKGPELLVDYQMYDYSLDMWSLGCMLASMIFRKEPFFHGHDNYDQLVRIAKVLGTEDLYDYIDKYNIELDPRFN
DILGRHSRKRWERFVHSENQHLVSPEALDFLDKLLRYDHQSRLTAREAMEHPYFYTVVKDQARMGSSSMPGGSTPVSSANMMSGISSVPT
P68400-2MYEILKALDYCHSMGIMHRDVKPHNVMIDHEHRKLRLIDWGLAEFYHPGQEYNVRVASRYFKGPELLVDYQMYDYSLDMWSLGCMLASMI
FRKEPFFHGHDNYDQLVRIAKVLGTEDLYDYIDKYNIELDPRFNDILGRHSRKRWERFVHSENQHLVSPEALDFLDKLLRYDHQSRLTAR

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
CSNK2A1 (go to UniProt):P68400

check buttonRetention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at

download page

* Minus value of BPloci means that the break pointn is located before the CDS.
- Retained protein feature among the 13 regional features.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P68400Domain39324Note=Protein kinase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00159Type=Deletion;Start=1;End=136
P68400Region3641Note=Interaction with beta subunit;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Deletion;Start=1;End=136


Gene Isoform Structures and Expression Levels for CSNK2A1

check buttonGene structures of our canonical and alternative spliced genes of CSNK2A1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of CSNK2A1

check button Expression levels of gene isoforms across GTEx.
gtex expression

check button Expression levels of gene isoforms across TCGA.
tcga expression


Protein Structures

check button PDB and CIF files of the predicted protein structures
* Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format.
3D view using mol* of P68400-1
3D view using mol* of P68400-2


pLDDT Score Distribution

check button pLDDT score distribution of the predicted protein structures from AlphaFold2
* AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100.
pLDDT distribution across the protein length of P68400-1
all structure
pLDDT distribution across the protein length of P68400-2
all structure


Ramachandran Plot of Protein Structures


check button Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide.
Ramachandran plot of P68400-1
all structure
Ramachandran plot of P68400-2
all structure

Potential Active Site Information


check button The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite.
UniProt-idSite scoreSizeD scoreVolumeExposureEnclosureContactPhobicPhilicBalanceDon/AccResidues
P68400-11.0332071.05542.9690.5120.7470.9981.0281.0380.990.71643,45,46,48,49,50,51,53,66,68,70,73,77,78,80,81,85
,95,113,114,115,116,117,118,119,120,121,125,156,15
8,159,160,161,162,163,164,174,175,176,177,178,191,
193,194,195,198
P68400-20.743430.4797.7550.5380.6911.0260.0761.720.0441.15854,55,62,66,67,68,69,102,103,128,129,130,133

Protein Structure and Feature Comparision


check button Protein Structure Comparision Using Template Modeling Scores (TM-score).
all structure

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green)
3D view using mol* of P68400-1_P68400-1_1jwh_A.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P68400-1_1jwh_A_P68400-2.pdb

check button Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green)
3D view using mol* of P68400-1_P68400-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P68400-1_vs_P68400-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P68400-1_vs_P68400-2.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
P68400Region3641Note=Interaction with beta subunit;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Deletion;Start=1;End=136


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to CSNK2A1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P68400CSNK2A1DB083532-(CYCLOHEXYLMETHYLAMINO)-4-(PHENYLAMINO)PYRAZOLO[1,5-A][1,3,5]TRIAZINE-8-CARBONITRILEexperimental
P68400CSNK2A1DB08340N,N'-DIPHENYLPYRAZOLO[1,5-A][1,3,5]TRIAZINE-2,4-DIAMINEexperimental
P68400CSNK2A1DB083542-(4-CHLOROBENZYLAMINO)-4-(PHENYLAMINO)PYRAZOLO[1,5-A][1,3,5]TRIAZINE-8-CARBONITRILEexperimental
P68400CSNK2A1DB08660Quinalizarinexperimental
P68400CSNK2A1DB00171ATPinvestigational, nutraceutical
P68400CSNK2A1DB039245,8-Di-Amino-1,4-Dihydroxy-Anthraquinoneexperimental
P68400CSNK2A1DB07715Emodininvestigational
P68400CSNK2A1DB083602-(4-ETHYLPIPERAZIN-1-YL)-4-(PHENYLAMINO)PYRAZOLO[1,5-A][1,3,5]TRIAZINE-8-CARBONITRILEexperimental
P68400CSNK2A1DB0833819-(cyclopropylamino)-4,6,7,15-tetrahydro-5H-16,1-(azenometheno)-10,14-(metheno)pyrazolo[4,3-o][1,3,9]triazacyclohexadecin-8(9H)-oneexperimental
P68400CSNK2A1DB01765(5-hydroxyindolo[1,2-a]quinazolin-7-yl)acetic acidexperimental
P68400CSNK2A1DB08846Ellagic acidinvestigationalinhibitor
P68400CSNK2A1DB04719DIMETHYL-(4,5,6,7-TETRABROMO-1H-BENZOIMIDAZOL-2-YL)-AMINEexperimental
P68400CSNK2A1DB12010Fostamatinibapproved, investigationalinhibitor
P68400CSNK2A1DB04395Phosphoaminophosphonic Acid-Adenylate Esterexperimental
P68400CSNK2A1DB030351,8-Di-Hydroxy-4-Nitro-Anthraquinoneexperimental
P68400CSNK2A1DB03127Benzamidineexperimental
P68400CSNK2A1DB021701,8-Di-Hydroxy-4-Nitro-Xanthen-9-Oneexperimental
P68400CSNK2A1DB08473Dichlororibofuranosylbenzimidazoleexperimental
P68400CSNK2A1DB04216Quercetinexperimental, investigational
P68400CSNK2A1DB083454-(2-(1H-IMIDAZOL-4-YL)ETHYLAMINO)-2-(PHENYLAMINO)PYRAZOLO[1,5-A][1,3,5]TRIAZINE-8-CARBONITRILEexperimental
P68400CSNK2A1DB04720S-METHYL-4,5,6,7-TETRABROMO-BENZIMIDAZOLEexperimental
P68400CSNK2A1DB04462Tetrabromo-2-Benzotriazoleexperimental
P68400CSNK2A1DB08362N-(3-(8-CYANO-4-(PHENYLAMINO)PYRAZOLO[1,5-A][1,3,5]TRIAZIN-2-YLAMINO)PHENYL)ACETAMIDEexperimental
P68400CSNK2A1DB078023,8-DIBROMO-7-HYDROXY-4-METHYL-2H-CHROMEN-2-ONEexperimental
P68400CSNK2A1DB02709Resveratrolinvestigational
P68400CSNK2A1DB04721N1,N2-ETHYLENE-2-METHYLAMINO-4,5,6,7-TETRABROMO-BENZIMIDAZOLEexperimental

Related Diseases to CSNK2A1


check button Previous studies relating to the alternative splicing of CSNK2A1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term
CSNK2A111038365A novel casein kinase 2 alpha-subunit regulates membrane protein traffic in the human hepatoma cell line HuH-7."A previously isolated endocytic trafficking mutant (TRF1) isolated from HuH-7 cells is defective in the distribution of subpopulations of cell-surface receptors for asialoorosomucoid (asialoglycoprotein receptor (ASGR)), transferrin, and mannose-terminating glycoproteins. The pleiotropic phenotype of TRF1 also includes an increased sensitivity to Pseudomonas toxin and deficient assembly and function of gap junctions. HuH-7xTRF1 hybrids exhibited a normal subcellular distribution of ASGR, consistent with the TRF1 mutation being recessive. A cDNA expression library derived from HuH-7 mRNA was transfected into TRF1 cells, which were subsequently selected for resistance to Pseudomonas toxin. Sequence analysis of a recovered cDNA revealed a unique isoform of casein kinase 2 (CK2), CK2alpha"". Western blot analysis of TRF1 proteins revealed a 60% reduction in total CK2alpha expression. Consistent with this finding, the hybrids HuH-7xHuH-7 and HuH-7xTRF1 expressed equivalent amounts of total CK2alpha. Immunoblots using antibodies against peptides unique to the previously described CK2 isoforms CK2alpha and CK2alpha' and the novel CK2alpha"" isoform showed that, although TRF1 and parental HuH-7 cells expressed comparable amounts of CK2alpha and CK2alpha', the mutant did not express CK2alpha"". Based on the genomic DNA sequence, RNA transcripts encoding CK2alpha"" apparently originate from alternative splicing of a primary transcript. Protein overexpression following transfection of TRF1 cells with cDNAs encoding either CK2alpha or the newly cloned CK2alpha"" restored the parental HuH-7 phenotype, including Pseudomonas toxin resistance, cell-surface ASGR binding activity, phosphorylation, and the assembly of gap junctions. This study suggests that HuH-7 cells express at least three CK2alpha isoforms and that the pleiotropic TRF1 phenotype is a consequence of a reduction in total CK2 expression."D006528Carcinoma, Hepatocellular
CSNK2A111038365A novel casein kinase 2 alpha-subunit regulates membrane protein traffic in the human hepatoma cell line HuH-7."A previously isolated endocytic trafficking mutant (TRF1) isolated from HuH-7 cells is defective in the distribution of subpopulations of cell-surface receptors for asialoorosomucoid (asialoglycoprotein receptor (ASGR)), transferrin, and mannose-terminating glycoproteins. The pleiotropic phenotype of TRF1 also includes an increased sensitivity to Pseudomonas toxin and deficient assembly and function of gap junctions. HuH-7xTRF1 hybrids exhibited a normal subcellular distribution of ASGR, consistent with the TRF1 mutation being recessive. A cDNA expression library derived from HuH-7 mRNA was transfected into TRF1 cells, which were subsequently selected for resistance to Pseudomonas toxin. Sequence analysis of a recovered cDNA revealed a unique isoform of casein kinase 2 (CK2), CK2alpha"". Western blot analysis of TRF1 proteins revealed a 60% reduction in total CK2alpha expression. Consistent with this finding, the hybrids HuH-7xHuH-7 and HuH-7xTRF1 expressed equivalent amounts of total CK2alpha. Immunoblots using antibodies against peptides unique to the previously described CK2 isoforms CK2alpha and CK2alpha' and the novel CK2alpha"" isoform showed that, although TRF1 and parental HuH-7 cells expressed comparable amounts of CK2alpha and CK2alpha', the mutant did not express CK2alpha"". Based on the genomic DNA sequence, RNA transcripts encoding CK2alpha"" apparently originate from alternative splicing of a primary transcript. Protein overexpression following transfection of TRF1 cells with cDNAs encoding either CK2alpha or the newly cloned CK2alpha"" restored the parental HuH-7 phenotype, including Pseudomonas toxin resistance, cell-surface ASGR binding activity, phosphorylation, and the assembly of gap junctions. This study suggests that HuH-7 cells express at least three CK2alpha isoforms and that the pleiotropic TRF1 phenotype is a consequence of a reduction in total CK2 expression."D008113Liver Neoplasms
CSNK2A124711643Identifying biological pathways that underlie primordial short stature using network analysis.Mutations in CUL7, OBSL1 and CCDC8, leading to disordered ubiquitination, cause one of the commonest primordial growth disorders, 3-M syndrome. This condition is associated with i) abnormal p53 function, ii) GH and/or IGF1 resistance, which may relate to failure to recycle signalling molecules, and iii) cellular IGF2 deficiency. However the exact molecular mechanisms that may link these abnormalities generating growth restriction remain undefined. In this study, we have used immunoprecipitation/mass spectrometry and transcriptomic studies to generate a 3-M 'interactome', to define key cellular pathways and biological functions associated with growth failure seen in 3-M. We identified 189 proteins which interacted with CUL7, OBSL1 and CCDC8, from which a network including 176 of these proteins was generated. To strengthen the association to 3-M syndrome, these proteins were compared with an inferred network generated from the genes that were differentially expressed in 3-M fibroblasts compared with controls. This resulted in a final 3-M network of 131 proteins, with the most significant biological pathway within the network being mRNA splicing/processing. We have shown using an exogenous insulin receptor (INSR) minigene system that alternative splicing of exon 11 is significantly changed in HEK293 cells with altered expression of CUL7, OBSL1 and CCDC8 and in 3-M fibroblasts. The net result is a reduction in the expression of the mitogenic INSR isoform in 3-M syndrome. From these preliminary data, we hypothesise that disordered ubiquitination could result in aberrant mRNA splicing in 3-M; however, further investigation is required to determine whether this contributes to growth failure.D004392Dwarfism
CSNK2A124711643Identifying biological pathways that underlie primordial short stature using network analysis.Mutations in CUL7, OBSL1 and CCDC8, leading to disordered ubiquitination, cause one of the commonest primordial growth disorders, 3-M syndrome. This condition is associated with i) abnormal p53 function, ii) GH and/or IGF1 resistance, which may relate to failure to recycle signalling molecules, and iii) cellular IGF2 deficiency. However the exact molecular mechanisms that may link these abnormalities generating growth restriction remain undefined. In this study, we have used immunoprecipitation/mass spectrometry and transcriptomic studies to generate a 3-M 'interactome', to define key cellular pathways and biological functions associated with growth failure seen in 3-M. We identified 189 proteins which interacted with CUL7, OBSL1 and CCDC8, from which a network including 176 of these proteins was generated. To strengthen the association to 3-M syndrome, these proteins were compared with an inferred network generated from the genes that were differentially expressed in 3-M fibroblasts compared with controls. This resulted in a final 3-M network of 131 proteins, with the most significant biological pathway within the network being mRNA splicing/processing. We have shown using an exogenous insulin receptor (INSR) minigene system that alternative splicing of exon 11 is significantly changed in HEK293 cells with altered expression of CUL7, OBSL1 and CCDC8 and in 3-M fibroblasts. The net result is a reduction in the expression of the mitogenic INSR isoform in 3-M syndrome. From these preliminary data, we hypothesise that disordered ubiquitination could result in aberrant mRNA splicing in 3-M; however, further investigation is required to determine whether this contributes to growth failure.D006130Growth Disorders
CSNK2A124711643Identifying biological pathways that underlie primordial short stature using network analysis.Mutations in CUL7, OBSL1 and CCDC8, leading to disordered ubiquitination, cause one of the commonest primordial growth disorders, 3-M syndrome. This condition is associated with i) abnormal p53 function, ii) GH and/or IGF1 resistance, which may relate to failure to recycle signalling molecules, and iii) cellular IGF2 deficiency. However the exact molecular mechanisms that may link these abnormalities generating growth restriction remain undefined. In this study, we have used immunoprecipitation/mass spectrometry and transcriptomic studies to generate a 3-M 'interactome', to define key cellular pathways and biological functions associated with growth failure seen in 3-M. We identified 189 proteins which interacted with CUL7, OBSL1 and CCDC8, from which a network including 176 of these proteins was generated. To strengthen the association to 3-M syndrome, these proteins were compared with an inferred network generated from the genes that were differentially expressed in 3-M fibroblasts compared with controls. This resulted in a final 3-M network of 131 proteins, with the most significant biological pathway within the network being mRNA splicing/processing. We have shown using an exogenous insulin receptor (INSR) minigene system that alternative splicing of exon 11 is significantly changed in HEK293 cells with altered expression of CUL7, OBSL1 and CCDC8 and in 3-M fibroblasts. The net result is a reduction in the expression of the mitogenic INSR isoform in 3-M syndrome. From these preliminary data, we hypothesise that disordered ubiquitination could result in aberrant mRNA splicing in 3-M; however, further investigation is required to determine whether this contributes to growth failure.D009123Muscle Hypotonia


Clinically important variants in CSNK2A1


check button (ClinVar, 04/20/2024)
accession_iduniprot_idgene_nameTypeVariantClinical_significance