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

Dopamine Receptor

Dopamine Receptor

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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 Isoform Specific Products:

Dopamine Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-B0032AR
    Lurasidone (Standard)
    		Antagonist
    Lurasidone (Standard) is the analytical standard of Lurasidone. This product is intended for research and analytical applications. Lurasidone (SM-13496) is an antagonist of both dopamine D2 and 5-HT7 with IC50s of 1.68 and 0.495 nM, respectively. Lurasidone (SM-13496) is also a partial agonist of 5-HT1A receptor with an IC50 of 6.75 nM.
    Lurasidone (Standard)
  • HY-B0358R
    Flunarizine (Standard)
    		Antagonist
    Flunarizine (Standard) is the analytical standard of Flunarizine. This product is intended for research and analytical applications. Flunarizine is a potent dual Na+/Ca2+ channel (T-type) blocker. Flunarizine is a D2 dopamine receptor antagonist. Flunarizine shows anticonvulsive and antimigraine activity, and peripheral vasodilator effects.
    Flunarizine (Standard)
  • HY-19100
    ADX-10061
    		Antagonist
    ADX-10061 (compound NNC 687) is a dopamine D1 receptor antagonist with the Ki values of 9.1 nM, 5.8 nM, > 10 000 nM and 355 nM for adenylyl cyclase, D1, D2 and 5-HT2 receptor, respectively. ADX-10061 can be used for study of schizophrenia.
    ADX-10061
  • HY-B1371R
    Spiperone (Standard)
    		Antagonist
    Spiperone (Standard) is the analytical standard of Spiperone. This product is intended for research and analytical applications. Spiperone (Spiroperidol) is a potent dopamine D2, serotonin 5-HT1A, and serotonin 5-HT2A antagonist. Spiperone is also a labelled ligand for neuroleptic receptors. Spiperone enhances intracellular calcium level and inhibits the Wnt signaling pathway. Spiperone has the potential for the research of neurology diseases.
    Spiperone (Standard)
  • HY-42849AR
    Sultopride hydrochloride (Standard)
    		Antagonist
    Sultopride hydrochloride (Standard) is the analytical standard of Sultopride hydrochloride. This product is intended for research and analytical applications. Sultopride hydrochloride (LIN-1418 hydrochloride) is a selective antagonist of dopamine D2 receptor.
    Sultopride hydrochloride (Standard)
  • HY-14690B
    rel-Ecopipam hydrobromide
    		Antagonist
    rel-Ecopipam (rel-SCH 39166) (Compound 6b) hydrobromide is a D1 receptor antagonist (Ki: 1.30 nM).
    rel-Ecopipam hydrobromide
  • HY-14604R
    Xaliproden hydrochloride (Standard)
    		Antagonist
    Xaliproden (hydrochloride) (Standard) is the analytical standard of Xaliproden (hydrochloride). This product is intended for research and analytical applications. Xaliproden (SR57746) hydrochloride (SR57746A) is an orally active, highly selective 5-HT1A receptor agonist. Xaliproden hydrochloride activates pertussis toxin-sensitive G protein-coupled signaling cascades, as well as the PKC, ERK1/ERK2, Akt and p21 Ras/MEK-1 pathways. Xaliproden hydrochloride also downregulates the JNK/p66/c-Jun signaling pathway, induces phosphorylation of the shc adaptor protein, regulates extracellular dopamine and 5-HT levels, and induces [35S]GTPγS labeling in rat brain structures rich in 5-HT1A receptors. Xaliproden hydrochloride exerts neurotrophic, neuroprotective, renoprotective, anti-inflammatory, anti-apoptotic, anti-fibrotic and analgesic effects. Xaliproden hydrochloride also enhances NGF-induced neurite outgrowth, promotes motor neuron survival, attenuates renal tubular injury and inhibits chemotherapy-induced mechanical allodynia, without activating or altering NGF-induced TrkA receptor activation. Xaliproden hydrochloride can be used in the research of motor neuron disease, diabetic nephropathy, chemotherapy-induced peripheral neuropathy, amyotrophic lateral sclerosis, Alzheimer's disease, acute tonic nociceptive pain, inflammatory pain, depression and anxiety.
    Xaliproden hydrochloride (Standard)
  • HY-17407R
    Ziprasidone hydrochloride monohydrate (Standard)
    		Antagonist
    Ziprasidone (hydrochloride monohydrate) (Standard) is the analytical standard of Ziprasidone (hydrochloride monohydrate). This product is intended for research and analytical applications. Ziprasidone (CP-88059) hydrochloride monohydrate is an orally active combined 5-HT and dopamine receptor antagonist. Ziprasidone hydrochloride monohydrate has affinities for Rat D2 (Ki=4.8 nM), 5-HT2A (Ki=0.42 nM) and 5-HT1A (Ki=3.4 nM).
    Ziprasidone hydrochloride monohydrate (Standard)
  • HY-14543R
    Sertindole (Standard)
    		Antagonist
    Sertindole (Standard) is the analytical standard of Sertindole. This product is intended for research and analytical applications. Sertindole (Lu 23-174) is an orally active 5-HT2A, 5-HT2C, dopamine D2, and αl-adrenergic receptors antagonist. Sertindole shows antipsychotic activity and anti-proliferative activity to multiple cancer cells.
    Sertindole (Standard)
  • HY-A0139
    Thiothixene
    		Antagonist
    Thiothixene is a typical antipsychotic. It selectively binds to dopamine D2 over D1, D3, and D4 receptors (Kis=0.417, 338, 186.2, and 363.1 nM, respectively). Thiothixene also binds to various serotonin (5-HT), histamine H1, α1- and α2-adrenergic, muscarinic acetylcholine, and sigma receptors (Kis=15-5,754 nM) as well as the dopamine, norepinephrine, and serotonin transporters (Kis=3.16-30 μM). In vivo, thiothixene reduces spontaneous and amphetamine-induced locomotor activity in rats. It enhances latent inhibition, as measured by a decreased lick latency in response to light and foot shock stimuli, which is a measure of selective attention in rats.3 Thiothixene also increases competitive behavior in submissive mice, indicating antidepressant-like behavior.
    Thiothixene
  • HY-14325BR
    L-745870 hydrochloride (Standard)
    		Antagonist
    L-745870 (hydrochloride) (Standard) is the analytical standard of L-745870 (hydrochloride). This product is intended for research and analytical applications. L-745870 hydrochloride is a potent, selective, brain-penetrant and orally active dopamine D4 receptor antagonist with a Ki of 0.43 nM. L-745870 hydrochloride shows weaker affinity for D2 (Ki of 960 nM) and D3 (Ki of 2300 nM) receptors, and exhibits moderate affinity for 5-HT2 receptors, sigma sites and α-adrenoceptors.
    L-745870 hydrochloride (Standard)
  • HY-123788
    BRD5814
    		Antagonist
    BRD5814 is a D2R antagonist. BRD5814 can be used in schizophrenia research.
    BRD5814
  • HY-17410S2
    Iloperidone-13C,d3
    		Antagonist
    Iloperidone-13C,d3 (HP 873-13C,d3) is 13C labeled Iloperidone. Iloperidone (HP 873) is a D2/5-HT2 receptor antagonist. Iloperidone is an atypical antipsychotic for the schizophrenia symptoms.
    Iloperidone-<sup>13</sup>C<sub>,d<sub>3</sub>
  • HY-B1033R
    Metergoline (Standard)
    		Antagonist
    Metergoline (Standard) is the analytical standard of Metergoline. This product is intended for research and analytical applications. Metergoline is a serotonin (5-HT) receptor and dopamine receptors antagonist, with pKis of 8.64, 8.75 and 8.75 for 5-HT2A, 5-HT2B and 5-HT2C, respectively. Metergoline is a high-affinity ligand for the h5-HT7 receptor, with a Ki of 16 nM. Metergoline is also a reversible neural Na+ channels inhibitor. Metergoline is commonly used for the research of seasonal affective disorder, prolactin hormone regulation.
    Metergoline (Standard)
  • HY-10684R
    Pridopidine (Standard)
    		Antagonist
    Pridopidine (Standard) is the analytical standard of Pridopidine. This product is intended for research and analytical applications. Pridopidine, a dopamine (DA) stabilizer, acts as a low affinity dopamine D2 receptor (D2R) antagonist. Pridopidine exerts high affinity towards sigma 1 receptor (S1R) with Ki between 70 and 80 nM, which is ~100× higher than its affinity toward D2R.
    Pridopidine (Standard)
  • HY-121008
    Brl 20596
    		Antagonist
    Brl 20596 (compound 4a) is a potent central dopamine receptor antagonist and can be used in antipsychotic research.
    Brl 20596
  • HY-P10405
    TAT-D1 peptide
    		Antagonist
    TAT-D1 peptide is a dopamine D1-D2 receptor heterodimer inhibitor. TAT-D1 peptide disrupts the function of dopamine D1-D2 receptor heteromers, enhances subchronic amphetamine-induced locomotor activity, and exacerbates the expression of amphetamine-induced locomotor sensitization. TAT-D1 peptide produces rapid anxiolytic and antidepressant-like effects in rat models of depression and anxiety, and inhibits c-fos expression in the nucleus accumbens of rats. TAT-D1 peptide can be used in the research of psychostimulant addiction, depression and anxiety disorders.
    TAT-D1 peptide
  • HY-A0019R
    Paliperidone (Standard)
    		Antagonist
    Paliperidone (Standard) is the analytical standard of Paliperidone. This product is intended for research and analytical applications. Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and H1-histaminergic receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia.
    Paliperidone (Standard)
  • HY-123757
    (Rac)-GR218231
    		Antagonist
    (Rac)-GR218231 is a selective dopamine D3 receptor antagonist with a pKi of 8.9.
    (Rac)-GR218231
  • HY-10847BR
    SB-277011 hydrochloride (Standard)
    		Antagonist
    SB-277011 hydrochloride (Standard) is the analytical standard of SB-277011 (hydrochloride) (HY-10847B). This product is intended for research and analytical applications. SB-277011 hydrochloride (SB-277011A hydrochloride) is a potent, selective, orally bioavailable and brain penetrate dopamine D3 receptor (D3R) antagonist with Ki values of 10.7 nM and 11.2 nM at rodent and human D3R, respectively. SB-277011 hydrochloride displays 80- to 100-fold selectivity over other dopamine receptors with pKis of 8.0, 6.0, <5.2, and 5.9 for D3, D2, 5-HT1B, and 5-HT1D receptors, respectively.
    SB-277011 hydrochloride (Standard)
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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