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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:PIK3C2A

Protein Summary

check button Gene summary
Gene name: PIK3C2A
ASpdb.0 ID: 5286
Gene
Gene symbol

PIK3C2A

Gene ID

5286

Gene namephosphatidylinositol-4-phosphate 3-kinase catalytic subunit type 2 alpha
SynonymsCPK|OCSKD|PI3-K-C2(ALPHA)|PI3-K-C2A|PI3K-C2-alpha|PI3K-C2alpha
Cytomap

11p15.1

Type of geneprotein-coding
Descriptionphosphatidylinositol 4-phosphate 3-kinase C2 domain-containing subunit alphaC2-containing phosphatidylinositol kinasephosphatidylinositol-4-phosphate 3-kinase C2 domain-containing subunit alphaphosphoinositide 3-kinase-C2-alphaphosphoinositide-3-kinas
Modification date20240411
UniProtAcc

O00443


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GenePIK3C2A

GO:0005654

nucleoplasm

-

GenePIK3C2A

GO:0005737

cytoplasm

21081650

GenePIK3C2A

GO:0005802

trans-Golgi network

10766823|11239472

GenePIK3C2A

GO:0005829

cytosol

-

GenePIK3C2A

GO:0005886

plasma membrane

10766823|11239472|21081650

GenePIK3C2A

GO:0016303

1-phosphatidylinositol-3-kinase activity

9337861|10766823|10805725|11239472

GenePIK3C2A

GO:0030136

clathrin-coated vesicle

10766823|11239472

GenePIK3C2A

GO:0030276

clathrin binding

11239472

GenePIK3C2A

GO:0031982

vesicle

21081650

GenePIK3C2A

GO:0035005

1-phosphatidylinositol-4-phosphate 3-kinase activity

9337861|10805725|11239472

GenePIK3C2A

GO:0043231

intracellular membrane-bounded organelle

-

GenePIK3C2A

GO:0046934

1-phosphatidylinositol-4,5-bisphosphate 3-kinase activity

9337861|11239472



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
O00443-1O00443-1_6bub_A.pdb6BUBX-ray2.6A14061539

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
O00443PIK3C2AO00443-1O00443-216864834841686Deletionnonenone483483

check buttonMultiple sequence alignment of our canonical and alternatively spliced PIK3C2A

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of PIK3C2A
UniProt-idENSGENSTENSP
O00443-1ENSG00000011405.14ENST00000265970.11ENSP00000265970.6
O00443-1ENSG00000011405.14ENST00000691414.1ENSP00000509400.1

UniProt-idNM IDNP ID
O00443-1NM_001321378.1NP_001308307.1
O00443-1NM_002645.3NP_002636.2

check buttonAmino acid sequences of our canonical and alternatively spliced PIK3C2A
accession_idProtein sequence
O00443-1MAQISSNSGFKECPSSHPEPTRAKDVDKEEALQMEAEALAKLQKDRQVTDNQRGFELSSSTRKKAQVYNKQDYDLMVFPESDSQKRALDI
DVEKLTQAELEKLLLDDSFETKKTPVLPVTPILSPSFSAQLYFRPTIQRGQWPPGLPGPSTYALPSIYPSTYSKQAAFQNGFNPRMPTFP
STEPIYLSLPGQSPYFSYPLTPATPFHPQGSLPIYRPVVSTDMAKLFDKIASTSEFLKNGKARTDLEITDSKVSNLQVSPKSEDISKFDW
LDLDPLSKPKVDNVEVLDHEEEKNVSSLLAKDPWDAVLLEERSTANCHLERKVNGKSLSVATVTRSQSLNIRTTQLAKAQGHISQKDPNG
TSSLPTGSSLLQEVEVQNEEMAAFCRSITKLKTKFPYTNHRTNPGYLLSPVTAQRNICGENASVKVSIDIEGFQLPVTFTCDVSSTVEII
IMQALCWVHDDLNQVDVGSYVLKVCGQEEVLQNNHCLGSHEHIQNCRKWDTEIRLQLLTFSAMCQNLARTAEDDETPVDLNKHLYQIEKP
CKEAMTRHPVEELLDSYHNQVELALQIENQHRAVDQVIKAVRKICSALDGVETLAITESVKKLKRAVNLPRSKTADVTSLFGGEDTSRSS
TRGSLNPENPVQVSINQLTAAIYDLLRLHANSGRSPTDCAQSSKSVKEAWTTTEQLQFTIFAAHGISSNWVSNYEKYYLICSLSHNGKDL
FKPIQSKKVGTYKNFFYLIKWDELIIFPIQISQLPLESVLHLTLFGILNQSSGSSPDSNKQRKGPEALGKVSLPLFDFKRFLTCGTKLLY
LWTSSHTNSVPGTVTKKGYVMERIVLQVDFPSPAFDIIYTTPQVDRSIIQQHNLETLENDIKGKLLDILHKDSSLGLSKEDKAFLWEKRY
YCFKHPNCLPKILASAPNWKWVNLAKTYSLLHQWPALYPLIALELLDSKFADQEVRSLAVTWIEAISDDELTDLLPQFVQALKYEIYLNS
SLVQFLLSRALGNIQIAHNLYWLLKDALHDVQFSTRYEHVLGALLSVGGKRLREELLKQTKLVQLLGGVAEKVRQASGSARQVVLQRSME
RVQSFFQKNKCRLPLKPSLVAKELNIKSCSFFSSNAVPLKVTMVNADPMGEEINVMFKVGEDLRQDMLALQMIKIMDKIWLKEGLDLRMV
IFKCLSTGRDRGMVELVPASDTLRKIQVEYGVTGSFKDKPLAEWLRKYNPSEEEYEKASENFIYSCAGCCVATYVLGICDRHNDNIMLRS
TGHMFHIDFGKFLGHAQMFGSFKRDRAPFVLTSDMAYVINGGEKPTIRFQLFVDLCCQAYNLIRKQTNLFLNLLSLMIPSGLPELTSIQD
LKYVRDALQPQTTDAEATIFFTRLIESSLGSIATKFNFFIHNLAQLRFSGLPSNDEPILSFSPKTYSFRQDGRIKEVSVFTYHKKYNPDK
HYIYVVRILREGQIEPSFVFRTFDEFQELHNKLSIIFPLWKLPGFPNRMVLGRTHIKDVAAKRKIELNSYLQSLMNASTDVAECDLVCTF
FHPLLRDEKAEGIARSADAGSFSPTPGQIGGAVKLSISYRNGTLFIMVMHIKDLVTEDGADPNPYVKTYLLPDNHKTSKRKTKISRKTRN
O00443-2MAQISSNSGFKECPSSHPEPTRAKDVDKEEALQMEAEALAKLQKDRQVTDNQRGFELSSSTRKKAQVYNKQDYDLMVFPESDSQKRALDI
DVEKLTQAELEKLLLDDSFETKKTPVLPVTPILSPSFSAQLYFRPTIQRGQWPPGLPGPSTYALPSIYPSTYSKQAAFQNGFNPRMPTFP
STEPIYLSLPGQSPYFSYPLTPATPFHPQGSLPIYRPVVSTDMAKLFDKIASTSEFLKNGKARTDLEITDSKVSNLQVSPKSEDISKFDW
LDLDPLSKPKVDNVEVLDHEEEKNVSSLLAKDPWDAVLLEERSTANCHLERKVNGKSLSVATVTRSQSLNIRTTQLAKAQGHISQKDPNG
TSSLPTGSSLLQEVEVQNEEMAAFCRSITKLKTKFPYTNHRTNPGYLLSPVTAQRNICGENASVKVSIDIEGFQLPVTFTCDVSSTVEII

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
PIK3C2A (go to UniProt):O00443

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
O00443Domain421509Note=PI3K-RBD;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00879Type=Deletion;Start=484;End=1686
O00443Domain682841"Note=C2 PI3K-type;Ontology_term=ECO:0000255ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00041
O00443Domain8611037Note=PIK helical;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00878Type=Deletion;Start=484;End=1686
O00443Domain11051383Note=PI3K/PI4K catalytic;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00269Type=Deletion;Start=484;End=1686
O00443Domain14221538Note=PX;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00147Type=Deletion;Start=484;End=1686
O00443Domain15551678Note=C2;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00041Type=Deletion;Start=484;End=1686
O00443Region618639Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=484;End=1686
O00443Region11111117Note=G-loop;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00269Type=Deletion;Start=484;End=1686
O00443Region12471255Note=Catalytic loop;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00269Type=Deletion;Start=484;End=1686
O00443Region12661292Note=Activation loop;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00269Type=Deletion;Start=484;End=1686
O00443Region14881493Note=Interaction with PtdIns(4%2C5)P2-containing membranes;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q61194Type=Deletion;Start=484;End=1686
O00443Motif16081619Note=Nuclear localization signal;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:11606566;Dbxref=PMID:11606566Type=Deletion;Start=484;End=1686


Gene Isoform Structures and Expression Levels for PIK3C2A

check buttonGene structures of our canonical and alternative spliced genes of PIK3C2A
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of PIK3C2A

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 O00443-1
3D view using mol* of O00443-2


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 O00443-1
all structure
pLDDT distribution across the protein length of O00443-2
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 O00443-1
all structure
Ramachandran plot of O00443-2
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
O00443-11.0531901.075667.1350.5680.7640.940.6720.9930.6770.907371,374,375,378,381,531,534,537,539,540,541,542,54
3,544,545,547,550,551,584,588,589,656,659,660,664,
810,811,812,813,829,830,831,832,833,834,1018,1020,
1021,1022,1023,1024,1025,1028,1029
O00443-21.021931.088180.7610.5260.6580.8511.5720.6542.4030.729426,427,428,429,430,431,450,451,454,455,458,459,47
0,471,472,473,474,475,481

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 O00443-1_O00443-1_6bub_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 O00443-1_6bub_A_O00443-2.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 O00443-1_O00443-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/O00443-1_vs_O00443-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/O00443-1_vs_O00443-2.png
all structure<


Protein-Protein Interaction


check button Interactors from UniProt.
Accession_idSubsectionStartEndFuncitonal featureSplicing information
O00443Region14881493Note=Interaction with PtdIns(4%2C5)P2-containing membranes;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:Q61194Type=Deletion;Start=484;End=1686


check button Interactors from STRING.
Gene nameInteractors


Related Drugs to PIK3C2A


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

Related Diseases to PIK3C2A


check button Previous studies relating to the alternative splicing of PIK3C2A and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in PIK3C2A


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