PAF

Extracellular signaling lipid; ligand for G protein-coupled platelet activating factor (PAF) receptors. Induces inflammation by increasing vascular permeability; activates MAP kinase (MAPK) and MAP kinase kinase (MAPKK) in CHO cells. PAF is a substrate for lysophospholipase II and for PAF-Acetyl hydrolase

General

Type : Natural, Trimethylammonium, Ammonium, Water-insoluble medium and long chain ester, Choline ester, Not AlphaBeta Hydrolase target, Phosphatidylcholine

Chemical_Nomenclature : [(2R)-2-acetyloxy-3-hexadecoxypropyl] 2-(trimethylazaniumyl)ethyl phosphate

Canonical SMILES : CCCCCCCCCCCCCCCCOCC(COP(=O)([O-])OCC[N+](C)(C)C)OC(=O)C

InChI : InChI=1S\/C26H54NO7P\/c1-6-7-8-9-10-11-12-13-14-15-16-17-18-19-21-31-23-26(34-25(2)28)24-33-35(29,30)32-22-20-27(3,4)5\/h26H,6-24H2,1-5H3\/t26-\/m1\/s1

InChIKey : HVAUUPRFYPCOCA-AREMUKBSSA-N

Other name(s) : Platelet activating factor  ||  Platelet-activating factor  ||  C16-PAF  ||  1-O-Hexadecyl-2-acetyl-sn-glycero-3-phosphocholine  ||  Hag-PC  ||  APRL  ||  1-O-alkyl-2-acetyl-sn-glycero-3-phosphocholine


MW : 523.68

Formula : C26H54NO7P

CAS_number : 74389-68-7

PubChem : 108156

UniChem : HVAUUPRFYPCOCA-AREMUKBSSA-N

Target

Structures : No structure

Families : PAF-Acetylhydrolase, LYsophospholipase_carboxylesterase

References (4)

Title : The Platelet Activating Factor-Platelet Activating Factor Acetylhydrolase Enzyme Axis in Anaphylaxis: Current Evidence and Future Perspectives - Vignini_2026_Int.J.Mol.Sci_27_7783
Author(s) : Vignini A , Costanzo S , Martini M , Alia S , Membrino V , Di Crescenzo T , Buti E , Bilo MB
Ref : Int J Mol Sci , 27 :7783 , 2026
Abstract :
PubMedSearch : Vignini_2026_Int.J.Mol.Sci_27_7783
PubMedID: 42737680
Gene_locus related to this paper: human-PAFAH2 , human-PLA2G7

Title : cDNA cloning and expression of intracellular platelet-activating factor (PAF) acetylhydrolase II. Its homology with plasma PAF acetylhydrolase - Hattori_1996_J.Biol.Chem_271_33032
Author(s) : Hattori K , Adachi H , Matsuzawa A , Yamamoto K , Tsujimoto M , Aoki J , Hattori M , Arai H , Inoue K
Ref : Journal of Biological Chemistry , 271 :33032 , 1996
Abstract :
PubMedSearch : Hattori_1996_J.Biol.Chem_271_33032
PubMedID: 8955149
Gene_locus related to this paper: bovin-paf2 , human-PAFAH2

Title : Anti-inflammatory properties of a platelet-activating factor acetylhydrolase - Tjoelker_1995_Nature_374_549
Author(s) : Tjoelker LW , Wilder C , Eberhardt C , Stafforini DM
Ref : Nature , 374 :549 , 1995
Abstract :
PubMedSearch : Tjoelker_1995_Nature_374_549
PubMedID: 7700381
Gene_locus related to this paper: bovin-pafa , canfa-pafa , chick-pafa , human-PLA2G7 , mouse-pafa

Title : Catabolism of platelet-activating factor and its acyl analog. Differentiation of the activities of lysophospholipase and platelet- activating-factor acetylhydrolase - Aarsman_1991_Eur.J.Biochem_200_187
Author(s) : Aarsman AJ , Neys FW , Van den Bosch H
Ref : European Journal of Biochemistry , 200 :187 , 1991
Abstract :
PubMedSearch : Aarsman_1991_Eur.J.Biochem_200_187
PubMedID: 1879423