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Identification
- Summary
Nefazodone is an antidepressant used in the treatment of depression.
- Generic Name
- Nefazodone
- DrugBank Accession Number
- DB01149
- Background
Nefazodone 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. Drug-induced hepatic injuries were associated with an risk of elevated need for a liver transplant, or even death, with the incidence of severe liver damage was shown to be 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.
- Type
- Small Molecule
- Groups
- Approved, Withdrawn
- Structure
Structure for Nefazodone (DB01149)
- Weight
- Average: 470.007
Monoisotopic: 469.224453 - Chemical Formula
- C25H32ClN5O2
- Synonyms
- 1-(3-(4-(m-Chlorophenyl)-1-piperazinyl)propyl)-3-ethyl-4-(2-phenoxyethyl)-delta2-1,2,4-triazolin-5-one
- Nefazodona
- Nefazodone
- Nefazodonum
Pharmacology
- Indication
For the treatment of depression.
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Indication Type Indication Combined Product Details Approval Level Age Group Patient Characteristics Dose Form Treatment of Depression •••••••••••• - Contraindications & Blackbox Warnings
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Nefazodone, an antidepressant synthetically derived phenylpiperazine, is used to treat major depression. Although it is structurally similar to trazodone, nefazodone has a mechanism of action different from other antidepressants and, hence, lacks the risk for major cardiovascular toxicity seen with tricyclics and insomnia and inhibition of REM sleep seen with the selective serotonin reuptake inhibitors.
- Mechanism of action
Within 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.
Target Actions Organism A5-hydroxytryptamine receptor 2A antagonistHumans A5-hydroxytryptamine receptor 2C antagonistHumans ASodium-dependent serotonin transporter inhibitorHumans A5-hydroxytryptamine receptor 1A antagonistHumans ASodium-dependent noradrenaline transporter inhibitorHumans USodium-dependent dopamine transporter inhibitorHumans UAlpha-1B adrenergic receptor other/unknownHumans UAlpha-2A adrenergic receptor antagonistHumans NAlpha-1A adrenergic receptor antagonistHumans UVoltage-gated inwardly rectifying potassium channel KCNH2 antagonistHumans - Absorption
Nefazodone is rapidly and completely absorbed. Its absolute bioavailability is low (about 20%).
- Volume of distribution
- 0.22 to 0.87 L/kg
- Protein binding
Greater than 99% (in vitro, human plasma proteins).
- Metabolism
Hepatic.
Hover over products below to view reaction partners
- 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
- Clearance
Not Available
- Adverse Effects
Improve decision support & research outcomesWith structured adverse effects data, including: blackbox warnings, adverse reactions, warning & precautions, & incidence rates. View sample adverse effects data in our new Data Library!Improve decision support & research outcomes with our structured adverse effects data.- Toxicity
Cases of life-threatening hepatic failure have been reported in patients treated with nefazodone.
- Pathways
- Not Available
- Pharmacogenomic Effects/ADRs
- Not Available
Interactions
- Drug Interactions
- This information should not be interpreted without the help of a healthcare provider. If you believe you are experiencing an interaction, contact a healthcare provider immediately. The absence of an interaction does not necessarily mean no interactions exist.
Drug Interaction Integrate drug-drug
interactions in your software1,2-Benzodiazepine The metabolism of 1,2-Benzodiazepine can be decreased when combined with Nefazodone. Abacavir Abacavir may decrease the excretion rate of Nefazodone which could result in a higher serum level. Abametapir The serum concentration of Nefazodone can be increased when it is combined with Abametapir. Abatacept The metabolism of Nefazodone can be increased when combined with Abatacept. Abciximab The risk or severity of hemorrhage can be increased when Nefazodone is combined with Abciximab. - Food Interactions
- Avoid alcohol.
- Take at the same time every day.
- Take with or without food.
Products
Drug product information from 10+ global regionsOur datasets provide approved product information including:dosage, form, labeller, route of administration, and marketing period.Access drug product information from over 10 global regions.- Product Ingredients
Ingredient UNII CAS InChI Key Nefazodone hydrochloride 27X63J94GR 82752-99-6 DYCKFEBIOUQECE-UHFFFAOYSA-N - Product Images
- International/Other Brands
- Dutonin
- Brand Name Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Nefazodone hydrochloride Tablet 250 mg/1 Oral Ranbaxy Italia S.P.A. 2008-12-24 Not applicable US 
Nefazodone hydrochloride Tablet 100 mg/1 Oral Ranbaxy Italia S.P.A. 2008-12-24 Not applicable US Nefazodone hydrochloride Tablet 200 mg/1 Oral Ranbaxy Italia S.P.A. 2008-12-24 Not applicable US Nefazodone hydrochloride Tablet 50 mg/1 Oral Ranbaxy Italia S.P.A. 2008-12-24 Not applicable US Nefazodone hydrochloride Tablet 150 mg/1 Oral Ranbaxy Italia S.P.A. 2008-12-24 Not applicable US - Generic Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Lin-nefazodone Tablet 100 mg / tab Oral Linson Pharma Co. 2000-09-11 2003-11-28 Canada 
Lin-nefazodone Tablet 200 mg / tab Oral Linson Pharma Co. 2000-09-11 2003-11-28 Canada Lin-nefazodone Tablet 50 mg / tab Oral Linson Pharma Co. 2000-09-11 2003-11-28 Canada Lin-nefazodone Tablet 150 mg / tab Oral Linson Pharma Co. 2000-09-11 2003-11-28 Canada Nefazodone Hydrochloride Tablet 250 mg/1 Oral AvKARE 2013-07-30 2018-09-26 US 
Categories
- ATC Codes
- N06AX06 — Nefazodone
- Drug Categories
- Adrenergic alpha-1 Receptor Antagonists
- Adrenergic alpha-Antagonists
- Adrenergic Antagonists
- Agents that produce hypertension
- Analgesics
- Antidepressive Agents
- Antidepressive Agents Indicated for Depression
- Antidepressive Agents, Second-Generation
- Antidepressive Agents, Triazolopyridine
- BSEP/ABCB11 Substrates
- Central Nervous System Agents
- Central Nervous System Depressants
- Combined Inhibitors of Serotonin/Norepinephrine Reuptake
- Cytochrome P-450 CYP2D6 Inhibitors
- Cytochrome P-450 CYP2D6 Inhibitors (weak)
- Cytochrome P-450 CYP2D6 Substrates
- Cytochrome P-450 CYP3A Inhibitors
- Cytochrome P-450 CYP3A Substrates
- Cytochrome P-450 CYP3A4 Inhibitors
- Cytochrome P-450 CYP3A4 Inhibitors (strong)
- Cytochrome P-450 CYP3A4 Substrates
- Cytochrome P-450 Enzyme Inhibitors
- Cytochrome P-450 Substrates
- Drugs that are Mainly Renally Excreted
- Hypoglycemia-Associated Agents
- Membrane Transport Modulators
- Nervous System
- Neurotransmitter Agents
- Neurotransmitter Uptake Inhibitors
- OATP1B3 inhibitors
- Organic Anion Transporting Polypeptide 2B1 Inhibitors
- P-glycoprotein inducers
- P-glycoprotein inhibitors
- Psychoanaleptics
- Psychotropic Drugs
- Selective Serotonin Reuptake Inhibitors
- Serotonergic Drugs Shown to Increase Risk of Serotonin Syndrome
- Serotonin 5-HT1 Receptor Antagonists
- Serotonin 5-HT1A Receptor Antagonists
- Serotonin 5-HT2 Receptor Antagonists
- Serotonin 5-HT2A Receptor Antagonists
- Serotonin 5-HT2C Receptor Antagonists
- Serotonin Agents
- Serotonin and Noradrenaline Reuptake Inhibitors
- Serotonin antagonist and reuptake inhibitors (SARIs)
- Serotonin Modulators
- Serotonin Receptor Antagonists
- Chemical TaxonomyProvided by Classyfire
- Description
- This compound belongs to the class of organic compounds known as phenylpiperazines. These are compounds containing a phenylpiperazine skeleton, which consists of a piperazine bound to a phenyl group.
- Kingdom
- Organic compounds
- Super Class
- Organoheterocyclic compounds
- Class
- Diazinanes
- Sub Class
- Piperazines
- Direct Parent
- Phenylpiperazines
- Alternative Parents
- N-arylpiperazines / Aniline and substituted anilines / Dialkylarylamines / Phenoxy compounds / Phenol ethers / Alkyl aryl ethers / Chlorobenzenes / N-alkylpiperazines / Aryl chlorides / Heteroaromatic compounds show 7 more
- Substituents
- 1,2,4-triazole / Alkyl aryl ether / Amine / Aniline or substituted anilines / Aromatic heteromonocyclic compound / Aryl chloride / Aryl halide / Azacycle / Azole / Benzenoid show 23 more
- Molecular Framework
- Aromatic heteromonocyclic compounds
- External Descriptors
- aromatic ether, N-arylpiperazine, monochlorobenzenes, N-alkylpiperazine, triazoles (CHEBI:7494)
- Affected organisms
- Humans and other mammals
Chemical Identifiers
- UNII
- 59H4FCV1TF
- CAS number
- 83366-66-9
- InChI Key
- VRBKIVRKKCLPHA-UHFFFAOYSA-N
- InChI
- InChI=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
- IUPAC Name
- 1-{3-[4-(3-chlorophenyl)piperazin-1-yl]propyl}-3-ethyl-4-(2-phenoxyethyl)-4,5-dihydro-1H-1,2,4-triazol-5-one
- SMILES
- CCC1=NN(CCCN2CCN(CC2)C2=CC(Cl)=CC=C2)C(=O)N1CCOC1=CC=CC=C1
References
- Synthesis Reference
- US4338317
- General References
- 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. [Article]
- External Links
- Human Metabolome Database
- HMDB0015280
- KEGG Drug
- D08257
- KEGG Compound
- C07256
- PubChem Compound
- 4449
- PubChem Substance
- 46508323
- ChemSpider
- 4294
- BindingDB
- 50069447
- 31565
- ChEBI
- 7494
- ChEMBL
- CHEMBL623
- ZINC
- ZINC000000538065
- Therapeutic Targets Database
- DAP000042
- PharmGKB
- PA450603
- RxList
- RxList Drug Page
- Drugs.com
- Drugs.com Drug Page
- Wikipedia
- Nefazodone
- FDA label
- Download (152 KB)
Clinical Trials
- Clinical Trials
Clinical Trial & Rare Diseases Add-on Data Package
Explore 4,000+ rare diseases, orphan drugs & condition pairs, clinical trial why stopped data, & more. Preview package Phase Status Purpose Conditions Count Start Date Why Stopped 100+ additional columns Unlock 175K+ rows when you subscribe.View sample data4 Completed Treatment Social Anxiety Disorder (SAD) 1 somestatus stop reason just information to hide 3 Completed Treatment Cocaine Related Disorders 1 somestatus stop reason just information to hide 2 Completed Treatment Cocaine Related Disorders 1 somestatus stop reason just information to hide 2 Completed Treatment Cocaine Related Disorders / Substance Related Disorders 1 somestatus stop reason just information to hide 2 Completed Treatment Marijuana Abuse 1 somestatus stop reason just information to hide
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- AQ Pharmaceuticals Inc.
- Bristol-Myers Squibb Co.
- Direct Dispensing Inc.
- Doctor Reddys Laboratories Ltd.
- Eon Labs
- Ivax Pharmaceuticals
- Kaiser Foundation Hospital
- Murfreesboro Pharmaceutical Nursing Supply
- Nucare Pharmaceuticals Inc.
- Par Pharmaceuticals
- Pharma Pac LLC
- Physicians Total Care Inc.
- Ranbaxy Laboratories
- Rebel Distributors Corp.
- Resource Optimization and Innovation LLC
- Southwood Pharmaceuticals
- Stat Rx Usa
- Teva Pharmaceutical Industries Ltd.
- Va Cmop Dallas
- Dosage Forms
Form Route Strength Tablet Oral 100 mg / tab Tablet Oral 150 mg / tab Tablet Oral 200 mg / tab Tablet Oral 50 mg / tab Tablet Oral Tablet Oral 100 mg/1 Tablet Oral 150 mg/1 Tablet Oral 200 mg/1 Tablet Oral 250 mg/1 Tablet Oral 50 mg/1 Tablet Oral 100 mg Tablet Oral 150 mg Tablet Oral 200 mg Tablet Oral 50 mg - Prices
Unit description Cost Unit Nefazodone hcl 250 mg tablet 1.82USD tablet Nefazodone hcl 200 mg tablet 1.78USD tablet Nefazodone hcl 150 mg tablet 1.75USD tablet Nefazodone hcl 100 mg tablet 1.72USD tablet Nefazodone hcl 50 mg tablet 1.68USD tablet Serzone 100 mg tablet 1.53USD tablet DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.- Patents
- Not Available
Properties
- State
- Solid
- Experimental Properties
Property Value Source melting point (°C) 83.5 °C PhysProp logP 4.7 Not Available - Predicted Properties
Property Value Source Water Solubility 0.0698 mg/mL ALOGPS logP 3.71 ALOGPS logP 4.65 Chemaxon logS -3.8 ALOGPS pKa (Strongest Basic) 7.09 Chemaxon Physiological Charge 0 Chemaxon Hydrogen Acceptor Count 5 Chemaxon Hydrogen Donor Count 0 Chemaxon Polar Surface Area 51.62 Å2 Chemaxon Rotatable Bond Count 10 Chemaxon Refractivity 132.38 m3·mol-1 Chemaxon Polarizability 51.85 Å3 Chemaxon Number of Rings 4 Chemaxon Bioavailability 1 Chemaxon Rule of Five Yes Chemaxon Ghose Filter No Chemaxon Veber's Rule No Chemaxon MDDR-like Rule Yes Chemaxon - Predicted ADMET Features
Property Value Probability Human Intestinal Absorption + 1.0 Blood Brain Barrier + 0.9744 Caco-2 permeable + 0.5296 P-glycoprotein substrate Substrate 0.5809 P-glycoprotein inhibitor I Inhibitor 0.8564 P-glycoprotein inhibitor II Inhibitor 0.8373 Renal organic cation transporter Inhibitor 0.5685 CYP450 2C9 substrate Non-substrate 0.7898 CYP450 2D6 substrate Non-substrate 0.9115 CYP450 3A4 substrate Substrate 0.7506 CYP450 1A2 substrate Non-inhibitor 0.7931 CYP450 2C9 inhibitor Inhibitor 0.5999 CYP450 2D6 inhibitor Non-inhibitor 0.8799 CYP450 2C19 inhibitor Non-inhibitor 0.5434 CYP450 3A4 inhibitor Non-inhibitor 0.8711 CYP450 inhibitory promiscuity High CYP Inhibitory Promiscuity 0.8028 Ames test Non AMES toxic 0.5208 Carcinogenicity Non-carcinogens 0.7388 Biodegradation Not ready biodegradable 1.0 Rat acute toxicity 2.9067 LD50, mol/kg Not applicable hERG inhibition (predictor I) Strong inhibitor 0.8749 hERG inhibition (predictor II) Inhibitor 0.7288
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
- Chromatographic Properties
Collision Cross Sections (CCS)
Adduct CCS Value (Å2) Source type Source [M-H]- 220.0025396 predictedDarkChem Lite v0.1.0 [M-H]- 201.88582 predictedDeepCCS 1.0 (2019) [M+H]+ 219.8069396 predictedDarkChem Lite v0.1.0 [M+H]+ 204.24382 predictedDeepCCS 1.0 (2019) [M+Na]+ 219.5226396 predictedDarkChem Lite v0.1.0 [M+Na]+ 210.632 predictedDeepCCS 1.0 (2019)
Targets
Build, predict & validate machine-learning models
Use our structured and evidence-based datasets to unlock newinsights and accelerate drug research.
Use our structured and evidence-based datasets to unlock new insights and accelerate drug research.
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Antagonist
- General Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin) (PubMed:1330647, PubMed:18703043, PubMed:19057895, PubMed:21645528, PubMed:22300836, PubMed:35084960, PubMed:38552625). 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) (PubMed:28129538, PubMed:35084960). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors (PubMed:28129538, PubMed:35084960). HTR2A is coupled to G(q)/G(11) G alpha proteins and activates phospholipase C-beta, releasing diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) second messengers that modulate the activity of phosphatidylinositol 3-kinase and promote the release of Ca(2+) ions from intracellular stores, respectively (PubMed:18703043, PubMed:28129538, PubMed:35084960). Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways (PubMed:28129538, PubMed:35084960). Affects neural activity, perception, cognition and mood (PubMed:18297054). 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 (By similarity)
- Specific Function
- 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding
- Gene Name
- HTR2A
- Uniprot ID
- P28223
- Uniprot Name
- 5-hydroxytryptamine receptor 2A
- Molecular Weight
- 52602.58 Da
References
- 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. [Article]
- 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. [Article]
- Horton JC, Trobe JD: Akinetopsia from nefazodone toxicity. Am J Ophthalmol. 1999 Oct;128(4):530-1. [Article]
- 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. [Article]
- 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. [Article]
- Taylor DP, Carter RB, Eison AS, Mullins UL, Smith HL, Torrente JR, Wright RN, Yocca FD: Pharmacology and neurochemistry of nefazodone, a novel antidepressant drug. J Clin Psychiatry. 1995;56 Suppl 6:3-11. [Article]
- 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. [Article]
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Antagonist
- General Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin) (PubMed:12970106, PubMed:18703043, PubMed:19057895, PubMed:29398112, PubMed:7895773). 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) (PubMed:19057895, PubMed:29398112). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors (PubMed:18703043, PubMed:29398112). HTR2C is coupled to G(q)/G(11) G alpha proteins and activates phospholipase C-beta, releasing diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) second messengers that modulate the activity of phosphatidylinositol 3-kinase and promote the release of Ca(2+) ions from intracellular stores, respectively (PubMed:18703043, PubMed:29398112). Beta-arrestin family members inhibit signaling via G proteins and mediate activation of alternative signaling pathways (PubMed:29398112). Regulates neuronal activity via the activation of short transient receptor potential calcium channels in the brain, and thereby modulates the activation of pro-opiomelanocortin neurons and the release of CRH that then regulates the release of corticosterone (By similarity). Plays a role in the regulation of appetite and eating behavior, responses to anxiogenic stimuli and stress (By similarity). Plays a role in insulin sensitivity and glucose homeostasis (By similarity)
- Specific Function
- 1-(4-iodo-2,5-dimethoxyphenyl)propan-2-amine binding
- Gene Name
- HTR2C
- Uniprot ID
- P28335
- Uniprot Name
- 5-hydroxytryptamine receptor 2C
- Molecular Weight
- 51804.645 Da
References
- 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. [Article]
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Zhou Y, Zhang Y, Zhao D, Yu X, Shen X, Zhou Y, Wang S, Qiu Y, Chen Y, Zhu F: TTD: Therapeutic Target Database describing target druggability information. Nucleic Acids Res. 2024 Jan 5;52(D1):D1465-D1477. doi: 10.1093/nar/gkad751. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Inhibitor
- General Function
- Serotonin transporter that cotransports serotonin with one Na(+) ion in exchange for one K(+) ion and possibly one proton in an overall electroneutral transport cycle. Transports serotonin across the plasma membrane from the extracellular compartment to the cytosol thus limiting serotonin intercellular signaling (PubMed:10407194, PubMed:12869649, PubMed:21730057, PubMed:27049939, PubMed:27756841, PubMed:34851672). Essential for serotonin homeostasis in the central nervous system. In the developing somatosensory cortex, acts in glutamatergic neurons to control serotonin uptake and its trophic functions accounting for proper spatial organization of cortical neurons and elaboration of sensory circuits. In the mature cortex, acts primarily in brainstem raphe neurons to mediate serotonin uptake from the synaptic cleft back into the pre-synaptic terminal thus terminating serotonin signaling at the synapse (By similarity). Modulates mucosal serotonin levels in the gastrointestinal tract through uptake and clearance of serotonin in enterocytes. Required for enteric neurogenesis and gastrointestinal reflexes (By similarity). Regulates blood serotonin levels by ensuring rapid high affinity uptake of serotonin from plasma to platelets, where it is further stored in dense granules via vesicular monoamine transporters and then released upon stimulation (PubMed:17506858, PubMed:18317590). Mechanistically, the transport cycle starts with an outward-open conformation having Na1(+) and Cl(-) sites occupied. The binding of a second extracellular Na2(+) ion and serotonin substrate leads to structural changes to outward-occluded to inward-occluded to inward-open, where the Na2(+) ion and serotonin are released into the cytosol. Binding of intracellular K(+) ion induces conformational transitions to inward-occluded to outward-open and completes the cycle by releasing K(+) possibly together with a proton bound to Asp-98 into the extracellular compartment. Na1(+) and Cl(-) ions remain bound throughout the transport cycle (PubMed:10407194, PubMed:12869649, PubMed:21730057, PubMed:27049939, PubMed:27756841, PubMed:34851672). Additionally, displays serotonin-induced channel-like conductance for monovalent cations, mainly Na(+) ions. The channel activity is uncoupled from the transport cycle and may contribute to the membrane resting potential or excitability (By similarity)
- Specific Function
- actin filament binding
- Gene Name
- SLC6A4
- Uniprot ID
- P31645
- Uniprot Name
- Sodium-dependent serotonin transporter
- Molecular Weight
- 70324.165 Da
References
- 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. [Article]
- 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. [Article]
- 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. [Article]
- Taylor DP, Carter RB, Eison AS, Mullins UL, Smith HL, Torrente JR, Wright RN, Yocca FD: Pharmacology and neurochemistry of nefazodone, a novel antidepressant drug. J Clin Psychiatry. 1995;56 Suppl 6:3-11. [Article]
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Antagonist
- General Function
- G-protein coupled receptor for 5-hydroxytryptamine (serotonin) (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:37935376, PubMed:37935377, PubMed:8138923, PubMed:8393041). Also functions as a receptor for various drugs and psychoactive substances (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:38552625, PubMed:8138923, PubMed:8393041). Ligand binding causes a conformation change that triggers signaling via guanine nucleotide-binding proteins (G proteins) and modulates the activity of downstream effectors, such as adenylate cyclase (PubMed:22957663, PubMed:3138543, PubMed:33762731, PubMed:8138923, PubMed:8393041). HTR1A is coupled to G(i)/G(o) G alpha proteins and mediates inhibitory neurotransmission: signaling inhibits adenylate cyclase activity and activates a phosphatidylinositol-calcium second messenger system that regulates the release of Ca(2+) ions from intracellular stores (PubMed:33762731, PubMed:35610220). Beta-arrestin family members regulate signaling by mediating both receptor desensitization and resensitization processes (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the regulation of 5-hydroxytryptamine release and in the regulation of dopamine and 5-hydroxytryptamine metabolism (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the regulation of dopamine and 5-hydroxytryptamine levels in the brain, and thereby affects neural activity, mood and behavior (PubMed:18476671, PubMed:20363322, PubMed:20945968). Plays a role in the response to anxiogenic stimuli (PubMed:18476671, PubMed:20363322, PubMed:20945968)
- Specific Function
- G protein-coupled serotonin receptor activity
- Gene Name
- HTR1A
- Uniprot ID
- P08908
- Uniprot Name
- 5-hydroxytryptamine receptor 1A
- Molecular Weight
- 46106.335 Da
References
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Inhibitor
- General Function
- Mediates sodium- and chloride-dependent transport of norepinephrine (also known as noradrenaline) (PubMed:2008212, PubMed:8125921). Can also mediate sodium- and chloride-dependent transport of dopamine (PubMed:11093780, PubMed:8125921)
- Specific Function
- actin binding
- Gene Name
- SLC6A2
- Uniprot ID
- P23975
- Uniprot Name
- Sodium-dependent noradrenaline transporter
- Molecular Weight
- 69331.42 Da
References
- 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. [Article]
- 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. [Article]
- 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. [Article]
- Taylor DP, Carter RB, Eison AS, Mullins UL, Smith HL, Torrente JR, Wright RN, Yocca FD: Pharmacology and neurochemistry of nefazodone, a novel antidepressant drug. J Clin Psychiatry. 1995;56 Suppl 6:3-11. [Article]
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inhibitor
- General Function
- Mediates sodium- and chloride-dependent transport of dopamine (PubMed:10375632, PubMed:11093780, PubMed:1406597, PubMed:15505207, PubMed:19478460, PubMed:8302271). Also mediates sodium- and chloride-dependent transport of norepinephrine (also known as noradrenaline) (By similarity). Regulator of light-dependent retinal hyaloid vessel regression, downstream of OPN5 signaling (By similarity)
- Specific Function
- amine binding
- Gene Name
- SLC6A3
- Uniprot ID
- Q01959
- Uniprot Name
- Sodium-dependent dopamine transporter
- Molecular Weight
- 68494.255 Da
References
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Other/unknown
- General 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
- Specific Function
- alpha1-adrenergic receptor activity
- Gene Name
- ADRA1B
- Uniprot ID
- P35368
- Uniprot Name
- Alpha-1B adrenergic receptor
- Molecular Weight
- 56835.375 Da
References
- Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
- Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [Article]
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General 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
- Specific Function
- alpha-1B adrenergic receptor binding
- Gene Name
- ADRA2A
- Uniprot ID
- P08913
- Uniprot Name
- Alpha-2A adrenergic receptor
- Molecular Weight
- 50646.17 Da
References
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Antagonist
- General 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
- Specific Function
- alpha1-adrenergic receptor activity
- Gene Name
- ADRA1A
- Uniprot ID
- P35348
- Uniprot Name
- Alpha-1A adrenergic receptor
- Molecular Weight
- 51486.005 Da
References
- Taylor DP, Carter RB, Eison AS, Mullins UL, Smith HL, Torrente JR, Wright RN, Yocca FD: Pharmacology and neurochemistry of nefazodone, a novel antidepressant drug. J Clin Psychiatry. 1995;56 Suppl 6:3-11. [Article]
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Antagonist
- General Function
- Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel (PubMed:10219239, PubMed:10753933, PubMed:10790218, PubMed:10837251, PubMed:11997281, PubMed:12063277, PubMed:18559421, PubMed:22314138, PubMed:22359612, PubMed:26363003, PubMed:27916661, PubMed:9230439, PubMed:9351446, PubMed:9765245). Channel properties are modulated by cAMP and subunit assembly (PubMed:10837251). Characterized by unusual gating kinetics by producing relatively small outward currents during membrane depolarization and large inward currents during subsequent repolarization which reflect a rapid inactivation during depolarization and quick recovery from inactivation but slow deactivation (closing) during repolarization (PubMed:10219239, PubMed:10753933, PubMed:10790218, PubMed:10837251, PubMed:11997281, PubMed:12063277, PubMed:18559421, PubMed:22314138, PubMed:22359612, PubMed:26363003, PubMed:27916661, PubMed:9230439, PubMed:9351446, PubMed:9765245). Channel properties are modulated by cAMP and subunit assembly (PubMed:10837251). Forms a stable complex with KCNE1 or KCNE2, and that this heteromultimerization regulates inward rectifier potassium channel activity (PubMed:10219239, PubMed:9230439)
- Specific Function
- delayed rectifier potassium channel activity
- Gene Name
- KCNH2
- Uniprot ID
- Q12809
- Uniprot Name
- Voltage-gated inwardly rectifying potassium channel KCNH2
- Molecular Weight
- 126653.52 Da
References
- 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. [Article]
Enzymes
- Kind
- Protein group
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Inhibitor
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
- Specific Function
- 1,8-cineole 2-exo-monooxygenase activity
Components:
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInhibitor
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of sterols, steroid hormones, retinoids and fatty acids (PubMed:10681376, PubMed:11093772, PubMed:11555828, PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:19965576, PubMed:20702771, PubMed:21490593, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:12865317, PubMed:14559847, PubMed:15373842, PubMed:15764715, PubMed:21490593, PubMed:21576599, PubMed:2732228). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2, as well as D-ring hydroxylated E1 and E2 at the C-16 position (PubMed:11555828, PubMed:12865317, PubMed:14559847). Plays a role in the metabolism of androgens, particularly in oxidative deactivation of testosterone (PubMed:15373842, PubMed:15764715, PubMed:22773874, PubMed:2732228). Metabolizes testosterone to less biologically active 2beta- and 6beta-hydroxytestosterones (PubMed:15373842, PubMed:15764715, PubMed:2732228). Contributes to the formation of hydroxycholesterols (oxysterols), particularly A-ring hydroxylated cholesterol at the C-4beta position, and side chain hydroxylated cholesterol at the C-25 position, likely contributing to cholesterol degradation and bile acid biosynthesis (PubMed:21576599). Catalyzes bisallylic hydroxylation of polyunsaturated fatty acids (PUFA) (PubMed:9435160). Catalyzes the epoxidation of double bonds of PUFA with a preference for the last double bond (PubMed:19965576). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:20702771). Plays a role in the metabolism of retinoids. Displays high catalytic activity for oxidation of all-trans-retinol to all-trans-retinal, a rate-limiting step for the biosynthesis of all-trans-retinoic acid (atRA) (PubMed:10681376). Further metabolizes atRA toward 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Responsible for oxidative metabolism of xenobiotics. Acts as a 2-exo-monooxygenase for plant lipid 1,8-cineole (eucalyptol) (PubMed:11159812). Metabolizes the majority of the administered drugs. Catalyzes sulfoxidation of the anthelmintics albendazole and fenbendazole (PubMed:10759686). Hydroxylates antimalarial drug quinine (PubMed:8968357). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850). Also involved in vitamin D catabolism and calcium homeostasis. Catalyzes the inactivation of the active hormone calcitriol (1-alpha,25-dihydroxyvitamin D(3)) (PubMed:29461981)
- Specific Function
- 1,8-cineole 2-exo-monooxygenase activity
- Gene Name
- CYP3A4
- Uniprot ID
- P08684
- Uniprot Name
- Cytochrome P450 3A4
- Molecular Weight
- 57342.67 Da
References
- 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. [Article]
- DeVane CL, Donovan JL, Liston HL, Markowitz JS, Cheng KT, Risch SC, Willard L: Comparative CYP3A4 inhibitory effects of venlafaxine, fluoxetine, sertraline, and nefazodone in healthy volunteers. J Clin Psychopharmacol. 2004 Feb;24(1):4-10. [Article]
- von Moltke LL, Greenblatt DJ, Granda BW, Grassi JM, Schmider J, Harmatz JS, Shader RI: Nefazodone, meta-chlorophenylpiperazine, and their metabolites in vitro: cytochromes mediating transformation, and P450-3A4 inhibitory actions. Psychopharmacology (Berl). 1999 Jul;145(1):113-22. [Article]
- Klotz U: Interaction potential of lercanidipine, a new vasoselective dihydropyridine calcium antagonist. Arzneimittelforschung. 2002;52(3):155-61. doi: 10.1055/s-0031-1299873. [Article]
- Flockhart Table of Drug Interactions [Link]
- FDA Drug Development and Drug Interactions: Table of Substrates, Inhibitors and Inducers [Link]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInhibitor
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of fatty acids, steroids and retinoids (PubMed:18698000, PubMed:19965576, PubMed:20972997, PubMed:21289075, PubMed:21576599). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (NADPH--hemoprotein reductase) (PubMed:18698000, PubMed:19965576, PubMed:20972997, PubMed:21289075, PubMed:21576599). Catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) (PubMed:19965576, PubMed:20972997). Metabolizes endocannabinoid arachidonoylethanolamide (anandamide) to 20-hydroxyeicosatetraenoic acid ethanolamide (20-HETE-EA) and 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:18698000, PubMed:21289075). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes cholesterol toward 25-hydroxycholesterol, a physiological regulator of cellular cholesterol homeostasis (PubMed:21576599). Catalyzes the oxidative transformations of all-trans retinol to all-trans retinal, a precursor for the active form all-trans-retinoic acid (PubMed:10681376). Also involved in the oxidative metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants
- Specific Function
- anandamide 11,12 epoxidase activity
- Gene Name
- CYP2D6
- Uniprot ID
- P10635
- Uniprot Name
- Cytochrome P450 2D6
- Molecular Weight
- 55768.94 Da
References
- von Moltke LL, Greenblatt DJ, Granda BW, Grassi JM, Schmider J, Harmatz JS, Shader RI: Nefazodone, meta-chlorophenylpiperazine, and their metabolites in vitro: cytochromes mediating transformation, and P450-3A4 inhibitory actions. Psychopharmacology (Berl). 1999 Jul;145(1):113-22. [Article]
- Greene DS, Barbhaiya RH: Clinical pharmacokinetics of nefazodone. Clin Pharmacokinet. 1997 Oct;33(4):260-75. doi: 10.2165/00003088-199733040-00002. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inhibitor
- Curator comments
- Data in the literature are limited regarding this enzyme. One study found that nefazodone was a CYP2B inhibitor in rats.
- General 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 oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
- Specific Function
- arachidonic acid epoxygenase activity
- Gene Name
- CYP2B
- Uniprot ID
- Q14097
- Uniprot Name
- CYP2B protein
- Molecular Weight
- 43147.81 Da
References
- Haduch A, Wojcikowski J, Daniel WA: Effect of selected antidepressant drugs on cytochrome P450 2B (CYP2B) in rat liver. An in vitro and in vivo study. Pharmacol Rep. 2008 Nov-Dec;60(6):957-65. [Article]
Transporters
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- InhibitorInducer
- General Function
- Translocates drugs and phospholipids across the membrane (PubMed:2897240, PubMed:35970996, PubMed:8898203, PubMed:9038218). Catalyzes the flop of phospholipids from the cytoplasmic to the exoplasmic leaflet of the apical membrane. Participates mainly to the flop of phosphatidylcholine, phosphatidylethanolamine, beta-D-glucosylceramides and sphingomyelins (PubMed:8898203). Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells (PubMed:2897240, PubMed:35970996, PubMed:9038218)
- Specific Function
- ABC-type xenobiotic transporter activity
- Gene Name
- ABCB1
- Uniprot ID
- P08183
- Uniprot Name
- ATP-dependent translocase ABCB1
- Molecular Weight
- 141477.255 Da
References
- 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. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inhibitor
- General Function
- Mediates the Na(+)-independent uptake of organic anions (PubMed:10779507, PubMed:15159445, PubMed:17412826). Shows broad substrate specificity, can transport both organic anions such as bile acid taurocholate (cholyltaurine) and conjugated steroids (17-beta-glucuronosyl estradiol, dehydroepiandrosterone sulfate (DHEAS), and estrone 3-sulfate), as well as eicosanoid leukotriene C4, prostaglandin E2 and L-thyroxine (T4) (PubMed:10779507, PubMed:11159893, PubMed:12568656, PubMed:15159445, PubMed:17412826, PubMed:19129463). Hydrogencarbonate/HCO3(-) acts as the probable counteranion that exchanges for organic anions (PubMed:19129463). Shows a pH-sensitive substrate specificity towards sulfated steroids, taurocholate and T4 which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment (PubMed:19129463). Involved in the clearance of bile acids and organic anions from the liver (PubMed:22232210). Can take up bilirubin glucuronides from plasma into the liver, contributing to the detoxification-enhancing liver-blood shuttling loop (PubMed:22232210). Transports coproporphyrin I and III, by-products of heme synthesis, and may be involved in their hepatic disposition (PubMed:26383540). May contribute to regulate the transport of organic compounds in testes across the blood-testis-barrier (Probable). Can transport HMG-CoA reductase inhibitors (also known as statins) such as pitavastatin, a clinically important class of hypolipidemic drugs (PubMed:15159445). May play an important role in plasma and tissue distribution of the structurally diverse chemotherapeutic drugs methotrexate and paclitaxel (PubMed:23243220). May also transport antihypertension agents, such as the angiotensin-converting enzyme (ACE) inhibitor prodrug enalapril, and the highly selective angiotensin II AT1-receptor antagonist valsartan, in the liver (PubMed:16624871, PubMed:16627748)
- Specific Function
- bile acid transmembrane transporter activity
- Gene Name
- SLCO1B3
- Uniprot ID
- Q9NPD5
- Uniprot Name
- Solute carrier organic anion transporter family member 1B3
- Molecular Weight
- 77402.175 Da
References
- Karlgren M, Vildhede A, Norinder U, Wisniewski JR, Kimoto E, Lai Y, Haglund U, Artursson P: Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions. J Med Chem. 2012 May 24;55(10):4740-63. doi: 10.1021/jm300212s. Epub 2012 May 15. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Inhibitor
- General Function
- Mediates the Na(+)-independent transport of steroid sulfate conjugates and other specific organic anions (PubMed:10873595, PubMed:11159893, PubMed:11932330, PubMed:12724351, PubMed:14610227, PubMed:16908597, PubMed:18501590, PubMed:20507927, PubMed:22201122, PubMed:23531488, PubMed:25132355, PubMed:26383540, PubMed:27576593, PubMed:28408210, PubMed:29871943, PubMed:34628357). Responsible for the transport of estrone 3-sulfate (E1S) through the basal membrane of syncytiotrophoblast, highlighting a potential role in the placental absorption of fetal-derived sulfated steroids including the steroid hormone precursor dehydroepiandrosterone sulfate (DHEA-S) (PubMed:11932330, PubMed:12409283). Also facilitates the uptake of sulfated steroids at the basal/sinusoidal membrane of hepatocytes, therefore accounting for the major part of organic anions clearance of liver (PubMed:11159893). Mediates the intestinal uptake of sulfated steroids (PubMed:12724351, PubMed:28408210). Mediates the uptake of the neurosteroids DHEA-S and pregnenolone sulfate (PregS) into the endothelial cells of the blood-brain barrier as the first step to enter the brain (PubMed:16908597, PubMed:25132355). Also plays a role in the reuptake of neuropeptides such as substance P/TAC1 and vasoactive intestinal peptide/VIP released from retinal neurons (PubMed:25132355). May act as a heme transporter that promotes cellular iron availability via heme oxygenase/HMOX2 and independently of TFRC (PubMed:35714613). Also transports heme by-product coproporphyrin III (CPIII), and may be involved in their hepatic disposition (PubMed:26383540). Mediates the uptake of other substrates such as prostaglandins D2 (PGD2), E1 (PGE1) and E2 (PGE2), taurocholate, L-thyroxine, leukotriene C4 and thromboxane B2 (PubMed:10873595, PubMed:14610227, PubMed:19129463, PubMed:29871943, Ref.25). May contribute to regulate the transport of organic compounds in testis across the blood-testis-barrier (Probable). Shows a pH-sensitive substrate specificity which may be ascribed to the protonation state of the binding site and leads to a stimulation of substrate transport in an acidic microenvironment (PubMed:14610227, PubMed:19129463, PubMed:22201122). The exact transport mechanism has not been yet deciphered but most likely involves an anion exchange, coupling the cellular uptake of organic substrate with the efflux of an anionic compound (PubMed:19129463, PubMed:20507927, PubMed:26277985). Hydrogencarbonate/HCO3(-) acts as a probable counteranion that exchanges for organic anions (PubMed:19129463). Cytoplasmic glutamate may also act as counteranion in the placenta (PubMed:26277985). An inwardly directed proton gradient has also been proposed as the driving force of E1S uptake with a (H(+):E1S) stoichiometry of (1:1) (PubMed:20507927)
- Specific Function
- bile acid transmembrane transporter activity
- Gene Name
- SLCO2B1
- Uniprot ID
- O94956
- Uniprot Name
- Solute carrier organic anion transporter family member 2B1
- Molecular Weight
- 76697.93 Da
References
- Karlgren M, Vildhede A, Norinder U, Wisniewski JR, Kimoto E, Lai Y, Haglund U, Artursson P: Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions. J Med Chem. 2012 May 24;55(10):4740-63. doi: 10.1021/jm300212s. Epub 2012 May 15. [Article]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Substrate
- General Function
- Catalyzes the transport of the major hydrophobic bile salts, such as taurine and glycine-conjugated cholic acid across the canalicular membrane of hepatocytes in an ATP-dependent manner, therefore participates in hepatic bile acid homeostasis and consequently to lipid homeostasis through regulation of biliary lipid secretion in a bile salts dependent manner (PubMed:15791618, PubMed:16332456, PubMed:18985798, PubMed:19228692, PubMed:20010382, PubMed:20398791, PubMed:22262466, PubMed:24711118, PubMed:29507376, PubMed:32203132). Transports taurine-conjugated bile salts more rapidly than glycine-conjugated bile salts (PubMed:16332456). Also transports non-bile acid compounds, such as pravastatin and fexofenadine in an ATP-dependent manner and may be involved in their biliary excretion (PubMed:15901796, PubMed:18245269)
- Specific Function
- ABC-type bile acid transporter activity
- Gene Name
- ABCB11
- Uniprot ID
- O95342
- Uniprot Name
- Bile salt export pump
- Molecular Weight
- 146405.83 Da
References
- Pedersen JM, Matsson P, Bergstrom CA, Hoogstraate J, Noren A, LeCluyse EL, Artursson P: Early identification of clinically relevant drug interactions with the human bile salt export pump (BSEP/ABCB11). Toxicol Sci. 2013 Dec;136(2):328-43. doi: 10.1093/toxsci/kft197. Epub 2013 Sep 6. [Article]
Drug created at June 13, 2005 13:24 / Updated at October 21, 2024 12:53