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:XPR1

Protein Summary

check button Gene summary
Gene name: XPR1
ASpdb.0 ID: 9213
Gene
Gene symbol

XPR1

Gene ID

9213

Gene namexenotropic and polytropic retrovirus receptor 1
SynonymsIBGC6|SLC53A1|SYG1|X3
Cytomap

1q25.3

Type of geneprotein-coding
Descriptionsolute carrier family 53 member 1X-receptorphosphate exporter SLC53A1protein SYG1 homologsolute carrier family 53 (phosphate exporter), member 1xenotropic and polytropic murine leukemia virus receptor X3
Modification date20240411
UniProtAcc

Q9UBH6


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneXPR1

GO:0000822

inositol hexakisphosphate binding

27080106

GeneXPR1

GO:0005886

plasma membrane

23791524|25938945|31043717



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q9UBH6-1Q9UBH6-1_5ijh_A.pdb5IJHX-ray2.43A2205

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q9UBH6XPR1Q9UBH6-1Q9UBH6-2696631437501Deletionnonenone436436

check buttonMultiple sequence alignment of our canonical and alternatively spliced XPR1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of XPR1
UniProt-idENSGENSTENSP
Q9UBH6-1ENSG00000143324.14ENST00000367590.9ENSP00000356562.4
Q9UBH6-2ENSG00000143324.14ENST00000367589.3ENSP00000356561.3

UniProt-idNM IDNP ID
Q9UBH6-1NM_004736.3NP_004727.2
Q9UBH6-2NM_001135669.1NP_001129141.1

check buttonAmino acid sequences of our canonical and alternatively spliced XPR1
accession_idProtein sequence
Q9UBH6-1MKFAEHLSAHITPEWRKQYIQYEAFKDMLYSAQDQAPSVEVTDEDTVKRYFAKFEEKFFQTCEKELAKINTFYSEKLAEAQRRFATLQNE
LQSSLDAQKESTGVTTLRQRRKPVFHLSHEERVQHRNIKDLKLAFSEFYLSLILLQNYQNLNFTGFRKILKKHDKILETSRGADWRVAHV
EVAPFYTCKKINQLISETEAVVTNELEDGDRQKAMKRLRVPPLGAAQPAPAWTTFRVGLFCGIFIVLNITLVLAAVFKLETDRSIWPLIR
IYRGGFLLIEFLFLLGINTYGWRQAGVNHVLIFELNPRSNLSHQHLFEIAGFLGILWCLSLLACFFAPISVIPTYVYPLALYGFMVFFLI
NPTKTFYYKSRFWLLKLLFRVFTAPFHKVGFADFWLADQLNSLSVILMDLEYMICFYSLELKWDESKGLLPNNSEESGICHKYTYGVRAI
VQCIPAWLRFIQCLRRYRDTKRAFPHLVNAGKYSTTFFMVTFAALYSTHKERGHSDTMVFFYLWIVFYIISSCYTLIWDLKMDWGLFDKN
AGENTFLREEIVYPQKAYYYCAIIEDVILRFAWTIQISITSTTLLPHSGDIIATVFAPLEVFRRFVWNFFRLENEHLNNCGEFRAVRDIS
Q9UBH6-2MKFAEHLSAHITPEWRKQYIQYEAFKDMLYSAQDQAPSVEVTDEDTVKRYFAKFEEKFFQTCEKELAKINTFYSEKLAEAQRRFATLQNE
LQSSLDAQKESTGVTTLRQRRKPVFHLSHEERVQHRNIKDLKLAFSEFYLSLILLQNYQNLNFTGFRKILKKHDKILETSRGADWRVAHV
EVAPFYTCKKINQLISETEAVVTNELEDGDRQKAMKRLRVPPLGAAQPAPAWTTFRVGLFCGIFIVLNITLVLAAVFKLETDRSIWPLIR
IYRGGFLLIEFLFLLGINTYGWRQAGVNHVLIFELNPRSNLSHQHLFEIAGFLGILWCLSLLACFFAPISVIPTYVYPLALYGFMVFFLI
NPTKTFYYKSRFWLLKLLFRVFTAPFHKVGFADFWLADQLNSLSVILMDLEYMICFYSLELKWDESKGLLPNNSEERGHSDTMVFFYLWI
VFYIISSCYTLIWDLKMDWGLFDKNAGENTFLREEIVYPQKAYYYCAIIEDVILRFAWTIQISITSTTLLPHSGDIIATVFAPLEVFRRF
VWNFFRLENEHLNNCGEFRAVRDISVAPLNADDQTLLEQMMDQDDGVRNRQKNRSWKYNQSISLRRPRLASQSKARDTKVLIEDTDDEAN

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
XPR1 (go to UniProt):Q9UBH6

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
Q9UBH6Topological domain424473Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=437;End=501
Q9UBH6Transmembrane474496Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=437;End=501
Q9UBH6Topological domain497507Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=437;End=501
Q9UBH6Domain439643Note=EXS;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00712Type=Deletion;Start=437;End=501


Gene Isoform Structures and Expression Levels for XPR1

check buttonGene structures of our canonical and alternative spliced genes of XPR1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of XPR1

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 Q9UBH6-1
3D view using mol* of Q9UBH6-2


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 Q9UBH6-1
all structure
pLDDT distribution across the protein length of Q9UBH6-2
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 Q9UBH6-1
all structure
Ramachandran plot of Q9UBH6-2
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
Q9UBH6-11.1314111.1921122.2960.4720.790.9872.3970.6823.5160.417133,137,271,274,275,278,281,282,285,289,292,299,30
1,302,303,304,305,306,307,309,310,311,316,319,323,
352,355,356,358,359,360,367,369,370,371,373,374,37
6,377,378,380,382,388,389,390,391,392,393,394,395,
396,400,403,406,407,409,410,411,413,414,451,454,46
6,469,470,476,611,615,619,624,627,628,629
Q9UBH6-21.153501.207873.9640.4050.8241.052.4690.6963.5480.534133,271,274,275,278,281,282,285,289,292,299,301,30
2,303,304,305,306,309,310,311,316,319,323,352,355,
356,358,359,360,367,369,370,371,373,374,376,377,37
8,380,388,390,391,392,393,395,396,399,400,403,406,
407,409,410,413,550,554,559,562,563,564

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 Q9UBH6-1_Q9UBH6-1_5ijh_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 Q9UBH6-1_5ijh_A_Q9UBH6-2.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 Q9UBH6-1_Q9UBH6-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q9UBH6-1_vs_Q9UBH6-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q9UBH6-1_vs_Q9UBH6-2.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 XPR1


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

Related Diseases to XPR1


check button Previous studies relating to the alternative splicing of XPR1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in XPR1


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