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Aliases for KLK2 Gene

Aliases for KLK2 Gene

  • Kallikrein-Related Peptidase 2 2 3
  • Kallikrein 2, Prostatic 2 3
  • Glandular Kallikrein-1 3 4
  • Tissue Kallikrein-2 3 4
  • HGK-1 3 4
  • Glandular Kallikrein 2 3
  • Kallikrein-2 3
  • EC 4
  • EC 3.4.21 63
  • KLK2A2 3
  • HK2 3

External Ids for KLK2 Gene

Previous GeneCards Identifiers for KLK2 Gene

  • GC19P052005
  • GC19P051737
  • GC19P056052
  • GC19P056068
  • GC19P051376
  • GC19P047711
  • GC19P051369

Summaries for KLK2 Gene

Entrez Gene Summary for KLK2 Gene

  • This gene encodes a member of the grandular kallikrein protein family. Kallikreins are a subgroup of serine proteases that are clustered on chromosome 19. Members of this family are involved in a diverse array of biological functions. The protein encoded by this gene is a highly active trypsin-like serine protease that selectively cleaves at arginine residues. This protein is primarily expressed in prostatic tissue and is responsible for cleaving pro-prostate-specific antigen into its enzymatically active form. This gene is highly expressed in prostate tumor cells and may be a prognostic maker for prostate cancer risk. Alternate splicing results in both coding and non-coding transcript variants. [provided by RefSeq, Jan 2012]

GeneCards Summary for KLK2 Gene

KLK2 (Kallikrein-Related Peptidase 2) is a Protein Coding gene. Diseases associated with KLK2 include prostate cancer. Among its related pathways are Degradation of the extracellular matrix and Collagen biosynthesis and modifying enzymes. GO annotations related to this gene include serine-type endopeptidase activity. An important paralog of this gene is KLK12.

UniProtKB/Swiss-Prot for KLK2 Gene

  • Glandular kallikreins cleave Met-Lys and Arg-Ser bonds in kininogen to release Lys-bradykinin

Gene Wiki entry for KLK2 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KLK2 Gene

Genomics for KLK2 Gene

Regulatory Elements for KLK2 Gene

Genomic Location for KLK2 Gene

50,861,568 bp from pter
50,880,567 bp from pter
19,000 bases
Plus strand

Genomic View for KLK2 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for KLK2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KLK2 Gene

Proteins for KLK2 Gene

  • Protein details for KLK2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:
    • B4DU93
    • B4DUB0
    • F5H8L3
    • Q15946
    • Q9UJZ9

    Protein attributes for KLK2 Gene

    261 amino acids
    Molecular mass:
    28671 Da
    Quaternary structure:
    No Data Available
    • Sequence=AAD13817.1; Type=Miscellaneous discrepancy; Evidence={ECO:0000305};

    Three dimensional structures from OCA and Proteopedia for KLK2 Gene

    Alternative splice isoforms for KLK2 Gene


neXtProt entry for KLK2 Gene

Proteomics data for KLK2 Gene at MOPED

Selected DME Specific Peptides for KLK2 Gene

Post-translational modifications for KLK2 Gene

  • Glycosylation at Asn102
  • Modification sites at PhosphoSitePlus

Antibody Products

Domains for KLK2 Gene

Gene Families for KLK2 Gene

  • KLK :Kallikreins

Suggested Antigen Peptide Sequences for KLK2 Gene

Graphical View of Domain Structure for InterPro Entry



  • P20151
  • Contains 1 peptidase S1 domain.
  • Belongs to the peptidase S1 family. Kallikrein subfamily.
genes like me logo Genes that share domains with KLK2: view

Function for KLK2 Gene

Molecular function for KLK2 Gene

GENATLAS Biochemistry: kallikrein 2,glandular,expressed in the prostate,complexing with protease inhibitor 6 in prostate cancer tissue
UniProtKB/Swiss-Prot CatalyticActivity: Preferential cleavage of Arg- -Xaa bonds in small molecule substrates. Highly selective action to release kallidin (lysyl-bradykinin) from kininogen involves hydrolysis of Met- -Xaa or Leu- -Xaa
UniProtKB/Swiss-Prot Function: Glandular kallikreins cleave Met-Lys and Arg-Ser bonds in kininogen to release Lys-bradykinin

Enzyme Numbers (IUBMB) for KLK2 Gene

Gene Ontology (GO) - Molecular Function for KLK2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0003824 catalytic activity --
GO:0004252 serine-type endopeptidase activity IDA 9042371
genes like me logo Genes that share ontologies with KLK2: view

Phenotypes for KLK2 Gene

GenomeRNAi human phenotypes for KLK2:
genes like me logo Genes that share phenotypes with KLK2: view

Animal Model Products

CRISPR Products

No data available for Animal Models , miRNA , Transcription Factor Targeting and HOMER Transcription for KLK2 Gene

Localization for KLK2 Gene

Subcellular locations from

Jensen Localization Image for KLK2 Gene COMPARTMENTS Subcellular localization image for KLK2 gene
Compartment Confidence
extracellular 4
cytosol 1
lysosome 1
nucleus 1

Gene Ontology (GO) - Cellular Components for KLK2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005576 extracellular region TAS --
GO:0070062 extracellular exosome IDA 23533145
genes like me logo Genes that share ontologies with KLK2: view

No data available for Subcellular locations from UniProtKB/Swiss-Prot for KLK2 Gene

Pathways for KLK2 Gene

genes like me logo Genes that share pathways with KLK2: view

Gene Ontology (GO) - Biological Process for KLK2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006508 proteolysis IEA --
GO:0007264 small GTPase mediated signal transduction TAS --
GO:0008152 metabolic process --
GO:0022617 extracellular matrix disassembly TAS --
GO:0030198 extracellular matrix organization TAS --
genes like me logo Genes that share ontologies with KLK2: view

Compounds for KLK2 Gene

(2) HMDB Compounds for KLK2 Gene

Compound Synonyms Cas Number PubMed IDs
  • Growth hormone release inhibiting factor
Not Available
Somatostatin fragment 3-14
  • Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys [Disulfide bridge: 3-14]
Not Available

(6) Novoseek inferred chemical compound relationships for KLK2 Gene

Compound -log(P) Hits PubMed IDs
serine 63.9 11
progestins 50 1
dihydrotestosterone 46.5 2
testosterone 41.8 14
steroid 14.8 3
genes like me logo Genes that share compounds with KLK2: view

Transcripts for KLK2 Gene

Unigene Clusters for KLK2 Gene

Kallikrein-related peptidase 2:
Representative Sequences:

CRISPR Products

miRNA Products

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for KLK2

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for KLK2 Gene

ExUns: 1a · 1b ^ 2 ^ 3a · 3b · 3c ^ 4a · 4b · 4c ^ 5a · 5b · 5c ^ 6a · 6b ^ 7a · 7b · 7c ^ 8a · 8b · 8c · 8d · 8e ^ 9 ^ 10a · 10b ^ 11a ·
SP1: - - - - - - - -
SP2: - - - - - - -
SP3: - - - - - - - -
SP4: - - - - - -
SP5: - - - -
SP6: - - - - -
SP7: - - - - - - - -
SP8: - - - - - - - - -
SP9: - - -
SP10: - - - - - -
SP11: - - - - -
SP12: - - - - - - - - - -
SP13: - - - -
SP16: -

ExUns: 11b · 11c · 11d

Relevant External Links for KLK2 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KLK2 Gene

mRNA expression in normal human tissues for KLK2 Gene

mRNA differential expression in normal tissues according to GTEx for KLK2 Gene

This gene is overexpressed in Prostate (52.3).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for KLK2 Gene

SOURCE GeneReport for Unigene cluster for KLK2 Gene Hs.515560

genes like me logo Genes that share expressions with KLK2: view

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery and mRNA Expression by UniProt/SwissProt for KLK2 Gene

Orthologs for KLK2 Gene

This gene was present in the common ancestor of animals.

Orthologs for KLK2 Gene

Organism Taxonomy Gene Similarity Type Details
(Pan troglodytes)
Mammalia KLK2 35
  • 99.36 (n)
  • 98.47 (a)
KLK2 36
  • 94 (a)
(Bos Taurus)
Mammalia KLK1 36
  • 66 (a)
(Canis familiaris)
Mammalia KLK2 36
  • 59 (a)
(Mus musculus)
Mammalia Klk1b3 36
  • 59 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 37 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG17239 37
  • 36 (a)
Species with no ortholog for KLK2:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • oppossum (Monodelphis domestica)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)
  • zebrafish (Danio rerio)

Evolution for KLK2 Gene

Gene Tree for KLK2 (if available)
Gene Tree for KLK2 (if available)

Paralogs for KLK2 Gene

genes like me logo Genes that share paralogs with KLK2: view

Variants for KLK2 Gene

Sequence variations from dbSNP and Humsavar for KLK2 Gene

SNP ID Clin Chr 19 pos Sequence Context AA Info Type MAF
rs4846 -- 50,879,007(+) CAAGG(A/T)TGACG utr-variant-3-prime, nc-transcript-variant
rs6070 -- 50,876,854(+) CCCAG(A/T)TTTTC intron-variant
rs6071 -- 50,876,868(+) GACCC(A/G)TAGTC intron-variant
rs6072 - 50,874,726(+) GTGCC(A/C/G)TGCCC missense, reference, intron-variant, nc-transcript-variant, utr-variant-5-prime
rs9884 -- 50,879,042(+) TGGGG(C/G)CACTG utr-variant-3-prime, nc-transcript-variant

Structural Variations from Database of Genomic Variants (DGV) for KLK2 Gene

Variant ID Type Subtype PubMed ID
nsv2531 CNV Loss 18451855
esv1010987 CNV Loss 20482838

Relevant External Links for KLK2 Gene

HapMap Linkage Disequilibrium report

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for KLK2 Gene

Disorders for KLK2 Gene

MalaCards: The human disease database

MalaCards: The human disease database. (1) Diseases for KLK2 Gene including...

Search for KLK2 Gene in MalaCards »

(1) University of Copenhagen DISEASES for KLK2 Gene

(9) Novoseek inferred disease relationships for KLK2 Gene

Disease -log(P) Hits PubMed IDs
prostate cancer 78.2 66
benign prostatic hyperplasia 61.3 5
prostatic diseases 56.8 2
prostate carcinoma 55 10
cancer 37.9 16

Relevant External Links for KLK2

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with KLK2: view

No data available for UniProtKB/Swiss-Prot for KLK2 Gene

Publications for KLK2 Gene

  1. Identification of three new alternate human kallikrein 2 transcripts: evidence of long transcript and alternative splicing. (PMID: 10544017) Liu X.F. … Pastan I. (Biochem. Biophys. Res. Commun. 1999) 3 4 23
  2. Sequencing and expression analysis of the serine protease gene cluster located in chromosome 19q13 region. (PMID: 11054574) Gan L. … Wang K. (Gene 2000) 3 4 23
  3. Single nucleotide polymorphism of the human kallikrein-2 gene highly correlates with serum human kallikrein-2 levels and in combination enhances prostate cancer detection. (PMID: 12805332) Nam R.K. … Narod S.A. (J. Clin. Oncol. 2003) 3 23 48
  4. Variants of the hK2 protein gene (KLK2) are associated with serum hK2 levels and predict the presence of prostate cancer at biopsy. (PMID: 17085659) Nam R.K. … Narod S.A. (Clin. Cancer Res. 2006) 3 23 48
  5. Tagging SNPs in the kallikrein genes 3 and 2 on 19q13 and their associations with prostate cancer in men of European origin. (PMID: 17593395) Pal P. … Deka R. (Hum. Genet. 2007) 3 23 48

Products for KLK2 Gene

Sources for KLK2 Gene

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