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:ASIC1

Protein Summary

check button Gene summary
Gene name: ASIC1
ASpdb.0 ID: 41
Gene
Gene symbol

ASIC1

Gene ID

41

Gene nameacid sensing ion channel subunit 1
SynonymsACCN2|ASIC|BNaC2
Cytomap

12q13.12

Type of geneprotein-coding
Descriptionacid-sensing ion channel 1Cation channel, amiloride-sensitive, neuronal, 2acid sensing (proton gated) ion channel 1acid-sensing ion channel 1a proteinamiloride-sensitive cation channel 2, neuronalbrain sodium channel 2
Modification date20240411
UniProtAcc

P78348


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneASIC1

GO:0005794

Golgi apparatus

-

GeneASIC1

GO:0005886

plasma membrane

-

GeneASIC1

GO:0035725

sodium ion transmembrane transport

22760635

GeneASIC1

GO:0071467

cellular response to pH

22760635

GeneASIC1

GO:0160128

pH-gated monoatomic ion channel activity

22760635



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P78348-2P78348-2_6l6i_B.pdb6L6IX-ray3.24B25458

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P78348ASIC1P78348-2P78348-1528574433433SubstitutionGGELLMTPVPFSCHGHGVAPYHPKAGCSLLSHEGPPPQRPFPKPCCLG433479
P78348ASIC1P78348-2P78348-35285621185SubstitutionMELKAEEEEVGGVQPVSIQAFASSSTLHGLAHIFSYERLSLKRALWALCFLGSLAVLLCVCTERVQYYFHYHHVTKLDEVAASQLTFPAVTLCNLNEFRFSQVSKNDLYHAGELLALLNNRYEIPDTQMADEKQLEILQDKANFRSFKPKPFNMREFYDRAGHDIRDMLLSCHFRGEVCSAEDFKMPIQIFCSMSFSSGEEAPGPLGDIWGPHHHQQQQDISESEEEEEEKEKEAVRKEASEGHSPMDLVAFANSCTLHGTNHIFVEGGPGPRQVLWAVAFVLALGAFLCQVGDRVAYYLSYPHVTLLNEVATTELAFPAVTLCNTNAVRLSQLSYPDLLYLAPMLGLDESDDPGVPLAPPGPEAFSGEPFNLHRFYNRSCHRLEDMLLYCSYQGGPCGPHNFS1219

check buttonMultiple sequence alignment of our canonical and alternatively spliced ASIC1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of ASIC1
UniProt-idENSGENSTENSP
P78348-2ENSG00000110881.12ENST00000447966.7ENSP00000400228.3
P78348-1ENSG00000110881.12ENST00000228468.8ENSP00000228468.4
P78348-3ENSG00000110881.12ENST00000552438.5ENSP00000450247.1

UniProt-idNM IDNP ID
P78348-2NM_001095.3NP_001086.2
P78348-1NM_020039.3NP_064423.2
P78348-3NM_001256830.1NP_001243759.1

check buttonAmino acid sequences of our canonical and alternatively spliced ASIC1
accession_idProtein sequence
P78348-2MELKAEEEEVGGVQPVSIQAFASSSTLHGLAHIFSYERLSLKRALWALCFLGSLAVLLCVCTERVQYYFHYHHVTKLDEVAASQLTFPAV
TLCNLNEFRFSQVSKNDLYHAGELLALLNNRYEIPDTQMADEKQLEILQDKANFRSFKPKPFNMREFYDRAGHDIRDMLLSCHFRGEVCS
AEDFKVVFTRYGKCYTFNSGRDGRPRLKTMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPFIDQLGFGVAPGFQ
TFVACQEQRLIYLPPPWGTCKAVTMDSDLDFFDSYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDQEY
CVCEMPCNLTRYGKELSMVKIPSKASAKYLAKKFNKSEQYIGENILVLDIFFEVLNYETIEQKKAYEIAGLLGDIGGQMGLFIGASILTV
P78348-1MELKAEEEEVGGVQPVSIQAFASSSTLHGLAHIFSYERLSLKRALWALCFLGSLAVLLCVCTERVQYYFHYHHVTKLDEVAASQLTFPAV
TLCNLNEFRFSQVSKNDLYHAGELLALLNNRYEIPDTQMADEKQLEILQDKANFRSFKPKPFNMREFYDRAGHDIRDMLLSCHFRGEVCS
AEDFKVVFTRYGKCYTFNSGRDGRPRLKTMKGGTGNGLEIMLDIQQDEYLPVWGETDETSFEAGIKVQIHSQDEPPFIDQLGFGVAPGFQ
TFVACQEQRLIYLPPPWGTCKAVTMDSDLDFFDSYSITACRIDCETRYLVENCNCRMVHMPGDAPYCTPEQYKECADPALDFLVEKDQEY
CVCEMPCNLTRYGKELSMVKIPSKASAKYLAKKFNKSEQYIGENILVLDIFFEVLNYETIEQKKAYEIAGLLGELLMTPVPFSCHGHGVA
PYHPKAGCSLLSHEGPPPQRPFPKPCCLGDIGGQMGLFIGASILTVLELFDYAYEVIKHKLCRRGKCQKEAKRSSADKGVALSLDDVKRH
P78348-3MPIQIFCSMSFSSGEEAPGPLGDIWGPHHHQQQQDISESEEEEEEKEKEAVRKEASEGHSPMDLVAFANSCTLHGTNHIFVEGGPGPRQV
LWAVAFVLALGAFLCQVGDRVAYYLSYPHVTLLNEVATTELAFPAVTLCNTNAVRLSQLSYPDLLYLAPMLGLDESDDPGVPLAPPGPEA
FSGEPFNLHRFYNRSCHRLEDMLLYCSYQGGPCGPHNFSVVFTRYGKCYTFNSGRDGRPRLKTMKGGTGNGLEIMLDIQQDEYLPVWGET
DETSFEAGIKVQIHSQDEPPFIDQLGFGVAPGFQTFVACQEQRLIYLPPPWGTCKAVTMDSDLDFFDSYSITACRIDCETRYLVENCNCR
MVHMPGDAPYCTPEQYKECADPALDFLVEKDQEYCVCEMPCNLTRYGKELSMVKIPSKASAKYLAKKFNKSEQYIGENILVLDIFFEVLN
YETIEQKKAYEIAGLLGDIGGQMGLFIGASILTVLELFDYAYEVIKHKLCRRGKCQKEAKRSSADKGVALSLDDVKRHNPCESLRGHPAG

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
ASIC1 (go to UniProt):P78348

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
P78348Topological domain145Note=Cytoplasmic;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Substitution;Start=1;End=185
P78348Transmembrane4669Note=Helical;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Substitution;Start=1;End=185
P78348Topological domain70427Note=Extracellular;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Substitution;Start=1;End=185
P78348Transmembrane428454Note=Discontinuously helical;Ontology_term=ECO:0000250;evidence=ECO:0000250Type=Substitution;Start=433;End=433


Gene Isoform Structures and Expression Levels for ASIC1

check buttonGene structures of our canonical and alternative spliced genes of ASIC1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of ASIC1

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 P78348-2
3D view using mol* of P78348-1
3D view using mol* of P78348-3


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 P78348-2
all structure
pLDDT distribution across the protein length of P78348-1
all structure
pLDDT distribution across the protein length of P78348-3
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 P78348-2
all structure
Ramachandran plot of P78348-1
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
P78348-21.0131000.942288.120.5690.7170.9410.0571.3130.0430.772155,186,187,188,189,190,200,201,206,252,253,254,25
5,256,257,258,259,302,303,304,312,315,326,328,329,
330,331,336
P78348-11.0411171.048245.2450.4820.7590.9520.611.0670.5721.11789,91,155,185,187,188,189,190,196,199,201,250,252,
253,254,255,256,257,259,302,312,315,326,328,329,33
0,331,336,350
P78348-31.059970.953246.6170.520.8031.0790.3551.3940.2550.963219,221,222,223,224,230,233,235,284,286,287,288,28
9,290,291,292,293,336,346,349,360,362,363,364,365,
370,384

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 P78348-2_P78348-2_6l6i_B.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 P78348-2_6l6i_B_P78348-1.pdb
3D view using mol* of P78348-2_6l6i_B_P78348-3.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 P78348-2_P78348-1.pdb
3D view using mol* of P78348-2_P78348-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P78348-2_vs_P78348-1.png
all structure<
./stats/secondary_structure/figure/P78348-2_vs_P78348-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P78348-2_vs_P78348-1.png
all structure<
./stats/relative_asa/P78348-2_vs_P78348-3.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 ASIC1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P78348ASIC1DB00594Amilorideapprovedinhibitor

Related Diseases to ASIC1


check button Previous studies relating to the alternative splicing of ASIC1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in ASIC1


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