Icosapent

Identification

Summary

Icosapent is a polyunsaturated fatty acid, usually found in fish oils, that is used in many supplements.

Brand Names
Animi-3 With Vitamin D
Generic Name
Icosapent
DrugBank Accession Number
DB00159
Background

Important polyunsaturated fatty acid found in fish oils. It serves as the precursor for the prostaglandin-3 and thromboxane-3 families. A diet rich in eicosapentaenoic acid lowers serum lipid concentration, reduces incidence of cardiovascular disorders, prevents platelet aggregation, and inhibits arachidonic acid conversion into the thromboxane-2 and prostaglandin-2 families.

Type
Small Molecule
Groups
Approved, Nutraceutical
Structure
Weight
Average: 302.451
Monoisotopic: 302.224580204
Chemical Formula
C20H30O2
Synonyms
  • (5Z,8Z,11Z,14Z,17Z)-5,8,11,14,17-eicosapentaenoic acid
  • (5Z,8Z,11Z,14Z,17Z)-Eicosapentaenoate
  • (5Z,8Z,11Z,14Z,17Z)-Eicosapentaenoic acid
  • (5Z,8Z,11Z,14Z,17Z)-Icosapentaenoic acid
  • (all-Z)-5,8,11,14,17-eicosapentaenoic acid
  • 5,8,11,14,17-eicosapentaenoic acid
  • 5,8,11,14,17-Icosapentaenoic acid
  • all-cis-5,8,11,14,17-eicosapentaenoic acid
  • all-cis-5,8,11,14,17-icosapentaenoic acid
  • all-cis-icosa-5,8,11,14,17-pentaenoic acid
  • cis-5,8,11,14,17-eicosapentaenoic acid
  • cis-5,8,11,14,17-EPA
  • cis-delta(5,8,11,14,17)-Eicosapentaenoic acid
  • Eicosapentaenoic acid
  • EPA
  • Icosapent
  • Icosapentaenoic acid
  • Icosapento
  • Icosapentum
  • Timnodonic acid
External IDs
  • EPA 45G

Pharmacology

Indication

EPA can be used for lowering elevated triglycerides in those who are hyperglyceridemic. In addition, EPA may play a therapeutic role in patients with cystic fibrosis by reducing disease severity and may play a similar role in type 2 diabetics in slowing the progression of diabetic nephropathy.

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Associated Therapies
Contraindications & Blackbox Warnings
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Pharmacodynamics

Eicosanoids are chemical messengers derived from 20-carbon polyunsaturated fatty acids that play critical roles in immune and inflammatory responses. Both 20-carbon omega-6 fatty acids (arachidonic acid) and 20-carbon omega-3 fatty acids (EPA) can be found in cell membranes. During an inflammatory response, arachidonic acid and EPA are metabolized by enzymes known as cyclooxygenases and lipoxygenases to form eicosanoids. Increasing omega-3 fatty acid intake increases the EPA content of cell membranes and decreases the arachidonic acid content, resulting in higher proportions of eicosanoids derived from EPA. Physiologic responses to arachidonic acid-derived eicosanoids differ from responses to EPA-derived eicosanoids. In general, eicosanoids derived from EPA are less potent inducers of inflammation, blood vessel constriction, and clotting than eicosanoids derived from arachidonic acid.

Mechanism of action

The anti-inflammatory, antithrombotic and immunomodulatory actions of EPA is probably due to its role in eicosanoid physiology and biochemistry. Most eicosanoids are produced by the metabolism of omega-3 fatty acids, specifically, arachidonic acid. These eicosanoids, leukotriene B4 (LTB4) and thromboxane A2 (TXA2) stimulate leukocyte chemotaxis, platelet aggregation and vasoconstriction. They are thrombogenic and artherogenic. On the other hand, EPA is metabolized to leukotriene B5 (LTB5) and thromboxane A3 (TXA3), which are eicosanoids that promote vasodilation, inhibit platelet aggregation and leukocyte chemotaxis and are anti-artherogenic and anti-thrombotic. The triglyceride-lowering effect of EPA results from inhibition of lipogenesis and stimulation of fatty acid oxidation. Fatty acid oxidation of EPA occurs mainly in the mitochondria. EPA is a substrate for Prostaglandin-endoperoxide synthase 1 and 2. It also appears to affect the function and bind to the Carbohydrate responsive element binding protein (ChREBP) and to a fatty acid receptor (G-coupled receptor) known as GP40.

TargetActionsOrganism
AProstaglandin G/H synthase 2
inhibitor
Humans
AProstaglandin G/H synthase 1
inhibitor
Humans
APeroxisome proliferator-activated receptor gamma
agonist
regulator
Humans
APeroxisome proliferator-activated receptor delta
agonist
Humans
AFree fatty acid receptor 1
agonist
Humans
ASodium/calcium exchanger 1
inhibitor
Humans
AFatty acid-binding protein, brain
agonist
Humans
UAcyl-CoA (8-3)-desaturase
agonist
Humans
ULong-chain-fatty-acid--CoA ligase 4
inducer
Humans
UTransient receptor potential cation channel subfamily V member 1
inducer
Humans
UPeroxisome proliferator-activated receptor alphaNot AvailableHumans
UPolyunsaturated fatty acid 5-lipoxygenase
substrate
Humans
Absorption

Not Available

Volume of distribution

Not Available

Protein binding

Not Available

Metabolism
Not Available
Route of elimination

Not Available

Half-life

Not Available

Clearance

Not Available

Adverse Effects
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Toxicity

Not Available

Pathways
PathwayCategory
Alpha Linolenic Acid and Linoleic Acid MetabolismMetabolic
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.
DrugInteraction
AbacavirIcosapent may decrease the excretion rate of Abacavir which could result in a higher serum level.
AbciximabThe risk or severity of bleeding and hemorrhage can be increased when Icosapent is combined with Abciximab.
AcebutololIcosapent may decrease the antihypertensive activities of Acebutolol.
AceclofenacThe risk or severity of adverse effects can be increased when Icosapent is combined with Aceclofenac.
AcemetacinThe risk or severity of adverse effects can be increased when Icosapent is combined with Acemetacin.
Food Interactions
No interactions found.

Products

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Product Ingredients
IngredientUNIICASInChI Key
Icosapent sodium5PXN91KPRO73167-03-0RBZYGQJEMWGTOH-RSDXMDNYSA-M
Over the Counter Products
NameDosageStrengthRouteLabellerMarketing StartMarketing EndRegionImage
GelGel3 mg/20gCutaneousShantou Youjia E-Commerce Co.,Ltd.2024-02-012024-12-31US flag
Mixture Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing EndRegionImage
ASPEN NUTRITION PRO OMEGA 3Icosapent (500 mg) + Doconexent (250 mg)CapsuleOralASPEN SARL SDN. BHD.2020-09-08Not applicableMalaysia flag
COLD WATER OMEGA-3 Salmon Oil 1000mg SoftgelIcosapent (90 mg) + Doconexent (110 mg)Capsule, gelatin coatedOralNEWAGE SDN. BHD.2020-09-08Not applicableMalaysia flag
FERIMAX FORT ÇİĞNEME TABLETİ, 30 ADETIcosapent (0.35 mg) + Ferric cation (100 mg)Tablet, chewableOralBİLİM İLAÇ SAN. VE TİC. A.Ş.2009-12-29Not applicableTurkey flag
FERRO SANOL COMP. KAPSÜL, 30 ADETIcosapent (0.5 mg) + Cyanocobalamin (2.5 µg) + Iron (30 mg)CapsuleOralADEKA İLAÇ SAN. VE TİC. A.Ş.1999-08-20Not applicableTurkey flag
FOLEX 308MG/350 MCG KAPLI TABLET, 100 ADETIcosapent (350 mcg) + Ferrous fumarate (308 mg)Tablet, film coatedOralALİ RAİF İLAÇ SAN. A.Ş.1999-12-09Not applicableTurkey flag
Unapproved/Other Products
NameIngredientsDosageRouteLabellerMarketing StartMarketing EndRegionImage
Animi-3Icosapent (35 mg/1) + Cholecalciferol (1000 [iU]/1) + Cyanocobalamin (500 ug/1) + Doconexent (250 mg/1) + Folic acid (1 mg/1) + Omega-3 fatty acids (500 mg/1) + Pyridoxine hydrochloride (12.5 mg/1) + Soy sterol (200 mg/1)CapsuleOralPbm Pharmaceuticals Inc.2011-06-01Not applicableUS flag
Animi-3 with Vitamin DIcosapent (35 mg/1) + Cholecalciferol (1000 [iU]/1) + Cyanocobalamin (500 ug/1) + Doconexent (250 mg/1) + Folic acid (1 mg/1) + Omega-3 fatty acids (500 mg/1) + Pyridoxine hydrochloride (12.5 mg/1) + Soy sterol (200 mg/1)CapsuleOralPbm Pharmaceuticals Inc.2011-06-01Not applicableUS flag
BP Vit 3Icosapent (35 mg/1) + Cyanocobalamin (500 ug/1) + Doconexent (350 mg/1) + Folic acid (1 mg/1) + Omega-3 fatty acids (500 mg/1) + Pyridoxine hydrochloride (12.5 mg/1) + beta-Sitosterol (200 mg/1)Capsule, coatedOralAcella Pharmaceuticals, LLC2009-04-17Not applicableUS flag
Cavan OneIcosapent (40 mg/1) + Calcium (150 mg/1) + Calcium ascorbate dihydrate (25 mg/1) + Cholecalciferol (170 [iU]/1) + DL-alpha tocopheryl acetate (30 [iU]/1) + Doconexent (260 mg/1) + Ferrous asparto glycinate (7 mg/1) + Folic acid (1 mg/1) + Iron (20 mg/1) + Linoleic acid (30 mg/1) + Pyridoxine hydrochloride (25 mg/1) + alpha-Linolenic acid (30 mg/1)Capsule, gelatin coatedOralSeton Pharmaceuticals2009-10-302011-11-27US flag
CitraNatal AssureIcosapent (0.75 mg/1) + Ascorbic acid (120 mg/1) + Calcium citrate tetrahydrate (125 mg/1) + Cholecalciferol (400 [iU]/1) + Copper (2 mg/1) + Doconexent (300 mg/1) + Docusate sodium (50 mg/1) + Folic acid (1 mg/1) + Iodine (150 ug/1) + Iron (35 mg/1) + Nicotinamide (20 mg/1) + Pyridoxine hydrochloride (25 mg/1) + Riboflavin (3.4 mg/1) + Thiamine chloride (3 mg/1) + Vitamin E (30 [iU]/1) + Zinc (25 mg/1)KitOralMission Pharmacal2008-11-19Not applicableUS flag

Categories

Drug Categories
Chemical TaxonomyProvided by Classyfire
Description
This compound belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms.
Kingdom
Organic compounds
Super Class
Lipids and lipid-like molecules
Class
Fatty Acyls
Sub Class
Fatty acids and conjugates
Direct Parent
Long-chain fatty acids
Alternative Parents
Unsaturated fatty acids / Straight chain fatty acids / Monocarboxylic acids and derivatives / Carboxylic acids / Organic oxides / Hydrocarbon derivatives / Carbonyl compounds
Substituents
Aliphatic acyclic compound / Carbonyl group / Carboxylic acid / Carboxylic acid derivative / Hydrocarbon derivative / Long-chain fatty acid / Monocarboxylic acid or derivatives / Organic oxide / Organic oxygen compound / Organooxygen compound
Molecular Framework
Aliphatic acyclic compounds
External Descriptors
omega-3 fatty acid, icosapentaenoic acid (CHEBI:28364) / Unsaturated fatty acids, Polyunsaturated fatty acids, Liner triterpenes (C06428) / Unsaturated fatty acids (LMFA01030759)
Affected organisms
  • Humans and other mammals

Chemical Identifiers

UNII
AAN7QOV9EA
CAS number
10417-94-4
InChI Key
JAZBEHYOTPTENJ-JLNKQSITSA-N
InChI
InChI=1S/C20H30O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h3-4,6-7,9-10,12-13,15-16H,2,5,8,11,14,17-19H2,1H3,(H,21,22)/b4-3-,7-6-,10-9-,13-12-,16-15-
IUPAC Name
(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoic acid
SMILES
CC\C=C/C\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O

References

Synthesis Reference

Akira Seto, Shoko Yamashita, "Method of preparing fatty acid composition containing high concentration of eicosapentaenoic acid." U.S. Patent US4615839, issued March, 1983.

US4615839
General References
  1. Bays HE, Ballantyne CM, Kastelein JJ, Isaacsohn JL, Braeckman RA, Soni PN: Eicosapentaenoic acid ethyl ester (AMR101) therapy in patients with very high triglyceride levels (from the Multi-center, plAcebo-controlled, Randomized, double-blINd, 12-week study with an open-label Extension [MARINE] trial). Am J Cardiol. 2011 Sep 1;108(5):682-90. doi: 10.1016/j.amjcard.2011.04.015. Epub 2011 Jun 16. [Article]
Human Metabolome Database
HMDB0001999
KEGG Drug
D08061
KEGG Compound
C06428
PubChem Compound
446284
PubChem Substance
46506267
ChemSpider
393682
BindingDB
50242349
RxNav
90
ChEBI
28364
ChEMBL
CHEMBL460026
ZINC
ZINC000004474603
Therapeutic Targets Database
DAP000969
PharmGKB
PA164746077
Guide to Pharmacology
GtP Drug Page
PDBe Ligand
EPA
RxList
RxList Drug Page
Drugs.com
Drugs.com Drug Page
PDRhealth
PDRhealth Drug Page
Wikipedia
Eicosapentaenoic_acid
PDB Entries
1igx / 3gwx / 3hs6 / 5m0o / 6lxa / 7bq4 / 7wom / 8id9
FDA label
Download (173 KB)
MSDS
Download (23.2 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 AvailableActive Not RecruitingPreventionAutoimmune Disorder / Knee Pain Chronic / Osteoarthritis (OA) / Rheumatoid Arthritis / Systemic Inflammatory Process1somestatusstop reasonjust information to hide
Not AvailableActive Not RecruitingPreventionType 2 Diabetes Mellitus1somestatusstop reasonjust information to hide
Not AvailableCompletedTreatmentCancer Cachexia (CC)1somestatusstop reasonjust information to hide
Not AvailableCompletedTreatmentMajor Depressive Disorder (MDD)1somestatusstop reasonjust information to hide
Not AvailableCompletedTreatmentMuscle Weakness1somestatusstop reasonjust information to hide

Pharmacoeconomics

Manufacturers
Not Available
Packagers
  • V Sab Medical Labs Inc.
Dosage Forms
FormRouteStrength
CapsuleOral
Capsule; kit; tablet, coatedOral
KitOral
TabletOral
Tablet, film coatedOral
Tablet5 mg
GelOral
GelCutaneous3 mg/20g
SolutionIntravenous
GelCutaneous
Capsule, gelatin coatedOral
Capsule, gelatin coated; kit; tabletOral
EmulsionParenteral
Injection, emulsionIntravenous
Tablet, coatedOral
Capsule, coated pelletsOral4000 mg/21
Capsule, liquid filledOral
Capsule, coatedOral
Powder, for solutionIntramuscular; Intravenous
Tablet, chewableOral
Prices
Not Available
Patents
Not Available

Properties

State
Liquid
Experimental Properties
PropertyValueSource
logP6.1Not Available
Predicted Properties
PropertyValueSource
Water Solubility0.000289 mg/mLALOGPS
logP6.53ALOGPS
logP6.23Chemaxon
logS-6ALOGPS
pKa (Strongest Acidic)4.82Chemaxon
Physiological Charge-1Chemaxon
Hydrogen Acceptor Count2Chemaxon
Hydrogen Donor Count1Chemaxon
Polar Surface Area37.3 Å2Chemaxon
Rotatable Bond Count13Chemaxon
Refractivity101.07 m3·mol-1Chemaxon
Polarizability35.93 Å3Chemaxon
Number of Rings0Chemaxon
Bioavailability0Chemaxon
Rule of FiveNoChemaxon
Ghose FilterNoChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon
Predicted ADMET Features
PropertyValueProbability
Human Intestinal Absorption+0.9896
Blood Brain Barrier+0.9314
Caco-2 permeable+0.7735
P-glycoprotein substrateNon-substrate0.6766
P-glycoprotein inhibitor INon-inhibitor0.9499
P-glycoprotein inhibitor IINon-inhibitor0.9025
Renal organic cation transporterNon-inhibitor0.9311
CYP450 2C9 substrateNon-substrate0.7735
CYP450 2D6 substrateNon-substrate0.9081
CYP450 3A4 substrateNon-substrate0.6884
CYP450 1A2 substrateInhibitor0.6915
CYP450 2C9 inhibitorNon-inhibitor0.8798
CYP450 2D6 inhibitorNon-inhibitor0.9631
CYP450 2C19 inhibitorNon-inhibitor0.9638
CYP450 3A4 inhibitorNon-inhibitor0.9465
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9426
Ames testNon AMES toxic0.9132
CarcinogenicityNon-carcinogens0.6502
BiodegradationReady biodegradable0.7808
Rat acute toxicity1.4499 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.8818
hERG inhibition (predictor II)Non-inhibitor0.9315
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
GC-MS Spectrum - GC-MS (1 TMS)GC-MSsplash10-004l-9700000000-09ea61ed836b88205028
Predicted GC-MS Spectrum - GC-MSPredicted GC-MSsplash10-004l-5490000000-ee15446245c5d0190ca2
GC-MS Spectrum - GC-MSGC-MSsplash10-004l-9700000000-09ea61ed836b88205028
Mass Spectrum (Electron Ionization)MSsplash10-05ox-9400000000-567226e93d65502352cd
LC-MS/MS Spectrum - LC-ESI-QQ , negativeLC-MS/MSsplash10-0udi-0029000000-02c67e3601df249d2476
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-000i-2972000000-a408e896590a67926bf8
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0009000000-8743d26da76bbb305c8f
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-001i-3940000000-317bf111d062c6bd721b
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0559000000-2e5d1d23f189a3499ee7
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-001l-9600000000-4f3127816a05073640a0
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-055o-1690000000-5f75d3114f5fc8973fcc
Predicted MS/MS Spectrum - 10V, Positive (Annotated)Predicted LC-MS/MSsplash10-000i-2972000000-a408e896590a67926bf8
Predicted MS/MS Spectrum - 10V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0009000000-8743d26da76bbb305c8f
Predicted MS/MS Spectrum - 20V, Negative (Annotated)Predicted LC-MS/MSsplash10-0udi-0559000000-2e5d1d23f189a3499ee7
Predicted MS/MS Spectrum - 20V, Positive (Annotated)Predicted LC-MS/MSsplash10-001i-3940000000-317bf111d062c6bd721b
Predicted MS/MS Spectrum - 40V, Negative (Annotated)Predicted LC-MS/MSsplash10-055o-1690000000-5f75d3114f5fc8973fcc
Predicted MS/MS Spectrum - 40V, Positive (Annotated)Predicted LC-MS/MSsplash10-001l-9600000000-4f3127816a05073640a0
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]-223.8799164
predicted
DarkChem Lite v0.1.0
[M-H]-181.5076221
predicted
DarkChem Standard v0.1.0
[M-H]-224.0545164
predicted
DarkChem Lite v0.1.0
[M-H]-224.3455164
predicted
DarkChem Lite v0.1.0
[M-H]-185.311
predicted
DeepCCS 1.0 (2019)
[M-H]-223.8799164
predicted
DarkChem Lite v0.1.0
[M-H]-181.5076221
predicted
DarkChem Standard v0.1.0
[M-H]-224.0545164
predicted
DarkChem Lite v0.1.0
[M-H]-224.3455164
predicted
DarkChem Lite v0.1.0
[M-H]-185.311
predicted
DeepCCS 1.0 (2019)
[M+H]+187.66899
predicted
DeepCCS 1.0 (2019)
[M+H]+187.66899
predicted
DeepCCS 1.0 (2019)
[M+Na]+193.76216
predicted
DeepCCS 1.0 (2019)
[M+Na]+193.76216
predicted
DeepCCS 1.0 (2019)

Targets

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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. Lee JY, Plakidas A, Lee WH, Heikkinen A, Chanmugam P, Bray G, Hwang DH: Differential modulation of Toll-like receptors by fatty acids: preferential inhibition by n-3 polyunsaturated fatty acids. J Lipid Res. 2003 Mar;44(3):479-86. Epub 2002 Dec 1. [Article]
  2. Ait-Said F, Elalamy I, Werts C, Gomard MT, Jacquemin C, Couetil JP, Hatmi M: Inhibition by eicosapentaenoic acid of IL-1beta-induced PGHS-2 expression in human microvascular endothelial cells: involvement of lipoxygenase-derived metabolites and p38 MAPK pathway. Biochim Biophys Acta. 2003 Feb 20;1631(1):77-84. [Article]
  3. Machida T, Hiramatsu M, Hamaue N, Minami M, Hirafuji M: Docosahexaenoic acid enhances cyclooxygenase-2 induction by facilitating p44/42, but not p38, mitogen-activated protein kinase activation in rat vascular smooth muscle cells. J Pharmacol Sci. 2005 Sep;99(1):113-6. Epub 2005 Sep 1. [Article]
  4. Das UN: Can COX-2 inhibitor-induced increase in cardiovascular disease risk be modified by essential fatty acids? J Assoc Physicians India. 2005 Jul;53:623-7. [Article]
  5. Chene G, Dubourdeau M, Balard P, Escoubet-Lozach L, Orfila C, Berry A, Bernad J, Aries MF, Charveron M, Pipy B: n-3 and n-6 polyunsaturated fatty acids induce the expression of COX-2 via PPARgamma activation in human keratinocyte HaCaT cells. Biochim Biophys Acta. 2007 May;1771(5):576-89. Epub 2007 Mar 16. [Article]
  6. Vecchio AJ, Simmons DM, Malkowski MG: Structural basis of fatty acid substrate binding to cyclooxygenase-2. J Biol Chem. 2010 Jul 16;285(29):22152-63. doi: 10.1074/jbc.M110.119867. Epub 2010 May 12. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
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. Malkowski MG, Thuresson ED, Lakkides KM, Rieke CJ, Micielli R, Smith WL, Garavito RM: Structure of eicosapentaenoic and linoleic acids in the cyclooxygenase site of prostaglandin endoperoxide H synthase-1. J Biol Chem. 2001 Oct 5;276(40):37547-55. Epub 2001 Jul 27. [Article]
  2. Machida T, Hiramatsu M, Hamaue N, Minami M, Hirafuji M: Docosahexaenoic acid enhances cyclooxygenase-2 induction by facilitating p44/42, but not p38, mitogen-activated protein kinase activation in rat vascular smooth muscle cells. J Pharmacol Sci. 2005 Sep;99(1):113-6. Epub 2005 Sep 1. [Article]
  3. Das UN: COX-2 inhibitors and metabolism of essential fatty acids. Med Sci Monit. 2005 Jul;11(7):RA233-7. Epub 2005 Jun 29. [Article]
  4. Das UN: Can COX-2 inhibitor-induced increase in cardiovascular disease risk be modified by essential fatty acids? J Assoc Physicians India. 2005 Jul;53:623-7. [Article]
  5. Yang P, Chan D, Felix E, Cartwright C, Menter DG, Madden T, Klein RD, Fischer SM, Newman RA: Formation and antiproliferative effect of prostaglandin E(3) from eicosapentaenoic acid in human lung cancer cells. J Lipid Res. 2004 Jun;45(6):1030-9. Epub 2004 Mar 1. [Article]
  6. Vecchio AJ, Simmons DM, Malkowski MG: Structural basis of fatty acid substrate binding to cyclooxygenase-2. J Biol Chem. 2010 Jul 16;285(29):22152-63. doi: 10.1074/jbc.M110.119867. Epub 2010 May 12. [Article]
  7. Lee JY, Plakidas A, Lee WH, Heikkinen A, Chanmugam P, Bray G, Hwang DH: Differential modulation of Toll-like receptors by fatty acids: preferential inhibition by n-3 polyunsaturated fatty acids. J Lipid Res. 2003 Mar;44(3):479-86. Epub 2002 Dec 1. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Agonist
Regulator
General Function
Nuclear receptor that binds peroxisome proliferators such as hypolipidemic drugs and fatty acids. Once activated by a ligand, the nuclear receptor binds to DNA specific PPAR response elements (PPRE) and modulates the transcription of its target genes, such as acyl-CoA oxidase. It therefore controls the peroxisomal beta-oxidation pathway of fatty acids. Key regulator of adipocyte differentiation and glucose homeostasis. ARF6 acts as a key regulator of the tissue-specific adipocyte P2 (aP2) enhancer. Acts as a critical regulator of gut homeostasis by suppressing NF-kappa-B-mediated pro-inflammatory responses. Plays a role in the regulation of cardiovascular circadian rhythms by regulating the transcription of BMAL1 in the blood vessels (By similarity)
Specific Function
alpha-actinin binding
Gene Name
PPARG
Uniprot ID
P37231
Uniprot Name
Peroxisome proliferator-activated receptor gamma
Molecular Weight
57619.58 Da
References
  1. Chambrier C, Bastard JP, Rieusset J, Chevillotte E, Bonnefont-Rousselot D, Therond P, Hainque B, Riou JP, Laville M, Vidal H: Eicosapentaenoic acid induces mRNA expression of peroxisome proliferator-activated receptor gamma. Obes Res. 2002 Jun;10(6):518-25. [Article]
  2. Selvaraj RK, Klasing KC: Lutein and eicosapentaenoic acid interact to modify iNOS mRNA levels through the PPARgamma/RXR pathway in chickens and HD11 cell lines. J Nutr. 2006 Jun;136(6):1610-6. [Article]
  3. Iwata Y, Miyamoto S, Takamura M, Yanagisawa H, Kasuya A: Interaction between peroxisome proliferator-activated receptor gamma and its agonists: docking study of oximes having 5-benzyl-2,4-thiazolidinedione. J Mol Graph Model. 2001;19(6):536-42, 598-600. [Article]
  4. Horia E, Watkins BA: Complementary actions of docosahexaenoic acid and genistein on COX-2, PGE2 and invasiveness in MDA-MB-231 breast cancer cells. Carcinogenesis. 2007 Apr;28(4):809-15. Epub 2006 Oct 19. [Article]
  5. Ramakers JD, Mensink RP, Schaart G, Plat J: Arachidonic acid but not eicosapentaenoic acid (EPA) and oleic acid activates NF-kappaB and elevates ICAM-1 expression in Caco-2 cells. Lipids. 2007 Aug;42(8):687-98. Epub 2007 Jul 3. [Article]
  6. Li H, Ruan XZ, Powis SH, Fernando R, Mon WY, Wheeler DC, Moorhead JF, Varghese Z: EPA and DHA reduce LPS-induced inflammation responses in HK-2 cells: evidence for a PPAR-gamma-dependent mechanism. Kidney Int. 2005 Mar;67(3):867-74. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Agonist
General Function
Ligand-activated transcription factor key mediator of energy metabolism in adipose tissues (PubMed:35675826). Receptor that binds peroxisome proliferators such as hypolipidemic drugs and fatty acids. Has a preference for poly-unsaturated fatty acids, such as gamma-linoleic acid and eicosapentanoic acid. Once activated by a ligand, the receptor binds to promoter elements of target genes. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as transcription activator for the acyl-CoA oxidase gene. Decreases expression of NPC1L1 once activated by a ligand
Specific Function
DNA binding
Gene Name
PPARD
Uniprot ID
Q03181
Uniprot Name
Peroxisome proliferator-activated receptor delta
Molecular Weight
49902.99 Da
References
  1. Iwata Y, Miyamoto S, Takamura M, Yanagisawa H, Kasuya A: Interaction between peroxisome proliferator-activated receptor gamma and its agonists: docking study of oximes having 5-benzyl-2,4-thiazolidinedione. J Mol Graph Model. 2001;19(6):536-42, 598-600. [Article]
  2. Xu HE, Lambert MH, Montana VG, Parks DJ, Blanchard SG, Brown PJ, Sternbach DD, Lehmann JM, Wisely GB, Willson TM, Kliewer SA, Milburn MV: Molecular recognition of fatty acids by peroxisome proliferator-activated receptors. Mol Cell. 1999 Mar;3(3):397-403. [Article]
  3. Kondo H, Misaki R, Gelman L, Watabe S: Ligand-dependent transcriptional activities of four torafugu pufferfish Takifugu rubripes peroxisome proliferator-activated receptors. Gen Comp Endocrinol. 2007 Oct-Dec;154(1-3):120-7. Epub 2007 Jun 12. [Article]
  4. Inoue I, Shino K, Noji S, Awata T, Katayama S: Expression of peroxisome proliferator-activated receptor alpha (PPAR alpha) in primary cultures of human vascular endothelial cells. Biochem Biophys Res Commun. 1998 May 19;246(2):370-4. [Article]
  5. Caldari-Torres C, Rodriguez-Sallaberry C, Greene ES, Badinga L: Differential effects of n-3 and n-6 fatty acids on prostaglandin F2alpha production by bovine endometrial cells. J Dairy Sci. 2006 Mar;89(3):971-7. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Agonist
General Function
G-protein coupled receptor for medium and long chain saturated and unsaturated fatty acids that plays an important role in glucose homeostasis. Fatty acid binding increases glucose-stimulated insulin secretion, and may also enhance the secretion of glucagon-like peptide 1 (GLP-1). May also play a role in bone homeostasis; receptor signaling activates pathways that inhibit osteoclast differentiation (By similarity). Ligand binding leads to a conformation change that triggers signaling via G-proteins that activate phospholipase C, leading to an increase of the intracellular calcium concentration. Seems to act through a G(q) and G(i)-mediated pathway. Mediates the anti-inflammatory effects of omega-3 polyunsaturated fatty acids (PUFAs) via inhibition of NLRP3 inflammasome activation
Specific Function
bioactive lipid receptor activity
Gene Name
FFAR1
Uniprot ID
O14842
Uniprot Name
Free fatty acid receptor 1
Molecular Weight
31456.645 Da
References
  1. Itoh Y, Hinuma S: GPR40, a free fatty acid receptor on pancreatic beta cells, regulates insulin secretion. Hepatol Res. 2005 Oct;33(2):171-3. Epub 2005 Oct 6. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Inhibitor
General Function
Mediates the exchange of one Ca(2+) ion against three to four Na(+) ions across the cell membrane, and thereby contributes to the regulation of cytoplasmic Ca(2+) levels and Ca(2+)-dependent cellular processes (PubMed:11241183, PubMed:1374913, PubMed:1476165). Contributes to Ca(2+) transport during excitation-contraction coupling in muscle (PubMed:11241183, PubMed:1374913, PubMed:1476165). In a first phase, voltage-gated channels mediate the rapid increase of cytoplasmic Ca(2+) levels due to release of Ca(2+) stores from the endoplasmic reticulum (PubMed:11241183, PubMed:1374913, PubMed:1476165). SLC8A1 mediates the export of Ca(2+) from the cell during the next phase, so that cytoplasmic Ca(2+) levels rapidly return to baseline (PubMed:11241183, PubMed:1374913, PubMed:1476165). Required for normal embryonic heart development and the onset of heart contractions (By similarity)
Specific Function
ankyrin binding
Gene Name
SLC8A1
Uniprot ID
P32418
Uniprot Name
Sodium/calcium exchanger 1
Molecular Weight
108546.06 Da
References
  1. Xiao YF, Ke Q, Chen Y, Morgan JP, Leaf A: Inhibitory effect of n-3 fish oil fatty acids on cardiac Na+/Ca2+ exchange currents in HEK293t cells. Biochem Biophys Res Commun. 2004 Aug 13;321(1):116-23. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Yes
Actions
Agonist
General Function
B-FABP could be involved in the transport of a so far unknown hydrophobic ligand with potential morphogenic activity during CNS development. It is required for the establishment of the radial glial fiber system in developing brain, a system that is necessary for the migration of immature neurons to establish cortical layers (By similarity)
Specific Function
fatty acid binding
Gene Name
FABP7
Uniprot ID
O15540
Uniprot Name
Fatty acid-binding protein, brain
Molecular Weight
14888.855 Da
References
  1. Balendiran GK, Schnutgen F, Scapin G, Borchers T, Xhong N, Lim K, Godbout R, Spener F, Sacchettini JC: Crystal structure and thermodynamic analysis of human brain fatty acid-binding protein. J Biol Chem. 2000 Sep 1;275(35):27045-54. [Article]
  2. Liu YE, Pu W, Wang J, Kang JX, Shi YE: Activation of Stat5 and induction of a pregnancy-like mammary gland differentiation by eicosapentaenoic and docosapentaenoic omega-3 fatty acids. FEBS J. 2007 Jul;274(13):3351-62. Epub 2007 Jun 5. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Agonist
General Function
Acts as a front-end fatty acyl-coenzyme A (CoA) desaturase that introduces a cis double bond at carbon 5 located between a preexisting double bond and the carboxyl end of the fatty acyl chain. Involved in biosynthesis of highly unsaturated fatty acids (HUFA) from the essential polyunsaturated fatty acids (PUFA) linoleic acid (LA) (18:2n-6) and alpha-linolenic acid (ALA) (18:3n-3) precursors. Specifically, desaturates dihomo-gamma-linoleoate (DGLA) (20:3n-6) and eicosatetraenoate (ETA) (20:4n-3) to generate arachidonate (AA) (20:4n-6) and eicosapentaenoate (EPA) (20:5n-3), respectively (PubMed:10601301, PubMed:10769175). As a rate limiting enzyme for DGLA (20:3n-6) and AA (20:4n-6)-derived eicosanoid biosynthesis, controls the metabolism of inflammatory lipids like prostaglandin E2, critical for efficient acute inflammatory response and maintenance of epithelium homeostasis. Contributes to membrane phospholipid biosynthesis by providing AA (20:4n-6) as a major acyl chain esterified into phospholipids. In particular, regulates phosphatidylinositol-4,5-bisphosphate levels, modulating inflammatory cytokine production in T-cells (By similarity). Also desaturates (11E)-octadecenoate (trans-vaccenoate)(18:1n-9), a metabolite in the biohydrogenation pathway of LA (18:2n-6) (By similarity)
Specific Function
acyl-CoA delta5-desaturase activity
Gene Name
FADS1
Uniprot ID
O60427
Uniprot Name
Acyl-CoA (8-3)-desaturase
Molecular Weight
51963.945 Da
References
  1. Barham JB, Edens MB, Fonteh AN, Johnson MM, Easter L, Chilton FH: Addition of eicosapentaenoic acid to gamma-linolenic acid-supplemented diets prevents serum arachidonic acid accumulation in humans. J Nutr. 2000 Aug;130(8):1925-31. [Article]
  2. Navarro E, Esteve M, Olive A, Klaassen J, Cabre E, Tena X, Fernandez-Banares F, Pastor C, Gassull MA: Abnormal fatty acid pattern in rheumatoid arthritis. A rationale for treatment with marine and botanical lipids. J Rheumatol. 2000 Feb;27(2):298-303. [Article]
  3. Engler MM, Bellenger-Germain SH, Engler MB, Narce MM, Poisson JP: Dietary docosahexaenoic acid affects stearic acid desaturation in spontaneously hypertensive rats. Lipids. 2000 Sep;35(9):1011-5. [Article]
  4. Chavali SR, Zhong WW, Forse RA: Dietary alpha-linolenic acid increases TNF-alpha, and decreases IL-6, IL-10 in response to LPS: effects of sesamin on the delta-5 desaturation of omega6 and omega3 fatty acids in mice. Prostaglandins Leukot Essent Fatty Acids. 1998 Mar;58(3):185-91. [Article]
  5. Watts JL, Browse J: Isolation and characterization of a Delta 5-fatty acid desaturase from Caenorhabditis elegans. Arch Biochem Biophys. 1999 Feb 1;362(1):175-82. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inducer
General Function
Catalyzes the conversion of long-chain fatty acids to their active form acyl-CoA for both synthesis of cellular lipids, and degradation via beta-oxidation (PubMed:21242590, PubMed:22633490, PubMed:24269233). Preferentially activates arachidonate and eicosapentaenoate as substrates (PubMed:21242590). Preferentially activates 8,9-EET > 14,15-EET > 5,6-EET > 11,12-EET. Modulates glucose-stimulated insulin secretion by regulating the levels of unesterified EETs (By similarity). Modulates prostaglandin E2 secretion (PubMed:21242590)
Specific Function
arachidonate-CoA ligase activity
Gene Name
ACSL4
Uniprot ID
O60488
Uniprot Name
Long-chain-fatty-acid--CoA ligase 4
Molecular Weight
79187.38 Da
References
  1. Heimli H, Hollung K, Drevon CA: Eicosapentaenoic acid-induced apoptosis depends on acyl CoA-synthetase. Lipids. 2003 Mar;38(3):263-8. [Article]
  2. Covault J, Pettinati H, Moak D, Mueller T, Kranzler HR: Association of a long-chain fatty acid-CoA ligase 4 gene polymorphism with depression and with enhanced niacin-induced dermal erythema. Am J Med Genet B Neuropsychiatr Genet. 2004 May 15;127B(1):42-7. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Inducer
General Function
Ligand-activated non-selective calcium permeant cation channel involved in detection of noxious chemical and thermal stimuli. Seems to mediate proton influx and may be involved in intracellular acidosis in nociceptive neurons. Involved in mediation of inflammatory pain and hyperalgesia. Sensitized by a phosphatidylinositol second messenger system activated by receptor tyrosine kinases, which involves PKC isozymes and PCL. Activation by vanilloids, like capsaicin, and temperatures higher than 42 degrees Celsius, exhibits a time- and Ca(2+)-dependent outward rectification, followed by a long-lasting refractory state. Mild extracellular acidic pH (6.5) potentiates channel activation by noxious heat and vanilloids, whereas acidic conditions (pH <6) directly activate the channel. Can be activated by endogenous compounds, including 12-hydroperoxytetraenoic acid and bradykinin. Acts as ionotropic endocannabinoid receptor with central neuromodulatory effects. Triggers a form of long-term depression (TRPV1-LTD) mediated by the endocannabinoid anandamine in the hippocampus and nucleus accumbens by affecting AMPA receptors endocytosis
Specific Function
ATP binding
Gene Name
TRPV1
Uniprot ID
Q8NER1
Uniprot Name
Transient receptor potential cation channel subfamily V member 1
Molecular Weight
94955.33 Da
References
  1. Matta JA, Miyares RL, Ahern GP: TRPV1 is a novel target for omega-3 polyunsaturated fatty acids. J Physiol. 2007 Jan 15;578(Pt 2):397-411. Epub 2006 Oct 12. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
General Function
Ligand-activated transcription factor. Key regulator of lipid metabolism. Activated by the endogenous ligand 1-palmitoyl-2-oleoyl-sn-glycerol-3-phosphocholine (16:0/18:1-GPC). Activated by oleylethanolamide, a naturally occurring lipid that regulates satiety. Receptor for peroxisome proliferators such as hypolipidemic drugs and fatty acids. Regulates the peroxisomal beta-oxidation pathway of fatty acids. Functions as a transcription activator for the ACOX1 and P450 genes. Transactivation activity requires heterodimerization with RXRA and is antagonized by NR2C2. May be required for the propagation of clock information to metabolic pathways regulated by PER2
Specific Function
DNA binding
Gene Name
PPARA
Uniprot ID
Q07869
Uniprot Name
Peroxisome proliferator-activated receptor alpha
Molecular Weight
52224.595 Da
References
  1. Murakami K, Ide T, Suzuki M, Mochizuki T, Kadowaki T: Evidence for direct binding of fatty acids and eicosanoids to human peroxisome proliferators-activated receptor alpha. Biochem Biophys Res Commun. 1999 Jul 14;260(3):609-13. [Article]
Kind
Protein
Organism
Humans
Pharmacological action
Unknown
Actions
Substrate
General Function
Catalyzes the oxygenation of arachidonate ((5Z,8Z,11Z,14Z)-eicosatetraenoate) to 5-hydroperoxyeicosatetraenoate (5-HPETE) followed by the dehydration to 5,6- epoxyeicosatetraenoate (Leukotriene A4/LTA4), the first two steps in the biosynthesis of leukotrienes, which are potent mediators of inflammation (PubMed:19022417, PubMed:21233389, PubMed:22516296, PubMed:23246375, PubMed:24282679, PubMed:24893149, PubMed:31664810, PubMed:8615788, PubMed:8631361). Also catalyzes the oxygenation of arachidonate into 8-hydroperoxyicosatetraenoate (8-HPETE) and 12-hydroperoxyicosatetraenoate (12-HPETE) (PubMed:23246375). Displays lipoxin synthase activity being able to convert (15S)-HETE into a conjugate tetraene (PubMed:31664810). Although arachidonate is the preferred substrate, this enzyme can also metabolize oxidized fatty acids derived from arachidonate such as (15S)-HETE, eicosapentaenoate (EPA) such as (18R)- and (18S)-HEPE or docosahexaenoate (DHA) which lead to the formation of specialized pro-resolving mediators (SPM) lipoxin and resolvins E and D respectively, therefore it participates in anti-inflammatory responses (PubMed:17114001, PubMed:21206090, PubMed:31664810, PubMed:32404334, PubMed:8615788). Oxidation of DHA directly inhibits endothelial cell proliferation and sprouting angiogenesis via peroxisome proliferator-activated receptor gamma (PPARgamma) (By similarity). It does not catalyze the oxygenation of linoleic acid and does not convert (5S)-HETE to lipoxin isomers (PubMed:31664810). In addition to inflammatory processes, it participates in dendritic cell migration, wound healing through an antioxidant mechanism based on heme oxygenase-1 (HO-1) regulation expression, monocyte adhesion to the endothelium via ITGAM expression on monocytes (By similarity). Moreover, it helps establish an adaptive humoral immunity by regulating primary resting B cells and follicular helper T cells and participates in the CD40-induced production of reactive oxygen species (ROS) after CD40 ligation in B cells through interaction with PIK3R1 that bridges ALOX5 with CD40 (PubMed:21200133). May also play a role in glucose homeostasis, regulation of insulin secretion and palmitic acid-induced insulin resistance via AMPK (By similarity). Can regulate bone mineralization and fat cell differentiation increases in induced pluripotent stem cells (By similarity)
Specific Function
arachidonate 12(S)-lipoxygenase activity
Gene Name
ALOX5
Uniprot ID
P09917
Uniprot Name
Polyunsaturated fatty acid 5-lipoxygenase
Molecular Weight
77982.595 Da
References
  1. Austen KF: The role of arachidonic acid metabolites in local and systemic inflammatory processes. Drugs. 1987;33 Suppl 1:10-7. doi: 10.2165/00003495-198700331-00004. [Article]

Carriers

Kind
Protein
Organism
Humans
Pharmacological action
No
Actions
Binder
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. Pavicevic ID, Jovanovic VB, Takic MM, Penezic AZ, Acimovic JM, Mandic LM: Fatty acids binding to human serum albumin: Changes of reactivity and glycation level of Cysteine-34 free thiol group with methylglyoxal. Chem Biol Interact. 2014 Dec 5;224:42-50. doi: 10.1016/j.cbi.2014.10.008. Epub 2014 Oct 17. [Article]

Drug created at June 13, 2005 13:24 / Updated at October 04, 2024 01:08