> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/ndufs5-ab24df07-8748-5965-824a-93a6f49f81be
> Record changed: 2026-10-13

# NDUFS5

ENSG00000168653

Target class

Enzyme

Chromosome

1

Approved drugs

1

Clinical candidates (approved and in development)

3

## Clinical evidence

**Approved drugs**

1

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

3

## Druggability

**Chemical probe available**

No

## Names

**Other names**

- CI-15k

**Target name**

NDUFS5

**Gene name**

NADH:ubiquinone oxidoreductase subunit S5

**Gene symbol**

NDUFS5

**Protein name**

NADH dehydrogenase \[ubiquinone\] iron-sulfur protein 5 (Complex I-15 kDa) (CI-15 kDa) (NADH-ubiquinone oxidoreductase 15 kDa subunit)

## Classification

**Gene biotype**

Protein coding

**Gene family**

NADH:ubiquinone oxidoreductase supernumerary subunits

**Target class**

Enzyme

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

54

**Highest tissue expression**

647.36

**Tissue specificity (Gini)**

0.164

**Tissue specificity (tau)**

0.381

## Pathways and interactions

**KEGG gene identifiers**

- hsa:4725

**Protein interaction confidence**

0.943083

**Protein interaction partners**

96

### Reactome pathways (2)

- R-HSA-611105
- R-HSA-6799198

## Genomic location

**End position**

39034636

**Start position**

39026318

**Chromosome**

1

**Strand**

Forward

## Identifiers

**Ensembl gene ID**

ENSG00000168653

**HGNC ID**

HGNC:7712

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:7712)

**NCBI Gene ID**

4725

**UniProt ID**

O43920

## Cellular location

- Mitochondrion inner membrane
- Peripheral membrane protein . Mitochondrion intermembrane space .

### Publication evidence

- PubMed 12611891  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/12611891/)

## Tissue expression

**Tissue specificity (tau)**

0.38102

**Expression inequality (Gini)**

0.164446

### Highest expression

Expression in transcripts per million

**Heart - Left Ventricle**

647.36

**Heart - Atrial Appendage**

627.26

**Brain - Frontal Cortex (BA9)**

613.23

**Colon - Sigmoid**

589.2

**Cells - Cultured fibroblasts**

560.86

### All tissues (54)

Expression in transcripts per million

- Heart - Left Ventricle647.36
- Heart - Atrial Appendage627.26
- Brain - Frontal Cortex (BA9)613.23
- Colon - Sigmoid589.2
- Cells - Cultured fibroblasts560.86
- Esophagus - Gastroesophageal Junction554.45
- Brain - Anterior cingulate cortex (BA24)548.74
- Esophagus - Muscularis541.17
- Brain - Nucleus accumbens (basal ganglia)516.55
- Muscle - Skeletal513.67
- Artery - Tibial512.04
- Artery - Coronary493.06
- Uterus490.3
- Artery - Aorta483.32
- Cells - EBV-transformed lymphocytes478.56
- Brain - Cerebellar Hemisphere475.38
- Pituitary467.63
- Fallopian Tube467.59
- Ovary466.43
- Brain - Cortex458.56
- Cervix - Ectocervix440.14
- Brain - Caudate (basal ganglia)437.8
- Brain - Hypothalamus428.62
- Brain - Amygdala412.92
- Cervix - Endocervix403.46

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes

- GO:0032981  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0032981)

### Cellular components (3)

- GO:0005739  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005739)
- GO:0005743  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005743)
- GO:0045271  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0045271)

### Molecular functions

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

## Related records

### Trials (2,107)

- "Hepatic Substrate Flux Rates in Type 2 Diabetes"
- "MetCool ACS"- Metformin "Cooling" Effect on Metformin-naive Patients Treated With PCI Because of Acute Coronary Syndrome
- 1% Metformin Gel in the Treatment of Class II Furcation Defects
- 1% Metformin in Moderate and Severe Periodontitis
- 12 Weeks Treatment With 3 Different Doses of BI 10773 in Type 2 Diabetic Patients
- 24-Hour Glycemia: Rosiglitazone Versus Glimepiride In Type 2 Diabetes
- 24-week Study Comparing Lixisenatide to Sitagliptin as add-on to Metformin in Obese Type 2 Diabetic Patients Younger Than 50 Years
- 24-week Treatment With Lixisenatide in Type 2 Diabetes Insufficiently Controlled With Metformin and Insulin Glargine
- 30-Week Extension to an Initial Combination Study (24 Weeks in Duration) of Sitagliptin With Pioglitazone (0431-064)
- 52-week add-on to Metformin Comparison of Saxagliptin and Sulphonylurea, With a 52-week Extension Period
- A 12 Week Study in Patients With Type 2 Diabetes Mellitus (T2DM)
- A 24-week Open-Label, Phase 3b Trial With a 28-week Extension to Evaluate the Efficacy and Safety of Saxagliptin Co-administered With Dapagliflozin Compared to Insulin Glargine in Subjects withType 2 Diabetes Who Have Glycemic Control on Metformin
- A Bioequivalence Study of CT-L01 Compared to Co-administration (ALO 12.5 mg and MET XR 500 mg) in Healthy Volunteers
- A Bioequivalence Study of CT-L01 Compared to Co-administration (ALO 25 mg and MET XR 1,000 mg) in Healthy Volunteers
- A Bioequivalence Study Of Ethinylestradiol + Gestodene In Female And Healthy Volunteers.
- A Bioequivalence Study of the Fixed Dose Combination Tablets of Canagliflozin and Metformin Extended Release (XR) With Respect to the Individual Components
- A Bioequivalence Study of the Fixed Dose Combination Tablets of Canagliflozin and Metformin Extended Release (XR) With Respect to the Individual Components
- A Bioequivalence Study of the Fixed Dose Combination Tablets of Canagliflozin and Metformin Extended Release (XR) With Respect to the Individual Components in Healthy Fed Participants
- A Bioequivalence Study of the Fixed Dose Combination Tablets of Canagliflozin and Metformin Extended Release (XR) With Respect to the Individual Components in Healthy Fed Participants
- A Bioequivalence Study of the Fixed Dose Combinations of Saxagliptin/Metformin XR Relative to Co-Administration

### Drugs (4)

- ME-344 Mitochondrial complex I (NADH dehydrogenase) inhibitor
- Metformin Mitochondrial complex I (NADH dehydrogenase) inhibitor
- [Metformin hydrochloride](https://trialight.com/data/asset/metformin-hydrochloride-10ef84a6-9052-459a-9134-fada726e38d0.md) Mitochondrial complex I (NADH dehydrogenase) inhibitor
- NV-128 Mitochondrial complex I (NADH dehydrogenase) inhibitor

---

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