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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:APH1A

Protein Summary

check button Gene summary
Gene name: APH1A
ASpdb.0 ID: 51107
Gene
Gene symbol

APH1A

Gene ID

51107

Gene nameaph-1 homolog A, gamma-secretase subunit
Synonyms6530402N02Rik|APH-1|APH-1A|CGI-78
Cytomap

1q21.2

Type of geneprotein-coding
Descriptiongamma-secretase subunit APH-1AAPH1A gamma secretase subunitanterior pharynx defective 1 homolog Aaph-1alphapresenilin-stabilization factor
Modification date20240305
UniProtAcc

Q96BI3


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneAPH1A

GO:0005783

endoplasmic reticulum

15274632

GeneAPH1A

GO:0005794

Golgi apparatus

15274632

GeneAPH1A

GO:0005886

plasma membrane

15274632

GeneAPH1A

GO:0006509

membrane protein ectodomain proteolysis

15274632

GeneAPH1A

GO:0007220

Notch receptor processing

27608597

GeneAPH1A

GO:0016020

membrane

25043039|26280335

GeneAPH1A

GO:0016485

protein processing

15274632|27608597

GeneAPH1A

GO:0031293

membrane protein intracellular domain proteolysis

15274632

GeneAPH1A

GO:0034205

amyloid-beta formation

27608597

GeneAPH1A

GO:0042982

amyloid precursor protein metabolic process

25043039|26280335

GeneAPH1A

GO:0042987

amyloid precursor protein catabolic process

15274632|27608597

GeneAPH1A

GO:0043085

positive regulation of catalytic activity

15274632

GeneAPH1A

GO:0070765

gamma-secretase complex

12297508|25043039|26280335



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q96BI3-1Q96BI3-1_6iyc_C.pdb6IYCEM2.6C2244

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q96BI3APH1AQ96BI3-1Q96BI3-2265247246247SubstitutionRRKD246247
Q96BI3APH1AQ96BI3-1Q96BI3-2265247248265Deletionnonenone247247
Q96BI3APH1AQ96BI3-1Q96BI3-326519539120SubstitutionAFFWLVSLLLASVVWFILVHVTDRSDARLQYGLLIFGAAVSVLLQEVFRFAYYKLLKKADEGLASLSEDGRSPISIRQMAYVRCSALPTTSCLI3950

check buttonMultiple sequence alignment of our canonical and alternatively spliced APH1A

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of APH1A
UniProt-idENSGENSTENSP
Q96BI3-1ENSG00000117362.13ENST00000369109.8ENSP00000358105.3
Q96BI3-2ENSG00000117362.13ENST00000360244.8ENSP00000353380.4
Q96BI3-3ENSG00000117362.13ENST00000414276.6ENSP00000397473.2

UniProt-idNM IDNP ID
Q96BI3-1NM_001077628.2NP_001071096.1
Q96BI3-2NM_016022.3NP_057106.2
Q96BI3-3NM_001243772.1NP_001230701.1

check buttonAmino acid sequences of our canonical and alternatively spliced APH1A
accession_idProtein sequence
Q96BI3-1MGAAVFFGCTFVAFGPAFALFLITVAGDPLRVIILVAGAFFWLVSLLLASVVWFILVHVTDRSDARLQYGLLIFGAAVSVLLQEVFRFAY
YKLLKKADEGLASLSEDGRSPISIRQMAYVSGLSFGIISGVFSVINILADALGPGVVGIHGDSPYYFLTSAFLTAAIILLHTFWGVVFFD
Q96BI3-2MGAAVFFGCTFVAFGPAFALFLITVAGDPLRVIILVAGAFFWLVSLLLASVVWFILVHVTDRSDARLQYGLLIFGAAVSVLLQEVFRFAY
YKLLKKADEGLASLSEDGRSPISIRQMAYVSGLSFGIISGVFSVINILADALGPGVVGIHGDSPYYFLTSAFLTAAIILLHTFWGVVFFD
Q96BI3-3MGAAVFFGCTFVAFGPAFALFLITVAGDPLRVIILVAGRCSALPTTSCLISGLSFGIISGVFSVINILADALGPGVVGIHGDSPYYFLTS
AFLTAAIILLHTFWGVVFFDACERRRYWALGLVVGSHLLTSGLTFLNPWYEASLLPIYAVTVSMGLWAFITAGGSLRSIQRSLLCRRQED

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
APH1A (go to UniProt):Q96BI3

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
Q96BI3Transmembrane3252Note=Helical%3B Name%3D2;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:26280335;Dbxref=PMID:26280335Type=Substitution;Start=39;End=120
Q96BI3Topological domain5368"Note=Lumenal;Ontology_term=ECO:0000269ECO:0000305;evidence=ECO:0000269|PubMed:26280335
Q96BI3Transmembrane6989Note=Helical%3B Name%3D3;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:26280335;Dbxref=PMID:26280335Type=Substitution;Start=39;End=120
Q96BI3Topological domain90118"Note=Cytoplasmic;Ontology_term=ECO:0000269ECO:0000305;evidence=ECO:0000269|PubMed:26280335
Q96BI3Transmembrane119139Note=Helical%3B Name%3D4;Ontology_term=ECO:0000269;evidence=ECO:0000269|PubMed:26280335;Dbxref=PMID:26280335Type=Substitution;Start=39;End=120
Q96BI3Topological domain235265"Note=Cytoplasmic;Ontology_term=ECO:0000269ECO:0000305;evidence=ECO:0000269|PubMed:26280335
Q96BI3Topological domain235265"Note=Cytoplasmic;Ontology_term=ECO:0000269ECO:0000305;evidence=ECO:0000269|PubMed:26280335


Gene Isoform Structures and Expression Levels for APH1A

check buttonGene structures of our canonical and alternative spliced genes of APH1A
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of APH1A

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 Q96BI3-1
3D view using mol* of Q96BI3-2
3D view using mol* of Q96BI3-3


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 Q96BI3-1
all structure
pLDDT distribution across the protein length of Q96BI3-2
all structure
pLDDT distribution across the protein length of Q96BI3-3
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 Q96BI3-1
all structure
Ramachandran plot of Q96BI3-3
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
Q96BI3-11.078851.156406.4550.7050.7360.7761.3970.4682.9882.08142,46,49,50,53,72,75,76,79,80,83,129,132,133,137,1
60,163,164,167,171,197,201,204,205
Q96BI3-21.076891.149400.2810.6980.730.7721.3210.542.4440.81842,46,49,50,53,72,75,76,79,80,83,129,132,133,137,1
56,159,160,163,164,167,171,197,201,204,207,210,213
,214
Q96BI3-30.922890.892176.3020.5950.6440.910.3021.170.2582.15440,41,42,43,44,45,48,49,106,107,109,110,111,112,11
3,114,116,118,119,157,160,161,162,163

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 Q96BI3-1_Q96BI3-1_6iyc_C.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 Q96BI3-1_6iyc_C_Q96BI3-2.pdb
3D view using mol* of Q96BI3-1_6iyc_C_Q96BI3-3.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 Q96BI3-1_Q96BI3-2.pdb
3D view using mol* of Q96BI3-1_Q96BI3-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q96BI3-1_vs_Q96BI3-2.png
all structure<
./stats/secondary_structure/figure/Q96BI3-1_vs_Q96BI3-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q96BI3-1_vs_Q96BI3-2.png
all structure<
./stats/relative_asa/Q96BI3-1_vs_Q96BI3-3.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 APH1A


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
Q96BI3APH1ADB05171E-2012investigational
Q96BI3APH1ADB12852MK-0752investigationalinhibitor

Related Diseases to APH1A


check button Previous studies relating to the alternative splicing of APH1A and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in APH1A


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