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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:CNTNAP2

Protein Summary

check button Gene summary
Gene name: CNTNAP2
ASpdb.0 ID: 26047
Gene
Gene symbol

CNTNAP2

Gene ID

26047

Gene namecontactin associated protein 2
SynonymsAUTS15|CASPR2|CDFE|NRXN4|PTHSL1
Cytomap

7q35-q36.1

Type of geneprotein-coding
Descriptioncontactin-associated protein-like 2cell recognition molecule Caspr2contactin associated protein like 2homolog of Drosophila neurexin IV
Modification date20240310
UniProtAcc

Q9UHC6


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneCNTNAP2

GO:0005769

early endosome

19706678

GeneCNTNAP2

GO:0005794

Golgi apparatus

19166515

GeneCNTNAP2

GO:0008076

voltage-gated potassium channel complex

10624965

GeneCNTNAP2

GO:0008283

cell population proliferation

29028946

GeneCNTNAP2

GO:0009986

cell surface

19706678

GeneCNTNAP2

GO:0016020

membrane

10624965

GeneCNTNAP2

GO:0030673

axolemma

19706678



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
Q9UHC6-1Q9UHC6-1_5y4m_A.pdb5Y4MX-ray1.31A35181

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
Q9UHC6CNTNAP2Q9UHC6-1Q9UHC6-2133110811223Deletionnonenone00

check buttonMultiple sequence alignment of our canonical and alternatively spliced CNTNAP2

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of CNTNAP2
UniProt-idENSGENSTENSP
Q9UHC6-1ENSG00000174469.23ENST00000361727.8ENSP00000354778.3
Q9UHC6-2ENSG00000174469.23ENST00000463592.3ENSP00000486292.1
Q9UHC6-2ENSG00000278728.2ENST00000613345.2ENSP00000481057.1

UniProt-idNM IDNP ID
Q9UHC6-1NM_014141.5NP_054860.1

check buttonAmino acid sequences of our canonical and alternatively spliced CNTNAP2
accession_idProtein sequence
Q9UHC6-1MQAAPRAGCGAALLLWIVSSCLCRAWTAPSTSQKCDEPLVSGLPHVAFSSSSSISGSYSPGYAKINKRGGAGGWSPSDSDHYQWLQVDFG
NRKQISAIATQGRYSSSDWVTQYRMLYSDTGRNWKPYHQDGNIWAFPGNINSDGVVRHELQHPIIARYVRIVPLDWNGEGRIGLRIEVYG
CSYWADVINFDGHVVLPYRFRNKKMKTLKDVIALNFKTSESEGVILHGEGQQGDYITLELKKAKLVLSLNLGSNQLGPIYGHTSVMTGSL
LDDHHWHSVVIERQGRSINLTLDRSMQHFRTNGEFDYLDLDYEITFGGIPFSGKPSSSSRKNFKGCMESINYNGVNITDLARRKKLEPSN
VGNLSFSCVEPYTVPVFFNATSYLEVPGRLNQDLFSVSFQFRTWNPNGLLVFSHFADNLGNVEIDLTESKVGVHINITQTKMSQIDISSG
SGLNDGQWHEVRFLAKENFAILTIDGDEASAVRTNSPLQVKTGEKYFFGGFLNQMNNSSHSVLQPSFQGCMQLIQVDDQLVNLYEVAQRK
PGSFANVSIDMCAIIDRCVPNHCEHGGKCSQTWDSFKCTCDETGYSGATCHNSIYEPSCEAYKHLGQTSNYYWIDPDGSGPLGPLKVYCN
MTEDKVWTIVSHDLQMQTPVVGYNPEKYSVTQLVYSASMDQISAITDSAEYCEQYVSYFCKMSRLLNTPDGSPYTWWVGKANEKHYYWGG
SGPGIQKCACGIERNCTDPKYYCNCDADYKQWRKDAGFLSYKDHLPVSQVVVGDTDRQGSEAKLSVGPLRCQGDRNYWNAASFPNPSSYL
HFSTFQGETSADISFYFKTLTPWGVFLENMGKEDFIKLELKSATEVSFSFDVGNGPVEIVVRSPTPLNDDQWHRVTAERNVKQASLQVDR
LPQQIRKAPTEGHTRLELYSQLFVGGAGGQQGFLGCIRSLRMNGVTLDLEERAKVTSGFISGCSGHCTSYGTNCENGGKCLERYHGYSCD
CSNTAYDGTFCNKDVGAFFEEGMWLRYNFQAPATNARDSSSRVDNAPDQQNSHPDLAQEEIRFSFSTTKAPCILLYISSFTTDFLAVLVK
PTGSLQIRYNLGGTREPYNIDVDHRNMANGQPHSVNITRHEKTIFLKLDHYPSVSYHLPSSSDTLFNSPKSLFLGKVIETGKIDQEIHKY
NTPGFTGCLSRVQFNQIAPLKAALRQTNASAHVHIQGELVESNCGASPLTLSPMSSATDPWHLDHLDSASADFPYNPGQGQAIRNGVNRN
Q9UHC6-2MSSATDPWHLDHLDSASADFPYNPGQGQAIRNGVNRNSAIIGGVIAVVIFTILCTLVFLIRYMFRHKGTYHTNEAKGAESAESADAAIMN

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
CNTNAP2 (go to UniProt):Q9UHC6

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
Q9UHC6Topological domain281262Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=1;End=1223
Q9UHC6Domain35181Note=F5/8 type C;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00081Type=Deletion;Start=1;End=1223
Q9UHC6Domain216368Note=Laminin G-like 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00122Type=Deletion;Start=1;End=1223
Q9UHC6Domain401552Note=Laminin G-like 2;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00122Type=Deletion;Start=1;End=1223
Q9UHC6Domain554591Note=EGF-like 1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00076Type=Deletion;Start=1;End=1223
Q9UHC6Domain592798Note=Fibrinogen C-terminal;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00739Type=Deletion;Start=1;End=1223
Q9UHC6Domain799963Note=Laminin G-like 3;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00122Type=Deletion;Start=1;End=1223
Q9UHC6Domain9631002Note=EGF-like 2;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00076Type=Deletion;Start=1;End=1223
Q9UHC6Domain10551214Note=Laminin G-like 4;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00122Type=Deletion;Start=1;End=1223
Q9UHC6Region10261045Note=Disordered;Ontology_term=ECO:0000256;evidence=ECO:0000256|SAM:MobiDB-liteType=Deletion;Start=1;End=1223


Gene Isoform Structures and Expression Levels for CNTNAP2

check buttonGene structures of our canonical and alternative spliced genes of CNTNAP2
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of CNTNAP2

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 Q9UHC6-1
3D view using mol* of Q9UHC6-2


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 Q9UHC6-1
all structure
pLDDT distribution across the protein length of Q9UHC6-2
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 Q9UHC6-1
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
Q9UHC6-11.0941331.026352.2610.4290.8381.0660.5011.280.3911.09587,592,593,595,596,597,615,618,619,796,797,822,82
4,825,826,884,886,888,895,897,899,903,939,941,946

Q9UHC6-20.3370.15915.7780.8290.5030.78501.20101.33271,72,73,74,75,76

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 Q9UHC6-1_Q9UHC6-1_5y4m_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 Q9UHC6-1_5y4m_A_Q9UHC6-2.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 Q9UHC6-1_Q9UHC6-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/Q9UHC6-1_vs_Q9UHC6-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/Q9UHC6-1_vs_Q9UHC6-2.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 CNTNAP2


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

Related Diseases to CNTNAP2


check button Previous studies relating to the alternative splicing of CNTNAP2 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in CNTNAP2


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