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Methoxy arachidonyl fluorophosphonate
 
 
Names
  
Preferred IUPAC name 
Methyl [(5Z ,8Z ,11Z ,14Z )-icosa-5,8,11,14-tetraen-1-yl]phosphonofluoridate
 
Other names
MAFP
  
Identifiers
  
 
  
 
 
ChEMBL 
 
ChemSpider 
 
EC Number  
 
 
InChI=1S/C21H36FO2P/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22,23)24-2/h7-8,10-11,13-14,16-17H,3-6,9,12,15,18-21H2,1-2H3/b8-7-,11-10-,14-13-,17-16-
 Y  Key: KWKZCGMJGHHOKJ-ZKWNWVNESA-N
 Y   
 
FP(=O)(OC)CCCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC
 
 
Properties
  
 
C21 H36 FO2 P 
  
Molar mass 
370.5   
  
Except where otherwise noted, data are given for materials in their 
standard state  (at 25 °C [77 °F], 100 kPa).
 
Chemical compound
Methoxy arachidonyl fluorophosphonate , commonly referred as MAFP , is an irreversible active site-directed enzyme inhibitor  that inhibits nearly all serine hydrolases  and serine proteases .[ 1] phospholipase A2  and fatty acid amide hydrolase  with special potency, displaying IC50   values in the low-nanomolar range. In addition, it binds to the CB1  receptor  in rat brain membrane preparations (IC50   = 20 nM),[ 2] agonize  or antagonize  the receptor,[ 3] [ 4] 
DIFP  – diisopropyl fluorophosphate, a related inhibitorIDFP  – isopropyl dodecylfluorophosphonate, another related inhibitor with selectivity for FAAH and MAGLActivity-based probes 
^ Hoover HS, Blankman JL, Niessen S, Cravatt BF (July 2008). "Selectivity of inhibitors of endocannabinoid biosynthesis evaluated by activity-based protein profiling" . Bioorg. Med. Chem. Lett . 18  (22): 5838– 41. doi :10.1016/j.bmcl.2008.06.091 . PMC  2634297 PMID  18657971 . ^ Deutsch DG, Omeir R, Arreaza G, Salehani D, Prestwich GD, Huang Z, Howlett A (1997). "Methyl arachidonyl fluorophosphonate: a potent irreversible inhibitor of anandamide amidase". Biochem. Pharmacol . 53  (3): 255– 60. doi :10.1016/s0006-2952(96)00830-1 . PMID  9065728 . ^ Savinainen JR, Saario SM, Niemi R, Järvinen T, Laitinen JT (2003). "An optimized approach to study endocannabinoid signaling: evidence against constitutive activity of rat brain adenosine A1 and cannabinoid CB1 receptors" . Br. J. Pharmacol . 140  (8): 1451– 9. doi :10.1038/sj.bjp.0705577 . PMC  1574161 PMID  14623770 . ^ Martin BR, Beletskaya I, Patrick G, Jefferson R, Winckler R, Deutsch DG, Di Marzo V, Dasse O, Mahadevan A, Razdan RK (Sep 2000). "Cannabinoid properties of methylfluorophosphonate analogs". J Pharmacol Exp Ther . 294  (3): 1209– 18. PMID  10945879 .   
Receptor (ligands ) 
DP (D2 ) Tooltip Prostaglandin D2 receptor 
DP1  Tooltip Prostaglandin D2 receptor 1 DP2  Tooltip Prostaglandin D2 receptor 2 
EP (E2 ) Tooltip Prostaglandin E2 receptor 
EP1  Tooltip Prostaglandin EP1 receptor EP2  Tooltip Prostaglandin EP2 receptor EP3  Tooltip Prostaglandin EP3 receptor EP4  Tooltip Prostaglandin EP4 receptor Unsorted 
FP (F2α ) Tooltip Prostaglandin F receptor IP (I2 ) Tooltip Prostacyclin receptor TP (TXA2 ) Tooltip Thromboxane receptor Unsorted 
Enzyme (inhibitors ) 
COX PTGS )PGD2 S Tooltip Prostaglandin D synthase PGES Tooltip Prostaglandin E synthase PGFS Tooltip Prostaglandin F synthase PGI2 S Tooltip Prostacyclin synthase TXAS Tooltip Thromboxane A synthase 
Others 
Receptor (ligands ) 
BLT Tooltip Leukotriene B4 receptor 
BLT1  Tooltip Leukotriene B4 receptor 1 BLT2  Tooltip Leukotriene B4 receptor 2 
CysLT Tooltip Cysteinyl leukotriene receptor 
CysLT1  Tooltip Cysteinyl leukotriene receptor 1 CysLT2  Tooltip Cysteinyl leukotriene receptor 2 CysLTE  Tooltip Cysteinyl leukotriene receptor E 
Enzyme (inhibitors ) 
5-LOX Tooltip Arachidonate 5-lipoxygenase 12-LOX Tooltip Arachidonate 12-lipoxygenase 15-LOX Tooltip Arachidonate 15-lipoxygenase LTA4 H Tooltip Leukotriene A4 hydrolase LTB4 H Tooltip Leukotriene B4 ω-hydroxylase LTC4 S Tooltip Leukotriene C4 synthase LTC4 H Tooltip Leukotriene C4 hydrolase LTD4  Tooltip Leukotriene D4 hydrolase 
Others 
Receptor (ligands ) 
CB1  Tooltip Cannabinoid receptor type 1 
Agonists(abridged,full list )  Inverse agonists Antagonists 
CB2  Tooltip Cannabinoid receptor type 2 
Agonists 
2-AG 2-AGE (noladin ether) 3,3'-Diindolylmethane 4-O-Methylhonokiol α-Amyrin · β-Amyrin A-796,260 A-834,735 A-836,339 AM-1172 AM-1221 AM-1235 AM-1241 AM-2232 Anandamide AZ-11713908 Cannabinol Caryophyllene CB-13 CBS-0550 CP 55,940 GW-405,833 (L-768,242) GW-842,166X HU-308 JTE 7-31 JWH-007 JWH-015 JWH-018 JWH-73 JWH-133 L-759,633 L-759,656 Lenabasum (anabasum) Magnolol MDA-19 Nabitan NADA Olorinab (APD-371) PF-03550096 S-444,823 SER-601 Serinolamide A UR-144 Tedalinab THC (dronabinol) THCV Tetrahydromagnolol Virodhamine  Antagonists 
NAGly GPR18 )
GPR55 
GPR119 
Transporter (modulators ) 
eCBTs Tooltip Endocannabinoid transporter 
Enzyme (modulators) 
Others 
Others:  2-PG  (directly potentiates activity of 2-AG at CB1  receptor) ARN-272  (FAAH-like anandamide transporter inhibitor)