Perampanel
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Identification
- Summary
Perampanel is a non-competitive AMPA glutamate receptor antagonist used to treat partial-onset seizures with or without secondarily generalized seizures, and as adjunctive treatment of primary generalized tonic-clonic seizures in patients with epilepsy.
- Brand Names
- Fycompa
- Generic Name
- Perampanel
- DrugBank Accession Number
- DB08883
- Background
Perampanel is a noncompetitive AMPA glutamate receptor antagonist. It is marketed under the name Fycompa™ and is indicated as an adjunct in patients over 12 years old for the treatment of partial-onset seizures that may or may not occur with generalized seizures. The FDA label includes an important black-boxed warning of serious or life-threatening behavioral and psychiatric reactions in patients taking Fycompa™.
- Type
- Small Molecule
- Groups
- Approved
- Structure
- Weight
- Average: 349.393
Monoisotopic: 349.121512115 - Chemical Formula
- C23H15N3O
- Synonyms
- 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-phenyl-1,2-dihydropyridin-2-one
- Perampanel
- Pérampanel
- Perampanelum
- External IDs
- E-2007
- E2007
- ER-155055-90
Pharmacology
- Indication
Perampanel is indicated for the treatment of partial-onset seizures with or without secondarily generalized seizures in epileptic patients four years of age and older. It is also indicated as an adjunct in the treatment of primary generalized tonic-clonic seizures in epileptic patients aged 12 years and older.2
Reduce drug development failure ratesBuild, train, & validate machine-learning modelswith evidence-based and structured datasets.Build, train, & validate predictive machine-learning models with structured datasets.- Associated Conditions
Indication Type Indication Combined Product Details Approval Level Age Group Patient Characteristics Dose Form Adjunct therapy in treatment of Epilepsy, primary generalized tonic-clonic seizures •••••••••••• •••••••••• ••••••••••• •••••• Treatment of Partial-onset seizures •••••••••••• •••••••••• ••••••••••• •••••• Treatment of Partial-onset seizures •••••••••••• •••••••••• ••••••••••• •••••• - Contraindications & Blackbox Warnings
- Prevent Adverse Drug Events TodayTap into our Clinical API for life-saving information on contraindications & blackbox warnings, population restrictions, harmful risks, & more.Avoid life-threatening adverse drug events with our Clinical API
- Pharmacodynamics
Perampanel is involved in inhibiting neuronal excitation in the central nervous system leading to such effects as decreased pyschomotor performance.
- Mechanism of action
The exact mechanism of action of perampanel in seizures is not yet determined, but it is known that perampanel decreases neuronal excitation by non-competitive ihibition of the AMPA receptor.
Target Actions Organism AGlutamate receptor 2 inhibitorHumans AGlutamate receptor 3 inhibitorHumans AGlutamate receptor 4 inhibitorHumans AGlutamate receptor 1 antagonistHumans - Absorption
After oral adminitration, perampanel is absorbed rapidly and completely.
- Volume of distribution
The volume of distribution of perampanel was not quantified.
- Protein binding
Perampanel is 95-96% plasma protein bound with most binding to the plasma proteins α1-acid glycoprotein and albumin.
- Metabolism
Perampanel is highly metabolized by CYP3A4 and/or CYP3A5 primary oxidation and by sequential glucuronidation.
- Route of elimination
Perampanel is eliminated mostely in the feces (48%) and to a lesser exten in the urine (22%).
- Half-life
Perampanel has a long elmination half-life of about 105 hours.
- Clearance
In healthy patients, perampanel has a clearance of about 12 mL/min.
- 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
The FDA label includes an important warning of serious or life-threatening behavioral and psychiatric adverse reactions including aggression, hostility, irritability, anger, and homicidal thoughts in patients taking perampanel.
- 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 Perampanel may increase the central nervous system depressant (CNS depressant) activities of 1,2-Benzodiazepine. Abametapir The serum concentration of Perampanel can be increased when it is combined with Abametapir. Abatacept The metabolism of Perampanel can be increased when combined with Abatacept. Abemaciclib The metabolism of Abemaciclib can be increased when combined with Perampanel. Abiraterone The serum concentration of Perampanel can be increased when it is combined with Abiraterone. - Food Interactions
- Take with or without food. Food slows the rate of absorption but not the extent.
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 Perampanel hydrate 8LIX22217M 1571982-04-1 PDWMJDKMSASBNE-UHFFFAOYSA-N - Brand Name Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Fycompa Tablet 2 mg/1 Oral Eisai Limited 2012-10-22 Not applicable US Fycompa Tablet 8 mg/1 Oral Catalyst Pharmaceuticals, Inc. 2024-01-02 Not applicable US Fycompa Tablet, film coated 8 mg Oral Eisai Limited 2016-09-07 Not applicable EU Fycompa Tablet 2 mg/1 Oral Catalyst Pharmaceuticals, Inc. 2024-01-02 Not applicable US Fycompa Tablet, film coated 6 mg Oral Eisai Limited 2016-09-07 Not applicable EU - Generic Prescription Products
Name Dosage Strength Route Labeller Marketing Start Marketing End Region Image Taro-perampanel Tablet 4 mg Oral Taro Pharmaceuticals U.S.A., Inc. 2023-12-04 Not applicable Canada Taro-perampanel Tablet 8 mg Oral Taro Pharmaceuticals U.S.A., Inc. 2023-12-04 Not applicable Canada Taro-perampanel Tablet 2 mg Oral Taro Pharmaceuticals U.S.A., Inc. 2023-12-04 Not applicable Canada Taro-perampanel Tablet 12 mg Oral Taro Pharmaceuticals U.S.A., Inc. 2023-12-04 Not applicable Canada Taro-perampanel Tablet 6 mg Oral Taro Pharmaceuticals U.S.A., Inc. 2023-12-04 Not applicable Canada - Mixture Products
Name Ingredients Dosage Route Labeller Marketing Start Marketing End Region Image Fycompa Perampanel (2 mg/1) + Perampanel (4 mg/1) Kit Oral Eisai Limited 2012-10-22 2012-10-15 US Fycompa Perampanel (2 mg/1) + Perampanel (4 mg/1) Kit Oral Eisai Limited 2012-10-22 2012-10-15 US
Categories
- ATC Codes
- N03AX22 — Perampanel
- Drug Categories
- AMPA Receptor Antagonists
- Anticonvulsants
- Central Nervous System Depressants
- Cytochrome P-450 CYP1A2 Substrates
- Cytochrome P-450 CYP2B6 Inducers
- Cytochrome P-450 CYP2B6 Inducers (weak)
- Cytochrome P-450 CYP2B6 Substrates
- Cytochrome P-450 CYP2C8 Inhibitors
- Cytochrome P-450 CYP3A Inducers
- Cytochrome P-450 CYP3A Inhibitors
- Cytochrome P-450 CYP3A Substrates
- Cytochrome P-450 CYP3A4 Inducers
- Cytochrome P-450 CYP3A4 Inducers (strength unknown)
- Cytochrome P-450 CYP3A4 Inhibitors
- Cytochrome P-450 CYP3A4 Substrates
- Cytochrome P-450 CYP3A5 Substrates
- Cytochrome P-450 Enzyme Inducers
- Cytochrome P-450 Enzyme Inhibitors
- Cytochrome P-450 Substrates
- Miscellaneous Anticonvulsants
- Nervous System
- Noncompetitive AMPA Glutamate Receptor Antagonist
- Pyridines
- Receptors, AMPA, antagonists & inhibitors
- UGT1A9 Inhibitors
- UGT2B7 Inhibitors
- Chemical TaxonomyProvided by Classyfire
- Description
- This compound belongs to the class of organic compounds known as bipyridines and oligopyridines. These are organic compounds containing two pyridine rings linked to each other.
- Kingdom
- Organic compounds
- Super Class
- Organoheterocyclic compounds
- Class
- Pyridines and derivatives
- Sub Class
- Bipyridines and oligopyridines
- Direct Parent
- Bipyridines and oligopyridines
- Alternative Parents
- Phenylpyridines / Benzonitriles / Pyridinones / Dihydropyridines / Heteroaromatic compounds / Lactams / Nitriles / Azacyclic compounds / Organopnictogen compounds / Organooxygen compounds show 2 more
- Substituents
- 3-phenylpyridine / Aromatic heteromonocyclic compound / Azacycle / Benzenoid / Benzonitrile / Bipyridine / Carbonitrile / Dihydropyridine / Heteroaromatic compound / Hydrocarbon derivative show 11 more
- Molecular Framework
- Aromatic heteromonocyclic compounds
- External Descriptors
- nitrile, pyridone, bipyridines (CHEBI:71013)
- Affected organisms
- Humans and other mammals
Chemical Identifiers
- UNII
- H821664NPK
- CAS number
- 380917-97-5
- InChI Key
- PRMWGUBFXWROHD-UHFFFAOYSA-N
- InChI
- InChI=1S/C23H15N3O/c24-15-17-8-4-5-11-20(17)21-14-18(22-12-6-7-13-25-22)16-26(23(21)27)19-9-2-1-3-10-19/h1-14,16H
- IUPAC Name
- 2-{6'-oxo-1'-phenyl-1',6'-dihydro-[2,3'-bipyridine]-5'-yl}benzonitrile
- SMILES
- O=C1N(C=C(C=C1C1=CC=CC=C1C#N)C1=NC=CC=C1)C1=CC=CC=C1
References
- Synthesis Reference
Francesco Fontana, "METHODS FOR PREPARING INTERMEDIATES OF PERAMPANEL." U.S. Patent US20130109862, issued May 02, 2013.
US20130109862- General References
- Hanada T, Hashizume Y, Tokuhara N, Takenaka O, Kohmura N, Ogasawara A, Hatakeyama S, Ohgoh M, Ueno M, Nishizawa Y: Perampanel: a novel, orally active, noncompetitive AMPA-receptor antagonist that reduces seizure activity in rodent models of epilepsy. Epilepsia. 2011 Jul;52(7):1331-40. doi: 10.1111/j.1528-1167.2011.03109.x. Epub 2011 Jun 2. [Article]
- FDA Approved Drug Products: FYCOMPA (perampanel) for oral use [Link]
- External Links
- KEGG Drug
- D08964
- PubChem Compound
- 9924495
- PubChem Substance
- 347827808
- ChemSpider
- 8100130
- BindingDB
- 50184410
- 1356552
- ChEBI
- 71013
- ChEMBL
- CHEMBL1214124
- ZINC
- ZINC000030691797
- PDBe Ligand
- 6ZP
- RxList
- RxList Drug Page
- Drugs.com
- Drugs.com Drug Page
- Wikipedia
- Perampanel
- PDB Entries
- 5l1f / 8fww / 8ss6 / 8ss7 / 8ss8 / 8ss9
- FDA label
- Download (611 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 dataNot Available Available Not Available Lennox-Gastaut Syndrome / Primary Generalized Tonic-Clonic or Partial Onset Seizures 1 somestatus stop reason just information to hide Not Available Completed Not Available Epilepsy 2 somestatus stop reason just information to hide Not Available Completed Not Available Epilepsy / Partial-Onset Seizures 2 somestatus stop reason just information to hide Not Available Completed Not Available Generalized Tonic-Clonic Seizures / Idiopathic Generalized Epilepsy / Partial-Onset Seizures 1 somestatus stop reason just information to hide Not Available Completed Not Available Neurological Disorders 1 somestatus stop reason just information to hide
Pharmacoeconomics
- Manufacturers
- Not Available
- Packagers
- Not Available
- Dosage Forms
Form Route Strength Kit Oral Suspension Oral 0.5 mg/1mL Suspension Oral 0.5 MG/ML Suspension Oral 0.5 mg / mL Tablet Oral 10 mg/1 Tablet Oral 10.0 mg Tablet Oral 12 mg/1 Tablet Oral 12.0 mg Tablet Oral 2 mg/1 Tablet Oral 2.0 mg Tablet Oral 4 mg/1 Tablet Oral 4.0 mg Tablet Oral 6 mg/1 Tablet Oral 6.0 mg Tablet Oral 6.000 mg Tablet Oral 8 mg/1 Tablet Oral 8.0 mg Tablet, film coated Oral 10 MG Tablet, film coated Oral 12 MG Tablet, film coated Oral 2 MG Tablet, film coated Oral 4 MG Tablet, film coated Oral 6 MG Tablet, film coated Oral 8 MG Tablet, coated Oral 2 mg Tablet, coated Oral 4 mg Tablet, coated Oral 8 mg Tablet, film coated Oral 10.0 mg Tablet, film coated Oral 12.0 mg Tablet, film coated Oral 2.0 mg Tablet, film coated Oral 4.0 mg Tablet, film coated Oral 6.0 mg Tablet, film coated Oral 8.0 mg Tablet, coated Oral 12 mg Tablet, coated Oral 6 mg Tablet Oral 10 mg Tablet Oral 12 mg Tablet Oral 2 mg Tablet Oral 4 mg Tablet Oral 6 mg Tablet Oral 8 mg - Prices
- Not Available
- Patents
Patent Number Pediatric Extension Approved Expires (estimated) Region US6949571 No 2005-09-27 2021-06-08 US US8772497 No 2014-07-08 2026-05-16 US
Properties
- State
- Solid
- Experimental Properties
Property Value Source water solubility Practically insoluble in water. From FDA label. - Predicted Properties
Property Value Source Water Solubility 0.0056 mg/mL ALOGPS logP 3.54 ALOGPS logP 4.11 Chemaxon logS -4.8 ALOGPS pKa (Strongest Basic) 4.01 Chemaxon Physiological Charge 0 Chemaxon Hydrogen Acceptor Count 3 Chemaxon Hydrogen Donor Count 0 Chemaxon Polar Surface Area 56.99 Å2 Chemaxon Rotatable Bond Count 3 Chemaxon Refractivity 104.74 m3·mol-1 Chemaxon Polarizability 38.03 Å3 Chemaxon Number of Rings 4 Chemaxon Bioavailability 1 Chemaxon Rule of Five Yes Chemaxon Ghose Filter Yes Chemaxon Veber's Rule No Chemaxon MDDR-like Rule No Chemaxon - Predicted ADMET Features
- Not Available
Spectra
- Mass Spec (NIST)
- Not Available
- Spectra
Spectrum Spectrum Type Splash Key Predicted MS/MS Spectrum - 10V, Positive (Annotated) Predicted LC-MS/MS splash10-0udi-0009000000-6d601074dce94ce267cf Predicted MS/MS Spectrum - 10V, Negative (Annotated) Predicted LC-MS/MS splash10-0002-0009000000-232a82d25fe38e53a0d0 Predicted MS/MS Spectrum - 20V, Positive (Annotated) Predicted LC-MS/MS splash10-0udi-0009000000-10d1a7cfdc0738834295 Predicted MS/MS Spectrum - 20V, Negative (Annotated) Predicted LC-MS/MS splash10-0002-0009000000-5071de757f3317982fa5 Predicted MS/MS Spectrum - 40V, Positive (Annotated) Predicted LC-MS/MS splash10-01b9-0096000000-2d61106ae65a7ce48348 Predicted MS/MS Spectrum - 40V, Negative (Annotated) Predicted LC-MS/MS splash10-0002-0291000000-7fded00a4b675deabb9f Predicted 1H NMR Spectrum 1D NMR Not Applicable Predicted 13C NMR Spectrum 1D NMR Not Applicable - Chromatographic Properties
Collision Cross Sections (CCS)
Adduct CCS Value (Å2) Source type Source [M-H]- 201.3230683 predictedDarkChem Lite v0.1.0 [M-H]- 179.59203 predictedDeepCCS 1.0 (2019) [M+H]+ 201.9424683 predictedDarkChem Lite v0.1.0 [M+H]+ 181.95004 predictedDeepCCS 1.0 (2019) [M+Na]+ 200.9852683 predictedDarkChem Lite v0.1.0 [M+Na]+ 188.76106 predictedDeepCCS 1.0 (2019)
Targets
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Yes
- Actions
- Inhibitor
- General Function
- Ionotropic glutamate receptor that functions as a ligand-gated cation channel, gated by L-glutamate and glutamatergic agonists such as alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), quisqualic acid, and kainic acid (PubMed:20614889, PubMed:31300657, PubMed:8003671). L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system and plays an important role in fast excitatory synaptic transmission (PubMed:14687553). Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse upon entry of monovalent and divalent cations such as sodium and calcium (PubMed:20614889, PubMed:8003671). The receptor then desensitizes rapidly and enters in a transient inactive state, characterized by the presence of bound agonist (By similarity). In the presence of CACNG4 or CACNG7 or CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of L-glutamate (By similarity). Through complex formation with NSG1, GRIP1 and STX12 controls the intracellular fate of AMPAR and the endosomal sorting of the GRIA2 subunit toward recycling and membrane targeting (By similarity)
- Specific Function
- AMPA glutamate receptor activity
- Gene Name
- GRIA2
- Uniprot ID
- P42262
- Uniprot Name
- Glutamate receptor 2
- Molecular Weight
- 98820.32 Da
References
- 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
- Ionotropic glutamate receptor that functions as a ligand-gated cation channel, gated by L-glutamate and glutamatergic agonists such as alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), quisqualic acid, and kainic acid (By similarity). L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system and plays an important role in fast excitatory synaptic transmission by inducing long-term potentiation (By similarity). Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse upon entry of calcium (PubMed:17989220). The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist (PubMed:17989220). In the presence of CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of glutamate (PubMed:21172611)
- Specific Function
- AMPA glutamate receptor activity
- Gene Name
- GRIA3
- Uniprot ID
- P42263
- Uniprot Name
- Glutamate receptor 3
- Molecular Weight
- 101155.975 Da
References
- 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
- Ionotropic glutamate receptor that functions as a ligand-gated cation channel, gated by L-glutamate and glutamatergic agonists such as alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), quisqualic acid, and kainic acid (By similarity). L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system and plays an important role in fast excitatory synaptic transmission (By similarity). Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse upon entry of monovalent and divalent cations such as sodium and calcium. The receptor then desensitizes rapidly and enters a transient inactive state, characterized by the presence of bound agonist (By similarity). In the presence of CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of L-glutamate (PubMed:21172611)
- Specific Function
- AMPA glutamate receptor activity
- Gene Name
- GRIA4
- Uniprot ID
- P48058
- Uniprot Name
- Glutamate receptor 4
- Molecular Weight
- 100870.085 Da
References
- 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
- Antagonist
- General Function
- Ionotropic glutamate receptor that functions as a ligand-gated cation channel, gated by L-glutamate and glutamatergic agonists such as alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), quisqualic acid, and kainic acid (PubMed:1311100, PubMed:20805473, PubMed:21172611, PubMed:28628100, PubMed:35675825). L-glutamate acts as an excitatory neurotransmitter at many synapses in the central nervous system. Binding of the excitatory neurotransmitter L-glutamate induces a conformation change, leading to the opening of the cation channel, and thereby converts the chemical signal to an electrical impulse upon entry of monovalent and divalent cations such as sodium and calcium. The receptor then desensitizes rapidly and enters in a transient inactive state, characterized by the presence of bound agonist (By similarity). In the presence of CACNG2 or CACNG4 or CACNG7 or CACNG8, shows resensitization which is characterized by a delayed accumulation of current flux upon continued application of L-glutamate (PubMed:21172611). Resensitization is blocked by CNIH2 through interaction with CACNG8 in the CACNG8-containing AMPA receptors complex (PubMed:21172611). Calcium (Ca(2+)) permeability depends on subunits composition and, heteromeric channels containing edited GRIA2 subunit are calcium-impermeable. Also permeable to other divalents cations such as strontium(2+) and magnesium(2+) and monovalent cations such as potassium(1+) and lithium(1+) (By similarity)
- Specific Function
- adenylate cyclase binding
- Gene Name
- GRIA1
- Uniprot ID
- P42261
- Uniprot Name
- Glutamate receptor 1
- Molecular Weight
- 101505.245 Da
References
- Hanada T, Hashizume Y, Tokuhara N, Takenaka O, Kohmura N, Ogasawara A, Hatakeyama S, Ohgoh M, Ueno M, Nishizawa Y: Perampanel: a novel, orally active, noncompetitive AMPA-receptor antagonist that reduces seizure activity in rodent models of epilepsy. Epilepsia. 2011 Jul;52(7):1331-40. doi: 10.1111/j.1528-1167.2011.03109.x. Epub 2011 Jun 2. [Article]
Enzymes
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- SubstrateInducer
- 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
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- No
- Actions
- Substrate
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of steroid hormones and vitamins (PubMed:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). 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:10681376, PubMed:11093772, PubMed:12865317, PubMed:2732228). Exhibits high catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes 6beta-hydroxylation of the steroid hormones testosterone, progesterone, and androstenedione (PubMed:2732228). Catalyzes the oxidative conversion 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 all trans-retinoic acid (atRA) to 4-hydroxyretinoate and may play a role in hepatic atRA clearance (PubMed:11093772). Also involved in the oxidative metabolism of xenobiotics, including calcium channel blocking drug nifedipine and immunosuppressive drug cyclosporine (PubMed:2732228)
- Specific Function
- aromatase activity
- Gene Name
- CYP3A5
- Uniprot ID
- P20815
- Uniprot Name
- Cytochrome P450 3A5
- Molecular Weight
- 57108.065 Da
References
- Fycompa (Perampanel) FDA Label [Link]
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- Substrate
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of various endogenous substrates, including fatty acids, steroid hormones and vitamins (PubMed:10681376, PubMed:11555828, PubMed:12865317, PubMed:19965576, PubMed:9435160). 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:10681376, PubMed:11555828, PubMed:12865317, PubMed:19965576, PubMed:9435160). Catalyzes the hydroxylation of carbon-hydrogen bonds (PubMed:11555828, PubMed:12865317). Exhibits high catalytic activity for the formation of hydroxyestrogens from estrone (E1) and 17beta-estradiol (E2), namely 2-hydroxy E1 and E2 (PubMed:11555828, PubMed:12865317). Metabolizes cholesterol toward 25-hydroxycholesterol, a physiological regulator of cellular cholesterol homeostasis (PubMed:21576599). May act as a major enzyme for all-trans retinoic acid biosynthesis in the liver. Catalyzes two successive oxidative transformation of all-trans retinol to all-trans retinal and then to the active form all-trans retinoic acid (PubMed:10681376). Primarily catalyzes stereoselective epoxidation of the last double bond of polyunsaturated fatty acids (PUFA), displaying a strong preference for the (R,S) stereoisomer (PubMed:19965576). Catalyzes bisallylic hydroxylation and omega-1 hydroxylation of PUFA (PubMed:9435160). May also participate in eicosanoids metabolism by converting hydroperoxide species into oxo metabolites (lipoxygenase-like reaction, NADPH-independent) (PubMed:21068195). Plays a role in the oxidative metabolism of xenobiotics. Catalyzes the N-hydroxylation of heterocyclic amines and the O-deethylation of phenacetin (PubMed:14725854). Metabolizes caffeine via N3-demethylation (Probable)
- Specific Function
- aromatase activity
- Gene Name
- CYP1A2
- Uniprot ID
- P05177
- Uniprot Name
- Cytochrome P450 1A2
- Molecular Weight
- 58406.915 Da
References
- Kind
- Protein
- Organism
- Humans
- Pharmacological action
- Unknown
- Actions
- SubstrateInducer
- General Function
- A cytochrome P450 monooxygenase involved in the metabolism of endocannabinoids and steroids (PubMed:12865317, PubMed:21289075). 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 epoxidation of double bonds of arachidonoylethanolamide (anandamide) to 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acid ethanolamides (EpETrE-EAs), potentially modulating endocannabinoid system signaling (PubMed:21289075). Hydroxylates steroid hormones, including testosterone at C-16 and estrogens at C-2 (PubMed:12865317, PubMed:21289075). Plays a role in the oxidative metabolism of xenobiotics, including plant lipids and drugs (PubMed:11695850, PubMed:22909231). Acts as a 1,4-cineole 2-exo-monooxygenase (PubMed:11695850)
- Specific Function
- anandamide 11,12 epoxidase activity
- Gene Name
- CYP2B6
- Uniprot ID
- P20813
- Uniprot Name
- Cytochrome P450 2B6
- Molecular Weight
- 56277.81 Da
References
- Fycompa (Perampanel) FDA Label [Link]
Drug created at May 22, 2013 01:44 / Updated at October 29, 2024 14:47