Gene Information
Gene NameKLK4
OrganismHomo sapiens (Human)
Gene Length254
Protein NamesKallikrein-4 (EC 3.4.21.-) (Enamel matrix serine proteinase 1) (Kallikrein-like protein 1) (KLK-L1) (Prostase) (Serine protease 17)
Target Namekallikrein-4
Target TypePatented-recorded target
Gene Age101 ( ENSG00000167749 )
Evolutionary StageMammalia
AlphaFoldDBQ9Y5K2
Gene CardKLK4
Uniprot IDQ9Y5K2
PfamPF00089
In ASDyes
Allosteric Predictionyes (0.697358119)
Ortholog in AnimalsAlpaca_ KLK4 ( ortholog_one2one )
Dog_ KLK4 ( ortholog_one2one )
GuineaPig_ KLK4 ( ortholog_one2one )
Macaque_ KLK4 ( ortholog_one2one )
Mouse_ Klk4 ( ortholog_one2one )
Pig_ KLK4 ( ortholog_one2one )
Rat_ Klk4 ( ortholog_one2one )
Rabbit_ KLK4 ( ortholog_one2one )
OhnologsNA
ParalogsKLK5, KLK7, KLK3, KLK2, KLK8, KLK1, KLK11, KLK14, KLK12, PRSS58, TMPRSS4, PRSS54
Tissueprostate
Tissue SpecificityExpressed in prostate.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2BDG  (X-ray  1.95A  2BDH  (X-ray  3.00A  2BDI  (X-ray  3.00A  4K1E  (X-ray  1.30A  4K8Y  (X-ray  1.00A  4KEL  (X-ray  1.15A  4KGA  (X-ray  2.32A  6KBR  (X-ray  2.00A  6NVB  (X-ray  1.64A  6O21  (X-ray  1.15A  7JOD  (X-ray  1.33A  7JOE  (X-ray  2.60A  7JOS  (X-ray  2.10A  7JOW  (X-ray  1.91A  7JQK  (X-ray  1.33A  7JQN  (X-ray  1.50A  7JQO  (X-ray  1.60A  7JQV  (X-ray  2.10A 
DBSNP rs1654551  rs34626614  rs2569527 
Subcellular location [CC]Secreted.
Mouse PG classificationHPG
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