1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Dopamine Receptor

Dopamine Receptor

Dopamine Receptors are a class of G protein-coupled receptors that are prominent in the vertebrate central nervous system (CNS). The neurotransmitter dopamine is the primary endogenous ligand for dopamine receptors. Dopamine receptors are implicated in many neurological processes, including motivation, pleasure, cognition, memory, learning, and fine motor control, as well as modulation of neuroendocrine signaling. Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. Thus, dopamine receptors are common neurologic drug targets; antipsychotics are often dopamine receptor antagonists while psychostimulants are typically indirect agonists of dopamine receptors. There are at least five subtypes of dopamine receptors, D1, D2, D3, D4, and D5. The D1 and D5 receptors are members of the D1-like family of dopamine receptors, whereas the D2, D3 and D4receptors are members of the D2-like family.

Dopamine Receptor Related Products (228):

Cat. No. Product Name Effect Purity
  • HY-17366
    Clozapine N-oxide Antagonist 99.98%
    Clozapine N-oxide is a major metabolite of Clozapine and a human muscarinic designer receptors (DREADDs) agonist. Clozapine N-oxide activates the DREADD receptor hM3Dq and hM4Di. Clozapine N-oxide can cross the blood-brain barrier. Clozapine is a potent dopamine antagonist and also a potent and selective muscarinic M4 receptor (EC50=11 nM) agonist.
  • HY-15608
    MPTP hydrochloride
    MPTP hydrochloride is a brain penetrant dopamine neurotoxin, inducing Parkinson’s Disease. MPTP hydrochloride, a precusor of MPP+, induces apoptosis.
  • HY-B1081A
    Oxidopamine hydrobromide Antagonist ≥98.0%
    Oxidopamine hydrobromide (6-OHDA hydrobromide), an antagonist of the neurotransmitter dopamine, is a widely used neurotoxin that selectively destroys dopaminergic neurons.
  • HY-12705A
    Bromocriptine mesylate Agonist ≥99.0%
    Bromocriptine mesylate is a potent dopamine D2/D3 receptor agonist, which binds D2 dopamine receptor with pKi of 8.05±0.2.
  • HY-14539
    Clozapine Antagonist 99.74%
    Clozapine (HF 1854) is an antipsychotic used for the research of schizophrenia. Clozapine is a potent antagonist of dopamine and a number of other receptors, with a Ki of 9.5 nM for muscarinic M1 receptor. Clozapine is also a potent and selective agonist at the muscarinic M4 receptor (EC50=11 nM).
  • HY-128121
    MLS1547 Agonist 98.22%
    MLS1547 is a highly efficacious G protein-biased dopamine D2 receptor (D2R) agonist. MLS1547 stimulates D2R G protein-mediated signaling with an EC50 of 0.37 μM. MLS1547 acts as an antagonist for dopamine (DA)-stimulated β-arrestin recruitment to the D2R (IC50=9.9 μM).
  • HY-103416
    A-77636 hydrochloride Agonist
    A-77636 hydrochloride is a potent, orally active, selective and long acting dopamine D1 receptor agonist (pKi=7.40; Ki=39.8 nM) with antiparkinsonian activity. A-77636 hydrochloride is functionally inactive at dopamine D2 receptor.
  • HY-103412
    SKF 83959 hydrobromide Agonist 99.86%
    SKF83959 hydrobromide is a potent and selective dopamine D1-like receptor partial agonist (Ki values are 1.18, 7.56, 920 and 399 nM for rat D1, D5, D2 and D3 receptors, respectively). SKF83959 hydrobromide is a potent allosteric modulator of sigma (σ)-1 receptor. SKF83959 hydrobromide belongs to benzazepine family and has improvements on cognitive dysfunction. SKF83959 hydrobromide can be used for the research of Alzheimer's disease and depression.
  • HY-12987
    Pimozide Antagonist 99.88%
    Pimozide is a dopamine receptor antagonist, with Kis of 1.4 nM, 2.5 nM and 588 nM for dopamine D2, D3 and D1 receptors, respectively, and also has affinity at α1-adrenoceptor, with a Ki of 39 nM; Pimozide also inhibits STAT3 and STAT5.
  • HY-19545A
    SCH-23390 hydrochloride Antagonist 99.31%
    SCH-23390 hydrochloride (R-(+)-SCH-23390 hydrochloride) is a potent and selective dopamine D1-like receptor antagonist with Kis of 0.2 nM and 0.3 nM for the D1 and D5 receptor, respectively. SCH-23390 hydrochloride is a potent and high efficacy human 5-HT2C receptor agonist with a Ki of 9.3 nM. SCH-23390 hydrochloride also binds with high affinity to the 5-HT2 and 5-HT1C receptors. SCH-23390 hydrochloride inhibits G protein-coupled inwardly rectifying potassium (GIRK) channels with an IC50 of 268 nM.
  • HY-N0304
    L-DOPA 99.97%
    L-DOPA (Levodopa) is an orally active metabolic precursor of neurotransmitters dopamine. L-DOPA can cross the blood-brain barrier and is converted into dopamine in the brain. L-DOPA has anti-allodynic effects and the potential for Parkinson's disease.
  • HY-14541
    Olanzapine Antagonist 99.89%
    Olanzapine (LY170053) is a selective monoaminergic antagonist with high affinity binding to serotonin H1, 5HT2A/2C, 5HT3, 5HT6 (Ki=7, 4, 11, 57, and 5 nM, respectively), dopamine D1-4 (Ki=11 to 31 nM), muscarinic M1-5 (Ki=1.9-25 nM), and adrenergic α1 receptor (Ki=19 nM). Olanzapine is an atypical antipsychotic.
  • HY-14538
    Haloperidol Antagonist 99.77%
    Haloperidol is a potent dopamine D2 receptor antagonist, widely used as an antipsychotic.
  • HY-17366A
    Clozapine N-oxide dihydrochloride Antagonist 98.17%
    Clozapine N-oxide dihydrochloride is a major metabolite of Clozapine and a human muscarinic designer receptors (DREADDs) agonist. Clozapine N-oxide dihydrochloride activates the DREADD receptor hM3Dq and hM4Di. Clozapine N-oxide dihydrochloride can cross the blood-brain barrier. Clozapine is a potent dopamine antagonist and also a potent and selective muscarinic M4 receptor (EC50=11 nM) agonist.
  • HY-15296
    Cabergoline Agonist ≥98.0%
    Cabergoline is an ergot derived-dopamine D2-like receptor agonist that has high affinity for D2, D3, and 5-HT2B receptors (Ki=0.7, 1.5, and 1.2, respectively).
  • HY-12520A
    SKF 38393 hydrochloride Agonist 99.44%
    SKF 38393 hydrochloride is a selective agonist of the dopamine D1 receptor (D1DR) with an IC50 of 110 nM.
  • HY-B1081
    Oxidopamine hydrochloride Antagonist ≥98.0%
    Oxidopamine hydrochloride (6-OHDA hydrochloride), an antagonist of the neurotransmitter dopamine, is a widely used neurotoxin that selectively destroys dopaminergic neurons.
  • HY-B0965
    Thioridazine hydrochloride Antagonist 99.93%
    Thioridazine hydrochloride is an antipsychotic drug, used in the treatment of schizophrenia and psychosis, shows D4 selectivity or serotonin antagonism.
  • HY-11018
    Risperidone Antagonist 98.01%
    Risperidone is a serotonin 5-HT2 receptor blocker, P-Glycoprotein inhibitor and potent dopamine D2 receptor antagonist, with Kis of 4.8, 5.9 nM for 5-HT2A and dopamine D2 receptor, respectively.
  • HY-A0081
    Fluphenazine dihydrochloride Inhibitor 99.27%
    Fluphenazine dihydrochloride is a phenothiazine-class D1DR and D2DR inhibitor; used to deliver Fluphenazine to biological systems in studies probing the effects and metabolic fates of this commonly used dopamine antagonist.
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