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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:STK26

Protein Summary

check button Gene summary
Gene name: STK26
ASpdb.0 ID: 51765
Gene
Gene symbol

STK26

Gene ID

51765

Gene nameserine/threonine kinase 26
SynonymsMASK|MST4
Cytomap

Xq26.2

Type of geneprotein-coding
Descriptionserine/threonine-protein kinase 26Mst3 and SOK1-related kinaseSTE20-like kinase 4STE20-like kinase MST4mammalian Ste20-like protein kinase 4mammalian sterile 20-like 4serine/threonine protein kinase 26serine/threonine protein kinase MST4serine/thr
Modification date20240411
UniProtAcc

Q9P289


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneSTK26

GO:0000287

magnesium ion binding

11641781

GeneSTK26

GO:0004672

protein kinase activity

11641781

GeneSTK26

GO:0005524

ATP binding

11641781

GeneSTK26

GO:0005737

cytoplasm

17360971|22291017|27807006

GeneSTK26

GO:0005794

Golgi apparatus

15037601|22291017|27807006

GeneSTK26

GO:0005798

Golgi-associated vesicle

22797597

GeneSTK26

GO:0005829

cytosol

22797597

GeneSTK26

GO:0006468

protein phosphorylation

11641781

GeneSTK26

GO:0016020

membrane

27807006

GeneSTK26

GO:0016324

apical plasma membrane

22797597

GeneSTK26

GO:0030033

microvillus assembly

22797597

GeneSTK26

GO:0034599

cellular response to oxidative stress

22291017

GeneSTK26

GO:0042981

regulation of apoptotic process

11741893

GeneSTK26

GO:0048471

perinuclear region of cytoplasm

22291017

GeneSTK26

GO:0071944

cell periphery

22291017



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q9P289-1Q9P289-1_3ggf_A.pdb3GGFX-ray2.35A17300

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q9P289STK26Q9P289-1Q9P289-24163391591Deletionnonenone1414
Q9P289STK26Q9P289-1Q9P289-3416354200261Deletionnonenone199199

check buttonMultiple sequence alignment of our canonical and alternatively spliced STK26

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of STK26
UniProt-idENSGENSTENSP
Q9P289-1ENSG00000134602.16ENST00000394334.7ENSP00000377867.2
Q9P289-2ENSG00000134602.16ENST00000394335.6ENSP00000377868.2
Q9P289-3ENSG00000134602.16ENST00000496850.1ENSP00000419702.1

UniProt-idNM IDNP ID
Q9P289-1NM_016542.3NP_057626.2
Q9P289-2NM_001042453.1NP_001035918.1
Q9P289-3NM_001042452.1NP_001035917.1

check buttonAmino acid sequences of our canonical and alternatively spliced STK26
accession_idProtein sequence
Q9P289-1MAHSPVAVQVPGMQNNIADPEELFTKLERIGKGSFGEVFKGIDNRTQQVVAIKIIDLEEAEDEIEDIQQEITVLSQCDSSYVTKYYGSYL
KGSKLWIIMEYLGGGSALDLLRAGPFDEFQIATMLKEILKGLDYLHSEKKIHRDIKAANVLLSEQGDVKLADFGVAGQLTDTQIKRNTFV
GTPFWMAPEVIQQSAYDSKADIWSLGITAIELAKGEPPNSDMHPMRVLFLIPKNNPPTLVGDFTKSFKEFIDACLNKDPSFRPTAKELLK
HKFIVKNSKKTSYLTELIDRFKRWKAEGHSDDESDSEGSDSESTSRENNTHPEWSFTTVRKKPDPKKVQNGAEQDLVQTLSCLSMIITPA
Q9P289-2MAHSPVAVQVPGMQGSKLWIIMEYLGGGSALDLLRAGPFDEFQIATMLKEILKGLDYLHSEKKIHRDIKAANVLLSEQGDVKLADFGVAG
QLTDTQIKRNTFVGTPFWMAPEVIQQSAYDSKADIWSLGITAIELAKGEPPNSDMHPMRVLFLIPKNNPPTLVGDFTKSFKEFIDACLNK
DPSFRPTAKELLKHKFIVKNSKKTSYLTELIDRFKRWKAEGHSDDESDSEGSDSESTSRENNTHPEWSFTTVRKKPDPKKVQNGAEQDLV
Q9P289-3MAHSPVAVQVPGMQNNIADPEELFTKLERIGKGSFGEVFKGIDNRTQQVVAIKIIDLEEAEDEIEDIQQEITVLSQCDSSYVTKYYGSYL
KGSKLWIIMEYLGGGSALDLLRAGPFDEFQIATMLKEILKGLDYLHSEKKIHRDIKAANVLLSEQGDVKLADFGVAGQLTDTQIKRNTFV
GTPFWMAPEVIQQSAYDSKRPTAKELLKHKFIVKNSKKTSYLTELIDRFKRWKAEGHSDDESDSEGSDSESTSRENNTHPEWSFTTVRKK

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
STK26 (go to UniProt):Q9P289

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
Q9P289Domain24274Note=Protein kinase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00159Type=Deletion;Start=15;End=91
Q9P289Domain24274Note=Protein kinase;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00159Type=Deletion;Start=200;End=261


Gene Isoform Structures and Expression Levels for STK26

check buttonGene structures of our canonical and alternative spliced genes of STK26
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of STK26

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 Q9P289-1
3D view using mol* of Q9P289-2
3D view using mol* of Q9P289-3


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 Q9P289-1
all structure
pLDDT distribution across the protein length of Q9P289-2
all structure
pLDDT distribution across the protein length of Q9P289-3
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 Q9P289-1
all structure
Ramachandran plot of Q9P289-2
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
Q9P289-11.0334340.9941538.0120.5530.7480.9620.4441.2110.3671.19826,30,31,32,33,34,35,36,37,38,39,51,53,54,55,56,59
,60,61,62,63,64,65,66,70,74,83,94,99,100,101,102,1
03,104,105,106,108,109,112,143,144,146,147,148,149
,151,154,161,162,163,164,165,166,167,168,169,170,1
72,173,176,177,178,179,180,181,182,184,185,186,187
,190,196,200,204,211,215,216,217,220,221,222,223,2
24,225,228,288,291,292,294,295,300,301,302,324,326
,327,328,329,330
Q9P289-21.132511.23621.5160.5430.7160.8841.8860.4294.41.72497,102,106,114,115,116,147,148,149,151,152,155,156
,180,247,272,273,275,278,279,280,282,283,284,286,2
87,304,308,320,321,322,323,324,326,327,328,330,331
,334
Q9P289-31.031691.085593.7330.6710.670.80.7170.7870.9111.142125,128,129,132,133,136,137,141,142,143,144,145,16
6,167,168,169,173,174,176,178,179,180,181,182,185,
186,187,189,190,191,193,194,196,201,202,203,204,20
6,209,211,212

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 Q9P289-1_Q9P289-1_3ggf_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 Q9P289-1_3ggf_A_Q9P289-2.pdb
3D view using mol* of Q9P289-1_3ggf_A_Q9P289-3.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 Q9P289-1_Q9P289-2.pdb
3D view using mol* of Q9P289-1_Q9P289-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q9P289-1_vs_Q9P289-2.png
all structure<
./stats/secondary_structure/figure/Q9P289-1_vs_Q9P289-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q9P289-1_vs_Q9P289-2.png
all structure<
./stats/relative_asa/Q9P289-1_vs_Q9P289-3.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 STK26


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
Q9P289STK26DB078532-[4-[4-[(5-cyclopropyl-1H-pyrazol-3-yl)amino]quinazolin-2-yl]iminocyclohexa-2,5-dien-1-yl]acetonitrileexperimental
Q9P289STK26DB12010Fostamatinibapproved, investigationalinhibitor

Related Diseases to STK26


check button Previous studies relating to the alternative splicing of STK26 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in STK26


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