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:GSTA4

Protein Summary

check button Gene summary
Gene name: GSTA4
ASpdb.0 ID: 2941
Gene
Gene symbol

GSTA4

Gene ID

2941

Gene nameglutathione S-transferase alpha 4
SynonymsGSTA4-4|GTA4
Cytomap

6p12.2

Type of geneprotein-coding
Descriptionglutathione S-transferase A4GST class-alpha member 4S-(hydroxyalkyl)glutathione lyase A4glutathione S-alkyltransferase A4glutathione S-aralkyltransferase A4glutathione S-aryltransferase A4glutathione S-transferase A4-4glutathione transferase A4-4
Modification date20240403
UniProtAcc

O15217


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneGSTA4

GO:0004364

glutathione transferase activity

10329152|11851347

GeneGSTA4

GO:0006749

glutathione metabolic process

10329152

GeneGSTA4

GO:0006805

xenobiotic metabolic process

10329152



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
O15217-1O15217-1_3ik7_A.pdb3IK7X-ray1.97A2222

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
O15217GSTA4O15217-1O15217-2222129193Deletionnonenone00

check buttonMultiple sequence alignment of our canonical and alternatively spliced GSTA4

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of GSTA4
UniProt-idENSGENSTENSP
O15217-1ENSG00000170899.11ENST00000370959.1ENSP00000359998.1
O15217-1ENSG00000170899.11ENST00000370963.9ENSP00000360002.4
O15217-2ENSG00000170899.11ENST00000370960.5ENSP00000359999.1

UniProt-idNM IDNP ID
O15217-1NM_001512.3NP_001503.1
O15217-1XM_005249035.3XP_005249092.1

check buttonAmino acid sequences of our canonical and alternatively spliced GSTA4
accession_idProtein sequence
O15217-1MAARPKLHYPNGRGRMESVRWVLAAAGVEFDEEFLETKEQLYKLQDGNHLLFQQVPMVEIDGMKLVQTRSILHYIADKHNLFGKNLKERT
LIDMYVEGTLDLLELLIMHPFLKPDDQQKEVVNMAQKAIIRYFPVFEKILRGHGQSFLVGNQLSLADVILLQTILALEEKIPNILSAFPF
O15217-2MYVEGTLDLLELLIMHPFLKPDDQQKEVVNMAQKAIIRYFPVFEKILRGHGQSFLVGNQLSLADVILLQTILALEEKIPNILSAFPFLQE

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
GSTA4 (go to UniProt):O15217

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
O15217Domain383Note=GST N-terminalType=Deletion;Start=1;End=93
O15217Domain85208Note=GST C-terminalType=Deletion;Start=1;End=93


Gene Isoform Structures and Expression Levels for GSTA4

check buttonGene structures of our canonical and alternative spliced genes of GSTA4
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of GSTA4

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 O15217-1
3D view using mol* of O15217-2


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 O15217-1
all structure
pLDDT distribution across the protein length of O15217-2
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 O15217-1
all structure
Ramachandran plot of O15217-2
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
O15217-11.0161091.028291.8930.5640.7221.0160.6731.0580.6360.3429,13,14,15,18,54,55,56,66,67,68,69,100,101,103,104
,107,108,110,111,162,208,212,216,217,220,221
O15217-21.0511361.115347.1160.5390.6810.9271.4530.7162.0291.10810,13,14,17,18,65,68,69,72,73,76,77,101,104,105,11
1,112,113,114,115,116,119

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 O15217-1_O15217-1_3ik7_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 O15217-1_3ik7_A_O15217-2.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 O15217-1_O15217-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/O15217-1_vs_O15217-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/O15217-1_vs_O15217-2.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 GSTA4


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
O15217GSTA4DB00143Glutathioneapproved, investigational, nutraceutical

Related Diseases to GSTA4


check button Previous studies relating to the alternative splicing of GSTA4 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in GSTA4


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