Acenocoumarol

Identification

Summary

Acenocoumarol is an anticoagulant drug used in the prevention of thromboembolic diseases in infarction and transient ischemic attacks, as well as management of deep vein thrombosis and myocardial infarction.

Generic Name
Acenocoumarol
DrugBank Accession Number
DB01418
Background

Acenocoumarol is a coumarin derivative used as an anticoagulant. Coumarin derivatives inhibit the reduction of vitamin K by vitamin K reductase. This prevents carboxylation of vitamin K-dependent clotting factors, II, VII, IX and X, and interferes with coagulation.6 Hematocrit, hemoglobin, international normalized ratio and liver panel should be monitored. Patients on acenocoumarol are prohibited from giving blood.

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 353.3255
Monoisotopic: 353.089937217
Chemical Formula
C19H15NO6
Synonyms
  • 3-(alpha-(4'-Nitrophenyl)-beta-acetylethyl)-4-hydroxycoumarin
  • 3-(alpha-(p-Nitrophenol)-beta-acetylethyl)-4-hydroxycoumarin
  • 3-(alpha-Acetonyl-4-nitrobenzyl)-4-hydroxycoumarin
  • 3-(alpha-Acetonyl-p-nitrobenzyl)-4-hydroxycoumarin
  • 3-(alpha-p-Nitrophenyl-beta-acetylethyl)-4-hydroxycoumarin
  • 4-Hydroxy-3-(1-(4-nitrophenyl)-3-oxobutyl)-2H-1-benzopyran-2-one
  • 4-Hydroxy-3-[1-(4-nitrophenyl)-3-oxobutyl]-2H-chromen-2-one
  • Acenocoumarin
  • Acénocoumarol
  • Acenocoumarol
  • Acenocoumarolum
  • Acenocumarol
  • Acenocumarolo
  • Acenokumarin
  • Nicoumalone
  • Nicumalon
  • Nitrophenylacetylethyl-4-hydroxycoumarine
  • Nitrovarfarian
  • Nitrowarfarin

Pharmacology

Indication

For the treatment and prevention of thromboembolic diseases. More specifically, it is indicated for the prevention of cerebral embolism, deep vein thrombosis, pulmonary embolism, thromboembolism in infarction and transient ischemic attacks. It is used for the treatment of deep vein thrombosis and myocardial infarction.

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Adjunct therapy in treatment ofCoronary occlusion••••••••••••
Treatment ofEmbolism••••••••••••
Prophylaxis ofPulmonary embolism••••••••••••
Treatment ofPulmonary embolism••••••••••••
Adjunct therapy in treatment ofTransient ischemic attack••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Acenocoumarol inhibits the reduction of vitamin K by vitamin K reductase. This prevents carboxylation of certain glutamic acid residues near the N-terminals of clotting factors II, VII, IX and X, the vitamin K-dependent clotting factors. Glutamic acid carboxylation is important for the interaction between these clotting factors and calcium. Without this interaction, clotting cannot occur. Both the extrinsic (via factors VII, X and II) and intrinsic (via factors IX, X and II) are affected by acenocoumarol.

Mechanism of action

Acenocoumarol inhibits vitamin K reductase, resulting in depletion of the reduced form of vitamin K (vitamin KH2). As vitamin K is a cofactor for the carboxylation of glutamate residues on the N-terminal regions of vitamin K-dependent clotting factors, this limits the gamma-carboxylation and subsequent activation of the vitamin K-dependent coagulant proteins. The synthesis of vitamin K-dependent coagulation factors II, VII, IX, and X and anticoagulant proteins C and S is inhibited resulting in decreased prothrombin levels and a decrease in the amount of thrombin generated and bound to fibrin. This reduces the thrombogenicity of clots.

TargetActionsOrganism
AVitamin K epoxide reductase complex subunit 1
inhibitor
Humans
Absorption

Rapidly absorbed orally with greater than 60% bioavailability. Peak plasma levels are attained 1 to 3 hours following oral administration.

Volume of distribution

The volume of distribution at steady-state appeared to be significantly dose dependent: 78 ml/kg for doses < or = 20 microg/kg and 88 ml/kg for doses > 20 microg/kg respectively

Protein binding

98.7% protein bound, mainly to albumin

Metabolism

Extensively metabolized in the liver via oxidation forming two hydroxy metabolites and keto reduction producing two alcohol metabolites. Reduction of the nitro group produces an amino metabolite which is further transformed to an acetoamido metabolite. Metabolites do not appear to be pharmacologically active.

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Route of elimination

Mostly via the kidney as metabolites

Half-life

8 to 11 hours.

Clearance

Not Available

Adverse Effects
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Toxicity

The onset and severity of the symptoms are dependent on the individual's sensitivity to oral anticoagulants, the severity of the overdosage, and the duration of treatment. Bleeding is the major sign of toxicity with oral anticoagulant drugs. The most frequent symptoms observed are: cutaneous bleeding (80%), haematuria (with renal colic) (52%), haematomas, gastrointestinal bleeding, haematemesis, uterine bleeding, epistaxis, gingival bleeding and bleeding into the joints. Further symptoms include tachycardia, hypotension, peripheral circulatory disorders due to loss of blood, nausea, vomiting, diarrhoea and abdominal pains.

Pathways
PathwayCategory
Acenocoumarol Action PathwayDrug action
Pharmacogenomic Effects/ADRs
Interacting Gene/EnzymeAllele nameGenotype(s)Defining Change(s)Type(s)DescriptionDetails
Cytochrome P450 2C9CYP2C9*2(T;T) / (C;T)T AlleleEffect Directly StudiedThe presence of this polymorphism in CYP2C9 is associated with reduction in acenocoumarol metabolism.Details
Cytochrome P450 2C9CYP2C9*3(C;C) / (A;C)C AlleleEffect Directly StudiedThe presence of this polymorphism in CYP2C9 is associated with reduction in acenocoumarol metabolism.Details
Vitamin K epoxide reductase complex subunit 1---(A;A) / (A;G)G > AADR Directly StudiedThe presence of this single nucleotide polymorphism in VKORC1 is associated with reduction in acenocoumarol metabolism and increased risk of drug-related hemorrhage.Details
Cytochrome P450 2C9CYP2C9*2(T;T) / (C;T)T AlleleEffect Directly StudiedPatients with this polymorphism in CYP2C9 may be at a higher risk of developing drug-related hemorrhage or thrombosis when treated with acenocoumarol.Details
Cytochrome P450 2C9CYP2C9*3(C;C) / (A;C)C AlleleEffect Directly StudiedPatients with this polymorphism in CYP2C9 may be at a higher risk of developing drug-related hemorrhage or thrombosis when treated with acenocoumarol.Details
Cytochrome P450 2C9CYP2C9*6Not Available818delAEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*15Not Available485C>AEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*25Not Available353_362delAGAAATGGAAEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*35Not Available374G>T / 430C>TEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*4Not Available1076T>CEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*5Not Available1080C>GEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*8Not Available449G>AEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*11Not Available1003C>TEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*12Not Available1465C>TEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*13Not Available269T>CEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*14Not Available374G>AEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*16Not Available895A>GEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*18Not Available1075A>C / 1190A>C  … show all Effect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*26Not Available389C>GEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*28Not Available641A>TEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*30Not Available1429G>AEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*33Not Available395G>AEffect InferredPoor drug metabolizer, associated with lower dose requirement.Details

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.
DrugInteraction
AbametapirThe serum concentration of Acenocoumarol can be increased when it is combined with Abametapir.
AbataceptThe metabolism of Acenocoumarol can be increased when combined with Abatacept.
AbciximabThe risk or severity of bleeding can be increased when Abciximab is combined with Acenocoumarol.
AbirateroneThe serum concentration of Acenocoumarol can be increased when it is combined with Abiraterone.
AbrocitinibThe metabolism of Abrocitinib can be decreased when combined with Acenocoumarol.
Food Interactions
  • Avoid herbs and supplements with anticoagulant/antiplatelet activity. Examples include garlic, ginger, bilberry, danshen, piracetam, and ginkgo biloba.
  • Ensure consistent Vitamin K intake. Changes in vitamin K intake may impact coagulation. Foods containing vitamin K include spinach, kale, and swiss chard.
  • Exercise caution with St. John's Wort.

Products

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International/Other Brands
Ascumar (Star) / Mini-sintrom
Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
SintromTablet1 mgOralPaladin Labs Inc.1962-12-312021-09-02Canada flag
SintromTablet4 mgOralPaladin Labs Inc.1957-12-312021-09-02Canada flag
Truemed Group LLCTablet4 mg/1OralTruemed Group LLC2022-09-17Not applicableUS flag

Categories

ATC Codes
B01AA07 — Acenocoumarol
Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as 4-hydroxycoumarins. These are coumarins that contain one or more hydroxyl groups attached to C4-position the coumarin skeleton.
Kingdom
Organic compounds
Super Class
Phenylpropanoids and polyketides
Class
Coumarins and derivatives
Sub Class
Hydroxycoumarins
Direct Parent
4-hydroxycoumarins
Alternative Parents
1-benzopyrans / Nitrobenzenes / Nitroaromatic compounds / Pyranones and derivatives / Vinylogous acids / Heteroaromatic compounds / Lactones / Ketones / Propargyl-type 1,3-dipolar organic compounds / Oxacyclic compounds
show 5 more
Substituents
1-benzopyran / 4-hydroxycoumarin / Allyl-type 1,3-dipolar organic compound / Aromatic heteropolycyclic compound / Benzenoid / Benzopyran / C-nitro compound / Carbonyl group / Heteroaromatic compound / Hydrocarbon derivative
show 20 more
Molecular Framework
Aromatic heteropolycyclic compounds
External Descriptors
C-nitro compound, methyl ketone, hydroxycoumarin (CHEBI:53766)
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
I6WP63U32H
CAS number
152-72-7
InChI Key
VABCILAOYCMVPS-UHFFFAOYSA-N
InChI
InChI=1S/C19H15NO6/c1-11(21)10-15(12-6-8-13(9-7-12)20(24)25)17-18(22)14-4-2-3-5-16(14)26-19(17)23/h2-9,15,22H,10H2,1H3
IUPAC Name
4-hydroxy-3-[1-(4-nitrophenyl)-3-oxobutyl]-2H-chromen-2-one
SMILES
CC(=O)CC(C1=CC=C(C=C1)[N+]([O-])=O)C1=C(O)C2=CC=CC=C2OC1=O

References

Synthesis Reference

Stoll, W. and Litvan, F.; U.S. Patent 2,648,682; August 11,1953; assigned to J.R. Geigy A.G., Switzerland.

General References
  1. Cesar JM, Garcia-Avello A, Navarro JL, Herraez MV: Aging and oral anticoagulant therapy using acenocoumarol. Blood Coagul Fibrinolysis. 2004 Oct;15(8):673-6. [Article]
  2. Lengyel M: [Warfarin or acenocoumarol is better in the anticoagulant treatment of chronic atrial fibrillation?]. Orv Hetil. 2004 Dec 26;145(52):2619-21. [Article]
  3. Ufer M: Comparative pharmacokinetics of vitamin K antagonists: warfarin, phenprocoumon and acenocoumarol. Clin Pharmacokinet. 2005;44(12):1227-46. [Article]
  4. Montes R, Ruiz de Gaona E, Martinez-Gonzalez MA, Alberca I, Hermida J: The c.-1639G > A polymorphism of the VKORC1 gene is a major determinant of the response to acenocoumarol in anticoagulated patients. Br J Haematol. 2006 Apr;133(2):183-7. [Article]
  5. Girard P, Nony P, Erhardtsen E, Delair S, Ffrench P, Dechavanne M, Boissel JP: Population pharmacokinetics of recombinant factor VIIa in volunteers anticoagulated with acenocoumarol. Thromb Haemost. 1998 Jul;80(1):109-13. [Article]
  6. Danziger J: Vitamin K-dependent proteins, warfarin, and vascular calcification. Clin J Am Soc Nephrol. 2008 Sep;3(5):1504-10. doi: 10.2215/CJN.00770208. Epub 2008 May 21. [Article]
Human Metabolome Database
HMDB0015487
KEGG Drug
D07064
PubChem Compound
54676537
PubChem Substance
46507631
ChemSpider
10443441
RxNav
154
ChEBI
53766
ChEMBL
CHEMBL397420
Therapeutic Targets Database
DAP000772
PharmGKB
PA452632
Wikipedia
Acenocoumarol
MSDS
Download (126 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
PhaseStatusPurposeConditionsCountStart DateWhy Stopped100+ additional columns
Not AvailableCompletedNot AvailableAtrial Fibrillation2somestatusstop reasonjust information to hide
Not AvailableCompletedNot AvailableAtrial Fibrillation or Flutter1somestatusstop reasonjust information to hide
Not AvailableCompletedNot AvailablePulmonary Arterial Hypertension (PAH)1somestatusstop reasonjust information to hide
Not AvailableCompletedNot AvailableUnsuspected Pulmonary Embolism1somestatusstop reasonjust information to hide
Not AvailableCompletedTreatmentHealthy Volunteers (HV)1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
Not Available
Packagers
Not Available
Dosage Forms
FormRouteStrength
TabletOral4.000 mg
TabletOral1 mg
TabletOral4 mg
TabletOral4 mg/1
Prices
Unit descriptionCostUnit
Sintrom 4 mg Tablet1.6USD tablet
Sintrom 1 mg Tablet0.51USD tablet
DrugBank does not sell nor buy drugs. Pricing information is supplied for informational purposes only.
Patents
Not Available

Properties

State
Solid
Experimental Properties
PropertyValueSource
melting point (°C)196-199Merck Index 23
water solubilitypractically insolubleMSDS
logP1.98SANGSTER (1994)
Predicted Properties
PropertyValueSource
Water Solubility0.0106 mg/mLALOGPS
logP2.53ALOGPS
logP2.68Chemaxon
logS-4.5ALOGPS
pKa (Strongest Acidic)5.09Chemaxon
pKa (Strongest Basic)-6.9Chemaxon
Physiological Charge-1Chemaxon
Hydrogen Acceptor Count5Chemaxon
Hydrogen Donor Count1Chemaxon
Polar Surface Area106.74 Å2Chemaxon
Rotatable Bond Count5Chemaxon
Refractivity93.18 m3·mol-1Chemaxon
Polarizability34.44 Å3Chemaxon
Number of Rings3Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
Predicted ADMET Features
PropertyValueProbability
Human Intestinal Absorption+0.7518
Blood Brain Barrier+0.5765
Caco-2 permeable+0.5
P-glycoprotein substrateNon-substrate0.6031
P-glycoprotein inhibitor INon-inhibitor0.7078
P-glycoprotein inhibitor IINon-inhibitor0.843
Renal organic cation transporterNon-inhibitor0.8944
CYP450 2C9 substrateNon-substrate0.6256
CYP450 2D6 substrateNon-substrate0.8936
CYP450 3A4 substrateSubstrate0.6267
CYP450 1A2 substrateNon-inhibitor0.9045
CYP450 2C9 inhibitorInhibitor0.8949
CYP450 2D6 inhibitorNon-inhibitor0.9231
CYP450 2C19 inhibitorNon-inhibitor0.9026
CYP450 3A4 inhibitorNon-inhibitor0.831
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.7492
Ames testAMES toxic0.6954
CarcinogenicityNon-carcinogens0.7015
BiodegradationNot ready biodegradable0.9403
Rat acute toxicity2.7869 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.6326
hERG inhibition (predictor II)Non-inhibitor0.9347
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397)

Spectra

Mass Spec (NIST)
Not Available
Spectra
SpectrumSpectrum TypeSplash Key
Predicted GC-MS Spectrum - GC-MSPredicted GC-MSsplash10-0005-4394000000-cee5104d5911648240f0
Predicted 1H NMR Spectrum1D NMRNot Applicable
Predicted 13C NMR Spectrum1D NMRNot Applicable
Chromatographic Properties
Collision Cross Sections (CCS)
AdductCCS Value (Å2)Source typeSource
[M-H]-199.1147629
predicted
DarkChem Lite v0.1.0
[M-H]-180.42104
predicted
DeepCCS 1.0 (2019)
[M+H]+198.6442629
predicted
DarkChem Lite v0.1.0
[M+H]+182.77904
predicted
DeepCCS 1.0 (2019)
[M+Na]+199.4330629
predicted
DarkChem Lite v0.1.0
[M+Na]+189.85472
predicted
DeepCCS 1.0 (2019)

Targets

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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Involved in vitamin K metabolism. Catalytic subunit of the vitamin K epoxide reductase (VKOR) complex which reduces inactive vitamin K 2,3-epoxide to active vitamin K. Vitamin K is required for the gamma-carboxylation of various proteins, including clotting factors, and is required for normal blood coagulation, but also for normal bone development
Specific Function
quinone binding
Gene Name
VKORC1
Uniprot ID
Q9BQB6
Uniprot Name
Vitamin K epoxide reductase complex subunit 1
Molecular Weight
18234.3 Da
References
  1. Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
  2. Bodin L, Verstuyft C, Tregouet DA, Robert A, Dubert L, Funck-Brentano C, Jaillon P, Beaune P, Laurent-Puig P, Becquemont L, Loriot MA: Cytochrome P450 2C9 (CYP2C9) and vitamin K epoxide reductase (VKORC1) genotypes as determinants of acenocoumarol sensitivity. Blood. 2005 Jul 1;106(1):135-40. Epub 2005 Mar 24. [Article]
  3. Gonzalez-Conejero R, Corral J, Roldan V, Ferrer F, Sanchez-Serrano I, Sanchez-Blanco JJ, Marin F, Vicente V: The genetic interaction between VKORC1 c1173t and calumenin a29809g modulates the anticoagulant response of acenocoumarol. J Thromb Haemost. 2007 Aug;5(8):1701-6. Epub 2007 May 21. [Article]
  4. Montes R, Ruiz de Gaona E, Martinez-Gonzalez MA, Alberca I, Hermida J: The c.-1639G > A polymorphism of the VKORC1 gene is a major determinant of the response to acenocoumarol in anticoagulated patients. Br J Haematol. 2006 Apr;133(2):183-7. [Article]
  5. Rettie AE, Farin FM, Beri NG, Srinouanprachanh SL, Rieder MJ, Thijssen HH: A case study of acenocoumarol sensitivity and genotype-phenotype discordancy explained by combinations of polymorphisms in VKORC1 and CYP2C9. Br J Clin Pharmacol. 2006 Nov;62(5):617-20. Epub 2006 Jul 21. [Article]
  6. Schalekamp T, Brasse BP, Roijers JF, Chahid Y, van Geest-Daalderop JH, de Vries-Goldschmeding H, van Wijk EM, Egberts AC, de Boer A: VKORC1 and CYP2C9 genotypes and acenocoumarol anticoagulation status: interaction between both genotypes affects overanticoagulation. Clin Pharmacol Ther. 2006 Jul;80(1):13-22. [Article]
  7. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
  8. 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]

Enzymes

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 and steroids (PubMed:12865317, PubMed:15766564, PubMed:19965576, PubMed:21576599, PubMed:7574697, PubMed:9435160, PubMed:9866708). 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:12865317, PubMed:15766564, PubMed:19965576, PubMed:21576599, PubMed:7574697, PubMed:9435160, PubMed:9866708). Catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) (PubMed:15766564, PubMed:19965576, PubMed:7574697, PubMed:9866708). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes cholesterol toward 25-hydroxycholesterol, a physiological regulator of cellular cholesterol homeostasis (PubMed:21576599). Exhibits low catalytic activity for the formation of catechol estrogens from 17beta-estradiol (E2) and estrone (E1), namely 2-hydroxy E1 and E2 (PubMed:12865317). Catalyzes bisallylic hydroxylation and hydroxylation with double-bond migration of polyunsaturated fatty acids (PUFA) (PubMed:9435160, PubMed:9866708). Also metabolizes plant monoterpenes such as limonene. Oxygenates (R)- and (S)-limonene to produce carveol and perillyl alcohol (PubMed:11950794). Contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan (PubMed:25994031)
Specific Function
(R)-limonene 6-monooxygenase activity
Gene Name
CYP2C9
Uniprot ID
P11712
Uniprot Name
Cytochrome P450 2C9
Molecular Weight
55627.365 Da
References
  1. Saraeva RB, Paskaleva ID, Doncheva E, Eap CB, Ganev VS: Pharmacogenetics of acenocoumarol: CYP2C9, CYP2C19, CYP1A2, CYP3A4, CYP3A5 and ABCB1 gene polymorphisms and dose requirements. J Clin Pharm Ther. 2007 Dec;32(6):641-9. [Article]
  2. Thijssen HH, Ritzen B: Acenocoumarol pharmacokinetics in relation to cytochrome P450 2C9 genotype. Clin Pharmacol Ther. 2003 Jul;74(1):61-8. doi: 10.1016/S0009-9236(03)00088-2. [Article]
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
  1. Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
  2. Saraeva RB, Paskaleva ID, Doncheva E, Eap CB, Ganev VS: Pharmacogenetics of acenocoumarol: CYP2C9, CYP2C19, CYP1A2, CYP3A4, CYP3A5 and ABCB1 gene polymorphisms and dose requirements. J Clin Pharm Ther. 2007 Dec;32(6):641-9. [Article]
  3. Acenocoumarol monograph [File]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
A cytochrome P450 monooxygenase involved in the metabolism of polyunsaturated fatty acids (PUFA) (PubMed:18577768, PubMed:19965576, PubMed:20972997). 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:18577768, PubMed:19965576, PubMed:20972997). Catalyzes the hydroxylation of carbon-hydrogen bonds. Hydroxylates PUFA specifically at the omega-1 position (PubMed:18577768). Catalyzes the epoxidation of double bonds of PUFA (PubMed:19965576, PubMed:20972997). Also metabolizes plant monoterpenes such as limonene. Oxygenates (R)- and (S)-limonene to produce carveol and perillyl alcohol (PubMed:11950794). Responsible for the metabolism of a number of therapeutic agents such as the anticonvulsant drug S-mephenytoin, omeprazole, proguanil, certain barbiturates, diazepam, propranolol, citalopram and imipramine. Hydroxylates fenbendazole at the 4' position (PubMed:23959307)
Specific Function
(R)-limonene 6-monooxygenase activity
Gene Name
CYP2C19
Uniprot ID
P33261
Uniprot Name
Cytochrome P450 2C19
Molecular Weight
55944.565 Da
References
  1. Zhou SF, Zhou ZW, Yang LP, Cai JP: Substrates, inducers, inhibitors and structure-activity relationships of human Cytochrome P450 2C9 and implications in drug development. Curr Med Chem. 2009;16(27):3480-675. Epub 2009 Sep 1. [Article]
  2. Saraeva RB, Paskaleva ID, Doncheva E, Eap CB, Ganev VS: Pharmacogenetics of acenocoumarol: CYP2C9, CYP2C19, CYP1A2, CYP3A4, CYP3A5 and ABCB1 gene polymorphisms and dose requirements. J Clin Pharm Ther. 2007 Dec;32(6):641-9. [Article]
  3. Acenocoumarol monograph [File]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
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
  1. Ufer M: Comparative pharmacokinetics of vitamin K antagonists: warfarin, phenprocoumon and acenocoumarol. Clin Pharmacokinet. 2005;44(12):1227-46. [Article]
  2. Morales-Molina JA, Arrebola MA, Robles PA, Mangana JC: Possible interaction between topical terbinafine and acenocoumarol. Ann Pharmacother. 2009 Nov;43(11):1911-2. doi: 10.1345/aph.1M299. Epub 2009 Oct 20. [Article]

Carriers

Kind
Protein
Organism
Humans
Pharmacological action
No
General Function
Binds water, Ca(2+), Na(+), K(+), fatty acids, hormones, bilirubin and drugs (Probable). Its main function is the regulation of the colloidal osmotic pressure of blood (Probable). Major zinc transporter in plasma, typically binds about 80% of all plasma zinc (PubMed:19021548). Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity). Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity). Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli (PubMed:6234017). Does not prevent iron uptake by the bacterial siderophore aerobactin (PubMed:6234017)
Specific Function
antioxidant activity
Gene Name
ALB
Uniprot ID
P02768
Uniprot Name
Albumin
Molecular Weight
69365.94 Da
References
  1. Fitos I, Visy J, Simonyi M, Hermansson J: Stereoselective distribution of acenocoumarol enantiomers in human plasma: chiral chromatographic analysis of the ultrafiltrates. Chirality. 1993;5(5):346-9. [Article]
  2. Fitos I, Visy J, Magyar A, Kajtar J, Simonyi M: Inverse stereoselectivity in the binding of acenocoumarol to human serum albumin and to alpha 1-acid glycoprotein. Biochem Pharmacol. 1989 Jul 15;38(14):2259-62. [Article]
  3. Otagiri M, Fleitman JS, Perrin JH: Investigations into the binding of phenprocoumon to albumin using fluorescence spectroscopy. J Pharm Pharmacol. 1980 Jul;32(7):478-82. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
No
General Function
Functions as a transport protein in the blood stream. Binds various ligands in the interior of its beta-barrel domain. Also binds synthetic drugs and influences their distribution and availability in the body. Appears to function in modulating the activity of the immune system during the acute-phase reaction
Specific Function
Not Available
Gene Name
ORM1
Uniprot ID
P02763
Uniprot Name
Alpha-1-acid glycoprotein 1
Molecular Weight
23539.43 Da
References
  1. Fitos I, Visy J, Simonyi M, Hermansson J: Stereoselective distribution of acenocoumarol enantiomers in human plasma: chiral chromatographic analysis of the ultrafiltrates. Chirality. 1993;5(5):346-9. [Article]
  2. Fitos I, Visy J, Magyar A, Kajtar J, Simonyi M: Inverse stereoselectivity in the binding of acenocoumarol to human serum albumin and to alpha 1-acid glycoprotein. Biochem Pharmacol. 1989 Jul 15;38(14):2259-62. [Article]
  3. Hazai E, Visy J, Fitos I, Bikadi Z, Simonyi M: Selective binding of coumarin enantiomers to human alpha1-acid glycoprotein genetic variants. Bioorg Med Chem. 2006 Mar 15;14(6):1959-65. Epub 2005 Nov 15. [Article]

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
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
  1. Saraeva RB, Paskaleva ID, Doncheva E, Eap CB, Ganev VS: Pharmacogenetics of acenocoumarol: CYP2C9, CYP2C19, CYP1A2, CYP3A4, CYP3A5 and ABCB1 gene polymorphisms and dose requirements. J Clin Pharm Ther. 2007 Dec;32(6):641-9. [Article]

Drug created at July 24, 2007 08:32 / Updated at October 17, 2024 13:59