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KLK4
HPA
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  • KLK4
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

KLK4
Synonyms EMSP, EMSP1, KLK-L1, PRSS17, PSTS
Gene descriptioni

Full gene name according to HGNC.

Kallikrein related peptidase 4
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Cancer-related genes
Disease related genes
Enzymes
Human disease related genes
Potential drug targets
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Secreted, Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 19
Cytoband q13.41
Chromosome location (bp) 50906351 - 50911395
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

2
Ensembl ENSG00000167749 (version 109)
Entrez gene 9622
HGNC HGNC:6365
UniProt Q9Y5K2 (UniProt - Evidence at protein level)
neXtProt NX_Q9Y5K2
GeneCards KLK4
Antibodypedia KLK4 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

Has a major role in enamel formation 1. Required during the maturation stage of tooth development for clearance of enamel proteins and normal structural patterning of the crystalline matrix (By similarity).... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Hydrolase, Protease, Serine protease
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Biomineralization
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Metal-binding, Zinc
Gene summary (Entrez)i

Useful information about the gene from Entrez

Kallikreins are a subgroup of serine proteases having diverse physiological functions. Growing evidence suggests that many kallikreins are implicated in carcinogenesis and some have potential as novel cancer and other disease biomarkers. This gene is one of the fifteen kallikrein subfamily members located in a cluster on chromosome 19. In some tissues its expression is hormonally regulated. The expression pattern of a similar mouse protein in murine developing teeth supports a role for the protein in the degradation of enamel proteins. Several transcript variants encoding different proteins have been found for this gene. [provided by RefSeq, Dec 2014]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
KLK4-201
ENSP00000326159
ENST00000324041
A0A0C4DFQ5
[Direct mapping] Kallikrein 4 (Prostase, enamel matrix, prostate), isoform CRA_a; Kallikrein B1; Kallikrein-4
Show all
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
Predicted secreted proteins
   Secreted proteins predicted by MDSEC
   SignalP predicted secreted proteins
   Phobius predicted secreted proteins
   SPOCTOPUS predicted secreted proteins
   DeepTMHMM predicted secreted proteins
   DeepSig predicted secreted proteins
Human disease related genes
   Digestive system diseases
   Mouth and dental diseases
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0006508 [proteolysis]
GO:0008233 [peptidase activity]
GO:0008236 [serine-type peptidase activity]
GO:0016787 [hydrolase activity]
GO:0022617 [extracellular matrix disassembly]
GO:0030163 [protein catabolic process]
GO:0097186 [amelogenesis]
Show all
254 aa
27 kDa
Yes 0
KLK4-202
ENSP00000399448
ENST00000431178
Q9Y5K2
[Direct mapping] Kallikrein-4
Show all
Enzymes
   Peptidases
   Serine-type peptidases
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Cancer-related genes
   Candidate cancer biomarkers
Disease related genes
Potential drug targets
Human disease related genes
   Digestive system diseases
   Mouth and dental diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Show all
GO:0004252 [serine-type endopeptidase activity]
GO:0005515 [protein binding]
GO:0005576 [extracellular region]
GO:0006508 [proteolysis]
GO:0008233 [peptidase activity]
GO:0008236 [serine-type peptidase activity]
GO:0016787 [hydrolase activity]
GO:0022617 [extracellular matrix disassembly]
GO:0030141 [secretory granule]
GO:0031214 [biomineral tissue development]
GO:0046872 [metal ion binding]
GO:0097186 [amelogenesis]
Show all
110 aa
11.9 kDa
No 0

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