ASpdb: an integrative knowledgebase of human protein isoforms from experimental and AI-predicted structures
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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:IMPA2

Protein Summary

check button Gene summary
Gene name: IMPA2
ASpdb.0 ID: 3613
Gene
Gene symbol

IMPA2

Gene ID

3613

Gene nameinositol monophosphatase 2
Synonyms-
Cytomap

18p11.21

Type of geneprotein-coding
Descriptioninositol monophosphatase 2IMP 2IMPase 2inosine monophosphatase 2inositol(myo)-1(or 4)-monophosphatase 2myo-inositol monophosphatase 2myo-inositol monophosphatase A2
Modification date20240305
UniProtAcc

O14732


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneIMPA2

GO:0005737

cytoplasm

17068342

GeneIMPA2

GO:0008934

inositol monophosphate 1-phosphatase activity

17068342

GeneIMPA2

GO:0010226

response to lithium ion

15504365

GeneIMPA2

GO:0042803

protein homodimerization activity

17068342



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
O14732-1O14732-1_2czk_A.pdb2CZKX-ray2.9A15283

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
O14732IMPA2O14732-1O14732-2288261634SubstitutionEDQAALAAGPWEECFQAAVQLALRAGQIIQD67

check buttonMultiple sequence alignment of our canonical and alternatively spliced IMPA2

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of IMPA2
UniProt-idENSGENSTENSP
O14732-1ENSG00000141401.12ENST00000269159.8ENSP00000269159.3

UniProt-idNM IDNP ID
O14732-1NM_014214.2NP_055029.1

check buttonAmino acid sequences of our canonical and alternatively spliced IMPA2
accession_idProtein sequence
O14732-1MKPSGEDQAALAAGPWEECFQAAVQLALRAGQIIRKALTEEKRVSTKTSAADLVTETDHLVEDLIISELRERFPSHRFIAEEAAASGAKC
VLTHSPTWIIDPIDGTCNFVHRFPTVAVSIGFAVRQELEFGVIYHCTEERLYTGRRGRGAFCNGQRLRVSGETDLSKALVLTEIGPKRDP
ATLKLFLSNMERLLHAKAHGVRVIGSSTLALCHLASGAADAYYQFGLHCWDLAAATVIIREAGGIVIDTSGGPLDLMACRVVAASTREMA
O14732-2MKPSGQDRKALTEEKRVSTKTSAADLVTETDHLVEDLIISELRERFPSHRFIAEEAAASGAKCVLTHSPTWIIDPIDGTCNFVHRFPTVA
VSIGFAVRQELEFGVIYHCTEERLYTGRRGRGAFCNGQRLRVSGETDLSKALVLTEIGPKRDPATLKLFLSNMERLLHAKAHGVRVIGSS

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
IMPA2 (go to UniProt):O14732

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


Gene Isoform Structures and Expression Levels for IMPA2

check buttonGene structures of our canonical and alternative spliced genes of IMPA2
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of IMPA2

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 O14732-1
3D view using mol* of O14732-2


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 O14732-1
all structure
pLDDT distribution across the protein length of O14732-2
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 O14732-1
all structure
Ramachandran plot of O14732-2
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
O14732-11.0682220.967539.1960.4080.81.0150.3961.3880.2850.69347,48,51,52,53,58,81,82,84,85,87,88,89,90,101,102,
103,104,105,106,107,173,174,175,176,177,178,205,20
6,207,224,226,227,228,230,231,282,285,288
O14732-21.0612150.97510.0410.430.7890.9930.3881.3610.2850.68420,21,22,24,25,26,31,54,55,57,58,61,62,63,74,75,76
,77,78,79,80,146,147,148,149,150,151,176,178,179,1
80,197,199,200,201,203,204,255,256,258,261

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 O14732-1_O14732-1_2czk_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 O14732-1_2czk_A_O14732-2.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 O14732-1_O14732-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/O14732-1_vs_O14732-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/O14732-1_vs_O14732-2.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 IMPA2


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
O14732IMPA2DB14507Lithium citrateapproved
O14732IMPA2DB01356Lithium cationexperimentalinhibitor
O14732IMPA2DB14509Lithium carbonateapproved
O14732IMPA2DB14508Lithium succinateexperimental

Related Diseases to IMPA2


check button Previous studies relating to the alternative splicing of IMPA2 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in IMPA2


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