> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/klk2-72b9e2f8-6ecd-5e3a-8428-85d7b34686da
> Record changed: 2026-11-04

# KLK2

ENSG00000167751

Target class

Enzyme

Chromosome

19

## Druggability

**Chemical probe available**

No

## Names

**Target name**

KLK2

**Gene name**

Kallikrein related peptidase 2

**Gene symbol**

KLK2

**Protein name**

Kallikrein-2 (EC 3.4.21.35) (Glandular kallikrein-1) (hGK-1) (Tissue kallikrein-2)

## Classification

**Gene biotype**

Protein coding

**Gene family**

Kallikreins

**Target class**

Enzyme

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

4

**Highest tissue expression**

1,878.28

**Tissue specificity (Gini)**

0.98

**Tissue specificity (tau)**

1

## Pathways and interactions

**KEGG gene identifiers**

- hsa:3817

**Protein interaction confidence**

0.857467

**Protein interaction partners**

15

### Reactome pathways (3)

- R-HSA-1592389
- R-HSA-381426
- R-HSA-5625886

## Genomic location

**End position**

50880567

**Start position**

50861568

**Chromosome**

19

**Strand**

Forward

## Identifiers

**Ensembl gene ID**

ENSG00000167751

**HGNC ID**

HGNC:6363

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:6363)

**NCBI Gene ID**

3817

**UniProt ID**

P20151

## Tissue expression

**Tissue specificity (tau)**

0.999738

**Expression inequality (Gini)**

0.979741

### Highest expression

Expression in transcripts per million

**Prostate**

1,878.28

**Testis**

14.8

**Thyroid**

6.26

**Cells - EBV-transformed lymphocytes**

1.27

**Cervix - Endocervix**

0.34

### All tissues (54)

Expression in transcripts per million

- Prostate1,878.28
- Testis14.8
- Thyroid6.26
- Cells - EBV-transformed lymphocytes1.27
- Cervix - Endocervix0.34
- Fallopian Tube0.27
- Spleen0.26
- Cervix - Ectocervix0.24
- Uterus0.16
- Colon - Transverse0.16
- Small Intestine - Terminal Ileum0.16
- Breast - Mammary Tissue0.15
- Bladder0.13
- Minor Salivary Gland0.13
- Pituitary0.11
- Skin - Not Sun Exposed (Suprapubic)0.11
- Nerve - Tibial0.11
- Adrenal Gland0.1
- Skin - Sun Exposed (Lower leg)0.09
- Ovary0.09
- Brain - Cerebellum0.08
- Esophagus - Mucosa0.08
- Stomach0.08
- Vagina0.07
- Liver0.06

And 29 more, listed on the interactive page.

## Biological functions

### Cellular components (2)

- GO:0005576  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005576)
- GO:0070062  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0070062)

### Molecular functions

- GO:0004252  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0004252)

## Related records

### Trials (10)

- A Study of JNJ-69086420, an Actinium-225-Labeled Antibody Targeting Human Kallikrein-2 (hK2) for Advanced Prostate Cancer
- [A Study of JNJ-78278343 in Combination With JNJ-95298177 for Treatment of Prostate Cancer](https://trialight.com/data/trial/a-study-of-jnj-78278343-in-combination-with-jnj-95298177-for-cc050ff0-5fff-4d62-9763-e04fd68615ed.md)
- A Study of JNJ-78278343, a T-Cell-Redirecting Agent Targeting Human Kallikrein 2 (KLK2), for Advanced Prostate Cancer
- [A Study of JNJ-87189401 Combined With JNJ-78278343 for Advanced Prostate Cancer](https://trialight.com/data/trial/a-study-of-jnj-87189401-combined-with-jnj-78278343-for-88d12617-8532-42f8-a18f-75e3aab31aa8.md)
- A Study of Pasritamig (JNJ-78278343) in Combination With JNJ-86974680 for Treatment of Prostate Cancer
- [A Study of Pasritamig (JNJ-78278343) in Combination With Other Agents for Metastatic Prostate Cancer](https://trialight.com/data/trial/a-study-of-pasritamig-jnj-78278343-in-combination-with-other-e6590381-7e15-4bbc-982a-d0945f86d1f5.md)
- A Study of Pasritamig With Docetaxel Versus Docetaxel in Participants With Metastatic Castration-Resistant Prostate Cancer
- [A Study of Pasritamig With or Without JNJ-87189401 Versus Placebo for Late Line Metastatic Castration-resistant Prostate Cancer (mCRPC)](https://trialight.com/data/trial/a-study-of-pasritamig-with-or-without-jnj-87189401-versus-1bfe0e24-14dc-483f-9695-bb34adcdc413.md)
- GI-102 (CD80-IgG4 Fc-IL2v3) in Combination With Pasritamig in Patients With Metastatic Castration-resistant Prostate Cancer (mCRPC) (JET-201)
- Testing Pasritamig Before Surgery for the Treatment of Localized Prostate Cancer

### Drugs (1)

- [Pasritamig](https://trialight.com/data/asset/pasritamig-100392f9-383e-475d-b603-2b08c6f1b43a.md)

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