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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:STK4

Protein Summary

check button Gene summary
Gene name: STK4
ASpdb.0 ID: 6789
Gene
Gene symbol

STK4

Gene ID

6789

Gene nameserine/threonine kinase 4
SynonymsKRS2|MST1|YSK3
Cytomap

20q13.12

Type of geneprotein-coding
Descriptionserine/threonine-protein kinase 4STE20-like kinase MST1hippo homologkinase responsive to stress 2mammalian STE20-like protein kinase 1mammalian sterile 20-like 1serine/threonine-protein kinase Krs-2
Modification date20240416
UniProtAcc

Q13043


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneSTK4

GO:0000287

magnesium ion binding

8566796

GeneSTK4

GO:0000902

cell morphogenesis

11805089

GeneSTK4

GO:0001934

positive regulation of protein phosphorylation

19962960

GeneSTK4

GO:0004674

protein serine/threonine kinase activity

8566796|11805089|16751106|18328708|18986304|19525978|21212262|21512132|30865227

GeneSTK4

GO:0005524

ATP binding

8566796

GeneSTK4

GO:0005634

nucleus

17932490|21512132

GeneSTK4

GO:0005654

nucleoplasm

-

GeneSTK4

GO:0005737

cytoplasm

17932490|19525978|21512132

GeneSTK4

GO:0005829

cytosol

-

GeneSTK4

GO:0006468

protein phosphorylation

11805089

GeneSTK4

GO:0006468

protein phosphorylation

8566796

GeneSTK4

GO:0006606

protein import into nucleus

16751106

GeneSTK4

GO:0006915

apoptotic process

21212262

GeneSTK4

GO:0016604

nuclear body

-

GeneSTK4

GO:0018105

peptidyl-serine phosphorylation

16751106

GeneSTK4

GO:0032092

positive regulation of protein binding

22292086

GeneSTK4

GO:0032991

protein-containing complex

19962960

GeneSTK4

GO:0033138

positive regulation of peptidyl-serine phosphorylation

19962960

GeneSTK4

GO:0035329

hippo signaling

20412773

GeneSTK4

GO:0035556

intracellular signal transduction

8566796

GeneSTK4

GO:0042803

protein homodimerization activity

11805089

GeneSTK4

GO:0043065

positive regulation of apoptotic process

15109305

GeneSTK4

GO:0046777

protein autophosphorylation

11805089

GeneSTK4

GO:0050821

protein stabilization

19962960



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q13043-1Q13043-1_6yat_A.pdb6YATX-ray2.58A18308

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q13043STK4Q13043-1Q13043-2487462436462SubstitutionLKSWTVEDLQKRLLALDPMMEQEIEEIKTSQEQQSGKDICIQNCQGNLLCRYAF436462
Q13043STK4Q13043-1Q13043-2487462463487Deletionnonenone462462

check buttonMultiple sequence alignment of our canonical and alternatively spliced STK4

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of STK4
UniProt-idENSGENSTENSP
Q13043-1ENSG00000101109.13ENST00000372806.8ENSP00000361892.3
Q13043-2ENSG00000101109.13ENST00000372801.5ENSP00000361887.1

UniProt-idNM IDNP ID
Q13043-1NM_006282.3NP_006273.1

check buttonAmino acid sequences of our canonical and alternatively spliced STK4
accession_idProtein sequence
Q13043-1METVQLRNPPRRQLKKLDEDSLTKQPEEVFDVLEKLGEGSYGSVYKAIHKETGQIVAIKQVPVESDLQEIIKEISIMQQCDSPHVVKYYG
SYFKNTDLWIVMEYCGAGSVSDIIRLRNKTLTEDEIATILQSTLKGLEYLHFMRKIHRDIKAGNILLNTEGHAKLADFGVAGQLTDTMAK
RNTVIGTPFWMAPEVIQEIGYNCVADIWSLGITAIEMAEGKPPYADIHPMRAIFMIPTNPPPTFRKPELWSDNFTDFVKQCLVKSPEQRA
TATQLLQHPFVRSAKGVSILRDLINEAMDVKLKRQESQQREVDQDDEENSEEDEMDSGTMVRAVGDEMGTVRVASTMTDGANTMIEHDDT
LPSQLGTMVINAEDEEEEGTMKRRDETMQPAKPSFLEYFEQKEKENQINSFGKSVPGPLKNSSDWKIPQDGDYEFLKSWTVEDLQKRLLA
Q13043-2METVQLRNPPRRQLKKLDEDSLTKQPEEVFDVLEKLGEGSYGSVYKAIHKETGQIVAIKQVPVESDLQEIIKEISIMQQCDSPHVVKYYG
SYFKNTDLWIVMEYCGAGSVSDIIRLRNKTLTEDEIATILQSTLKGLEYLHFMRKIHRDIKAGNILLNTEGHAKLADFGVAGQLTDTMAK
RNTVIGTPFWMAPEVIQEIGYNCVADIWSLGITAIEMAEGKPPYADIHPMRAIFMIPTNPPPTFRKPELWSDNFTDFVKQCLVKSPEQRA
TATQLLQHPFVRSAKGVSILRDLINEAMDVKLKRQESQQREVDQDDEENSEEDEMDSGTMVRAVGDEMGTVRVASTMTDGANTMIEHDDT
LPSQLGTMVINAEDEEEEGTMKRRDETMQPAKPSFLEYFEQKEKENQINSFGKSVPGPLKNSSDWKIPQDGDYEFKTSQEQQSGKDICIQ

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
STK4 (go to UniProt):Q13043

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
Q13043Domain433480Note=SARAH;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00310Type=Substitution;Start=436;End=462
Q13043Domain433480Note=SARAH;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00310Type=Deletion;Start=463;End=487


Gene Isoform Structures and Expression Levels for STK4

check buttonGene structures of our canonical and alternative spliced genes of STK4
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of STK4

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 Q13043-1
3D view using mol* of Q13043-2


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 Q13043-1
all structure
pLDDT distribution across the protein length of Q13043-2
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 Q13043-1
all structure
Ramachandran plot of Q13043-2
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
Q13043-11.0611311.089393.0780.5240.7610.9690.770.9450.8151.403146,148,149,150,151,171,172,173,174,175,177,183,18
4,185,186,187,188,190,191,192,195,196,198,200,201,
205,206,209,233
Q13043-21.081441.074610.1970.5310.81710.7391.0920.6770.84836,37,38,39,40,41,42,44,57,59,73,77,86,102,103,104
,105,106,107,108,109,112,115,116,149,151,153,154,1
56,166,167,171,301,304,305,308

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 Q13043-1_Q13043-1_6yat_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 Q13043-1_6yat_A_Q13043-2.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 Q13043-1_Q13043-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q13043-1_vs_Q13043-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q13043-1_vs_Q13043-2.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 STK4


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

Related Diseases to STK4


check button Previous studies relating to the alternative splicing of STK4 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in STK4


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