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:SLC26A9

Protein Summary

check button Gene summary
Gene name: SLC26A9
ASpdb.0 ID: 115019
Gene
Gene symbol

SLC26A9

Gene ID

115019

Gene namesolute carrier family 26 member 9
Synonyms-
Cytomap

1q32.1

Type of geneprotein-coding
Descriptionsolute carrier family 26 member 9anion transporter/exchanger protein 9anion transporter/exchanger-9solute carrier family 26 (anion exchanger), member 9
Modification date20240411
UniProtAcc

Q7LBE3


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneSLC26A9

GO:0000139

Golgi membrane

26801567

GeneSLC26A9

GO:0005254

chloride channel activity

17673510|18769029|19289574|20658517|22544634|32818062

GeneSLC26A9

GO:0005452

solute:inorganic anion antiporter activity

15800055|22544634

GeneSLC26A9

GO:0005789

endoplasmic reticulum membrane

26801567

GeneSLC26A9

GO:0005886

plasma membrane

26801567

GeneSLC26A9

GO:0006820

monoatomic anion transport

17673510

GeneSLC26A9

GO:0006821

chloride transport

17673510|18769029|20658517|22544634

GeneSLC26A9

GO:0009986

cell surface

17673510|20658517|22544634

GeneSLC26A9

GO:0010008

endosome membrane

26801567

GeneSLC26A9

GO:0010628

positive regulation of gene expression

20658517

GeneSLC26A9

GO:0016324

apical plasma membrane

20658517

GeneSLC26A9

GO:1902476

chloride transmembrane transport

15800055



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q7LBE3-1Q7LBE3-1_7ch1_A.pdb7CH1EM2.6A4784

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q7LBE3SLC26A9Q7LBE3-1Q7LBE3-2791887791791SubstitutionLLESLSAAGGCYPYRSESLVSPLFTRQALAAMDKPPAHSTPPTSALSLAAEGHLDFQLLRVSQKQKDKYNCAGLLYKLQKVSQSPHGSVSDGVRLSRT791887

check buttonMultiple sequence alignment of our canonical and alternatively spliced SLC26A9

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of SLC26A9
UniProt-idENSGENSTENSP
Q7LBE3-1ENSG00000174502.19ENST00000367135.8ENSP00000356103.3
Q7LBE3-2ENSG00000174502.19ENST00000340781.8ENSP00000341682.4
Q7LBE3-2ENSG00000174502.19ENST00000367134.2ENSP00000356102.2

UniProt-idNM IDNP ID
Q7LBE3-1NM_052934.3NP_443166.1
Q7LBE3-2NM_134325.2NP_599152.2

check buttonAmino acid sequences of our canonical and alternatively spliced SLC26A9
accession_idProtein sequence
Q7LBE3-1MSQPRPRYVVDRAAYSLTLFDDEFEKKDRTYPVGEKLRNAFRCSSAKIKAVVFGLLPVLSWLPKYKIKDYIIPDLLGGLSGGSIQVPQGM
AFALLANLPAVNGLYSSFFPLLTYFFLGGVHQMVPGTFAVISILVGNICLQLAPESKFQVFNNATNESYVDTAAMEAERLHVSATLACLT
AIIQMGLGFMQFGFVAIYLSESFIRGFMTAAGLQILISVLKYIFGLTIPSYTGPGSIVFTFIDICKNLPHTNIASLIFALISGAFLVLVK
ELNARYMHKIRFPIPTEMIVVVVATAISGGCKMPKKYHMQIVGEIQRGFPTPVSPVVSQWKDMIGTAFSLAIVSYVINLAMGRTLANKHG
YDVDSNQEMIALGCSNFFGSFFKIHVICCALSVTLAVDGAGGKSQVASLCVSLVVMITMLVLGIYLYPLPKSVLGALIAVNLKNSLKQLT
DPYYLWRKSKLDCCIWVVSFLSSFFLSLPYGVAVGVAFSVLVVVFQTQFRNGYALAQVMDTDIYVNPKTYNRAQDIQGIKIITYCSPLYF
ANSEIFRQKVIAKTGMDPQKVLLAKQKYLKKQEKRRMRPTQQRRSLFMKTKTVSLQELQQDFENAPPTDPNNNQTPANGTSVSYITFSPD
SSSPAQSEPPASAEAPGEPSDMLASVPPFVTFHTLILDMSGVSFVDLMGIKALAKLSSTYGKIGVKVFLVNIHAQVYNDISHGGVFEDGS
Q7LBE3-2MSQPRPRYVVDRAAYSLTLFDDEFEKKDRTYPVGEKLRNAFRCSSAKIKAVVFGLLPVLSWLPKYKIKDYIIPDLLGGLSGGSIQVPQGM
AFALLANLPAVNGLYSSFFPLLTYFFLGGVHQMVPGTFAVISILVGNICLQLAPESKFQVFNNATNESYVDTAAMEAERLHVSATLACLT
AIIQMGLGFMQFGFVAIYLSESFIRGFMTAAGLQILISVLKYIFGLTIPSYTGPGSIVFTFIDICKNLPHTNIASLIFALISGAFLVLVK
ELNARYMHKIRFPIPTEMIVVVVATAISGGCKMPKKYHMQIVGEIQRGFPTPVSPVVSQWKDMIGTAFSLAIVSYVINLAMGRTLANKHG
YDVDSNQEMIALGCSNFFGSFFKIHVICCALSVTLAVDGAGGKSQVASLCVSLVVMITMLVLGIYLYPLPKSVLGALIAVNLKNSLKQLT
DPYYLWRKSKLDCCIWVVSFLSSFFLSLPYGVAVGVAFSVLVVVFQTQFRNGYALAQVMDTDIYVNPKTYNRAQDIQGIKIITYCSPLYF
ANSEIFRQKVIAKTGMDPQKVLLAKQKYLKKQEKRRMRPTQQRRSLFMKTKTVSLQELQQDFENAPPTDPNNNQTPANGTSVSYITFSPD
SSSPAQSEPPASAEAPGEPSDMLASVPPFVTFHTLILDMSGVSFVDLMGIKALAKLSSTYGKIGVKVFLVNIHAQVYNDISHGGVFEDGS
LECKHVFPSIHDAVLFAQANARDVTPGHNFQGAPGDAELSLYDSEEDIRSYWDLEQEMFGSMFHAETLTALESLSAAGGCYPYRSESLVS

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
SLC26A9 (go to UniProt):Q7LBE3

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
Q7LBE3Topological domain490791Note=Cytoplasmic;Ontology_term=ECO:0000305;evidence=ECO:0000305Type=Substitution;Start=791;End=791


Gene Isoform Structures and Expression Levels for SLC26A9

check buttonGene structures of our canonical and alternative spliced genes of SLC26A9
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of SLC26A9

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 Q7LBE3-1
3D view using mol* of Q7LBE3-2


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 Q7LBE3-1
all structure
pLDDT distribution across the protein length of Q7LBE3-2
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 Q7LBE3-1
all structure
Ramachandran plot of Q7LBE3-2
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
Q7LBE3-11.123880.988171.1570.3760.9491.1940.1821.4210.1280.29494,95,97,133,136,137,140,214,218,221,222,228,229,2
30,231,232,233,235,236,237,240,477
Q7LBE3-21.1381061.187209.9160.4510.8221.051.3350.7561.7640.88495,97,130,133,134,136,137,138,214,218,221,230,231,
232,233,234,235,236,237,240,336,339,474,475,476,47
7,479,480

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 Q7LBE3-1_Q7LBE3-1_7ch1_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 Q7LBE3-1_7ch1_A_Q7LBE3-2.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 Q7LBE3-1_Q7LBE3-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q7LBE3-1_vs_Q7LBE3-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q7LBE3-1_vs_Q7LBE3-2.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 SLC26A9


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

Related Diseases to SLC26A9


check button Previous studies relating to the alternative splicing of SLC26A9 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in SLC26A9


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