> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/ctsc-9460a36c-a83b-5723-bbeb-37392b4baed6
> Record changed: 2026-10-13

# CTSC

ENSG00000109861

Target class

Enzyme

Chromosome

11

Approved drugs

0

Clinical candidates (approved and in development)

1

## Clinical evidence

**Approved drugs**

0

**Clinical candidates (approved and in development)**

1

## Druggability

**Chemical probe available**

Yes

## Names

**Other names**

- DPP1

**Target name**

CTSC

**Gene name**

Cathepsin C

**Gene symbol**

CTSC

**Protein name**

Dipeptidyl peptidase 1 (EC 3.4.14.1) (Cathepsin C) (Cathepsin J) (Dipeptidyl peptidase I) (DPP-I) (DPPI) (Dipeptidyl transferase) \[Cleaved into: Dipeptidyl peptidase 1 exclusion domain chain (Dipeptidyl peptidase I exclusion domain chain); Dipeptidyl peptidase 1 heavy chain (Dipeptidyl peptidase I heavy chain); Dipeptidyl peptidase 1 light chain (Dipeptidyl peptidase I light chain)\]

### Previous gene symbols (2)

- PLS
- PALS

## Classification

**Gene biotype**

Protein coding

**Gene family**

Cathepsins

**Target class**

Enzyme

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

52

**Protein localisation evidence grade**

Supported

**Highest tissue expression**

104.9

**Tissue specificity (Gini)**

0.526

**Tissue specificity (tau)**

0.867

## Pathways and interactions

**KEGG gene identifiers**

- hsa:1075

**Protein interaction confidence**

0.798

**Protein interaction partners**

11

### Reactome pathways (4)

- R-HSA-204005
- R-HSA-2132295
- R-HSA-5694530
- R-HSA-6798695

## Genomic location

**End position**

88359684

**Start position**

88265069

**Chromosome**

11

**Strand**

Reverse

## Identifiers

**Ensembl gene ID**

ENSG00000109861

**HGNC ID**

HGNC:2528

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:2528)

**NCBI Gene ID**

1075

**UniProt ID**

P53634

## Cellular location

- Lysosome .
- Vesicles

### Publication evidence

- PubMed 7665576  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/7665576/)

## Tissue expression

**Tissue specificity (tau)**

0.866615

**Expression inequality (Gini)**

0.526462

### Highest expression

Expression in transcripts per million

**Cells - Cultured fibroblasts**

104.9

**Lung**

61.5

**Spleen**

57.09

**Cells - EBV-transformed lymphocytes**

52.89

**Adipose - Visceral (Omentum)**

38.35

### All tissues (54)

Expression in transcripts per million

- Cells - Cultured fibroblasts104.9
- Lung61.5
- Spleen57.09
- Cells - EBV-transformed lymphocytes52.89
- Adipose - Visceral (Omentum)38.35
- Whole Blood30.01
- Adipose - Subcutaneous28.59
- Small Intestine - Terminal Ileum26.01
- Artery - Coronary24.31
- Nerve - Tibial21.08
- Colon - Transverse20.84
- Thyroid20.58
- Breast - Mammary Tissue20.31
- Bladder20.27
- Cervix - Endocervix19.91
- Vagina17.55
- Kidney - Medulla17.45
- Artery - Aorta17.38
- Kidney - Cortex16.13
- Esophagus - Mucosa15.48
- Fallopian Tube15.48
- Uterus14.92
- Cervix - Ectocervix14.9
- Adrenal Gland14.86
- Colon - Sigmoid12.81

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (2)

- GO:0006508  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006508)
- GO:0006955  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006955)

### Cellular components (9)

- GO:0005576  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005576)
- GO:0005764  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005764)
- GO:0005788  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005788)
- GO:0016020  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0016020)
- GO:0030134  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0030134)
- GO:0031012  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0031012)
- GO:0033116  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0033116)
- GO:0035578  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0035578)
- GO:0070062  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0070062)

### Molecular functions (3)

- GO:0005515  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005515)
- GO:0008234  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0008234)
- GO:0008239  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0008239)

## Related records

### Trials (18)

- A Phase I Study to Assess PK of AZD7986 Alone & With Verapamil, Itraconazole or Diltiazem in Healthy Subjects
- A Study of Brensocatib Following a Single Oral Administration in Participants With or Without Renal Impairment
- A Study of the Absorption, Metabolism, and Excretion of \[14C\]-Brensocatib Following a Single Oral Administration in Healthy Male Participants
- A Study of the Efficacy and Safety of Brensocatib in Adults With Moderate to Severe Hidradenitis Suppurativa (HS)
- [A Study of the Efficacy and Safety of Brensocatib in Participants With Chronic Rhinosinusitis Without Nasal Polyps (CRSsNP)](https://trialight.com/data/trial/a-study-of-the-efficacy-and-safety-of-brensocatib-in-7eebaaf6-87ca-420f-abab-c78d40df1233.md)
- A Study of the Palatability and Acceptability of Different Brensocatib Oral Liquid Formulations in Healthy Participants
- A Study of the Safety, Pharmacokinetics, and Pharmacodynamics of INS1007 in Healthy Japanese and Caucasian Participants
- A Study to Assess Pharmacokinetics (PK) of Brensocatib Alone and With Multiple Doses of Rifampin or Esomeprozole in Healthy Participants
- A Study to Assess the Efficacy, Safety, and Tolerability of Brensocatib in Participants With Non-Cystic Fibrosis Bronchiectasis
- A Study to Assess the Relative Bioavailability of Brensocatib Pediatric Oral Solution to Oral Tablets in Healthy Participants
- A Study to Assess the Safety, Tolerability, and Pharmacokinetics of Brensocatib Tablets in Adults With Cystic Fibrosis
- A Study to Evaluate the Pharmacokinetics (PK) and Safety of a Single Dose of Brensocatib in Participants With Normal Hepatic Function and Participants With Hepatic Impairment
- A Study to Investigate Effect of Clarithromycin, a Strong CYP3A4 Inhibitor, on Brensocatib Pharmacokinetics in Healthy Participants
- A Study to Investigate the Effects of Brensocatib on QT Interval in Healthy Participants
- An Expanded Access Study to Assess Brensocatib for Participants With Non-Cystic Fibrosis Bronchiectasis
- Assessment of INS1007 in Participants With Non-Cystic Fibrosis Bronchiectasis
- Single + Multiple Ascending Dose and Food Effect Study of AZD7986 in Healthy Volunteers, PK, PD and Safety Study
- STOP-COVID19: Superiority Trial Of Protease Inhibition in COVID-19

### Drugs (1)

- [Brensocatib](https://trialight.com/data/asset/brensocatib-717d305e-e3c4-4e9b-aad2-a4c12dc5a7dd.md) Dipeptidyl peptidase I inhibitor

---

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