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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:PLK4

Protein Summary

check button Gene summary
Gene name: PLK4
ASpdb.0 ID: 10733
Gene
Gene symbol

PLK4

Gene ID

10733

Gene namepolo like kinase 4
SynonymsMCCRP2|SAK|STK18
Cytomap

4q28.1

Type of geneprotein-coding
Descriptionserine/threonine-protein kinase PLK4Snk akin kinaseserine/threonine-protein kinase 18serine/threonine-protein kinase Sak
Modification date20240411
UniProtAcc

O00444


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GenePLK4

GO:0004674

protein serine/threonine kinase activity

21725316|27796307

GenePLK4

GO:0005813

centrosome

21399614|30804208|32433990

GenePLK4

GO:0005814

centriole

16244668|17681131|22020124|27796307

GenePLK4

GO:0005829

cytosol

-

GenePLK4

GO:0006468

protein phosphorylation

27796307|30804208

GenePLK4

GO:0007099

centriole replication

21059844

GenePLK4

GO:0046601

positive regulation of centriole replication

22349705

GenePLK4

GO:0046601

positive regulation of centriole replication

27796307

GenePLK4

GO:0120098

procentriole

24997597



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
O00444-1O00444-1_3cok_A.pdb3COKX-ray2.25A2266

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
O00444PLK4O00444-1O00444-29709384374Deletionnonenone4242
O00444PLK4O00444-1O00444-3970929141Deletionnonenone00

check buttonMultiple sequence alignment of our canonical and alternatively spliced PLK4

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of PLK4
UniProt-idENSGENSTENSP
O00444-1ENSG00000142731.11ENST00000270861.10ENSP00000270861.5
O00444-2ENSG00000142731.11ENST00000513090.5ENSP00000427554.1
O00444-3ENSG00000142731.11ENST00000514379.5ENSP00000423582.1

UniProt-idNM IDNP ID
O00444-1NM_014264.4NP_055079.3
O00444-2NM_001190799.1NP_001177728.1
O00444-3NM_001190801.1NP_001177730.1

check buttonAmino acid sequences of our canonical and alternatively spliced PLK4
accession_idProtein sequence
O00444-1MATCIGEKIEDFKVGNLLGKGSFAGVYRAESIHTGLEVAIKMIDKKAMYKAGMVQRVQNEVKIHCQLKHPSILELYNYFEDSNYVYLVLE
MCHNGEMNRYLKNRVKPFSENEARHFMHQIITGMLYLHSHGILHRDLTLSNLLLTRNMNIKIADFGLATQLKMPHEKHYTLCGTPNYISP
EIATRSAHGLESDVWSLGCMFYTLLIGRPPFDTDTVKNTLNKVVLADYEMPSFLSIEAKDLIHQLLRRNPADRLSLSSVLDHPFMSRNSS
TKSKDLGTVEDSIDSGHATISTAITASSSTSISGSLFDKRRLLIGQPLPNKMTVFPKNKSSTDFSSSGDGNSFYTQWGNQETSNSGRGRV
IQDAEERPHSRYLRRAYSSDRSGTSNSQSQAKTYTMERCHSAEMLSVSKRSGGGENEERYSPTDNNANIFNFFKEKTSSSSGSFERPDNN
QALSNHLCPGKTPFPFADPTPQTETVQQWFGNLQINAHLRKTTEYDSISPNRDFQGHPDLQKDTSKNAWTDTKVKKNSDASDNAHSVKQQ
NTMKYMTALHSKPEIIQQECVFGSDPLSEQSKTRGMEPPWGYQNRTLRSITSPLVAHRLKPIRQKTKKAVVSILDSEEVCVELVKEYASQ
EYVKEVLQISSDGNTITIYYPNGGRGFPLADRPPSPTDNISRYSFDNLPEKYWRKYQYASRFVQLVRSKSPKITYFTRYAKCILMENSPG
ADFEVWFYDGVKIHKTEDFIQVIEKTGKSYTLKSESEVNSLKEEIKMYMDHANEGHRICLALESIISEEERKTRSAPFFPIIIGRKPGST
SSPKALSPPPSVDSNYPTRERASFNRMVMHSAASPTQAPILNPSMVTNEGLGLTTTASGTDISSNSLKDCLPKSAQLLKSVFVKNVGWAT
O00444-2MATCIGEKIEDFKVGNLLGKGSFAGVYRAESIHTGLEVAIKMLYNYFEDSNYVYLVLEMCHNGEMNRYLKNRVKPFSENEARHFMHQIIT
GMLYLHSHGILHRDLTLSNLLLTRNMNIKIADFGLATQLKMPHEKHYTLCGTPNYISPEIATRSAHGLESDVWSLGCMFYTLLIGRPPFD
TDTVKNTLNKVVLADYEMPSFLSIEAKDLIHQLLRRNPADRLSLSSVLDHPFMSRNSSTKSKDLGTVEDSIDSGHATISTAITASSSTSI
SGSLFDKRRLLIGQPLPNKMTVFPKNKSSTDFSSSGDGNSFYTQWGNQETSNSGRGRVIQDAEERPHSRYLRRAYSSDRSGTSNSQSQAK
TYTMERCHSAEMLSVSKRSGGGENEERYSPTDNNANIFNFFKEKTSSSSGSFERPDNNQALSNHLCPGKTPFPFADPTPQTETVQQWFGN
LQINAHLRKTTEYDSISPNRDFQGHPDLQKDTSKNAWTDTKVKKNSDASDNAHSVKQQNTMKYMTALHSKPEIIQQECVFGSDPLSEQSK
TRGMEPPWGYQNRTLRSITSPLVAHRLKPIRQKTKKAVVSILDSEEVCVELVKEYASQEYVKEVLQISSDGNTITIYYPNGGRGFPLADR
PPSPTDNISRYSFDNLPEKYWRKYQYASRFVQLVRSKSPKITYFTRYAKCILMENSPGADFEVWFYDGVKIHKTEDFIQVIEKTGKSYTL
KSESEVNSLKEEIKMYMDHANEGHRICLALESIISEEERKTRSAPFFPIIIGRKPGSTSSPKALSPPPSVDSNYPTRERASFNRMVMHSA
ASPTQAPILNPSMVTNEGLGLTTTASGTDISSNSLKDCLPKSAQLLKSVFVKNVGWATQLTSGAVWVQFNDGSQLVVQAGVSSISYTSPN
O00444-3MIDKKAMYKAGMVQRVQNEVKIHCQLKHPSILELYNYFEDSNYVYLVLEMCHNGEMNRYLKNRVKPFSENEARHFMHQIITGMLYLHSHG
ILHRDLTLSNLLLTRNMNIKIADFGLATQLKMPHEKHYTLCGTPNYISPEIATRSAHGLESDVWSLGCMFYTLLIGRPPFDTDTVKNTLN
KVVLADYEMPSFLSIEAKDLIHQLLRRNPADRLSLSSVLDHPFMSRNSSTKSKDLGTVEDSIDSGHATISTAITASSSTSISGSLFDKRR
LLIGQPLPNKMTVFPKNKSSTDFSSSGDGNSFYTQWGNQETSNSGRGRVIQDAEERPHSRYLRRAYSSDRSGTSNSQSQAKTYTMERCHS
AEMLSVSKRSGGGENEERYSPTDNNANIFNFFKEKTSSSSGSFERPDNNQALSNHLCPGKTPFPFADPTPQTETVQQWFGNLQINAHLRK
TTEYDSISPNRDFQGHPDLQKDTSKNAWTDTKVKKNSDASDNAHSVKQQNTMKYMTALHSKPEIIQQECVFGSDPLSEQSKTRGMEPPWG
YQNRTLRSITSPLVAHRLKPIRQKTKKAVVSILDSEEVCVELVKEYASQEYVKEVLQISSDGNTITIYYPNGGRGFPLADRPPSPTDNIS
RYSFDNLPEKYWRKYQYASRFVQLVRSKSPKITYFTRYAKCILMENSPGADFEVWFYDGVKIHKTEDFIQVIEKTGKSYTLKSESEVNSL
KEEIKMYMDHANEGHRICLALESIISEEERKTRSAPFFPIIIGRKPGSTSSPKALSPPPSVDSNYPTRERASFNRMVMHSAASPTQAPIL
NPSMVTNEGLGLTTTASGTDISSNSLKDCLPKSAQLLKSVFVKNVGWATQLTSGAVWVQFNDGSQLVVQAGVSSISYTSPNGQTTRYGEN

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
PLK4 (go to UniProt):O00444

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
O00444Domain12265Note=Protein kinase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00159Type=Deletion;Start=43;End=74
O00444Domain12265Note=Protein kinase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00159Type=Deletion;Start=1;End=41


Gene Isoform Structures and Expression Levels for PLK4

check buttonGene structures of our canonical and alternative spliced genes of PLK4
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of PLK4

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 O00444-1
3D view using mol* of O00444-2
3D view using mol* of O00444-3


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 O00444-1
all structure
pLDDT distribution across the protein length of O00444-2
all structure
pLDDT distribution across the protein length of O00444-3
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 O00444-1
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
O00444-11.0581161.141232.8970.6070.6540.8541.2450.5872.1221.5148,9,48,55,57,58,59,61,62,65,77,78,79,80,81,85,429,
430,432,433
O00444-21.0361021.087448.9870.680.6860.8070.390.8130.4811.25747,566,567,568,570,663,664,667,668,669,683,684,765
,767,768,850,851,852,853,854,870,871,872,874,886,8
88,891,893,895,905
O00444-31.058981.114343.6860.6330.7130.8831.0940.751.4581.578434,435,436,437,438,557,558,559,561,651,654,655,65
8,659,660,661,662,663,670,672,674,675,683,684,685,
691,692,693,700,702,758,759,760,761

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 O00444-1_O00444-1_3cok_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 O00444-1_3cok_A_O00444-2.pdb
3D view using mol* of O00444-1_3cok_A_O00444-3.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 O00444-1_O00444-2.pdb
3D view using mol* of O00444-1_O00444-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/O00444-1_vs_O00444-2.png
all structure<
./stats/secondary_structure/figure/O00444-1_vs_O00444-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/O00444-1_vs_O00444-2.png
all structure<
./stats/relative_asa/O00444-1_vs_O00444-3.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to PLK4


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
O00444PLK4DB12010Fostamatinibapproved, investigationalinhibitor

Related Diseases to PLK4


check button Previous studies relating to the alternative splicing of PLK4 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in PLK4


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