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Record Information
Version2.0
Creation Date2009-07-21 20:26:26 UTC
Update Date2014-12-24 20:25:50 UTC
Accession NumberT3D2731
Identification
Common NameRopinirole
ClassSmall Molecule
DescriptionRopinirole is a non-ergoline dopamine agonist, manufactured by GlaxoSmithKline. It is used in the treatment of Parkinson's disease, and is also one of two medications in the United States with an FDA-approved indication for the treatment of restless legs syndrome (the other being Pramipexole).
Compound Type
  • Amide
  • Amine
  • Antidyskinetic
  • Antiparkinson Agent
  • Central Nervous System Agent
  • Dopamine Agonist
  • Drug
  • Metabolite
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
Adartrel
ReQuip
ReQuip CR
ReQuip XL
Ronirol
Ropinirol
Ropinirolum
Chemical FormulaC16H24N2O
Average Molecular Mass260.375 g/mol
Monoisotopic Mass260.189 g/mol
CAS Registry Number91374-21-9
IUPAC Name4-[2-(dipropylamino)ethyl]-2,3-dihydro-1H-indol-2-one
Traditional Nameropinirole
SMILESCCCN(CCC)CCC1=C2CC(O)=NC2=CC=C1
InChI IdentifierInChI=1S/C16H24N2O/c1-3-9-18(10-4-2)11-8-13-6-5-7-15-14(13)12-16(19)17-15/h5-7H,3-4,8-12H2,1-2H3,(H,17,19)
InChI KeyInChIKey=UHSKFQJFRQCDBE-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as indolines. Indolines are compounds containing an indole moiety, which consists of pyrrolidine ring fused to benzene to form 2,3-dihydroindole.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassIndolines
Direct ParentIndolines
Alternative Parents
Substituents
  • Dihydroindole
  • Phenethylamine
  • Aralkylamine
  • Benzenoid
  • Amino acid or derivatives
  • Carboxamide group
  • Lactam
  • Secondary carboxylic acid amide
  • Tertiary aliphatic amine
  • Tertiary amine
  • Carboxylic acid derivative
  • Azacycle
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxide
  • Organopnictogen compound
  • Amine
  • Organic oxygen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting Point243-250°C
Boiling PointNot Available
Solubility133 mg/mL
LogP2.7
Predicted Properties
PropertyValueSource
Water Solubility0.35 g/LALOGPS
logP3.16ALOGPS
logP3.06ChemAxon
logS-2.9ALOGPS
pKa (Strongest Acidic)13.24ChemAxon
pKa (Strongest Basic)10.17ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area32.34 ŲChemAxon
Rotatable Bond Count7ChemAxon
Refractivity81.43 m³·mol⁻¹ChemAxon
Polarizability31.19 ųChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-03kd-8950000000-65ad14635cd7e9f25153JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03di-0190000000-7e072cf65f341641938cJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03di-3960000000-47d2311adfeeacf4062dJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-7900000000-0891c66db163729a5360JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0090000000-88c0fa3d93090a0d06c6JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0pb9-3590000000-8fb5fc766313ee6bbd9eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0k96-9400000000-f1b50dacd59a9bfe90b7JSpectraViewer
Toxicity Profile
Route of ExposureOral. Absolute bioavailability is 55%, indicating a first pass effect. Food does not affect the extent of absorption.
Mechanism of ToxicityRopinirole binds the dopamine receptors D3 and D2. Although the precise mechanism of action of ropinirole as a treatment for Parkinson's disease is unknown, it is believed to be related to its ability to stimulate these receptors in the striatum. This conclusion is supported by electrophysiologic studies in animals that have demonstrated that ropinirole influences striatal neuronal firing rates via activation of dopamine receptors in the striatum and the substantia nigra, the site of neurons that send projections to the striatum.
MetabolismHepatic. Ropinirole is extensively metabolized to inactive metabolites via N -despropylation and hydroxylation pathways, largely by the P450 isoenzyme CYP1A2. N-despropyl ropinirole is the predominant metabolite found in urine (40%), followed by the carboxylic acid metabolite (10%), and the glucuronide of the hydroxy metabolite (10%). Route of Elimination: Ropinirole is extensively metabolized by the liver to inactive metabolites, and less than 10% of the administered dose is excreted as unchanged drug in urine. Half Life: 6 hours
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesFor the treatment of the signs and symptoms of idiopathic Parkinson's disease. Also used for the treatment of restless legs syndrome.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsSymptoms of overdose include agitation, chest pain, confusion, drowsiness, facial muscle movements, grogginess, increased jerkiness of movement, symptoms of low blood pressure (dizziness, light-headedness)upon standing, nausea, and vomiting.
TreatmentGeneral supportive measures are recommended. Vital signs should be maintained, if necessary. Removal of any unabsorbed material (e.g., by gastric lavage) should be considered. (2)
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB00268
HMDB IDHMDB14413
PubChem Compound ID5095
ChEMBL IDCHEMBL589
ChemSpider ID4916
KEGG IDC07564
UniProt IDNot Available
OMIM ID
ChEBI ID8888
BioCyc IDNot Available
CTD IDNot Available
Stitch IDRopinirole
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkRopinirole
References
Synthesis Reference

DrugSyn.org

MSDSLink
General References
  1. Drugs.com [Link]
  2. RxList: The Internet Drug Index (2009). [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

General Function:
Potassium channel regulator activity
Specific Function:
Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase.
Gene Name:
DRD2
Uniprot ID:
P14416
Molecular Weight:
50618.91 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.0072 uMNot AvailableBindingDB 50020680
Inhibitory0.69183 uMNot AvailableBindingDB 50020680
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
  2. Iida M, Miyazaki I, Tanaka K, Kabuto H, Iwata-Ichikawa E, Ogawa N: Dopamine D2 receptor-mediated antioxidant and neuroprotective effects of ropinirole, a dopamine agonist. Brain Res. 1999 Aug 14;838(1-2):51-9. [10446316 ]
  3. de Mey C, Enterling D, Meineke I, Yeulet S: Interactions between domperidone and ropinirole, a novel dopamine D2-receptor agonist. Br J Clin Pharmacol. 1991 Oct;32(4):483-8. [1683559 ]
  4. Matsukawa N, Maki M, Yasuhara T, Hara K, Yu G, Xu L, Kim KM, Morgan JC, Sethi KD, Borlongan CV: Overexpression of D2/D3 receptors increases efficacy of ropinirole in chronically 6-OHDA-lesioned Parkinsonian rats. Brain Res. 2007 Jul 30;1160:113-23. Epub 2007 May 26. [17573046 ]
  5. Heier RF, Dolak LA, Duncan JN, Hyslop DK, Lipton MF, Martin IJ, Mauragis MA, Piercey MF, Nichols NF, Schreur PJ, Smith MW, Moon MW: Synthesis and biological activities of (R)-5,6-dihydro-N,N-dimethyl-4H-imidazo[4,5,1-ij]quinolin-5-amine and its metabolites. J Med Chem. 1997 Feb 28;40(5):639-46. [9057850 ]
  6. Peglion JL, Poitevin C, Mannoury La Cour C, Dupuis D, Millan MJ: Modulations of the amide function of the preferential dopamine D3 agonist (R,R)-S32504: improvements of affinity and selectivity for D3 versus D2 receptors. Bioorg Med Chem Lett. 2009 Apr 15;19(8):2133-8. doi: 10.1016/j.bmcl.2009.03.015. Epub 2009 Mar 9. [19324548 ]
  7. Meini M, Capovani B, Sbrana A, Massei GJ, Ravani L, Massimetti G, Daini L, Scaramelli D, Moncini M: A pilot open-label trial of ropinirole for cocaine dependence. Am J Addict. 2008 Mar-Apr;17(2):165-6. doi: 10.1080/10550490701862746. [18393062 ]
General Function:
G-protein coupled amine receptor activity
Specific Function:
Dopamine receptor whose activity is mediated by G proteins which inhibit adenylyl cyclase. Promotes cell proliferation.
Gene Name:
DRD3
Uniprot ID:
P35462
Molecular Weight:
44224.335 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.019 uMNot AvailableBindingDB 50020680
Inhibitory0.03631 uMNot AvailableBindingDB 50020680
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
  2. Heier RF, Dolak LA, Duncan JN, Hyslop DK, Lipton MF, Martin IJ, Mauragis MA, Piercey MF, Nichols NF, Schreur PJ, Smith MW, Moon MW: Synthesis and biological activities of (R)-5,6-dihydro-N,N-dimethyl-4H-imidazo[4,5,1-ij]quinolin-5-amine and its metabolites. J Med Chem. 1997 Feb 28;40(5):639-46. [9057850 ]
  3. Peglion JL, Poitevin C, Mannoury La Cour C, Dupuis D, Millan MJ: Modulations of the amide function of the preferential dopamine D3 agonist (R,R)-S32504: improvements of affinity and selectivity for D3 versus D2 receptors. Bioorg Med Chem Lett. 2009 Apr 15;19(8):2133-8. doi: 10.1016/j.bmcl.2009.03.015. Epub 2009 Mar 9. [19324548 ]
  4. Chen S, Zhang X, Yang D, Du Y, Li L, Li X, Ming M, Le W: D2/D3 receptor agonist ropinirole protects dopaminergic cell line against rotenone-induced apoptosis through inhibition of caspase- and JNK-dependent pathways. FEBS Lett. 2008 Mar 5;582(5):603-10. doi: 10.1016/j.febslet.2008.01.028. Epub 2008 Jan 31. [18242171 ]
  5. Meini M, Capovani B, Sbrana A, Massei GJ, Ravani L, Massimetti G, Daini L, Scaramelli D, Moncini M: A pilot open-label trial of ropinirole for cocaine dependence. Am J Addict. 2008 Mar-Apr;17(2):165-6. doi: 10.1080/10550490701862746. [18393062 ]
General Function:
Serotonin receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling inhibits adenylate cyclase activity and activates a phosphatidylinositol-calcium second messenger system that regulates the release of Ca(2+) ions from intracellular stores. Plays a role in the regulation of 5-hydroxytryptamine release and in the regulation of dopamine and 5-hydroxytryptamine metabolism. Plays a role in the regulation of dopamine and 5-hydroxytryptamine levels in the brain, and thereby affects neural activity, mood and behavior. Plays a role in the response to anxiogenic stimuli.
Gene Name:
HTR1A
Uniprot ID:
P08908
Molecular Weight:
46106.335 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.2884 uMNot AvailableBindingDB 50020680
Inhibitory1.706 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Heier RF, Dolak LA, Duncan JN, Hyslop DK, Lipton MF, Martin IJ, Mauragis MA, Piercey MF, Nichols NF, Schreur PJ, Smith MW, Moon MW: Synthesis and biological activities of (R)-5,6-dihydro-N,N-dimethyl-4H-imidazo[4,5,1-ij]quinolin-5-amine and its metabolites. J Med Chem. 1997 Feb 28;40(5):639-46. [9057850 ]
General Function:
Serotonin receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for ergot alkaloid derivatives, various anxiolytic and antidepressant drugs and other psychoactive substances, such as lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase activity. Arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Regulates the release of 5-hydroxytryptamine, dopamine and acetylcholine in the brain, and thereby affects neural activity, nociceptive processing, pain perception, mood and behavior. Besides, plays a role in vasoconstriction of cerebral arteries.
Gene Name:
HTR1B
Uniprot ID:
P28222
Molecular Weight:
43567.535 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Serotonin receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for ergot alkaloid derivatives, various anxiolytic and antidepressant drugs and other psychoactive substances. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors, such as adenylate cyclase. Signaling inhibits adenylate cyclase activity. Regulates the release of 5-hydroxytryptamine in the brain, and thereby affects neural activity. May also play a role in regulating the release of other neurotransmitters. May play a role in vasoconstriction.
Gene Name:
HTR1D
Uniprot ID:
P28221
Molecular Weight:
41906.38 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory1.38038 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Virus receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including mescaline, psilocybin, 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) and lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling activates phospholipase C and a phosphatidylinositol-calcium second messenger system that modulates the activity of phosphatidylinositol 3-kinase and promotes the release of Ca(2+) ions from intracellular stores. Affects neural activity, perception, cognition and mood. Plays a role in the regulation of behavior, including responses to anxiogenic situations and psychoactive substances. Plays a role in intestinal smooth muscle contraction, and may play a role in arterial vasoconstriction.(Microbial infection) Acts as a receptor for human JC polyomavirus/JCPyV.
Gene Name:
HTR2A
Uniprot ID:
P28223
Molecular Weight:
52602.58 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Serotonin receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various ergot alkaloid derivatives and psychoactive substances. Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling activates a phosphatidylinositol-calcium second messenger system that modulates the activity of phosphatidylinositol 3-kinase and down-stream signaling cascades and promotes the release of Ca(2+) ions from intracellular stores. Plays a role in the regulation of dopamine and 5-hydroxytryptamine release, 5-hydroxytryptamine uptake and in the regulation of extracellular dopamine and 5-hydroxytryptamine levels, and thereby affects neural activity. May play a role in the perception of pain. Plays a role in the regulation of behavior, including impulsive behavior. Required for normal proliferation of embryonic cardiac myocytes and normal heart development. Protects cardiomyocytes against apoptosis. Plays a role in the adaptation of pulmonary arteries to chronic hypoxia. Plays a role in vasoconstriction. Required for normal osteoblast function and proliferation, and for maintaining normal bone density. Required for normal proliferation of the interstitial cells of Cajal in the intestine.
Gene Name:
HTR2B
Uniprot ID:
P41595
Molecular Weight:
54297.41 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory3.80189 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Serotonin receptor activity
Specific Function:
G-protein coupled receptor for 5-hydroxytryptamine (serotonin). Also functions as a receptor for various drugs and psychoactive substances, including ergot alkaloid derivatives, 1-2,5,-dimethoxy-4-iodophenyl-2-aminopropane (DOI) and lysergic acid diethylamide (LSD). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of down-stream effectors. Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways. Signaling activates a phosphatidylinositol-calcium second messenger system that modulates the activity of phosphatidylinositol 3-kinase and down-stream signaling cascades and promotes the release of Ca(2+) ions from intracellular stores. Regulates neuronal activity via the activation of short transient receptor potential calcium channels in the brain, and thereby modulates the activation of pro-opiomelacortin neurons and the release of CRH that then regulates the release of corticosterone. Plays a role in the regulation of appetite and eating behavior, responses to anxiogenic stimuli and stress. Plays a role in insulin sensitivity and glucose homeostasis.
Gene Name:
HTR2C
Uniprot ID:
P28335
Molecular Weight:
51820.705 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Thioesterase binding
Specific Function:
Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is oxymetazoline > clonidine > epinephrine > norepinephrine > phenylephrine > dopamine > p-synephrine > p-tyramine > serotonin = p-octopamine. For antagonists, the rank order is yohimbine > phentolamine = mianserine > chlorpromazine = spiperone = prazosin > propanolol > alprenolol = pindolol.
Gene Name:
ADRA2A
Uniprot ID:
P08913
Molecular Weight:
48956.275 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory1.86209 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Epinephrine binding
Specific Function:
Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins. The rank order of potency for agonists of this receptor is clonidine > norepinephrine > epinephrine = oxymetazoline > dopamine > p-tyramine = phenylephrine > serotonin > p-synephrine / p-octopamine. For antagonists, the rank order is yohimbine > chlorpromazine > phentolamine > mianserine > spiperone > prazosin > alprenolol > propanolol > pindolol.
Gene Name:
ADRA2B
Uniprot ID:
P18089
Molecular Weight:
49565.8 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.75858 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Protein homodimerization activity
Specific Function:
Alpha-2 adrenergic receptors mediate the catecholamine-induced inhibition of adenylate cyclase through the action of G proteins.
Gene Name:
ADRA2C
Uniprot ID:
P18825
Molecular Weight:
49521.585 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory1.20226 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  3. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Protein heterodimerization activity
Specific Function:
This alpha-adrenergic receptor mediates its action by association with G proteins that activate a phosphatidylinositol-calcium second messenger system. Its effect is mediated by G(q) and G(11) proteins. Nuclear ADRA1A-ADRA1B heterooligomers regulate phenylephrine (PE)-stimulated ERK signaling in cardiac myocytes.
Gene Name:
ADRA1B
Uniprot ID:
P35368
Molecular Weight:
56835.375 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  2. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Alpha1-adrenergic receptor activity
Specific Function:
This alpha-adrenergic receptor mediates its effect through the influx of extracellular calcium.
Gene Name:
ADRA1D
Uniprot ID:
P25100
Molecular Weight:
60462.205 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
  2. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
G-protein coupled amine receptor activity
Specific Function:
Dopamine receptor whose activity is mediated by G proteins which activate adenylyl cyclase.
Gene Name:
DRD1
Uniprot ID:
P21728
Molecular Weight:
49292.765 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
General Function:
G-protein coupled amine receptor activity
Specific Function:
Dopamine receptor whose activity is mediated by G proteins which activate adenylyl cyclase.
Gene Name:
DRD5
Uniprot ID:
P21918
Molecular Weight:
52950.5 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Kvernmo T, Houben J, Sylte I: Receptor-binding and pharmacokinetic properties of dopaminergic agonists. Curr Top Med Chem. 2008;8(12):1049-67. [18691132 ]
  2. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]
General Function:
Sh3 domain binding
Specific Function:
Dopamine receptor responsible for neuronal signaling in the mesolimbic system of the brain, an area of the brain that regulates emotion and complex behavior. Its activity is mediated by G proteins which inhibit adenylyl cyclase. Modulates the circadian rhythm of contrast sensitivity by regulating the rhythmic expression of NPAS2 in the retinal ganglion cells (By similarity).
Gene Name:
DRD4
Uniprot ID:
P21917
Molecular Weight:
48359.86 Da
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
  2. Meini M, Capovani B, Sbrana A, Massei GJ, Ravani L, Massimetti G, Daini L, Scaramelli D, Moncini M: A pilot open-label trial of ropinirole for cocaine dependence. Am J Addict. 2008 Mar-Apr;17(2):165-6. doi: 10.1080/10550490701862746. [18393062 ]
General Function:
Serotonin receptor activity
Specific Function:
This is one of the several different receptors for 5-hydroxytryptamine (serotonin), a biogenic hormone that functions as a neurotransmitter, a hormone, and a mitogen. The activity of this receptor is mediated by G proteins that stimulate adenylate cyclase. It has a high affinity for tricyclic psychotropic drugs (By similarity). Controls pyramidal neurons migration during corticogenesis, through the regulation of CDK5 activity (By similarity). Is an activator of TOR signaling (PubMed:23027611).
Gene Name:
HTR6
Uniprot ID:
P50406
Molecular Weight:
46953.625 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Millan MJ, Cussac D, Gobert A, Lejeune F, Rivet JM, Mannoury La Cour C, Newman-Tancredi A, Peglion JL: S32504, a novel naphtoxazine agonist at dopamine D3/D2 receptors: I. Cellular, electrophysiological, and neurochemical profile in comparison with ropinirole. J Pharmacol Exp Ther. 2004 Jun;309(3):903-20. Epub 2004 Feb 20. [14978194 ]
General Function:
Receptor signaling protein activity
Specific Function:
Beta-adrenergic receptors mediate the catecholamine-induced activation of adenylate cyclase through the action of G proteins. This receptor binds epinephrine and norepinephrine with approximately equal affinity. Mediates Ras activation through G(s)-alpha- and cAMP-mediated signaling.
Gene Name:
ADRB1
Uniprot ID:
P08588
Molecular Weight:
51322.1 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50020680
References
  1. Millan MJ, Maiofiss L, Cussac D, Audinot V, Boutin JA, Newman-Tancredi A: Differential actions of antiparkinson agents at multiple classes of monoaminergic receptor. I. A multivariate analysis of the binding profiles of 14 drugs at 21 native and cloned human receptor subtypes. J Pharmacol Exp Ther. 2002 Nov;303(2):791-804. [12388666 ]