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Record Information
Version2.0
Creation Date2009-07-21 20:28:27 UTC
Update Date2014-12-24 20:25:55 UTC
Accession NumberT3D2995
Identification
Common NameNefazodone
ClassSmall Molecule
DescriptionNefazodone hydrochloride (trade name Serzone) is an antidepressant drug marketed by Bristol-Myers Squibb. Its sale was discontinued in 2003 in some countries, due to the small possibility of hepatic (liver) injury, which could lead to the need for a liver transplant, or even death. The incidence of severe liver damage is approximately 1 in 250,000 to 300,000 patient-years. On May 20, 2004, Bristol-Myers Squibb discontinued the sale of Serzone in the United States. [Wikipedia]
Compound Type
  • Amine
  • Analgesic
  • Antidepressant
  • Antidepressant, Second-Generation
  • Antidepressive Agent
  • Antidepressive Agent, Second-Generation
  • Drug
  • Ether
  • Metabolite
  • Organic Compound
  • Organochloride
  • Serotonin Agent
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
Synonym
1-(3-(4-(m-Chlorophenyl)-1-piperazinyl)propyl)-3-ethyl-4-(2-phenoxyethyl)-delta2-1,2,4-triazolin-5-one
Dutonin
Nefazodona
Nefazodonum
Serzone
Chemical FormulaC25H32ClN5O2
Average Molecular Mass470.007 g/mol
Monoisotopic Mass469.224 g/mol
CAS Registry Number83366-66-9
IUPAC Name1-{3-[4-(3-chlorophenyl)piperazin-1-yl]propyl}-3-ethyl-4-(2-phenoxyethyl)-4,5-dihydro-1H-1,2,4-triazol-5-one
Traditional Namenefazodone
SMILESCCC1=NN(CCCN2CCN(CC2)C2=CC=CC(Cl)=C2)C(=O)N1CCOC1=CC=CC=C1
InChI IdentifierInChI=1S/C25H32ClN5O2/c1-2-24-27-31(25(32)30(24)18-19-33-23-10-4-3-5-11-23)13-7-12-28-14-16-29(17-15-28)22-9-6-8-21(26)20-22/h3-6,8-11,20H,2,7,12-19H2,1H3
InChI KeyInChIKey=VRBKIVRKKCLPHA-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as phenylpiperazines. Phenylpiperazines are compounds containing a phenylpiperazine skeleton, which consists of a piperazine bound to a phenyl group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazinanes
Sub ClassPiperazines
Direct ParentPhenylpiperazines
Alternative Parents
Substituents
  • Phenylpiperazine
  • N-arylpiperazine
  • Phenol ether
  • Tertiary aliphatic/aromatic amine
  • Phenoxy compound
  • Dialkylarylamine
  • Aniline or substituted anilines
  • Chlorobenzene
  • N-alkylpiperazine
  • Halobenzene
  • Alkyl aryl ether
  • Monocyclic benzene moiety
  • Aryl halide
  • Aryl chloride
  • Benzenoid
  • Heteroaromatic compound
  • Azole
  • 1,2,4-triazole
  • Tertiary aliphatic amine
  • Tertiary amine
  • Ether
  • Azacycle
  • Organooxygen compound
  • Organonitrogen compound
  • Organochloride
  • Organohalogen compound
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Amine
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting Point83.5°C
Boiling PointNot Available
Solubility6.98e-02 g/L
LogP4.7
Predicted Properties
PropertyValueSource
Water Solubility0.0698 mg/mLALOGPS
logP3.71ALOGPS
logP4.65ChemAxon
logS-3.8ALOGPS
pKa (Strongest Basic)7.09ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area51.62 Å2ChemAxon
Rotatable Bond Count10ChemAxon
Refractivity132.38 m3·mol-1ChemAxon
Polarizability51.85 Å3ChemAxon
Number of Rings4ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MSsplash10-08fv-6496100000-3f42082c30f022624e00View in MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-00di-0260900000-3ebf8f0b9eda5fea1378View in MoNA
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-00di-3790200000-9f64b1295a633dcdd772View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0152900000-340890a453c0a56c76b3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0fbl-4695100000-93bef331c390dbfee2d6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-01pd-7940000000-d9eeb95454a6d048ce65View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-016r-3931500000-a506620891ae02e35e82View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-002f-9730100000-83a513c505af8bed8b82View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9200000000-522fe62ba68195d5d1b2View in MoNA
MSMass Spectrum (Electron Ionization)splash10-0uk9-9846000000-49cb6e97c09a9e806dd5View in MoNA
Toxicity Profile
Route of ExposureNefazodone is rapidly and completely absorbed. Its absolute bioavailability is low (about 20%).
Mechanism of ToxicityWithin the serotonergic system, nefazodone acts as an antagonist at type 2 serotonin (5-HT2) post-synaptic receptors and, like fluoxetine-type antidepressants, inhibits pre-synaptic serotonin (5-HT) reuptake. These mechanisms increase the amount of serotonin available to interact with 5-HT receptors. Within the noradrenergic system, nefazodone inhibits norepinephrine uptake minimally. Nefazodone also antagonizes alpha(1)-adrenergic receptors, producing sedation, muscle relaxation, and a variety of cardiovascular effects. Nefazodone's affinity for benzodiazepine, cholinergic, dopaminergic, histaminic, and beta or alpha(2)-adrenergic receptors is not significant.
MetabolismHepatic. Route of Elimination: Nefazodone is extensively metabolized after oral administration by n-dealkylation and aliphatic and aromatic hydroxylation, and less than 1% of administered nefazodone is excreted unchanged in urine. Half Life: 2-4 hours
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesNefazodone (sold as Serzone, Nefadar) is a psychoactive drug and antidepressant. [wikipedia]
Minimum Risk LevelNot Available
Health EffectsSerious side effects include an allergic reaction, fainting, or painful/prolonged erection. [Wikipedia]
SymptomsCases of life-threatening hepatic failure have been reported in patients treated with nefazodone.
TreatmentTreatment should consist of those general measures employed in the management of overdosage with any antidepressant. Ensure an adequate airway, oxygenation, and ventilation. Monitor cardiac rhythm and vital signs. General supportive and symptomatic measures are also recommended. Induction of emesis is not recommended. Gastric lavage with a large-bore orogastric tube with appropriate airway protection, if needed, may be indicated if performed soon after ingestion, or in symptomatic patients. Activated charcoal should be administered. Due to the wide distribution of nefazodone in body tissues, forced diuresis, dialysis, hemoperfusion, and exchange transfusion are unlikely to be of benefit. No specific antidotes for nefazodone are known. (3)
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDDB01149
HMDB IDHMDB15280
PubChem Compound ID4449
ChEMBL IDCHEMBL623
ChemSpider ID4294
KEGG IDC07256
UniProt IDNot Available
OMIM ID
ChEBI ID7494
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNefazodone
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNefazodone
References
Synthesis Reference

DrugSyn.org

MSDST3D2995.pdf
General References
  1. Davis R, Whittington R, Bryson HM: Nefazodone. A review of its pharmacology and clinical efficacy in the management of major depression. Drugs. 1997 Apr;53(4):608-36. [9098663 ]
  2. Drugs.com [Link]
  3. RxList: The Internet Drug Index (2009). [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available

Targets

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
Inhibitory0.0058 uMNot AvailableBindingDB 50069447
References
  1. Hidalgo R, Hertzberg MA, Mellman T, Petty F, Tucker P, Weisler R, Zisook S, Chen S, Churchill E, Davidson J: Nefazodone in post-traumatic stress disorder: results from six open-label trials. Int Clin Psychopharmacol. 1999 Mar;14(2):61-8. [10220119 ]
  2. Meyer JH, Cho R, Kennedy S, Kapur S: The effects of single dose nefazodone and paroxetine upon 5-HT2A binding potential in humans using [18F]-setoperone PET. Psychopharmacology (Berl). 1999 Jun;144(3):279-81. [10435395 ]
  3. Horton JC, Trobe JD: Akinetopsia from nefazodone toxicity. Am J Ophthalmol. 1999 Oct;128(4):530-1. [10577608 ]
  4. Eckler JR, Rabin RA, Winter JC: Nefazodone in the rat: mimicry and antagonism of [-]-DOM-induced stimulus control. Pharmacol Biochem Behav. 2003 May;75(2):405-10. [12873632 ]
  5. Avila A, Cardona X, Martin-Baranera M, Maho P, Sastre F, Bello J: Does nefazodone improve both depression and Parkinson disease? A pilot randomized trial. J Clin Psychopharmacol. 2003 Oct;23(5):509-13. [14520130 ]
  6. Seo HJ, Park EJ, Kim MJ, Kang SY, Lee SH, Kim HJ, Lee KN, Jung ME, Lee M, Kim MS, Son EJ, Park WK, Kim J, Lee J: Design and synthesis of novel arylpiperazine derivatives containing the imidazole core targeting 5-HT(2A) receptor and 5-HT transporter. J Med Chem. 2011 Sep 22;54(18):6305-18. doi: 10.1021/jm200682b. Epub 2011 Aug 23. [21823597 ]
General Function:
Serotonin:sodium symporter activity
Specific Function:
Serotonin transporter whose primary function in the central nervous system involves the regulation of serotonergic signaling via transport of serotonin molecules from the synaptic cleft back into the pre-synaptic terminal for re-utilization. Plays a key role in mediating regulation of the availability of serotonin to other receptors of serotonergic systems. Terminates the action of serotonin and recycles it in a sodium-dependent manner.
Gene Name:
SLC6A4
Uniprot ID:
P31645
Molecular Weight:
70324.165 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.2 uMNot AvailableBindingDB 50069447
Inhibitory0.29 uMNot AvailableBindingDB 50069447
Inhibitory0.459 uMNot AvailableBindingDB 50069447
Inhibitory0.549 uMNot AvailableBindingDB 50069447
Dissociation0.2 uMNot AvailableBindingDB 50069447
References
  1. Owens MJ, Ieni JR, Knight DL, Winders K, Nemeroff CB: The serotonergic antidepressant nefazodone inhibits the serotonin transporter: in vivo and ex vivo studies. Life Sci. 1995;57(24):PL373-80. [7475971 ]
  2. Narayan M, Anderson G, Cellar J, Mallison RT, Price LH, Nelson JC: Serotonin transporter-blocking properties of nefazodone assessed by measurement of platelet serotonin. J Clin Psychopharmacol. 1998 Feb;18(1):67-71. [9472845 ]
  3. Carlier PR, Lo MM, Lo PC, Richelson E, Tatsumi M, Reynolds IJ, Sharma TA: Synthesis of a potent wide-spectrum serotonin-, norepinephrine-, dopamine-reuptake inhibitor (SNDRI) and a species-selective dopamine-reuptake inhibitor based on the gamma-amino alcohol functional group. Bioorg Med Chem Lett. 1998 Mar 3;8(5):487-92. [9871604 ]
  4. Tatsumi M, Groshan K, Blakely RD, Richelson E: Pharmacological profile of antidepressants and related compounds at human monoamine transporters. Eur J Pharmacol. 1997 Dec 11;340(2-3):249-58. [9537821 ]
  5. Seo HJ, Park EJ, Kim MJ, Kang SY, Lee SH, Kim HJ, Lee KN, Jung ME, Lee M, Kim MS, Son EJ, Park WK, Kim J, Lee J: Design and synthesis of novel arylpiperazine derivatives containing the imidazole core targeting 5-HT(2A) receptor and 5-HT transporter. J Med Chem. 2011 Sep 22;54(18):6305-18. doi: 10.1021/jm200682b. Epub 2011 Aug 23. [21823597 ]
  6. Owens MJ, Morgan WN, Plott SJ, Nemeroff CB: Neurotransmitter receptor and transporter binding profile of antidepressants and their metabolites. J Pharmacol Exp Ther. 1997 Dec;283(3):1305-22. [9400006 ]
General Function:
Norepinephrine:sodium symporter activity
Specific Function:
Amine transporter. Terminates the action of noradrenaline by its high affinity sodium-dependent reuptake into presynaptic terminals.
Gene Name:
SLC6A2
Uniprot ID:
P23975
Molecular Weight:
69331.42 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.36 uMNot AvailableBindingDB 50069447
Inhibitory0.618 uMNot AvailableBindingDB 50069447
Inhibitory0.713 uMNot AvailableBindingDB 50069447
Dissociation0.36 uMNot AvailableBindingDB 50069447
References
  1. Owens MJ, Ieni JR, Knight DL, Winders K, Nemeroff CB: The serotonergic antidepressant nefazodone inhibits the serotonin transporter: in vivo and ex vivo studies. Life Sci. 1995;57(24):PL373-80. [7475971 ]
  2. Owen D, Du L, Bakish D, Lapierre YD, Hrdina PD: Norepinephrine transporter gene polymorphism is not associated with susceptibility to major depression. Psychiatry Res. 1999 Jul 30;87(1):1-5. [10512149 ]
  3. Carlier PR, Lo MM, Lo PC, Richelson E, Tatsumi M, Reynolds IJ, Sharma TA: Synthesis of a potent wide-spectrum serotonin-, norepinephrine-, dopamine-reuptake inhibitor (SNDRI) and a species-selective dopamine-reuptake inhibitor based on the gamma-amino alcohol functional group. Bioorg Med Chem Lett. 1998 Mar 3;8(5):487-92. [9871604 ]
  4. Tatsumi M, Groshan K, Blakely RD, Richelson E: Pharmacological profile of antidepressants and related compounds at human monoamine transporters. Eur J Pharmacol. 1997 Dec 11;340(2-3):249-58. [9537821 ]
  5. Owens MJ, Morgan WN, Plott SJ, Nemeroff CB: Neurotransmitter receptor and transporter binding profile of antidepressants and their metabolites. J Pharmacol Exp Ther. 1997 Dec;283(3):1305-22. [9400006 ]
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
Inhibitory0.026 uMNot AvailableBindingDB 50069447
References
  1. Millan MJ: Serotonin 5-HT2C receptors as a target for the treatment of depressive and anxious states: focus on novel therapeutic strategies. Therapie. 2005 Sep-Oct;60(5):441-60. [16433010 ]
  2. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
  3. Cusack B, Nelson A, Richelson E: Binding of antidepressants to human brain receptors: focus on newer generation compounds. Psychopharmacology (Berl). 1994 May;114(4):559-65. [7855217 ]
  4. Chanrion B, Mannoury la Cour C, Gavarini S, Seimandi M, Vincent L, Pujol JF, Bockaert J, Marin P, Millan MJ: Inverse agonist and neutral antagonist actions of antidepressants at recombinant and native 5-hydroxytryptamine2C receptors: differential modulation of cell surface expression and signal transduction. Mol Pharmacol. 2008 Mar;73(3):748-57. Epub 2007 Dec 14. [18083778 ]
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:
ADRA1A
Uniprot ID:
P35348
Molecular Weight:
51486.005 Da
References
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [17016423 ]
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
Inhibitory0.084 uMNot AvailableBindingDB 50069447
Inhibitory0.64 uMNot AvailableBindingDB 50069447
References
  1. Cusack B, Nelson A, Richelson E: Binding of antidepressants to human brain receptors: focus on newer generation compounds. Psychopharmacology (Berl). 1994 May;114(4):559-65. [7855217 ]
  2. Owens MJ, Morgan WN, Plott SJ, Nemeroff CB: Neurotransmitter receptor and transporter binding profile of antidepressants and their metabolites. J Pharmacol Exp Ther. 1997 Dec;283(3):1305-22. [9400006 ]
General Function:
Monoamine transmembrane transporter activity
Specific Function:
Amine transporter. Terminates the action of dopamine by its high affinity sodium-dependent reuptake into presynaptic terminals.
Gene Name:
SLC6A3
Uniprot ID:
Q01959
Molecular Weight:
68494.255 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory0.36 uMNot AvailableBindingDB 50069447
Dissociation0.36 uMNot AvailableBindingDB 50069447
References
  1. Tatsumi M, Groshan K, Blakely RD, Richelson E: Pharmacological profile of antidepressants and related compounds at human monoamine transporters. Eur J Pharmacol. 1997 Dec 11;340(2-3):249-58. [9537821 ]
  2. Carlier PR, Lo MM, Lo PC, Richelson E, Tatsumi M, Reynolds IJ, Sharma TA: Synthesis of a potent wide-spectrum serotonin-, norepinephrine-, dopamine-reuptake inhibitor (SNDRI) and a species-selective dopamine-reuptake inhibitor based on the gamma-amino alcohol functional group. Bioorg Med Chem Lett. 1998 Mar 3;8(5):487-92. [9871604 ]
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
Inhibitory0.08 uMNot AvailableBindingDB 50069447
References
  1. Cusack B, Nelson A, Richelson E: Binding of antidepressants to human brain receptors: focus on newer generation compounds. Psychopharmacology (Berl). 1994 May;114(4):559-65. [7855217 ]
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
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
General Function:
Vitamin d3 25-hydroxylase activity
Specific Function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide (PubMed:11159812). Catalyzes 4-beta-hydroxylation of cholesterol. May catalyze 25-hydroxylation of cholesterol in vitro (PubMed:21576599).
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular Weight:
57342.67 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory1 uMNot AvailableBindingDB 50069447
IC500.015 uMNot AvailableBindingDB 50069447
IC501.5 uMNot AvailableBindingDB 50069447
References
  1. Orr ST, Ripp SL, Ballard TE, Henderson JL, Scott DO, Obach RS, Sun H, Kalgutkar AS: Mechanism-based inactivation (MBI) of cytochrome P450 enzymes: structure-activity relationships and discovery strategies to mitigate drug-drug interaction risks. J Med Chem. 2012 Jun 14;55(11):4896-933. doi: 10.1021/jm300065h. Epub 2012 Mar 27. [22409598 ]
General Function:
Histamine receptor activity
Specific Function:
In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamine release from adrenal medulla, as well as mediating neurotransmission in the central nervous system.
Gene Name:
HRH1
Uniprot ID:
P35367
Molecular Weight:
55783.61 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50069447
References
  1. Cusack B, Nelson A, Richelson E: Binding of antidepressants to human brain receptors: focus on newer generation compounds. Psychopharmacology (Berl). 1994 May;114(4):559-65. [7855217 ]
General Function:
Xenobiotic-transporting atpase activity
Specific Function:
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells.
Gene Name:
ABCB1
Uniprot ID:
P08183
Molecular Weight:
141477.255 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
IC504.7 uMNot AvailableBindingDB 50069447
References
  1. Stormer E, von Moltke LL, Perloff MD, Greenblatt DJ: P-glycoprotein interactions of nefazodone and trazodone in cell culture. J Clin Pharmacol. 2001 Jul;41(7):708-14. [11452702 ]
General Function:
G-protein coupled acetylcholine receptor activity
Specific Function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is adenylate cyclase inhibition. Signaling promotes phospholipase C activity, leading to the release of inositol trisphosphate (IP3); this then triggers calcium ion release into the cytosol.
Gene Name:
CHRM2
Uniprot ID:
P08172
Molecular Weight:
51714.605 Da
Binding/Activity Constants
TypeValueAssay TypeAssay Source
Inhibitory>10 uMNot AvailableBindingDB 50069447
References
  1. Cusack B, Nelson A, Richelson E: Binding of antidepressants to human brain receptors: focus on newer generation compounds. Psychopharmacology (Berl). 1994 May;114(4):559-65. [7855217 ]
General Function:
Voltage-gated potassium channel activity involved in ventricular cardiac muscle cell action potential repolarization
Specific Function:
Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel. Channel properties are modulated by cAMP and subunit assembly. Mediates the rapidly activating component of the delayed rectifying potassium current in heart (IKr). Isoforms USO have no channel activity by themself, but modulates channel characteristics by forming heterotetramers with other isoforms which are retained intracellularly and undergo ubiquitin-dependent degradation.
Gene Name:
KCNH2
Uniprot ID:
Q12809
Molecular Weight:
126653.52 Da
References
  1. Shin DS, Park MJ, Lee HA, Lee JY, Chung HC, Yoo DS, Chae CH, Park SJ, Kim KS, Bae MA: A novel assessment of nefazodone-induced hERG inhibition by electrophysiological and stereochemical method. Toxicol Appl Pharmacol. 2014 Feb 1;274(3):361-71. doi: 10.1016/j.taap.2013.12.012. Epub 2013 Dec 26. [24374264 ]