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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:HEG1

Protein Summary

check button Gene summary
Gene name: HEG1
ASpdb.0 ID: 57493
Gene
Gene symbol

HEG1

Gene ID

57493

Gene nameheart development protein with EGF like domains 1
SynonymsHEG|MST112|MSTP112
Cytomap

3q21.2

Type of geneprotein-coding
Descriptionprotein HEG homolog 1heart of glass
Modification date20240416
UniProtAcc

Q9ULI3


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneHEG1

GO:0005911

cell-cell junction

26780829

GeneHEG1

GO:1905709

negative regulation of membrane permeability

26780829

GeneHEG1

GO:2000299

negative regulation of Rho-dependent protein serine/threonine kinase activity

26780829



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q9ULI3-1Q9ULI3-1_3u7d_B.pdb3U7DX-ray2.49B13751381

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q9ULI3HEG1Q9ULI3-1Q9ULI3-2138110129861012SubstitutionVNSCAVNPCLHNGECVADNTSRGYHCRGKTQSHKHMLTARPSPALRATWGSGFM9861012
Q9ULI3HEG1Q9ULI3-1Q9ULI3-21381101210131381Deletionnonenone10121012

check buttonMultiple sequence alignment of our canonical and alternatively spliced HEG1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of HEG1
UniProt-idENSGENSTENSP
Q9ULI3-1ENSG00000173706.15ENST00000311127.9ENSP00000311502.3

UniProt-idNM IDNP ID
Q9ULI3-1NM_020733.1NP_065784.1

check buttonAmino acid sequences of our canonical and alternatively spliced HEG1
accession_idProtein sequence
Q9ULI3-1MASPRASRWPPPLLLLLLPLLLLPPAAPGTRDPPPSPARRALSLAPLAGAGLELQLERRPEREPPPTPPRERRGPATPGPSYRAPEPGAA
TQRGPSGRAPRGGSADAAWKHWPESNTEAHVENITFYQNQEDFSTVSSKEGVMVQTSGKSHAASDAPENLTLLAETADARGRSGSSSRTN
FTILPVGYSLEIATALTSQSGNLASESLHLPSSSSEFDERIAAFQTKSGTASEMGTERAMGLSEEWTVHSQEATTSAWSPSFLPALEMGE
LTTPSRKRNSSGPDLSWLHFYRTAASSPLLDLSSSSESTEKLNNSTGLQSSSVSQTKTMHVATVFTDGGPRTLRSLTVSLGPVSKTEGFP
KDSRIATTSSSVLLSPSAVESRRNSRVTGNPGDEEFIEPSTENEFGLTSLRWQNDSPTFGEHQLASSSEVQNGSPMSQTETVSRSVAPMR
GGEITAHWLLTNSTTSADVTGSSASYPEGVNASVLTQFSDSTVQSGGSHTALGDRSYSESSSTSSSESLNSSAPRGERSIAGISYGQVRG
TAIEQRTSSDHTDHTYLSSTFTKGERALLSITDNSSSSDIVESSTSYIKISNSSHSEYSSFFHAQTERSNISSYDGEYAQPSTESPVLHT
SNLPSYTPTINMPNTSVVLDTDAEFVSDSSSSSSSSSSSSSSGPPLPLPSVSQSHHLFSSILPSTRASVHLLKSTSDASTPWSSSPSPLP
VSLTTSTSAPLSVSQTTLPQSSSTPVLPRARETPVTSFQTSTMTSFMTMLHSSQTADLKSQSTPHQEKVITESKSPSLVSLPTESTKAVT
TNSPLPPSLTESSTEQTLPATSTNLAQMSPTFTTTILKTSQPLMTTPGTLSSTASLVTGPIAVQTTAGKQLSLTHPEILVPQISTEGGIS
TERNRVIVDATTGLIPLTSVPTSAKEMTTKLGVTAEYSPASRSLGTSPSPQTTVVSTAEDLAPKSATFAVQSSTQSPTTVSSSASVNSCA
VNPCLHNGECVADNTSRGYHCRCPPSWQGDDCSVDVNECLSNPCPSTAMCNNTQGSFICKCPVGYQLEKGICNLVRTFVTEFKLKRTFLN
TTVEKHSDLQEVENEITKTLNMCFSALPSYIRSTVHASRESNAVVISLQTTFSLASNVTLFDLADRMQKCVNSCKSSAEVCQLLGSQRRI
FRAGSLCKRKSPECDKDTSICTDLDGVALCQCKSGYFQFNKMDHSCRACEDGYRLENETCMSCPFGLGGLNCGNPYQLITVVIAAAGGGL
LLILGIALIVTCCRKNKNDISKLIFKSGDFQMSPYAEYPKNPRSQEWGREAIEMHENGSTKNLLQMTDVYYSPTSVRNPELERNGLYPAY
Q9ULI3-2MASPRASRWPPPLLLLLLPLLLLPPAAPGTRDPPPSPARRALSLAPLAGAGLELQLERRPEREPPPTPPRERRGPATPGPSYRAPEPGAA
TQRGPSGRAPRGGSADAAWKHWPESNTEAHVENITFYQNQEDFSTVSSKEGVMVQTSGKSHAASDAPENLTLLAETADARGRSGSSSRTN
FTILPVGYSLEIATALTSQSGNLASESLHLPSSSSEFDERIAAFQTKSGTASEMGTERAMGLSEEWTVHSQEATTSAWSPSFLPALEMGE
LTTPSRKRNSSGPDLSWLHFYRTAASSPLLDLSSSSESTEKLNNSTGLQSSSVSQTKTMHVATVFTDGGPRTLRSLTVSLGPVSKTEGFP
KDSRIATTSSSVLLSPSAVESRRNSRVTGNPGDEEFIEPSTENEFGLTSLRWQNDSPTFGEHQLASSSEVQNGSPMSQTETVSRSVAPMR
GGEITAHWLLTNSTTSADVTGSSASYPEGVNASVLTQFSDSTVQSGGSHTALGDRSYSESSSTSSSESLNSSAPRGERSIAGISYGQVRG
TAIEQRTSSDHTDHTYLSSTFTKGERALLSITDNSSSSDIVESSTSYIKISNSSHSEYSSFFHAQTERSNISSYDGEYAQPSTESPVLHT
SNLPSYTPTINMPNTSVVLDTDAEFVSDSSSSSSSSSSSSSSGPPLPLPSVSQSHHLFSSILPSTRASVHLLKSTSDASTPWSSSPSPLP
VSLTTSTSAPLSVSQTTLPQSSSTPVLPRARETPVTSFQTSTMTSFMTMLHSSQTADLKSQSTPHQEKVITESKSPSLVSLPTESTKAVT
TNSPLPPSLTESSTEQTLPATSTNLAQMSPTFTTTILKTSQPLMTTPGTLSSTASLVTGPIAVQTTAGKQLSLTHPEILVPQISTEGGIS
TERNRVIVDATTGLIPLTSVPTSAKEMTTKLGVTAEYSPASRSLGTSPSPQTTVVSTAEDLAPKSATFAVQSSTQSPTTVSSSASGKTQS

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
HEG1 (go to UniProt):Q9ULI3

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
Q9ULI3Topological domain301248Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Substitution;Start=986;End=1012
Q9ULI3Topological domain301248Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1013;End=1381
Q9ULI3Transmembrane12491269Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1013;End=1381
Q9ULI3Topological domain12701381Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1013;End=1381
Q9ULI3Domain9851023Note=EGF-like 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00076Type=Substitution;Start=986;End=1012
Q9ULI3Domain9851023Note=EGF-like 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00076Type=Deletion;Start=1013;End=1381
Q9ULI3Domain10251063Note=EGF-like 2%3B calcium-binding;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00076Type=Deletion;Start=1013;End=1381


Gene Isoform Structures and Expression Levels for HEG1

check buttonGene structures of our canonical and alternative spliced genes of HEG1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of HEG1

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 Q9ULI3-1
3D view using mol* of Q9ULI3-2


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 Q9ULI3-1
all structure
pLDDT distribution across the protein length of Q9ULI3-2
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 Q9ULI3-1
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
Q9ULI3-11.017691.034160.8670.5370.8221.1512.5960.7363.5251.2521074,1078,1079,1081,1082,1083,1086,1088,1089,1092,
1095,1096,1117,1124,1126,1156,1157,1159,1160,1162,
1163,1166
Q9ULI3-20.461220.40427.7830.8050.4410.6380.0580.9230.0632.67410,411,412,413,675,676,677

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 Q9ULI3-1_Q9ULI3-1_3u7d_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 Q9ULI3-1_3u7d_B_Q9ULI3-2.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 Q9ULI3-1_Q9ULI3-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q9ULI3-1_vs_Q9ULI3-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q9ULI3-1_vs_Q9ULI3-2.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 HEG1


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

Related Diseases to HEG1


check button Previous studies relating to the alternative splicing of HEG1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in HEG1


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