> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/htr2c-9cedb114-3d17-55cd-8571-6b4398b0f46f
> Record changed: 2026-10-13

# HTR2C

ENSG00000147246

Target class

GPCR

Chromosome

X

Approved drugs

30

Clinical candidates (approved and in development)

34

## Clinical evidence

**Approved drugs**

30

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

34

## Druggability

**Chemical probe available**

Yes

## Names

**Target name**

HTR2C

**Gene name**

5-hydroxytryptamine receptor 2C

**Gene symbol**

HTR2C

**Previous gene symbols**

- HTR1C

**Protein name**

5-hydroxytryptamine receptor 2C (5-HT-2C) (5-HT2C) (5-HTR2C) (5-hydroxytryptamine receptor 1C) (5-HT-1C) (5-HT1C) (Serotonin receptor 2C)

### Other names (2)

- 5-HT2C
- 5HTR2C

## Classification

**Gene biotype**

Protein coding

**Gene family**

5-hydroxytryptamine receptors, G protein-coupled|MicroRNA protein coding host genes|Small nucleolar RNA protein coding host genes

**Target class**

GPCR

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

9

**Highest tissue expression**

31.82

**Tissue specificity (Gini)**

0.917

**Tissue specificity (tau)**

0.974

## Pathways and interactions

**KEGG gene identifiers**

- hsa:3358

**Protein interaction confidence**

0.861955

**Protein interaction partners**

22

### Reactome pathways (2)

- R-HSA-390666
- R-HSA-416476

## Genomic location

**End position**

114910061

**Start position**

114584078

**Chromosome**

X

**Strand**

Forward

## Identifiers

**Ensembl gene ID**

ENSG00000147246

**HGNC ID**

HGNC:5295

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:5295)

**NCBI Gene ID**

3358

**UniProt ID**

P28335

## Cellular location

- Cell membrane
- Multi-pass membrane protein .

### Publication evidence (4)

- PubMed 12970106  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/12970106/)
- PubMed 18703043  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/18703043/)
- PubMed 19057895  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/19057895/)
- PubMed 7895773  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/7895773/)

## Tissue expression

**Tissue specificity (tau)**

0.973845

**Expression inequality (Gini)**

0.916675

### Highest expression

Expression in transcripts per million

**Brain - Nucleus accumbens (basal ganglia)**

31.82

**Brain - Caudate (basal ganglia)**

13.82

**Brain - Hypothalamus**

13.27

**Brain - Putamen (basal ganglia)**

6.38

**Brain - Amygdala**

2.61

### All tissues (54)

Expression in transcripts per million

- Brain - Nucleus accumbens (basal ganglia)31.82
- Brain - Caudate (basal ganglia)13.82
- Brain - Hypothalamus13.27
- Brain - Putamen (basal ganglia)6.38
- Brain - Amygdala2.61
- Brain - Anterior cingulate cortex (BA24)1.71
- Brain - Frontal Cortex (BA9)1.37
- Brain - Hippocampus1.32
- Brain - Substantia nigra1.29
- Brain - Cortex0.73
- Brain - Spinal cord (cervical c-1)0.6
- Vagina0.32
- Brain - Cerebellar Hemisphere0.11
- Cervix - Ectocervix0.11
- Cervix - Endocervix0.09
- Testis0.09
- Brain - Cerebellum0.08
- Nerve - Tibial0.07
- Bladder0.06
- Prostate0.04
- Pituitary0.02
- Skin - Sun Exposed (Lower leg)0.01
- Minor Salivary Gland0.01
- Esophagus - Gastroesophageal Junction0
- Kidney - Cortex0

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (8)

- GO:0006874  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006874)
- GO:0007208  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007208)
- GO:0007268  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007268)
- GO:0007631  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0007631)
- GO:0010513  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0010513)
- GO:0051209  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0051209)
- GO:0070374  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0070374)
- GO:0098664  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0098664)

### Cellular components (2)

- GO:0005886  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005886)
- GO:0098666  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0098666)

### Molecular functions (6)

- GO:0001587  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0001587)
- GO:0004993  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0004993)
- GO:0005515  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005515)
- GO:0042802  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0042802)
- GO:0051378  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0051378)
- GO:0071886  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0071886)

## On-target safety

- increased convulsions  
### Effects

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

  - preclinical: increased convulsions  
### Biological samples

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

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

  - preclinical: decreased locomotor activity  
### Biological samples

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

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

  - preclinical: increased anxiety  
### Biological samples

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

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

  - preclinical: increased memory  
### Biological samples

  - nervous system  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- abnormal mouth movements  
### Effects

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

  - preclinical: abnormal mouth movements  
### Biological samples

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

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

  - preclinical: penile erection  
### Biological samples

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

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

  - preclinical: decreased convulsions  
### Biological samples

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

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

  - preclinical: decreased eating  
### Biological samples

  - nervous system  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)
- Increased, Kidney Failure  
### Effects

  - Activation/Increase/Upregulation  
### Studies

  - cell-based  
Evidence source  
Source: [aopwiki.org](https://aopwiki.org/aops/33)
- drug abuse/dependence  
### Effects

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

  - preclinical: drug abuse/dependence  
### Biological samples

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

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

  - preclinical: decreased memory  
### Biological samples

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

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

  - preclinical: decreased anxiety  
### Biological samples

  - nervous system  
PubMed 28216264  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/28216264/)

## Related records

### Trials (1,487)

- "Extended" (Alternate Day) Antipsychotic Dosing
- "Olanzapine for Prevention of Chemotherapy Induced Nausea and Vomiting in Children and Adolescents Receiving Highly Emetogenic Chemotherapy (HEC)"
- 1/2-MC4R Genotype and Pediatric Antipsychotic Drug- Induced Weight Gain
- 12-Month Open-Label Long-term Safety Study of TNX-102 SL Tablets in Fibromyalgia Patients
- 12-Week Open-Label Extension Study of TNX-102 SL in PTSD Patients
- 15 mg Mirtazapine Orally Disintegrating Tablets, Fasting
- 15 mg Mirtazapine Orally Disintegrating Tablets, Non-Fasting
- 15 Month Study for Adults Who Have Been Diagnosed With Schizophrenia and Incarcerated
- 28-30 Month Study Comparing Paliperidone Palmitate With Oral Risperidone for Treating Adults Diagnosed With Schizophrenia Within the Past 5 Years
- 3-Week Study of Asenapine, Olanzapine and Placebo for Treatment of Bipolar Mania (P07008)
- 3-week Study of Asenapine, Olanzapine and Placebo for Treatment of Bipolar Mania (P07009)
- 3-week Study to Evaluate Efficacy and Safety of Ziprasidone With Either Lithium or Divalproex in Acutely Manic Subjects
- 40 Week Extension Study Of Asenapine and Olanzapine For Bipolar Disorder (A7501007)(COMPLETED)(P05857)
- 5-HTR2A, DRD2,and COMT Genes Polymorphisms and Olanzapine Plasma Concentration in Treatment of Early-onset Schizophrenia
- 5HT2CR Balance in Brain Connectivity in Cocaine Dependence
- 6-Month Extension Trial of Asenapine With Olanzapine in Negative Symptom Patients Who Completed the Protocol 25543 (25544)(P05777)
- 6-Month Extension Trial of Asenapine With Olanzapine in Negative Symptoms Patients Who Completed the First 6- Month Trial (A7501014)(COMPLETED)(P05772)
- 9 Week Extension Study of Asenapine and Olanzapine in Treatment of Mania (P07007)(COMPLETED)
- A 12-Week, Placebo Controlled Trial of Ziprasidone as Monotherapy for Major Depressive Disorder
- A 2-Part Study to Investigate the Dose-Ranging Safety and Pharmacokinetics, Followed by the Efficacy and Safety of ZX008 (Fenfluramine Hydrochloride) Oral Solution as an Adjunctive Therapy in Children ≥ 2 Years Old and Young Adults With Dravet Syndrome

### Drugs (50)

- Agomelatine Serotonin 2c (5-HT2c) receptor antagonist
- Amisulpride Serotonin (5-HT) receptor antagonist
- Carphenazine Serotonin 2c (5-HT2c) receptor antagonist
- Carphenazine maleate Serotonin 2c (5-HT2c) receptor antagonist
- Chlorprothixene Serotonin 2c (5-HT2c) receptor antagonist
- Clothiapine Serotonin 2 (5-HT2) receptor antagonist
- [Cyclobenzaprine](https://trialight.com/data/asset/cyclobenzaprine-b63a35b9-14ef-4262-8b87-59a3229076ce.md) Serotonin 2c (5-HT2c) receptor antagonist
- Cyclobenzaprine hydrochloride Serotonin 2c (5-HT2c) receptor antagonist
- Dexfenfluramine Serotonin (5-HT) receptor agonist
- Dexfenfluramine hydrochloride Serotonin (5-HT) receptor agonist
- Esmirtazapine Serotonin 2c (5-HT2c) receptor antagonist
- Esmirtazapine maleate Serotonin 2c (5-HT2c) receptor antagonist
- Fenfluramine Serotonin 2c (5-HT2c) receptor agonist
- Fenfluramine hydrochloride Serotonin 2c (5-HT2c) receptor agonist
- Lorcaserin Serotonin 2c (5-HT2c) receptor agonist
- Lorcaserin hydrochloride Serotonin 2c (5-HT2c) receptor agonist
- Loxapine Serotonin 2c (5-HT2c) receptor antagonist
- Loxapine hydrochloride Serotonin 2c (5-HT2c) receptor antagonist
- Loxapine succinate Serotonin 2c (5-HT2c) receptor antagonist
- Methixene Serotonin 2c (5-HT2c) receptor antagonist

---

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