Enzymes
| UniProtKB help_outline | 542 proteins |
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- Name help_outline 1-O-(1Z-octadecenoyl)-2-(9Z-octadecenoyl)-sn-glycero-3-phospho-N-hexadecanoyl-ethanolamine Identifier CHEBI:138663 Charge -1 Formula C57H109NO8P InChIKeyhelp_outline UQKONGBTZFNBQX-SFVTZJANSA-M SMILEShelp_outline C(CCCCCCC/C=C\CCCCCCCC)(=O)O[C@@H](COP(=O)(OCCNC(CCCCCCCCCCCCCCC)=O)[O-])CO/C=C\CCCCCCCCCCCCCCCC 2D coordinates Mol file for the small molecule Search links Involved in 3 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H2O Identifier CHEBI:15377 (Beilstein: 3587155; CAS: 7732-18-5) help_outline Charge 0 Formula H2O InChIKeyhelp_outline XLYOFNOQVPJJNP-UHFFFAOYSA-N SMILEShelp_outline [H]O[H] 2D coordinates Mol file for the small molecule Search links Involved in 6,048 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 1-O-(1Z-octadecenoyl)-2-(9Z-octadecenoyl)-sn-glycero-3-phosphate Identifier CHEBI:140452 Charge -2 Formula C39H73O7P InChIKeyhelp_outline ZJGMUQGWZOJOAO-VDWFBKDDSA-L SMILEShelp_outline C(CCCCCCC/C=C\CCCCCCCC)(=O)O[C@@H](COP(=O)([O-])[O-])CO/C=C\CCCCCCCCCCCCCCCC 2D coordinates Mol file for the small molecule Search links Involved in 1 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline N-hexadecanoylethanolamine Identifier CHEBI:71464 (CAS: 544-31-0) help_outline Charge 0 Formula C18H37NO2 InChIKeyhelp_outline HXYVTAGFYLMHSO-UHFFFAOYSA-N SMILEShelp_outline CCCCCCCCCCCCCCCC(=O)NCCO 2D coordinates Mol file for the small molecule Search links Involved in 10 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:56464 | RHEA:56465 | RHEA:56466 | RHEA:56467 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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Publications
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Enzymatic formation of N-acylethanolamines from N-acylethanolamine plasmalogen through N-acylphosphatidylethanolamine-hydrolyzing phospholipase D-dependent and -independent pathways.
Tsuboi K., Okamoto Y., Ikematsu N., Inoue M., Shimizu Y., Uyama T., Wang J., Deutsch D.G., Burns M.P., Ulloa N.M., Tokumura A., Ueda N.
Bioactive N-acylethanolamines include anandamide (an endocannabinoid), N-palmitoylethanolamine (an anti-inflammatory), and N-oleoylethanolamine (an anorexic). In the brain, these molecules are formed from N-acylphosphatidylethanolamines (NAPEs) by a specific phospholipase D, called NAPE-PLD, or th ... >> More
Bioactive N-acylethanolamines include anandamide (an endocannabinoid), N-palmitoylethanolamine (an anti-inflammatory), and N-oleoylethanolamine (an anorexic). In the brain, these molecules are formed from N-acylphosphatidylethanolamines (NAPEs) by a specific phospholipase D, called NAPE-PLD, or through NAPE-PLD-independent multi-step pathways, as illustrated in the current study employing NAPE-PLD-deficient mice. Although N-acylethanolamine plasmalogen (1-alkenyl-2-acyl-glycero-3-phospho(N-acyl)ethanolamine, pNAPE) is presumably a major class of N-acylethanolamine phospholipids in the brain, its enzymatic conversion to N-acylethanolamines is poorly understood. In the present study, we focused on the formation of N-acylethanolamines from pNAPEs. While recombinant NAPE-PLD catalyzed direct release of N-palmitoylethanolamine from N-palmitoylethanolamine plasmalogen, the same reaction occurred in the brain homogenate of NAPE-PLD-deficient mice, suggesting that this reaction occurs through both the NAPE-PLD-dependent and -independent pathways. Liquid chromatography-mass spectrometry revealed a remarkable accumulation of 1-alkenyl-2-hydroxy-glycero-3-phospho(N-acyl)ethanolamines (lyso pNAPEs) in the brain of NAPE-PLD-deficient mice. We also found that brain homogenate formed N-palmitoylethanolamine, N-oleoylethanolamine, and anandamide from their corresponding lyso pNAPEs by a Mg(2+)-dependent "lysophospholipase D". Moreover, the brain levels of alkenyl-type lysophosphatidic acids, the other products from lyso pNAPEs by lysophospholipase D, also increased in NAPE-PLD-deficient mice. Glycerophosphodiesterase GDE1 can hydrolyze glycerophospho-N-acylethanolamines to N-acylethanolamines in the brain. In addition, we discovered that recombinant GDE1 has a weak activity to generate N-palmitoylethanolamine from its corresponding lyso pNAPE, suggesting that this enzyme is at least in part responsible for the lysophospholipase D activity. These results strongly suggest that brain tissue N-acylethanolamines, including anandamide, can be formed from N-acylated plasmalogen through an NAPE-PLD-independent pathway as well as by their direct release via NAPE-PLD. << Less
Biochim. Biophys. Acta 1811:565-577(2011) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.