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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:KLK1

Protein Summary

check button Gene summary
Gene name: KLK1
ASpdb.0 ID: 3816
Gene
Gene symbol

KLK1

Gene ID

3816

Gene namekallikrein 1
SynonymsKLKR|Klk6|hK1
Cytomap

19q13.33

Type of geneprotein-coding
Descriptionkallikrein-1glandular kallikrein 1kallikrein 1, renal/pancreas/salivarykallikrein serine protease 1kidney/pancreas/salivary gland kallikreintissue kallikrein
Modification date20240305
UniProtAcc

P06870


check button Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez
PartnerGeneGO IDGO termPubMed ID
GeneKLK1

GO:0005634

nucleus

19232384



AS Summary

check button Information of the canonical protein with experimentally identified structure from PDB (2023).
UniProt AccFile namePDB IDMethodResolutionChainStartEnd
P06870-1P06870-1_1spj_A.pdb1SPJX-ray1.7A25262

check button ASpdb's canonical and alternatively spliced isoform information.
accession_idgene_namecanonical_idalternative_idcanonical_lengthalternative_lengthcanonical_startcanonical_endtypeoriginalSEQvariationSEQalternative_startalternative_end
P06870KLK1P06870-1P06870-2262216169SubstitutionMWFLVLCLALSLGGTGAAPPIQSRIVGGWECEQHSQPWQAALYHFSTFQCGGILVHRQWVLTAAHCISDMLPCPIPFSPSRLLIPPFPSFPS123

check buttonMultiple sequence alignment of our canonical and alternatively spliced KLK1

check button Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of KLK1
UniProt-idENSGENSTENSP
P06870-1ENSG00000167748.11ENST00000301420.3ENSP00000301420.1

UniProt-idNM IDNP ID
P06870-1NM_002257.3NP_002248.1

check buttonAmino acid sequences of our canonical and alternatively spliced KLK1
accession_idProtein sequence
P06870-1MWFLVLCLALSLGGTGAAPPIQSRIVGGWECEQHSQPWQAALYHFSTFQCGGILVHRQWVLTAAHCISDNYQLWLGRHNLFDDENTAQFV
HVSESFPHPGFNMSLLENHTRQADEDYSHDLMLLRLTEPADTITDAVKVVELPTEEPEVGSTCLASGWGSIEPENFSFPDDLQCVDLKIL
P06870-2MLPCPIPFSPSRLLIPPFPSFPSNYQLWLGRHNLFDDENTAQFVHVSESFPHPGFNMSLLENHTRQADEDYSHDLMLLRLTEPADTITDA
VKVVELPTEEPEVGSTCLASGWGSIEPENFSFPDDLQCVDLKILPNDECKKAHVQKVTDFMLCVGHLEGGKDTCVGDSGGPLMCDGVLQG

Protein Functional Features

check buttonMain function of this protein. (from UniProt)
KLK1 (go to UniProt):P06870

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
P06870Domain25259Note=Peptidase S1;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00274Type=Substitution;Start=1;End=69


Gene Isoform Structures and Expression Levels for KLK1

check buttonGene structures of our canonical and alternative spliced genes of KLK1
* Click on the image to open the UCSC genome browser with custom track showing this image in a new window.
gene isoform structure of KLK1

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 P06870-1
3D view using mol* of P06870-2


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 P06870-1
all structure
pLDDT distribution across the protein length of P06870-2
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 P06870-1
all structure
Ramachandran plot of P06870-2
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
P06870-11.0071031.028373.870.6740.7030.9190.5981.0230.5841.21743,44,47,48,49,50,65,66,80,81,105,106,108,109,111,
117,120,168,191,209,210,211,212,214,228,229,230,23
1,233
P06870-21.0775391.1041344.560.4240.7851.041.1480.9421.2181.5515,7,8,9,10,11,12,13,14,15,16,17,18,19,21,22,24,25,
26,27,28,29,31,34,50,51,52,55,57,59,60,61,62,63,64
,65,71,73,74,75,76,77,78,79,80,94,96,110,111,112,1
13,122,163,164,165,166,167,168,169,170,171,178,181
,182,183,184,185,186,187,189,196,197,201,207,208,2
11,212,215,216

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 P06870-1_P06870-1_1spj_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 P06870-1_1spj_A_P06870-2.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 P06870-1_P06870-2.pdb

check button Protein Feature Comparison of the protein sequendary structures among the protiens.
./stats/secondary_structure/figure/P06870-1_vs_P06870-2.png
all structure<

check button Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens.
./stats/relative_asa/P06870-1_vs_P06870-2.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 KLK1


check button Drugs targeting this gene/protein.
(DrugBank)
UniProt accessionGene nameDrugBank IDDrug nameDrug groupActions
P06870KLK1DB06245Lanoteplaseinvestigational
P06870KLK1DB06728Anilineexperimental
P06870KLK1DB01370Aluminiumapproved, investigationalinhibitor
P06870KLK1DB12598Nafamostatinvestigationalinhibitor
P06870KLK1DB06692Aprotininapproved, investigational, withdrawn
P06870KLK1DB03127Benzamidineexperimental
P06870KLK1DB14517Aluminium phosphateapproved, investigational
P06870KLK1DB14518Aluminum acetateapproved, investigational

Related Diseases to KLK1


check button Previous studies relating to the alternative splicing of KLK1 and disease information from the MeSH term (PubMed)
GenePMIDTitleAbstractMeSH IDMeSH term


Clinically important variants in KLK1


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