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:CLCNKA

Protein Summary

check button Gene summary
Gene name: CLCNKA
ASpdb.0 ID: 1187
Gene
Gene symbol

CLCNKA

Gene ID

1187

Gene namechloride voltage-gated channel Ka
SynonymsCLCK1|ClC-K1|hClC-Ka
Cytomap

1p36.13

Type of geneprotein-coding
Descriptionchloride channel protein ClC-Kachloride channel Kachloride channel, kidney, Achloride channel, voltage-sensitive Ka
Modification date20240411
UniProtAcc

P51800


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


AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P51800-1P51800-1_2pfi_A.pdb2PFIX-ray1.6A542687

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P51800CLCNKAP51800-1P51800-268764477119Deletionnonenone7676
P51800CLCNKAP51800-1P51800-3687686615615Deletionnonenone614614

check buttonMultiple sequence alignment of our canonical and alternatively spliced CLCNKA

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of CLCNKA
UniProt-idENSGENSTENSP
P51800-1ENSG00000186510.12ENST00000331433.5ENSP00000332771.4
P51800-2ENSG00000186510.12ENST00000439316.6ENSP00000414445.2
P51800-3ENSG00000186510.12ENST00000375692.5ENSP00000364844.1

UniProt-idNM IDNP ID
P51800-1NM_004070.3NP_004061.3
P51800-2NM_001257139.1NP_001244068.1
P51800-3NM_001042704.1NP_001036169.1

check buttonAmino acid sequences of our canonical and alternatively spliced CLCNKA
accession_idProtein sequence
P51800-1MEELVGLREGFSGDPVTLQELWGPCPHIRRAIQGGLEWLKQKVFRLGEDWYFLMTLGVLMALVSYAMNFAIGCVVRAHQWLYREIGDSHL
LRYLSWTVYPVALVSFSSGFSQSITPSSGGSGIPELKTMLAGVILEDYLDIKNFGAKVVGLSCTLATGSTLFLGKVGPFVHLSVMIAAYL
GRVRTTTIGEPENKSKQNEMLVAAAAVGVATVFAAPFSGVLFSIEVMSSHFSVRDYWRGFFAATCGAFIFRLLAVFNSEQETITSLYKTS
FRVDVPFDLPEIFFFVALGGICGVLSCAYLFCQRTFLSFIKTNRYSSKLLATSKPVYSALATLLLASITYPPGVGHFLASRLSMKQHLDS
LFDNHSWALMTQNSSPPWPEELDPQHLWWEWYHPRFTIFGTLAFFLVMKFWMLILATTIPMPAGYFMPIFILGAAIGRLLGEALAVAFPE
GIVTGGVTNPIMPGGYALAGAAAFSGAVTHTISTALLAFELTGQIVHALPVLMAVLAANAIAQSCQPSFYDGTIIVKKLPYLPRILGRNI
GSHHVRVEHFMNHSITTLAKDTPLEEVVKVVTSTDVTEYPLVESTESQILVGIVQRAQLVQALQAEPPSRAPGHQQCLQDILARGCPTEP
P51800-2MEELVGLREGFSGDPVTLQELWGPCPHIRRAIQGGLEWLKQKVFRLGEDWYFLMTLGVLMALVSYAMNFAIGCVVRGSGIPELKTMLAGV
ILEDYLDIKNFGAKVVGLSCTLATGSTLFLGKVGPFVHLSVMIAAYLGRVRTTTIGEPENKSKQNEMLVAAAAVGVATVFAAPFSGVLFS
IEVMSSHFSVRDYWRGFFAATCGAFIFRLLAVFNSEQETITSLYKTSFRVDVPFDLPEIFFFVALGGICGVLSCAYLFCQRTFLSFIKTN
RYSSKLLATSKPVYSALATLLLASITYPPGVGHFLASRLSMKQHLDSLFDNHSWALMTQNSSPPWPEELDPQHLWWEWYHPRFTIFGTLA
FFLVMKFWMLILATTIPMPAGYFMPIFILGAAIGRLLGEALAVAFPEGIVTGGVTNPIMPGGYALAGAAAFSGAVTHTISTALLAFELTG
QIVHALPVLMAVLAANAIAQSCQPSFYDGTIIVKKLPYLPRILGRNIGSHHVRVEHFMNHSITTLAKDTPLEEVVKVVTSTDVTEYPLVE
STESQILVGIVQRAQLVQALQAEPPSRAPGHQQCLQDILARGCPTEPVTLTLFSETTLHQAQNLFKLLNLQSLFVTSRGRAVGCVSWVEM
P51800-3MEELVGLREGFSGDPVTLQELWGPCPHIRRAIQGGLEWLKQKVFRLGEDWYFLMTLGVLMALVSYAMNFAIGCVVRAHQWLYREIGDSHL
LRYLSWTVYPVALVSFSSGFSQSITPSSGGSGIPELKTMLAGVILEDYLDIKNFGAKVVGLSCTLATGSTLFLGKVGPFVHLSVMIAAYL
GRVRTTTIGEPENKSKQNEMLVAAAAVGVATVFAAPFSGVLFSIEVMSSHFSVRDYWRGFFAATCGAFIFRLLAVFNSEQETITSLYKTS
FRVDVPFDLPEIFFFVALGGICGVLSCAYLFCQRTFLSFIKTNRYSSKLLATSKPVYSALATLLLASITYPPGVGHFLASRLSMKQHLDS
LFDNHSWALMTQNSSPPWPEELDPQHLWWEWYHPRFTIFGTLAFFLVMKFWMLILATTIPMPAGYFMPIFILGAAIGRLLGEALAVAFPE
GIVTGGVTNPIMPGGYALAGAAAFSGAVTHTISTALLAFELTGQIVHALPVLMAVLAANAIAQSCQPSFYDGTIIVKKLPYLPRILGRNI
GSHHVRVEHFMNHSITTLAKDTPLEEVVKVVTSTDVTEYPLVESTESQILVGIVQRAQLVQALQAEPPSRAPGHQCLQDILARGCPTEPV

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
CLCNKA (go to UniProt):P51800

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
P51800Topological domain507687Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255Type=Deletion;Start=615;End=615


Gene Isoform Structures and Expression Levels for CLCNKA

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

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 P51800-1
3D view using mol* of P51800-2
3D view using mol* of P51800-3


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 P51800-1
all structure
pLDDT distribution across the protein length of P51800-2
all structure
pLDDT distribution across the protein length of P51800-3
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 P51800-1
all structure
Ramachandran plot of P51800-2
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
P51800-11.0632951.033831.0890.4650.7921.0220.6411.1720.5470.69764,65,68,71,75,76,78,79,80,82,83,89,92,96,99,154,1
55,156,157,158,159,160,161,162,163,164,165,166,211
,212,213,214,215,250,251,254,259,260,264,265,266,2
67,341,342,351,352,353,354,355,356,378,380,381,382
,384,387,427,490,491
P51800-21.0872950.952611.2260.40.8281.0780.3931.4880.2640.61665,68,69,71,72,73,74,75,76,77,78,79,80,81,82,92,93
,94,95,100,103,104,120,123,124,125,128,260,264,267
,268,274,277,278,281,373,374,375,376,377,378,379,3
80,381,382,383,476,477,480,483,484,486
P51800-31.0861561.117352.9470.4180.7891.050.7570.910.8321.577129,130,132,134,136,193,194,195,197,198,199,202,22
4,227,228,230,231,232,234,235,647,648,649,651,653,
669,670,673,674

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 P51800-1_P51800-1_2pfi_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 P51800-1_2pfi_A_P51800-2.pdb
3D view using mol* of P51800-1_2pfi_A_P51800-3.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 P51800-1_P51800-2.pdb
3D view using mol* of P51800-1_P51800-3.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P51800-1_vs_P51800-2.png
all structure<
./stats/secondary_structure/figure/P51800-1_vs_P51800-3.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P51800-1_vs_P51800-2.png
all structure<
./stats/relative_asa/P51800-1_vs_P51800-3.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 CLCNKA


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P51800CLCNKADB04552Niflumic acidexperimentalinducer
P51800CLCNKADB09295Talniflumateexperimentalantagonist

Related Diseases to CLCNKA


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


Clinically important variants in CLCNKA


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