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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:IQSEC2

Protein Summary

check button Gene summary
Gene name: IQSEC2
ASpdb.0 ID: 23096
Gene
Gene symbol

IQSEC2

Gene ID

23096

Gene nameIQ motif and Sec7 domain ArfGEF 2
SynonymsBRAG1|IQ-ArfGEF|MRX1|MRX18|MRX78|XLID1
Cytomap

Xp11.22

Type of geneprotein-coding
DescriptionIQ motif and SEC7 domain-containing protein 2IQ motif and Sec7 domain 2brefeldin A resistant Arf-guanine nucleotide exchange factor 1brefeldin A resistant Arf-guanine nucleotide exchange factor 1bbrefeldin A resistant Arf-guanine nucleotide exchange f
Modification date20240411
UniProtAcc

Q5JU85


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneIQSEC2

GO:0050804

modulation of chemical synaptic transmission

27009485

GeneIQSEC2

GO:0098685

Schaffer collateral - CA1 synapse

27009485

GeneIQSEC2

GO:0098696

regulation of neurotransmitter receptor localization to postsynaptic specialization membrane

27009485



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q5JU85-2Q5JU85-2_6fae_A.pdb6FAEX-ray2.35A7491094

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q5JU85IQSEC2Q5JU85-2Q5JU85-314889491245SubstitutionMEAGSGPPGGPGSESPNRAVEYLLELNNIIESQQQLLETQRRRIEELEGQLDQLTQENRDLREESQLHRGELHRDPHGARDSPGRESQYQNLRETQFHHRELRESQFHQAARDVGYPNREGAYQNREAVYRDKERDASYPLQDTTGYTARERDVAQCHLHHENPALGRERGGREAGPAHPGREKEAGYSAAVGVGPRPPRERGQLSRGASRSSSPGAGGGHSTSTSTSPATTLQRKSDGENSRTVMEPPGRSSRSTASHTLHQYCCPTQVLDSMKLTPSGRLAES140
Q5JU85IQSEC2Q5JU85-2Q5JU85-3148894911521154SubstitutionKRGVCY947949
Q5JU85IQSEC2Q5JU85-2Q5JU85-3148894911551488Deletionnonenone949949
Q5JU85IQSEC2Q5JU85-2Q5JU85-4148873173SubstitutionMEAGSGPPGGPGSESPNRAVEYLLELNNIIESQQQLLETQRRRIEELEGQLDQLTQENRDLREESQLHRGELHMEPPGRSSRSTASHTLHQYCCPTQVLDSMKLTPSGRLAESREEEEEEETEEEEEEDAHQFCCPASECSSPSSR173
Q5JU85IQSEC2Q5JU85-2Q5JU85-4148873741488Deletionnonenone7373

check buttonMultiple sequence alignment of our canonical and alternatively spliced IQSEC2

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of IQSEC2
UniProt-idENSGENSTENSP
Q5JU85-2ENSG00000124313.19ENST00000642864.1ENSP00000495726.1
Q5JU85-2ENSG00000124313.19ENST00000674510.1ENSP00000502054.1
Q5JU85-3ENSG00000124313.19ENST00000375365.2ENSP00000364514.2
Q5JU85-4ENSG00000124313.19ENST00000639161.2ENSP00000491796.1

UniProt-idNM IDNP ID
Q5JU85-2NM_001111125.2NP_001104595.1
Q5JU85-3NM_015075.1NP_055890.1
Q5JU85-4NM_001243197.1NP_001230126.1

check buttonAmino acid sequences of our canonical and alternatively spliced IQSEC2
accession_idProtein sequence
Q5JU85-2MEAGSGPPGGPGSESPNRAVEYLLELNNIIESQQQLLETQRRRIEELEGQLDQLTQENRDLREESQLHRGELHRDPHGARDSPGRESQYQ
NLRETQFHHRELRESQFHQAARDVGYPNREGAYQNREAVYRDKERDASYPLQDTTGYTARERDVAQCHLHHENPALGRERGGREAGPAHP
GREKEAGYSAAVGVGPRPPRERGQLSRGASRSSSPGAGGGHSTSTSTSPATTLQRKSDGENSRTVSVEGDAPGSDLSTAVDSPGSQPPYR
LSQLPPSSSHMGGPPAGVGLPWAQRARLQPASVALRKQEEEEIKRSKALSDSYELSTDLQDKKVEMLERKYGGSFLSRRAARTIQTAFRQ
YRMNKNFERLRSSASESRMSRRIILSNMRMQFSFEEYEKAQNPAYFEGKPASLDEGAMAGARSHRLERGLPYGGSCGGGIDGGGSSVTTS
GEFSNDITELEDSFSKQVKSLAESIDEALNCHPSGPMSEEPGSAQLEKRESKEQQEDSSATSFSDLPLYLDDTVPQQSPERLPSTEPPPQ
GRPEFWAPAPLPPVPPPVPSGTREDGSREEGTRRGPGCLECRDFRLRAAHLPLLTIEPPSDSSVDLSDRSDRGSVHRQLVYEADGCSPHG
TLKHKGPPGRAPIPHRHYPAPEGPAPAPPGPLPPAPNSGTGPSGVAGGRRLGKCEAAGENSDGGDNESLESSSNSNETINCSSGSSSRDS
LREPPATGLCKQTYQRETRHSWDSPAFNNDVVQRRHYRIGLNLFNKKPEKGIQYLIERGFLSDTPVGVAHFILERKGLSRQMIGEFLGNR
QKQFNRDVLDCVVDEMDFSSMDLDDALRKFQSHIRVQGEAQKVERLIEAFSQRYCVCNPALVRQFRNPDTIFILAFAIILLNTDMYSPSV
KAERKMKLDDFIKNLRGVDNGEDIPRDLLVGIYQRIQGRELRTNDDHVSQVQAVERMIVGKKPVLSLPHRRLVCCCQLYEVPDPNRPQRL
GLHQREVFLFNDLLVVTKIFQKKKILVTYSFRQSFPLVEMHMQLFQNSYYQFGIKLLSAVPGGERKVLIIFNAPSLQDRLRFTSDLRESI
AEVQEMEKYRVESELEKQKGMMRPNASQPGGAKDSVNGTMARSSLEDTYGAGDGLKRGALSSSLRDLSDAGKRGRRNSVGSLDSTIEGSV
ISSPRPHQRMPPPPPPPPPEEYKSQRPVSNSSSFLGSLFGSKRGKGPFQMPPPPTGQASASSSSASSTHHHHHHHHHGHSHGGLGVLPDG
QSKLQALHAQYCQGPGPAPPPYLPPQQPSLPPPPQQPPPLPQLGSIPPPPASAPPVGPHRHFHAHGPVPGPQHYTLGRPGRAPRRGAGGH
PQFAPHGRHPLHQPTSPLPLYSPAPQHPPAHKQGPKHFIFSHHPQMMPAAGAAGGPGSRPPGGSYSHPHHPQSPLSPHSPIPPHPSYPPL
Q5JU85-3MEPPGRSSRSTASHTLHQYCCPTQVLDSMKLTPSGRLAESSVEGDAPGSDLSTAVDSPGSQPPYRLSQLPPSSSHMGGPPAGVGLPWAQR
ARLQPASVALRKQEEEEIKRSKALSDSYELSTDLQDKKVEMLERKYGGSFLSRRAARTIQTAFRQYRMNKNFERLRSSASESRMSRRIIL
SNMRMQFSFEEYEKAQNPAYFEGKPASLDEGAMAGARSHRLERGLPYGGSCGGGIDGGGSSVTTSGEFSNDITELEDSFSKQVKSLAESI
DEALNCHPSGPMSEEPGSAQLEKRESKEQQEDSSATSFSDLPLYLDDTVPQQSPERLPSTEPPPQGRPEFWAPAPLPPVPPPVPSGTRED
GSREEGTRRGPGCLECRDFRLRAAHLPLLTIEPPSDSSVDLSDRSDRGSVHRQLVYEADGCSPHGTLKHKGPPGRAPIPHRHYPAPEGPA
PAPPGPLPPAPNSGTGPSGVAGGRRLGKCEAAGENSDGGDNESLESSSNSNETINCSSGSSSRDSLREPPATGLCKQTYQRETRHSWDSP
AFNNDVVQRRHYRIGLNLFNKKPEKGIQYLIERGFLSDTPVGVAHFILERKGLSRQMIGEFLGNRQKQFNRDVLDCVVDEMDFSSMDLDD
ALRKFQSHIRVQGEAQKVERLIEAFSQRYCVCNPALVRQFRNPDTIFILAFAIILLNTDMYSPSVKAERKMKLDDFIKNLRGVDNGEDIP
RDLLVGIYQRIQGRELRTNDDHVSQVQAVERMIVGKKPVLSLPHRRLVCCCQLYEVPDPNRPQRLGLHQREVFLFNDLLVVTKIFQKKKI
LVTYSFRQSFPLVEMHMQLFQNSYYQFGIKLLSAVPGGERKVLIIFNAPSLQDRLRFTSDLRESIAEVQEMEKYRVESELEKQKGMMRPN
Q5JU85-4

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
IQSEC2 (go to UniProt):Q5JU85

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
Q5JU85Domain347376Note=IQ;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00116Type=Deletion;Start=74;End=1488
Q5JU85Domain746939Note=SEC7;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00189Type=Deletion;Start=74;End=1488
Q5JU85Region5088Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Region5088Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=73
Q5JU85Region5088Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region107147Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Region107147Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region161290Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Region161290Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region479578Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region623726Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region10911259Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1152;End=1154
Q5JU85Region10911259Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Region10911259Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Region12711488Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Region12711488Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Coiled coil2374Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Substitution;Start=1;End=245
Q5JU85Coiled coil2374Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Substitution;Start=1;End=73
Q5JU85Coiled coil2374Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=74;End=1488
Q5JU85Compositional bias5082Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Compositional bias5082Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=73
Q5JU85Compositional bias5082Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias125139Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Compositional bias125139Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias161181Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Compositional bias161181Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias206240Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Substitution;Start=1;End=245
Q5JU85Compositional bias206240Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias258279Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias531560Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias563578Note=Basic and acidic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias642668Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias694722Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias11101124Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias11581172Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias11581172Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias11761193Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias11761193Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias11941208Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias11941208Note=Polar residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias12371251Note=Basic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias12371251Note=Basic residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias12741316Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias12741316Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias13661380Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias13661380Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488
Q5JU85Compositional bias14231474Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1155;End=1488
Q5JU85Compositional bias14231474Note=Pro residues;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=74;End=1488


Gene Isoform Structures and Expression Levels for IQSEC2

check buttonGene structures of our canonical and alternative spliced genes of IQSEC2
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of IQSEC2

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 Q5JU85-2
3D view using mol* of Q5JU85-3
3D view using mol* of Q5JU85-4


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 Q5JU85-2
all structure
pLDDT distribution across the protein length of Q5JU85-3
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 Q5JU85-2
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
Q5JU85-21.0381171.068381.0730.5910.7260.8980.8680.9450.9190.712584,585,586,587,588,589,590,591,592,593,950,954,95
7,972,974,975,976,977,978,996,998,1017,1019,1064,1
067,1068,1071
Q5JU85-31.066961.145238.0420.570.6830.8341.4840.5692.6091.128557,558,561,562,565,764,765,796,797,798,821,823,87
7,878,881,882,884,885,888,889,892

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 Q5JU85-2_Q5JU85-2_6fae_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 Q5JU85-2_6fae_A_Q5JU85-3.pdb
3D view using mol* of Q5JU85-2_6fae_A_Q5JU85-4.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 Q5JU85-2_Q5JU85-3.pdb
3D view using mol* of Q5JU85-2_Q5JU85-4.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q5JU85-2_vs_Q5JU85-3.png
all structure<
./stats/secondary_structure/figure/Q5JU85-2_vs_Q5JU85-4.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q5JU85-2_vs_Q5JU85-3.png
all structure<
./stats/relative_asa/Q5JU85-2_vs_Q5JU85-4.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 IQSEC2


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

Related Diseases to IQSEC2


check button Previous studies relating to the alternative splicing of IQSEC2 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in IQSEC2


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