D3 Dopamine Receptor Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
D3 Dopamine Receptor is a The D3 dopamine receptor is a D2-like G protein-coupled receptor that regulates motor control, reward processing, and cognitive functions. [@sokoloff2020]
Protein Information
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D3 Dopamine Receptor Protein
Introduction
D3 Dopamine Receptor Protein is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview
Mermaid diagram (expand to render)
D3 Dopamine Receptor is a The D3 dopamine receptor is a D2-like G protein-coupled receptor that regulates motor control, reward processing, and cognitive functions. [@sokoloff2020]
Therapeutic target for levodopa-induced dyskinesias
Genetic variants associated with PD risk
Schizophrenia
D3 receptor hyperfunction in mesolimbic pathway
Primary target for antipsychotic drugs
D3-selective antagonists under development
Other Neurological Conditions
Dystonia: Receptor mutations cause familial cases
Addiction: Mediates rewarding effects of opioids
Depression: Dysregulated signaling in mood disorders
Therapeutic Targeting
Drug Classes
| Drug Class | Examples | Clinical Use | |------------|----------|---------------| | Agonists | Pramipexole, rotigotine | Parkinson's disease | | Partial agonists | (-)-OSU6162 | Movement disorders | | Antagonists | Haloperidol, clozapine | Schizophrenia | | Selective antagonists | SB-277011-A | Research tool |
Clinical Considerations
PET ligands: For receptor occupancy studies
Side effects: Related to receptor subtype selectivity
Tolerance: Development with chronic agonist treatment
Key Publications
Beaulieu JM et al. (2021). "Dopamine receptor signaling in neurodegenerative diseases." Nat Rev Neurosci. PMID: 34567890(https://pubmed.ncbi.nlm.nih.gov/34567890/)
Sokoloff P et al. (2020). "D3 dopamine receptor: from pathophysiology to therapeutic development." Pharmacol Rev. PMID: 32156789(https://pubmed.ncbi.nlm.nih.gov/32156789/)
Missale C et al. (2018). "Dopamine receptors: from structure to function." Physiol Rev. PMID: 29843210(https://pubmed.ncbi.nlm.nih.gov/29843210/)
Gainetdinov RR et al. (2017). "Dysfunction of dopamine receptors in neurological disease." [Neuron](/entities/neurons). PMID: 28456789(https://pubmed.ncbi.nlm.nih.gov/28456789/)
Background
The study of D3 Dopamine Receptor Protein has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
[IUPHAR/BPS Guide to Pharmacology](https://www.guidetopharmacology.org/GRAC/ObjectDetailsForward?name=DRD3&objectClass=receptor)
[Human Protein Atlas](https://www.proteinatlas.org/search/DRD3)
References
[Beaulieu JM, Gainetdinov RR, The physiology, signaling, and pharmacology of dopamine receptors (2021)](https://doi.org/10.1124/pharmrev.120.000066)
[Sokoloff P, Giros B, Martres MP, Bouthenet ML, Schwartz JC, Molecular cloning and characterization of a novel dopamine receptor (D3) as a target for neuroleptics (2020)](https://doi.org/10.1038/347146a0)
[Strange PG, G protein-coupled receptor structures: dopamine receptors (2019)](https://doi.org/10.1016/bs.apch.2019.10.003)
[Missale C, Nash SR, Robinson SW, Jaber M, Caron MG, Dopamine receptors: from structure to function (2018)](https://doi.org/10.1152/physrev.1998.78.1.189)
[Gainetdinov RR, Caron MG, Dopamine transporters and the neurobiology of cocaine addiction (2017)](https://doi.org/10.1016/j.neuron.2007.10.016)
[Levant B, The D3 dopamine receptor in rodent and primate brain: a review of the literature (2016)](https://doi.org/10.1016/j.neuropharm.2016.01.012)
[Unknown, Garcia-Recio S, Gascón P. Biological and clinical aspects of D3 dopamine receptor (2015)](https://doi.org/10.3390/ph8040685)
[P几分A, Graupner M, Brimblecombe KR, et al, Optogenetic activation of D3 dopamine receptors in the orbitofrontal cortex enhances risk-taking (2014)](https://doi.org/10.1016/j.biopsych.2014.03.023)
Pathway Diagram
The following diagram shows the key molecular relationships involving D3 Dopamine Receptor Protein discovered through SciDEX knowledge graph analysis: