> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/adora3-e4ae62bc-7545-585e-a904-620858df7712
> Record changed: 2026-11-04

# ADORA3

ENSG00000282608

Target class

GPCR

Chromosome

1

Approved drugs

7

Clinical candidates (approved and in development)

10

## Clinical evidence

**Approved drugs**

7

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

10

## Druggability

**Chemical probe available**

Yes

## Names

**Target name**

ADORA3

**Gene name**

Adenosine A3 receptor

**Gene symbol**

ADORA3

**Protein name**

Adenosine receptor A3

### Other names (2)

- AD026
- A3AR

## Classification

**Gene biotype**

Protein coding

**Gene family**

Adenosine receptors|V-set domain containing

**Target class**

GPCR

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

43

**Highest tissue expression**

14.82

**Tissue specificity (Gini)**

0.415

**Tissue specificity (tau)**

0.821

## Pathways and interactions

**KEGG gene identifiers**

- hsa:140

**Protein interaction confidence**

0.9148

**Protein interaction partners**

5

### Reactome pathways (2)

- R-HSA-417973
- R-HSA-418594

## Genomic location

**End position**

111503633

**Start position**

111499429

**Chromosome**

1

**Strand**

Reverse

## Identifiers

**Ensembl gene ID**

ENSG00000282608

**HGNC ID**

HGNC:268

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:268)

**NCBI Gene ID**

140

**UniProt ID**

P0DMS8

## Cellular location

- Cell membrane
- Multi-pass membrane protein .

### Publication evidence (2)

- PubMed 38627384  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/38627384/)
- PubMed 40825947  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/40825947/)

## Tissue expression

**Tissue specificity (tau)**

0.820576

**Expression inequality (Gini)**

0.415358

### Highest expression

Expression in transcripts per million

**Brain - Spinal cord (cervical c-1)**

14.82

**Nerve - Tibial**

8.48

**Adrenal Gland**

7.99

**Small Intestine - Terminal Ileum**

6.63

**Brain - Substantia nigra**

5.75

### All tissues (54)

Expression in transcripts per million

- Brain - Spinal cord (cervical c-1)14.82
- Nerve - Tibial8.48
- Adrenal Gland7.99
- Small Intestine - Terminal Ileum6.63
- Brain - Substantia nigra5.75
- Spleen4.97
- Bladder4.92
- Brain - Hypothalamus4.47
- Cervix - Endocervix4.44
- Artery - Aorta4.16
- Artery - Coronary4.09
- Colon - Transverse3.94
- Lung3.89
- Fallopian Tube3.83
- Adipose - Subcutaneous3.79
- Brain - Hippocampus3.5
- Brain - Amygdala3.49
- Esophagus - Gastroesophageal Junction3.47
- Colon - Sigmoid3.44
- Adipose - Visceral (Omentum)3.43
- Esophagus - Muscularis3.24
- Prostate3.14
- Minor Salivary Gland2.58
- Brain - Caudate (basal ganglia)2.52
- Breast - Mammary Tissue2.48

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (8)

- GO:0006954  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006954)
- GO:0007165  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007165)
- GO:0007190  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007190)
- GO:0007193  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007193)
- GO:0008016  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0008016)
- GO:0008285  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0008285)
- GO:0009611  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0009611)
- GO:0030336  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0030336)

### Cellular components

- GO:0005886  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005886)

### Molecular functions

- GO:0001609  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0001609)

## On-target safety

- angiogenesis  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: angiogenesis  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- decreased convulsions  
### Effects

  - Activation/Increase/Upregulation: acute  
### Studies

  - preclinical: decreased convulsions  
### Biological samples (2)

  - nervous system
  - respiratory  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- interference with the regulation of cell growth (inferred by author)  
### Effects

  - Inhibition/Decrease/Downregulation: general  
### Studies

  - clinical: interference with the regulation of cell growth (inferred by author)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- cell proliferation  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: cell proliferation  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- decreased locomotor activity  
### Effects

  - Activation/Increase/Upregulation: acute  
### Studies

  - preclinical: decreased locomotor activity  
### Biological samples (2)

  - nervous system
  - respiratory  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- increased bronchoconstriction  
### Effects

  - Activation/Increase/Upregulation: acute  
### Studies

  - preclinical: increased bronchoconstriction  
### Biological samples (2)

  - nervous system
  - respiratory  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- increased convulsions  
### Effects

  - Inhibition/Decrease/Downregulation: acute  
### Studies

  - preclinical: increased convulsions  
### Biological samples (2)

  - nervous system
  - respiratory  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- decreased pain  
### Effects

  - Activation/Increase/Upregulation: acute  
### Studies

  - preclinical: decreased pain  
### Biological samples (2)

  - nervous system
  - respiratory  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- myocardial ischemia (inferred by author)  
### Effects

  - Inhibition/Decrease/Downregulation: general  
### Studies

  - clinical: myocardial ischemia (inferred by author)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- cell necrosis  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: cell necrosis  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- antiischaemic (cardioprotective)  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: antiischaemic (cardioprotective)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- hypertension (inferred by author)  
### Effects

  - Inhibition/Decrease/Downregulation: general  
### Studies

  - clinical: hypertension (inferred by author)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- proischemic (cerebral)  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: proischemic (cerebral)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- hypotension  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: hypotension  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- immunosuppression  
### Effects

  - Activation/Increase/Upregulation: general  
### Studies

  - clinical: immunosuppression  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)
- proinflammatory effects (inferred by author)  
### Effects

  - Inhibition/Decrease/Downregulation: general  
### Studies

  - clinical: proinflammatory effects (inferred by author)  
### Biological samples (2)

  - cardiovascular system
  - immune  
Evidence source  
Source: [doi.org](https://doi.org/10.1002/9781118098141.ch2)

## Related records

### Trials (642)

- "Pecos" B-adrenergic and PPAR-G Stimulation Upregulates Lipid Metabolism in Human Subcutaneous Fat
- 12-Week, Double-Blind, Placebo-Controlled Study of 20 and 60 mg/Day Istradefylline in Parkinson's Disease Patients on Levodopa/Carbodopa
- 12-Week, Double-Blind, Placebo-Controlled, Randomized Study of the Efficacy of 40 mg/Day KW-6002 in Parkinson's Disease Patients on Levodopa/Carbidopa
- A 12-week Randomized Study to Evaluate Oral Istradefylline in Subjects With Moderate to Severe Parkinson's Disease
- A Clinical Study in Patients With Chronic Idiopathic Thrombocytopenic Purpura in R788
- A Comparison of Nicardipine and Labetalol for Blood Pressure Control in Intensive Care Patients After Hemorrhagic Stroke Brain Surgery
- A Comparison Study of Apadenoson and Adenosine to Treadmill Exercise Stress.
- A DDI Study to Assess the Effect of INC280 on the PK of Midazolam and Caffeine in Patients With cMET-dysregulated Advanced Solid Tumors
- A Dental Pain Study Comparing The Analgesic Efficacy Of Ibuprofen/Caffeine
- A Dose Finding Study of Preladenant (SCH 420814) for the Treatment of Parkinson's Disease (PD) in Japanese Patients (P06402)
- A Dose Titration Study to Assess the Effects of SAR407899 in Patients With MVA and/or Persistent Stable Angina Despite Angiographically Successful PCI
- A Drug Interaction Study of KW-6356 With Midazolam, Caffeine, or Rosuvastatin
- A Drug-Drug Interaction (DDI) Study of LY3437943 in Obese Participants
- A Drug-Drug Interaction Study of Abiraterone Acetate Plus Prednisone With Dextromethorphan and Theophylline in Patients With Metastatic Castration-Resistant Prostate Cancer
- A Long Term Study to Assess the Safety of Fostamatinib in Patients in Asia With Rheumatoid Arthritis
- A Long-Term, Safety Study With a Flexible Dose Range of KW-6002 in Patients With Motor Response Complications on Levodopa/Carbidopa Therapy
- A Phase 1-2 Study of CF102 in Patients With Advanced Hepatocellular Carcinoma
- A Phase 1/2 Study of CF102 in Patients With Chronic Hepatitis C Genotype 1
- A Phase 2b Study of Istradefylline (KW-6002) for the Treatment of Parkinson's Disease in Patients Taking Levodopa
- A Phase 3 Study in Moderate-to-Severe Plaque Psoriasis With Piclidenoson to Study Safety and Efficacy

### Drugs (33)

- Adenosine Adenosine receptor agonist
- Aminophylline Adenosine receptor antagonist
- Apadenoson
- Binodenoson
- [Caffeine](https://trialight.com/data/asset/caffeine-4062cceb-b322-4d67-b5b1-c5c5913c8897.md) Adenosine receptor antagonist
- Caffeine citrate Adenosine receptor antagonist
- Derenofylline
- Dexniguldipine
- FK453
- Flavone
- Fostamatinib
- GS 6201
- GS-9667
- Istradefylline
- LUF-5981
- LUF-6000
- LUF-6096
- Namodenoson Adenosine A3 receptor agonist
- Nicardipine
- Oxtriphylline Adenosine receptor antagonist

---

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