ChemFOnt: Showing chemical card for Prostaglandin H2 (CFc000001068)

Record Information

Version

1.0

Creation Date

2022-08-28 10:25:12 UTC

Update Date

2022-09-13 18:45:37 UTC

Chemfont ID

CFc000001068

Molecule Identification

Common Name

Prostaglandin H2

Definition

Prostaglandin H2 (PGH2) is the first intermediate in the biosynthesis of all prostaglandins. Prostaglandins are synthesized from arachidonic acid by the enzyme COX-1 and COX-2, which are also called PGH synthase 1 and 2. These enzymes generate a reactive intermediate PGH2 which has a reasonably long half-life (90-100 s) but is highly lipophilic. PGH2 is converted into the biologically active prostaglandins by prostaglandin isomerases, yielding PGE2, PGD2, and PGF2, or by thromboxane synthase to make TXA2 or by prostacyclin synthase to make PGI2. Most nonsteroidal anti-inflammatory drugs such as aspirin and indomethacin inhibit both PGH synthase 1 and 2. A key feature for eicosanoid transcellular biosynthesis is the export of PGH2 or LTA4 from the donor cell as well as the uptake of these reactive intermediates by the acceptor cell. Very little is known about either process despite the demonstrated importance of both events. In cells, PGH2 rearranges nonenzymatically to LGs even in the presence of enzymes that use PGH2 as a substrate. When platelets form thromboxane A2 (TXA2) from endogenous arachidonic acid (AA), PGH2 reaches concentrations very similar to those of TXA2 and high enough to produce strong platelet activation. Therefore, platelet activation by TXA2 appears to go along with an activation by PGH2. The agonism of PGH2 is limited by the formation of inhibitory prostaglandins, especially PGD2 at higher concentrations. That is why thromboxane synthase inhibitors in PRP and at a physiological HSA concentration do not augment platelet activation (PMID: 2798452 , 15650407 , 16968946 ). Prostaglandins are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs), and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes), and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent and are able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis through receptor-mediated G-protein linked signalling pathways.

Structure

MOL SDF PDB SMILES InChI

Synonyms

Not Available

Chemical Formula

C₂₀H₃₂O₅

Average Molecular Weight

352.4651

Monoisotopic Molecular Weight

352.224974134

IUPAC Name

7-[(1R,4S,5R,6R)-6-[(3S)-3-hydroxyoct-1-en-1-yl]-2,3-dioxabicyclo[2.2.1]heptan-5-yl]hept-5-enoic acid

Traditional Name

7-[(1R,4S,5R,6R)-6-[(3S)-3-hydroxyoct-1-en-1-yl]-2,3-dioxabicyclo[2.2.1]heptan-5-yl]hept-5-enoic acid

CAS Registry Number

42935-17-1

SMILES

[H][C@](O)(CCCCC)C=C[C@@]1([H])[C@@]2([H])C[C@]([H])(OO2)[C@]1([H])CC=CCCCC(O)=O

InChI Identifier

InChI=1S/C20H32O5/c1-2-3-6-9-15(21)12-13-17-16(18-14-19(17)25-24-18)10-7-4-5-8-11-20(22)23/h4,7,12-13,15-19,21H,2-3,5-6,8-11,14H2,1H3,(H,22,23)/t15-,16+,17+,18-,19+/m0/s1

InChI Key

YIBNHAJFJUQSRA-BRIYLRKRSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as prostaglandins and related compounds. These are unsaturated carboxylic acids consisting of a 20 carbon skeleton that also contains a five member ring, and are based upon the fatty acid arachidonic acid.

Kingdom

Organic compounds

Super Class

Lipids and lipid-like molecules

Class

Fatty Acyls

Sub Class

Eicosanoids

Direct Parent

Prostaglandins and related compounds

Alternative Parents

Substituents

Prostaglandin skeleton
Long-chain fatty acid
Hydroxy fatty acid
Heterocyclic fatty acid
Fatty acid
Unsaturated fatty acid
Ortho-dioxane
Ortho-dioxolane
Dialkyl peroxide
Secondary alcohol
Oxacycle
Organoheterocyclic compound
Monocarboxylic acid or derivatives
Carboxylic acid
Carboxylic acid derivative
Organic oxygen compound
Organic oxide
Hydrocarbon derivative
Organooxygen compound
Carbonyl group
Alcohol
Aliphatic heteropolycyclic compound

Molecular Framework

Aliphatic heteropolycyclic compounds

External Descriptors

Not Available

Functional Ontology

Not Available

Platelet (HMDB: HMDB0001381)

Cellular substructure

Organelle

Endoplasmic reticulum (HMDB: HMDB0001381)

Source

Exogenous

Exogenous (HMDB: HMDB0001381)

Endogenous

Endogenous (HMDB: HMDB0001381)

Process

Naturally occurring process

Biological process

Biochemical pathway

Disease pathway

Leukotriene C4 Synthesis Deficiency (PathBank: SMP0120510)

Metabolic pathway

Arachidonic Acid Metabolism (PathBank: SMP0087315)

Drug action pathway

Piroxicam Action Pathway (PathBank: SMP0000077)
Acetylsalicylic Acid Action Pathway (PathBank: SMP0000083)
Etodolac Action Pathway (PathBank: SMP0000084)
Ketoprofen Action Pathway (PathBank: SMP0000085)
Ibuprofen Action Pathway (PathBank: SMP0000086)
Rofecoxib Action Pathway (PathBank: SMP0000087)
Diclofenac Action Pathway (PathBank: SMP0000093)
Sulindac Action Pathway (PathBank: SMP0000094)
Celecoxib Action Pathway (PathBank: SMP0000096)
Ketorolac Action Pathway (PathBank: SMP0000098)
Suprofen Action Pathway (PathBank: SMP0000101)
Bromfenac Action Pathway (PathBank: SMP0000102)
Indomethacin Action Pathway (PathBank: SMP0000104)
Mefenamic Acid Action Pathway (PathBank: SMP0000109)
Oxaprozin Action Pathway (PathBank: SMP0000113)
Nabumetone Action Pathway (PathBank: SMP0000114)
Naproxen Action Pathway (PathBank: SMP0000120)
Diflunisal Action Pathway (PathBank: SMP0000289)
Meloxicam Action Pathway (PathBank: SMP0000106)
Valdecoxib Action Pathway (PathBank: SMP0000116)
Antipyrine Action Pathway (PathBank: SMP0000692)
Antrafenine Action Pathway (PathBank: SMP0000693)
Carprofen Action Pathway (PathBank: SMP0000694)
Etoricoxib Action Pathway (PathBank: SMP0000695)
Fenoprofen Action Pathway (PathBank: SMP0000696)
Flurbiprofen Action Pathway (PathBank: SMP0000697)
Magnesium salicylate Action Pathway (PathBank: SMP0000698)
Lumiracoxib Action Pathway (PathBank: SMP0000699)
Lornoxicam Action Pathway (PathBank: SMP0000700)
Phenylbutazone Action Pathway (PathBank: SMP0000701)
Nepafenac Action Pathway (PathBank: SMP0000702)
Trisalicylate-choline Action Pathway (PathBank: SMP0000703)
Tolmetin Action Pathway (PathBank: SMP0000704)
Tiaprofenic Acid Action Pathway (PathBank: SMP0000705)
Tenoxicam Action Pathway (PathBank: SMP0000706)
Salsalate Action Pathway (PathBank: SMP0000707)
Salicylate-sodium Action Pathway (PathBank: SMP0000708)
Salicylic Acid Action Pathway (PathBank: SMP0000709)
Acetaminophen Action Pathway (PathBank: SMP0000710)

Role

Not Available

Physical Properties

Predicted Properties

Property	Value	Source
Water Solubility	0.034 g/L	ALOGPS
logP	4.27	ALOGPS
logP	3.96	ChemAxon
logS	-4	ALOGPS
pKa (Strongest Acidic)	4.36	ChemAxon
pKa (Strongest Basic)	-1.6	ChemAxon
Physiological Charge	-1	ChemAxon
Hydrogen Acceptor Count	5	ChemAxon
Hydrogen Donor Count	2	ChemAxon
Polar Surface Area	75.99 Å²	ChemAxon
Rotatable Bond Count	12	ChemAxon
Refractivity	98.04 m³·mol⁻¹	ChemAxon
Polarizability	40.4 Å³	ChemAxon
Number of Rings	2	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	Yes	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

External Links

HMDB ID

Not Available

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FooDB ID

FDB022592

KNApSAcK ID

Not Available

Chemspider ID

Not Available

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Prostaglandin H2

METLIN ID

Not Available

PubChem Compound

107746

PDB ID

Not Available

ChEBI ID

Not Available

Food Biomarker Ontology

Not Available

References

Synthesis Reference

Not Available

Showing chemical card for Prostaglandin H2 (CFc000001068)

MOL for CFc000001068 (Prostaglandin H2)

3D MOL for CFc000001068 (Prostaglandin H2)

3D SDF for CFc000001068 (Prostaglandin H2)

3D-SDF for CFc000001068 (Prostaglandin H2)

PDB for CFc000001068 (Prostaglandin H2)

3D PDB for CFc000001068 (Prostaglandin H2)

SMILES for CFc000001068 (Prostaglandin H2)

INCHI for CFc000001068 (Prostaglandin H2)

Structure for CFc000001068 (Prostaglandin H2)

3D Structure for CFc000001068 (Prostaglandin H2)