Piroxicam

Identification

Summary

Piroxicam is an NSAID used to treat the symptoms of osteoarthritis and rheumatoid arthritis.

Brand Names
Feldene
Generic Name
Piroxicam
DrugBank Accession Number
DB00554
Background

A cyclooxygenase inhibiting, non-steroidal anti-inflammatory agent (NSAID) that is well established in treating rheumatoid arthritis and osteoarthritis and used for musculoskeletal disorders, dysmenorrhea, and postoperative pain. Its long half-life enables it to be administered once daily.

Type
Small Molecule
Groups
Approved, Investigational
Structure
Weight
Average: 331.346
Monoisotopic: 331.062676609
Chemical Formula
C15H13N3O4S
Synonyms
  • 4-Hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazin-3-caboxyamid-1,1-dioxid
  • Piroxicam
  • Piroxicam betadex
  • Piroxicamum
  • Pyroxycam
External IDs
  • CP-16,171

Pharmacology

Indication

For treatment of osteoarthritis and rheumatoid arthritis.

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Associated Conditions
Indication TypeIndicationCombined Product DetailsApproval LevelAge GroupPatient CharacteristicsDose Form
Symptomatic treatment ofAnkylosing spondylitis••••••••••••
Symptomatic treatment ofOsteoarthritis••••••••••••
Symptomatic treatment ofRheumatoid arthritis••••••••••••
Contraindications & Blackbox Warnings
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Pharmacodynamics

Piroxicam is in a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Piroxicam works by reducing hormones that cause inflammation and pain in the body. Piroxicam is used to reduce the pain, inflammation, and stiffness caused by rheumatoid arthritis and osteoarthritis.

Mechanism of action

The antiinflammatory effect of Piroxicam may result from the reversible inhibition of cyclooxygenase, causing the peripheral inhibition of prostaglandin synthesis. The prostaglandins are produced by an enzyme called Cox-1. Piroxicam blocks the Cox-1 enzyme, resulting into the disruption of production of prostaglandins. Piroxicam also inhibits the migration of leukocytes into sites of inflammation and prevents the formation of thromboxane A2, an aggregating agent, by the platelets.

TargetActionsOrganism
AProstaglandin G/H synthase 2
inhibitor
Humans
UProstaglandin G/H synthase 1
inhibitor
Humans
Absorption

Well absorbed following oral administration.

Volume of distribution
  • 0.14 L/kg
Protein binding

Not Available

Metabolism

Renal

Hover over products below to view reaction partners

Route of elimination

Piroxicam and its biotransformation products are excreted in urine and feces, with about twice as much appearing in the urine as in the feces. Approximately 5% of a piroxicam dose is excreted unchanged. However, a substantial portion of piroxicam elimination occurs by hepatic metabolism. Piroxicam is excreted into human milk.

Half-life

30 to 86 hours

Clearance

Not Available

Adverse Effects
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Toxicity

Symptoms of overdose include drowsiness, nausea, stomach pain, and/or vomiting.

Pathways
PathwayCategory
Piroxicam Action PathwayDrug action
Pharmacogenomic Effects/ADRs
Interacting Gene/EnzymeAllele nameGenotype(s)Defining Change(s)Type(s)DescriptionDetails
Cytochrome P450 2C9CYP2C9*2Not Available430C>TEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*3Not Available1075A>CEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*4Not Available1076T>CEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*5Not Available1080C>GEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*8Not Available449G>AEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*11Not Available1003C>TEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*12Not Available1465C>TEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*13Not Available269T>CEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*14Not Available374G>AEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*16Not Available895A>GEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*18Not Available1075A>C / 1190A>C  … show all Effect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*26Not Available389C>GEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*28Not Available641A>TEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*30Not Available1429G>AEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*33Not Available395G>AEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*6Not Available818delAEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*15Not Available485C>AEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*25Not Available353_362delAGAAATGGAAEffect InferredPoor drug metabolizer, lower dose requirement.Details
Cytochrome P450 2C9CYP2C9*35Not Available374G>T / 430C>TEffect InferredPoor drug metabolizer, 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
AbacavirPiroxicam may decrease the excretion rate of Abacavir which could result in a higher serum level.
AbataceptThe metabolism of Piroxicam can be increased when combined with Abatacept.
AbciximabThe risk or severity of bleeding and hemorrhage can be increased when Piroxicam is combined with Abciximab.
AbirateroneThe metabolism of Piroxicam can be decreased when combined with Abiraterone.
AbrocitinibThe metabolism of Abrocitinib can be decreased when combined with Piroxicam.
Food Interactions
  • Avoid alcohol.
  • Take with food.

Products

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dosage, form, labeller, route of administration, and marketing period.
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Product Images
International/Other Brands
Bruxicam / Dolonex / Erazon / Geldène / Improntal / Roxam (Bosnalijek) / Roxiden / Sasulen / Solocalm / Trast
Brand Name Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
FeldeneCapsule20 mg/1OralPhysicians Total Care, Inc.1994-05-252012-06-30US flag
FeldeneCapsule10 mg/1OralPfizer Laboratories Div Pfizer Inc1994-05-252024-01-31US flag
FeldeneCapsule20 mg/1OralRemedy Repack2012-07-192013-08-20US flag
FeldeneCapsule20 mg/1OralPfizer Laboratories Div Pfizer Inc1994-05-252024-06-30US flag
Feldene Cap 10mgCapsule10 mgOralPfizer Canada Ulc1981-12-312002-09-06Canada flag
Generic Prescription Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
Alti-piroxicam-cap 10mgCapsule10 mg / capOralAltimed Pharma Inc.1997-09-242004-08-03Canada flag
Alti-piroxicam-cap 20mgCapsule20 mg / capOralAltimed Pharma Inc.1995-12-312004-08-03Canada flag
Apo Piroxicam Cap 10mgCapsule10 mgOralApotex Corporation1986-12-31Not applicableCanada flag
Apo Piroxicam Cap 20mgCapsule20 mgOralApotex Corporation1986-12-31Not applicableCanada flag
Dom-piroxicamCapsule10 mgOralDominion PharmacalNot applicable2016-10-25Canada flag
Over the Counter Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
FELDENE (0.5% GEL)Gel0.5 %w/wTopicalบริษัท ไฟเซอร์ (ประเทศไทย) จำกัด2006-12-04Not applicableThailand flag
PREDENE GELGel0.5 %w/wTopicalบริษัท โรงงานเภสัชกรรมแอตแลนติค จำกัด2009-07-31Not applicableThailand flag
ROSIDEN GELGel5 mg/gTopicalZYFAS PHARMA PTE LTD1990-03-10Not applicableSingapore flag
ROXIFEN GEL 500 mg/100 gGel500 mg/100gTopicalJOYSON PTE. LTD.1999-05-06Not applicableSingapore flag
ค็อกซ์ซิแคม เจลGel0.5 %w/wTopicalบริษัท โรงงานเภสัชอุตสาหกรรม เจเอสพี (ประเทศไทย) จำกัด (มหาชน)2017-08-182020-09-29Thailand flag
Unapproved/Other Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing EndRegionImage
TherafeldaminePiroxicam (20 mg/1) + gamma-Aminobutyric acid (100 mg/1)KitOralPhysician Therapeutics Llc2011-03-03Not applicableUS flag

Categories

ATC Codes
M01AC01 — PiroxicamM02AA07 — PiroxicamS01BC06 — Piroxicam
Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as benzothiazines. These are organic compounds containing a benzene fused to a thiazine ring (a six-membered ring with four carbon atoms, one nitrogen atom and one sulfur atom).
Kingdom
Organic compounds
Super Class
Organoheterocyclic compounds
Class
Benzothiazines
Sub Class
Not Available
Direct Parent
Benzothiazines
Alternative Parents
Alpha amino acids and derivatives / Pyridines and derivatives / Organosulfonamides / 1,2-thiazines / Benzenoids / Imidolactams / Heteroaromatic compounds / Secondary carboxylic acid amides / Azacyclic compounds / Carboximidic acids
show 6 more
Substituents
Alpha-amino acid or derivatives / Aromatic heteropolycyclic compound / Azacycle / Benzenoid / Benzothiazine / Carbonyl group / Carboximidic acid / Carboxylic acid derivative / Heteroaromatic compound / Hydrocarbon derivative
show 14 more
Molecular Framework
Aromatic heteropolycyclic compounds
External Descriptors
monocarboxylic acid amide, pyridines, benzothiazine (CHEBI:8249)
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
13T4O6VMAM
CAS number
36322-90-4
InChI Key
QYSPLQLAKJAUJT-UHFFFAOYSA-N
InChI
InChI=1S/C15H13N3O4S/c1-18-13(15(20)17-12-8-4-5-9-16-12)14(19)10-6-2-3-7-11(10)23(18,21)22/h2-9,19H,1H3,(H,16,17,20)
IUPAC Name
4-hydroxy-2-methyl-1,1-dioxo-N-(pyridin-2-yl)-2H-1lambda6,2-benzothiazine-3-carboxamide
SMILES
CN1C(C(=O)NC2=NC=CC=C2)=C(O)C2=C(C=CC=C2)S1(=O)=O

References

Synthesis Reference

Paul D. Weeks, "3-Hydroxy 2-methyl benzisothiazolines as intermediates in production of piroxicam." U.S. Patent US4376204, issued April, 1982.

US4376204
General References
Not Available
Human Metabolome Database
HMDB0014694
KEGG Drug
D00127
KEGG Compound
C01608
PubChem Compound
54676228
PubChem Substance
46505225
ChemSpider
10442653
BindingDB
85245
RxNav
8356
ChEBI
8249
ChEMBL
CHEMBL527
ZINC
ZINC000051133897
Therapeutic Targets Database
DAP000181
PharmGKB
PA450985
RxList
RxList Drug Page
Drugs.com
Drugs.com Drug Page
PDRhealth
PDRhealth Drug Page
Wikipedia
Piroxicam
FDA label
Download (74.3 KB)
MSDS
Download (73.3 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 AvailableCompletedSupportive CareMetastatic Cancer1somestatusstop reasonjust information to hide
Not AvailableUnknown StatusPreventionTooth, Nonvital1somestatusstop reasonjust information to hide
4CompletedSupportive CareCytochrome P450 CYP2C9 Enzyme Deficiency / Impacted Third Molar Tooth / Other Surgical Procedures / Pain1somestatusstop reasonjust information to hide
4CompletedSupportive CareSymptomatic Irreversible Pulpitis (SIP)1somestatusstop reasonjust information to hide
4CompletedTreatmentHypertension1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
  • Akorn inc
  • Pfizer laboratories div pfizer inc
  • Egis pharmaceuticals
  • Genpharm pharmaceuticals inc
  • Ivax pharmaceuticals inc sub teva pharmaceuticals usa
  • Mutual pharmaceutical co inc
  • Mylan pharmaceuticals inc
  • Nostrum laboratories inc
  • Roxane laboratories inc
  • Scs pharmaceuticals
  • Teva pharmaceuticals usa inc
  • Teva pharmaceuticals usa
  • Watson laboratories inc
Packagers
  • Advanced Pharmaceutical Services Inc.
  • Aidarex Pharmacuticals LLC
  • Akorn Inc.
  • Amerisource Health Services Corp.
  • AQ Pharmaceuticals Inc.
  • A-S Medication Solutions LLC
  • Bryant Ranch Prepack
  • Corepharma LLC
  • Direct Dispensing Inc.
  • Dispensing Solutions
  • Diversified Healthcare Services Inc.
  • Egis Pharmaceuticals Public Ltd. Co.
  • Goldline Laboratories Inc.
  • Group Health Cooperative
  • H.J. Harkins Co. Inc.
  • Innoviant Pharmacy Inc.
  • Keltman Pharmaceuticals Inc.
  • Lake Erie Medical and Surgical Supply
  • Liberty Pharmaceuticals
  • Major Pharmaceuticals
  • Medisca Inc.
  • Mepha Ltd.
  • Murfreesboro Pharmaceutical Nursing Supply
  • Mylan
  • Nostrum Laboratories Inc.
  • Novopharm Ltd.
  • Nucare Pharmaceuticals Inc.
  • Pack Pharmaceuticals
  • Palmetto Pharmaceuticals Inc.
  • PD-Rx Pharmaceuticals Inc.
  • Pfizer Inc.
  • Pharmaceutical Utilization Management Program VA Inc.
  • Pharmedix
  • Physicians Total Care Inc.
  • Preferred Pharmaceuticals Inc.
  • Prepackage Specialists
  • Prepak Systems Inc.
  • Prescription Dispensing Service Inc.
  • Qualitest
  • Ranbaxy Laboratories
  • Rebel Distributors Corp.
  • Redpharm Drug
  • Remedy Repack
  • Sandhills Packaging Inc.
  • Southwood Pharmaceuticals
  • St Mary's Medical Park Pharmacy
  • Teva Pharmaceutical Industries Ltd.
  • UDL Laboratories
  • United Research Laboratories Inc.
  • Va Cmop Dallas
Dosage Forms
FormRouteStrength
Tablet, coatedOral10 mg
Granule, for solutionOral
Tablet, effervescent
GelTopical0.500 g
SolutionParenteral20 mg
TabletOral2 g
TabletOral
Aerosol, foamTopical10 MG/G
CreamTopical10 mg/g
OintmentTopical0.5 %
OintmentTopical10 mg/g
Granule, for solutionOral20 MG
Tablet, effervescent20 MG
Tablet, effervescentOral20 MG
Injection, powder, for solutionIntramuscular
Injection, powder, for solutionIntramuscular20 MG/2ML
Capsule, coatedOral10 mg
Tablet, coatedOral500 mg
GelTopical1 %
TabletOral20.000 mg
PatchTopical
SolutionParenteral21 mg
Gel5 MG
CapsuleOral10.000 mg
GelCutaneous0.500 g
SolutionIntramuscular20.000 mg
GelTopical
CapsuleOral
Injection, solutionIntramuscular
Tablet, for suspensionOral20 mg
Tablet, orally disintegratingOral20 mg
CapsuleOral20.000 mg
Injection, solutionIntramuscular20 MG/1ML
TabletOral20 mg
SolutionIntramuscular20 mg
SuppositoryRectal10 mg / sup
SuppositoryRectal20 mg / sup
Gel5 MG/G
CreamTopical
Aerosol, foamTopical
GelTopical0.5 %
Tablet, solubleOral20 MG
CapsuleOral10 MG
GelTopical500 mg
CreamTopical1 %
SuppositoryRectal20 MG
Capsule, coatedOral20 mg
SolutionParenteral200000 mg
Solution / dropsOphthalmic
CapsuleOral10 mg/1
CapsuleOral20 mg/1
Capsule; tabletOral10 MG
GelTopical0.5 g
InjectionIntramuscular20 mg
InjectionIntramuscular40 mg
SolutionParenteral40 mg
SolutionIntramuscular40 mg
GelTopical5 mg/g
Capsule, coatedOral20.4 mg
Injection, solutionIntramuscular; Parenteral20 MG/ML
Injection, solutionIntramuscular; Parenteral20 MG/1ML
Tablet, solubleOral
SuppositoryRectal10 mg
TabletOral10 mg / cap
Capsule, liquid filledOral10 mg
GelTopical1 g
Capsule, liquid filledOral20 mg
CapsuleOral10 mg / cap
CapsuleOral20 mg / cap
SuppositoryRectal
InjectionIntramuscular20 mg/ml
GelTopical500 mg/100g
GelTopical5 MG
Injection, solution
Powder, for solutionOral20 mg
KitOral
Capsule, coatedOral2000000 mg
LiquidOphthalmic5 mg/1ml
Tablet, coatedOral20 mg
GelTopical0.5 %w/w
TabletOral10 mg
CapsuleOral20 mg
Tablet, film coated10 mg
Prices
Unit descriptionCostUnit
Piroxicam powder13.16USD g
Akten 3.5% drops7.5USD ml
Feldene 20 mg capsule4.93USD capsule
Feldene 10 mg capsule2.82USD capsule
Piroxicam 20 mg capsule2.69USD capsule
Pms-Piroxicam 20 mg Suppository1.82USD suppository
Piroxicam 10 mg capsule1.44USD capsule
Apo-Piroxicam 20 mg Capsule0.75USD capsule
Novo-Pirocam 20 mg Capsule0.75USD capsule
Nu-Pirox 20 mg Capsule0.75USD capsule
Apo-Piroxicam 10 mg Capsule0.43USD capsule
Gen-Piroxicam 10 mg Capsule0.43USD capsule
Novo-Pirocam 10 mg Capsule0.43USD capsule
Nu-Pirox 10 mg Capsule0.43USD capsule
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)198-200 °CPhysProp
water solubility23 mg/L (at 22 °C)YALKOWSKY,SH & DANNENFELSER,RM (1992)
logP3.06AVDEEF,A (1997)
logS-4.16ADME Research, USCD
Caco2 permeability-4.45ADME Research, USCD
pKa6.3SANGSTER (1994)
Predicted Properties
PropertyValueSource
Water Solubility0.143 mg/mLALOGPS
logP2.2ALOGPS
logP0.6Chemaxon
logS-3.4ALOGPS
pKa (Strongest Acidic)4.76Chemaxon
pKa (Strongest Basic)3.79Chemaxon
Physiological Charge-1Chemaxon
Hydrogen Acceptor Count5Chemaxon
Hydrogen Donor Count2Chemaxon
Polar Surface Area99.6 Å2Chemaxon
Rotatable Bond Count2Chemaxon
Refractivity87.04 m3·mol-1Chemaxon
Polarizability32.27 Å3Chemaxon
Number of Rings3Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
Predicted ADMET Features
PropertyValueProbability
Human Intestinal Absorption+0.9898
Blood Brain Barrier-0.9659
Caco-2 permeable+0.8867
P-glycoprotein substrateSubstrate0.5786
P-glycoprotein inhibitor INon-inhibitor0.7285
P-glycoprotein inhibitor IINon-inhibitor0.7453
Renal organic cation transporterNon-inhibitor0.9437
CYP450 2C9 substrateSubstrate0.6437
CYP450 2D6 substrateNon-substrate0.9116
CYP450 3A4 substrateNon-substrate0.7356
CYP450 1A2 substrateNon-inhibitor0.9045
CYP450 2C9 inhibitorInhibitor0.9086
CYP450 2D6 inhibitorNon-inhibitor0.9231
CYP450 2C19 inhibitorNon-inhibitor0.9025
CYP450 3A4 inhibitorNon-inhibitor0.8789
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.8709
Ames testNon AMES toxic0.8767
CarcinogenicityNon-carcinogens0.7612
BiodegradationNot ready biodegradable0.923
Rat acute toxicity3.1545 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9589
hERG inhibition (predictor II)Non-inhibitor0.8311
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-MSsplash10-014i-3911000000-4ebab92e0a9daf942bf0
LC-MS/MS Spectrum - LC-ESI-qTof , PositiveLC-MS/MSsplash10-1000-1698000000-9bfc929b8cee2ec1d841
LC-MS/MS Spectrum - LC-ESI-qTof , PositiveLC-MS/MSsplash10-00dj-6911100000-64e355e5e08c884173b8
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-001i-0019000000-0d247806d6203409cc16
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-014j-0591000000-7d11d429795ac27fa093
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-000t-0910000000-42d97ebe5da8190aa202
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-001m-2900000000-32c34cd63ced296fee89
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-00kf-5900000000-1d4473d813b920140b81
LC-MS/MS Spectrum - LC-ESI-QQ , positiveLC-MS/MSsplash10-00lr-0009000000-9e65aa6e4b407ea80734
LC-MS/MS Spectrum - LC-ESI-QQ , positiveLC-MS/MSsplash10-000f-3984000000-e855ded4bfe08c600884
LC-MS/MS Spectrum - LC-ESI-QQ , positiveLC-MS/MSsplash10-007c-3900000000-fb37337024398fe8044d
LC-MS/MS Spectrum - LC-ESI-QQ , positiveLC-MS/MSsplash10-006t-9600000000-db1bff24de3a9b89b68d
LC-MS/MS Spectrum - LC-ESI-QQ , positiveLC-MS/MSsplash10-00r2-9200000000-22caea8b3219419be51f
LC-MS/MS Spectrum - LC-ESI-IT , positiveLC-MS/MSsplash10-01vk-6900000000-a75ce07d3bc58c9e773b
MS/MS Spectrum - , positiveLC-MS/MSsplash10-001i-5829000000-bfa87ed6f54b64fe3942
MS/MS Spectrum - , positiveLC-MS/MSsplash10-1000-1698000000-9bfc929b8cee2ec1d841
MS/MS Spectrum - , positiveLC-MS/MSsplash10-00dj-6911100000-64e355e5e08c884173b8
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-001i-0209000000-66312a4c5e7f702984ce
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-00xs-0920000000-1e8de22ac2ba9037c727
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-00di-4901000000-83287769dc339ea0594f
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0002-0921000000-d3c644c7cb098d229bf7
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-00di-4932000000-4925ea77f49ae99b46ee
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-02t9-4911000000-368394a5e9144fbdfdbf
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]-177.7012979
predicted
DarkChem Lite v0.1.0
[M-H]-178.3851979
predicted
DarkChem Lite v0.1.0
[M-H]-166.28563
predicted
DeepCCS 1.0 (2019)
[M+H]+177.6479979
predicted
DarkChem Lite v0.1.0
[M+H]+178.5391979
predicted
DarkChem Lite v0.1.0
[M+H]+168.64363
predicted
DeepCCS 1.0 (2019)
[M+Na]+177.8416979
predicted
DarkChem Lite v0.1.0
[M+Na]+178.5877979
predicted
DarkChem Lite v0.1.0
[M+Na]+174.73677
predicted
DeepCCS 1.0 (2019)

Targets

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insights and accelerate drug research.
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Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Dual cyclooxygenase and peroxidase in the biosynthesis pathway of prostanoids, a class of C20 oxylipins mainly derived from arachidonate ((5Z,8Z,11Z,14Z)-eicosatetraenoate, AA, C20:4(n-6)), with a particular role in the inflammatory response (PubMed:11939906, PubMed:16373578, PubMed:19540099, PubMed:22942274, PubMed:26859324, PubMed:27226593, PubMed:7592599, PubMed:7947975, PubMed:9261177). The cyclooxygenase activity oxygenates AA to the hydroperoxy endoperoxide prostaglandin G2 (PGG2), and the peroxidase activity reduces PGG2 to the hydroxy endoperoxide prostaglandin H2 (PGH2), the precursor of all 2-series prostaglandins and thromboxanes (PubMed:16373578, PubMed:22942274, PubMed:26859324, PubMed:27226593, PubMed:7592599, PubMed:7947975, PubMed:9261177). This complex transformation is initiated by abstraction of hydrogen at carbon 13 (with S-stereochemistry), followed by insertion of molecular O2 to form the endoperoxide bridge between carbon 9 and 11 that defines prostaglandins. The insertion of a second molecule of O2 (bis-oxygenase activity) yields a hydroperoxy group in PGG2 that is then reduced to PGH2 by two electrons (PubMed:16373578, PubMed:22942274, PubMed:26859324, PubMed:27226593, PubMed:7592599, PubMed:7947975, PubMed:9261177). Similarly catalyzes successive cyclooxygenation and peroxidation of dihomo-gamma-linoleate (DGLA, C20:3(n-6)) and eicosapentaenoate (EPA, C20:5(n-3)) to corresponding PGH1 and PGH3, the precursors of 1- and 3-series prostaglandins (PubMed:11939906, PubMed:19540099). In an alternative pathway of prostanoid biosynthesis, converts 2-arachidonoyl lysophopholipids to prostanoid lysophopholipids, which are then hydrolyzed by intracellular phospholipases to release free prostanoids (PubMed:27642067). Metabolizes 2-arachidonoyl glycerol yielding the glyceryl ester of PGH2, a process that can contribute to pain response (PubMed:22942274). Generates lipid mediators from n-3 and n-6 polyunsaturated fatty acids (PUFAs) via a lipoxygenase-type mechanism. Oxygenates PUFAs to hydroperoxy compounds and then reduces them to corresponding alcohols (PubMed:11034610, PubMed:11192938, PubMed:9048568, PubMed:9261177). Plays a role in the generation of resolution phase interaction products (resolvins) during both sterile and infectious inflammation (PubMed:12391014). Metabolizes docosahexaenoate (DHA, C22:6(n-3)) to 17R-HDHA, a precursor of the D-series resolvins (RvDs) (PubMed:12391014). As a component of the biosynthetic pathway of E-series resolvins (RvEs), converts eicosapentaenoate (EPA, C20:5(n-3)) primarily to 18S-HEPE that is further metabolized by ALOX5 and LTA4H to generate 18S-RvE1 and 18S-RvE2 (PubMed:21206090). In vascular endothelial cells, converts docosapentaenoate (DPA, C22:5(n-3)) to 13R-HDPA, a precursor for 13-series resolvins (RvTs) shown to activate macrophage phagocytosis during bacterial infection (PubMed:26236990). In activated leukocytes, contributes to oxygenation of hydroxyeicosatetraenoates (HETE) to diHETES (5,15-diHETE and 5,11-diHETE) (PubMed:22068350, PubMed:26282205). Can also use linoleate (LA, (9Z,12Z)-octadecadienoate, C18:2(n-6)) as substrate and produce hydroxyoctadecadienoates (HODEs) in a regio- and stereospecific manner, being (9R)-HODE ((9R)-hydroxy-(10E,12Z)-octadecadienoate) and (13S)-HODE ((13S)-hydroxy-(9Z,11E)-octadecadienoate) its major products (By similarity). During neuroinflammation, plays a role in neuronal secretion of specialized preresolving mediators (SPMs) 15R-lipoxin A4 that regulates phagocytic microglia (By similarity)
Specific Function
Enzyme binding
Gene Name
PTGS2
Uniprot ID
P35354
Uniprot Name
Prostaglandin G/H synthase 2
Molecular Weight
68995.625 Da
References
  1. Blanco FJ, Guitian R, Moreno J, de Toro FJ, Galdo F: Effect of antiinflammatory drugs on COX-1 and COX-2 activity in human articular chondrocytes. J Rheumatol. 1999 Jun;26(6):1366-73. [Article]
  2. Bugajski J, Glod R, Gadek-Michalska A, Bugajski AJ: Involvement of constitutive (COX-1) and inducible cyclooxygenase (COX-2) in the adrenergic-induced ACTH and corticosterone secretion. J Physiol Pharmacol. 2001 Dec;52(4 Pt 2):795-809. [Article]
  3. Fackovcova D, Kristova V, Kriska M: Renal damage induced by the treatment with non-opioid analgesics--theoretical assumption or clinical significance. Bratisl Lek Listy. 2000;101(8):417-22. [Article]
  4. Raju J, Bird RP: Differential modulation of transforming growth factor-betas and cyclooxygenases in the platelet lysates of male F344 rats by dietary lipids and piroxicam. Mol Cell Biochem. 2002 Feb;231(1-2):139-46. [Article]
  5. Veiga AP, Duarte ID, Avila MN, da Motta PG, Tatsuo MA, Francischi JN: Prevention by celecoxib of secondary hyperalgesia induced by formalin in rats. Life Sci. 2004 Oct 22;75(23):2807-17. [Article]
  6. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Dual cyclooxygenase and peroxidase that plays an important role in the biosynthesis pathway of prostanoids, a class of C20 oxylipins mainly derived from arachidonate ((5Z,8Z,11Z,14Z)-eicosatetraenoate, AA, C20:4(n-6)), with a particular role in the inflammatory response. The cyclooxygenase activity oxygenates AA to the hydroperoxy endoperoxide prostaglandin G2 (PGG2), and the peroxidase activity reduces PGG2 to the hydroxy endoperoxide prostaglandin H2 (PGH2), the precursor of all 2-series prostaglandins and thromboxanes. This complex transformation is initiated by abstraction of hydrogen at carbon 13 (with S-stereochemistry), followed by insertion of molecular O2 to form the endoperoxide bridge between carbon 9 and 11 that defines prostaglandins. The insertion of a second molecule of O2 (bis-oxygenase activity) yields a hydroperoxy group in PGG2 that is then reduced to PGH2 by two electrons (PubMed:7947975). Involved in the constitutive production of prostanoids in particular in the stomach and platelets. In gastric epithelial cells, it is a key step in the generation of prostaglandins, such as prostaglandin E2 (PGE2), which plays an important role in cytoprotection. In platelets, it is involved in the generation of thromboxane A2 (TXA2), which promotes platelet activation and aggregation, vasoconstriction and proliferation of vascular smooth muscle cells (Probable). Can also use linoleate (LA, (9Z,12Z)-octadecadienoate, C18:2(n-6)) as substrate and produce hydroxyoctadecadienoates (HODEs) in a regio- and stereospecific manner, being (9R)-HODE ((9R)-hydroxy-(10E,12Z)-octadecadienoate) and (13S)-HODE ((13S)-hydroxy-(9Z,11E)-octadecadienoate) its major products (By similarity)
Specific Function
Heme binding
Gene Name
PTGS1
Uniprot ID
P23219
Uniprot Name
Prostaglandin G/H synthase 1
Molecular Weight
68685.82 Da
References
  1. Blanco FJ, Guitian R, Moreno J, de Toro FJ, Galdo F: Effect of antiinflammatory drugs on COX-1 and COX-2 activity in human articular chondrocytes. J Rheumatol. 1999 Jun;26(6):1366-73. [Article]
  2. Bugajski J, Glod R, Gadek-Michalska A, Bugajski AJ: Involvement of constitutive (COX-1) and inducible cyclooxygenase (COX-2) in the adrenergic-induced ACTH and corticosterone secretion. J Physiol Pharmacol. 2001 Dec;52(4 Pt 2):795-809. [Article]
  3. Fackovcova D, Kristova V, Kriska M: Renal damage induced by the treatment with non-opioid analgesics--theoretical assumption or clinical significance. Bratisl Lek Listy. 2000;101(8):417-22. [Article]
  4. Raju J, Bird RP: Differential modulation of transforming growth factor-betas and cyclooxygenases in the platelet lysates of male F344 rats by dietary lipids and piroxicam. Mol Cell Biochem. 2002 Feb;231(1-2):139-46. [Article]
  5. Veiga AP, Duarte ID, Avila MN, da Motta PG, Tatsuo MA, Francischi JN: Prevention by celecoxib of secondary hyperalgesia induced by formalin in rats. Life Sci. 2004 Oct 22;75(23):2807-17. [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, steroid hormones and vitamins (PubMed:11093772, PubMed:14559847, PubMed:15766564, PubMed:19965576, PubMed:7574697). 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:11093772, PubMed:14559847, PubMed:15766564, PubMed:19965576, PubMed:7574697). Primarily catalyzes the epoxidation of double bonds of polyunsaturated fatty acids (PUFA) with a preference for the last double bond (PubMed:15766564, PubMed:19965576, PubMed:7574697). Catalyzes the hydroxylation of carbon-hydrogen bonds. Metabolizes all trans-retinoic acid toward its 4-hydroxylated form (PubMed:11093772). Displays 16-alpha hydroxylase activity toward estrogen steroid hormones, 17beta-estradiol (E2) and estrone (E1) (PubMed:14559847). Plays a role in the oxidative metabolism of xenobiotics. It is the principal enzyme responsible for the metabolism of the anti-cancer drug paclitaxel (taxol) (PubMed:26427316)
Specific Function
Arachidonic acid epoxygenase activity
Gene Name
CYP2C8
Uniprot ID
P10632
Uniprot Name
Cytochrome P450 2C8
Molecular Weight
55824.275 Da
References
  1. Calvo AM, Zupelari-Goncalves P, Dionisio TJ, Brozoski DT, Faria FA, Santos CF: Efficacy of piroxicam for postoperative pain after lower third molar surgery associated with CYP2C8*3 and CYP2C9. J Pain Res. 2017 Jul 6;10:1581-1589. doi: 10.2147/JPR.S138147. eCollection 2017. [Article]
  2. Kim KA, Oh SO, Park PW, Park JY: Effect of probenecid on the pharmacokinetics of carbamazepine in healthy subjects. Eur J Clin Pharmacol. 2005 Jun;61(4):275-80. doi: 10.1007/s00228-005-0940-7. Epub 2005 May 25. [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 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. Pelkonen O, Maenpaa J, Taavitsainen P, Rautio A, Raunio H: Inhibition and induction of human cytochrome P450 (CYP) enzymes. Xenobiotica. 1998 Dec;28(12):1203-53. [Article]
  2. Du H, Wei Z, Yan Y, Xiong Y, Zhang X, Shen L, Ruan Y, Wu X, Xu Q, He L, Qin S: Functional Characterization of Human CYP2C9 Allelic Variants in COS-7 Cells. Front Pharmacol. 2016 Apr 25;7:98. doi: 10.3389/fphar.2016.00098. eCollection 2016. [Article]
  3. Flockhart Table of Drug Interactions [Link]

Carriers

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
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. Bertucci C, Wainer IW: Improved chromatographic performance of a modified human albumin based stationary phase. Chirality. 1997;9(4):335-40. [Article]

Transporters

Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Secondary active transporter that functions as a Na(+)-independent organic anion (OA)/dicarboxylate antiporter where the uptake of one molecule of OA into the cell is coupled with an efflux of one molecule of intracellular dicarboxylate such as 2-oxoglutarate or glutarate (PubMed:11669456, PubMed:11907186, PubMed:14675047, PubMed:22108572, PubMed:23832370, PubMed:28534121, PubMed:9950961). Mediates the uptake of OA across the basolateral side of proximal tubule epithelial cells, thereby contributing to the renal elimination of endogenous OA from the systemic circulation into the urine (PubMed:9887087). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). Transports prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) and may contribute to their renal excretion (PubMed:11907186). Also mediates the uptake of cyclic nucleotides such as cAMP and cGMP (PubMed:26377792). Involved in the transport of neuroactive tryptophan metabolites kynurenate (KYNA) and xanthurenate (XA) and may contribute to their secretion from the brain (PubMed:22108572, PubMed:23832370). May transport glutamate (PubMed:26377792). Also involved in the disposition of uremic toxins and potentially toxic xenobiotics by the renal organic anion secretory pathway, helping reduce their undesired toxicological effects on the body (PubMed:11669456, PubMed:14675047). Uremic toxins include the indoxyl sulfate (IS), hippurate/N-benzoylglycine (HA), indole acetate (IA), 3-carboxy-4- methyl-5-propyl-2-furanpropionate (CMPF) and urate (PubMed:14675047, PubMed:26377792). Xenobiotics include the mycotoxin ochratoxin (OTA) (PubMed:11669456). May also contribute to the transport of organic compounds in testes across the blood-testis-barrier (PubMed:35307651)
Specific Function
Alpha-ketoglutarate transmembrane transporter activity
Gene Name
SLC22A6
Uniprot ID
Q4U2R8
Uniprot Name
Solute carrier family 22 member 6
Molecular Weight
61815.78 Da
References
  1. Mulato AS, Ho ES, Cihlar T: Nonsteroidal anti-inflammatory drugs efficiently reduce the transport and cytotoxicity of adefovir mediated by the human renal organic anion transporter 1. J Pharmacol Exp Ther. 2000 Oct;295(1):10-5. [Article]
  2. Jung KY, Takeda M, Kim DK, Tojo A, Narikawa S, Yoo BS, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of ochratoxin A transport by human organic anion transporters. Life Sci. 2001 Sep 21;69(18):2123-35. [Article]
  3. Takeda M, Khamdang S, Narikawa S, Kimura H, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of methotrexate transport and its drug interactions with human organic anion transporters. J Pharmacol Exp Ther. 2002 Aug;302(2):666-71. [Article]
  4. Apiwattanakul N, Sekine T, Chairoungdua A, Kanai Y, Nakajima N, Sophasan S, Endou H: Transport properties of nonsteroidal anti-inflammatory drugs by organic anion transporter 1 expressed in Xenopus laevis oocytes. Mol Pharmacol. 1999 May;55(5):847-54. [Article]
  5. Tsuda M, Sekine T, Takeda M, Cha SH, Kanai Y, Kimura M, Endou H: Transport of ochratoxin A by renal multispecific organic anion transporter 1. J Pharmacol Exp Ther. 1999 Jun;289(3):1301-5. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Functions as an organic anion/dicarboxylate exchanger that couples organic anion uptake indirectly to the sodium gradient (PubMed:14586168, PubMed:15644426, PubMed:15846473, PubMed:16455804, PubMed:31553721). Transports organic anions such as estrone 3-sulfate (E1S) and urate in exchange for dicarboxylates such as glutarate or ketoglutarate (2-oxoglutarate) (PubMed:14586168, PubMed:15846473, PubMed:15864504, PubMed:22108572, PubMed:23832370). Plays an important role in the excretion of endogenous and exogenous organic anions, especially from the kidney and the brain (PubMed:11306713, PubMed:14586168, PubMed:15846473). E1S transport is pH- and chloride-dependent and may also involve E1S/cGMP exchange (PubMed:26377792). Responsible for the transport of prostaglandin E2 (PGE2) and prostaglandin F2(alpha) (PGF2(alpha)) in the basolateral side of the renal tubule (PubMed:11907186). Involved in the transport of neuroactive tryptophan metabolites kynurenate and xanthurenate (PubMed:22108572, PubMed:23832370). Functions as a biopterin transporters involved in the uptake and the secretion of coenzymes tetrahydrobiopterin (BH4), dihydrobiopterin (BH2) and sepiapterin to urine, thereby determining baseline levels of blood biopterins (PubMed:28534121). May be involved in the basolateral transport of steviol, a metabolite of the popular sugar substitute stevioside (PubMed:15644426). May participate in the detoxification/ renal excretion of drugs and xenobiotics, such as the histamine H(2)-receptor antagonists fexofenadine and cimetidine, the antibiotic benzylpenicillin (PCG), the anionic herbicide 2,4-dichloro-phenoxyacetate (2,4-D), the diagnostic agent p-aminohippurate (PAH), the antiviral acyclovir (ACV), and the mycotoxin ochratoxin (OTA), by transporting these exogenous organic anions across the cell membrane in exchange for dicarboxylates such as 2-oxoglutarate (PubMed:11669456, PubMed:15846473, PubMed:16455804). Contributes to the renal uptake of potent uremic toxins (indoxyl sulfate (IS), indole acetate (IA), hippurate/N-benzoylglycine (HA) and 3-carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF)), pravastatin, PCG, E1S and dehydroepiandrosterone sulfate (DHEAS), and is partly involved in the renal uptake of temocaprilat (an angiotensin-converting enzyme (ACE) inhibitor) (PubMed:14675047). May contribute to the release of cortisol in the adrenals (PubMed:15864504). Involved in one of the detoxification systems on the choroid plexus (CP), removes substrates such as E1S or taurocholate (TC), PCG, 2,4-D and PAH, from the cerebrospinal fluid (CSF) to the blood for eventual excretion in urine and bile (By similarity). Also contributes to the uptake of several other organic compounds such as the prostanoids prostaglandin E(2) and prostaglandin F(2-alpha), L-carnitine, and the therapeutic drugs allopurinol, 6-mercaptopurine (6-MP) and 5-fluorouracil (5-FU) (By similarity). Mediates the transport of PAH, PCG, and the statins pravastatin and pitavastatin, from the cerebrum into the blood circulation across the blood-brain barrier (BBB). In summary, plays a role in the efflux of drugs and xenobiotics, helping reduce their undesired toxicological effects on the body (By similarity)
Specific Function
Organic anion transmembrane transporter activity
Gene Name
SLC22A8
Uniprot ID
Q8TCC7
Uniprot Name
Organic anion transporter 3
Molecular Weight
59855.585 Da
References
  1. Jung KY, Takeda M, Kim DK, Tojo A, Narikawa S, Yoo BS, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of ochratoxin A transport by human organic anion transporters. Life Sci. 2001 Sep 21;69(18):2123-35. [Article]
  2. Takeda M, Khamdang S, Narikawa S, Kimura H, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of methotrexate transport and its drug interactions with human organic anion transporters. J Pharmacol Exp Ther. 2002 Aug;302(2):666-71. [Article]
  3. Kusuhara H, Sekine T, Utsunomiya-Tate N, Tsuda M, Kojima R, Cha SH, Sugiyama Y, Kanai Y, Endou H: Molecular cloning and characterization of a new multispecific organic anion transporter from rat brain. J Biol Chem. 1999 May 7;274(19):13675-80. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inhibitor
General Function
Antiporter that mediates the transport of conjugated steroids and other specific organic anions at the basal membrane of syncytiotrophoblast and at the apical membrane of proximal tubule epithelial cells, in exchange for anionic compounds (PubMed:10660625, PubMed:11907186, PubMed:15037815, PubMed:15102942, PubMed:15291761, PubMed:15576633, PubMed:17229912, PubMed:18501590, PubMed:26277985, PubMed:28027879). May be responsible for placental absorption of fetal-derived steroid sulfates such as estrone sulfate (E1S) and the steroid hormone precursor dehydroepiandrosterone sulfate (DHEA-S), as well as clearing waste products and xenobiotics from the fetus (PubMed:12409283). Maybe also be involved in placental urate homeostasis (PubMed:17229912). Facilitates the renal reabsorption of organic anions such as urate and derived steroid sulfates (PubMed:15037815, PubMed:17229912). Organic anion glutarate acts as conteranion for E1S renal uptake (PubMed:15037815, PubMed:17229912). Possible transport mode may also include DHEA-S/E1S exchange (PubMed:28027879). Also interacts with inorganic anions such as chloride and hydroxyl ions, therefore possible transport modes may include E1S/Cl(-), E1S/OH(-), urate/Cl(-) and urate/OH(-) (PubMed:17229912). Also mediates the transport of prostaglandin E2 (PGE2) and prostaglandin F2-alpha (PGF2-alpha) and may be involved in their renal excretion (PubMed:11907186). Also able to uptake anionic drugs, diuretics, bile salts and ochratoxin A (PubMed:10660625, PubMed:26277985). Mediates the unidirectional efflux of glutamate and aspartate (PubMed:28027879). Glutamate efflux down its transmembrane gradient may drive SLC22A11/OAT4-mediated placental uptake of E1S (PubMed:26277985)
Specific Function
Organic anion transmembrane transporter activity
Gene Name
SLC22A11
Uniprot ID
Q9NSA0
Uniprot Name
Solute carrier family 22 member 11
Molecular Weight
59970.945 Da
References
  1. Babu E, Takeda M, Narikawa S, Kobayashi Y, Enomoto A, Tojo A, Cha SH, Sekine T, Sakthisekaran D, Endou H: Role of human organic anion transporter 4 in the transport of ochratoxin A. Biochim Biophys Acta. 2002 Jun 12;1590(1-3):64-75. [Article]
  2. Takeda M, Khamdang S, Narikawa S, Kimura H, Hosoyamada M, Cha SH, Sekine T, Endou H: Characterization of methotrexate transport and its drug interactions with human organic anion transporters. J Pharmacol Exp Ther. 2002 Aug;302(2):666-71. [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
  1. 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]

Drug created at June 13, 2005 13:24 / Updated at September 15, 2024 01:12