Enzymes
UniProtKB help_outline | 3 proteins |
Reaction participants Show >> << Hide
- Name help_outline 1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine Identifier CHEBI:74986 Charge 0 Formula C41H78NO8P InChIKeyhelp_outline MWRBNPKJOOWZPW-NYVOMTAGSA-N SMILEShelp_outline O(C(=O)CCCCCCC/C=C\CCCCCCCC)[C@H](COC(=O)CCCCCCC/C=C\CCCCCCCC)COP(=O)([O-])OCC[NH3+] 2D coordinates Mol file for the small molecule Search links Involved in 15 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 1-hexadecanoyl-2-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-sn-glycero-3-phosphocholine Identifier CHEBI:73003 (Beilstein: 7738062; CAS: 6931-56-2) help_outline Charge 0 Formula C44H80NO8P InChIKeyhelp_outline IIZPXYDJLKNOIY-JXPKJXOSSA-N SMILEShelp_outline C(C[N+](C)(C)C)OP(=O)([O-])OC[C@H](OC(CCC/C=C\C/C=C\C/C=C\C/C=C\CCCCC)=O)COC(=O)CCCCCCCCCCCCCCC 2D coordinates Mol file for the small molecule Search links Involved in 9 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline 1-hexadecanoyl-sn-glycero-3-phosphocholine Identifier CHEBI:72998 (CAS: 14863-27-5) help_outline Charge 0 Formula C24H50NO7P InChIKeyhelp_outline ASWBNKHCZGQVJV-HSZRJFAPSA-N SMILEShelp_outline [C@@H](COC(=O)CCCCCCCCCCCCCCC)(COP(OCC[N+](C)(C)C)(=O)[O-])O 2D coordinates Mol file for the small molecule Search links Involved in 77 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-(5Z,8Z,11Z,14Z-eicosatetraenoyl)-1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine Identifier CHEBI:85277 Charge -1 Formula C61H107NO9P InChIKeyhelp_outline WDNUSSOPDWPIPF-ANDZTLMQSA-M SMILEShelp_outline CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCCNC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC)OC(=O)CCCCCCC\C=C/CCCCCCCC 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
Cross-references
RHEA:45476 | RHEA:45477 | RHEA:45478 | RHEA:45479 | |
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Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
UniProtKB help_outline |
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Related reactions help_outline
More general form(s) of this reaction
Publications
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Discovery and characterization of a Ca2+-independent phosphatidylethanolamine N-acyltransferase generating the anandamide precursor and its congeners.
Jin X.H., Okamoto Y., Morishita J., Tsuboi K., Tonai T., Ueda N.
N-Acylphosphatidylethanolamines (NAPEs) are precursors of bioactive N-acylethanolamines, including the endocannabinoid anandamide. In animal tissues, NAPE is formed by transfer of a fatty acyl chain at the sn-1 position of glycerophospholipids to the amino group of phosphatidylethanolamine (PE), a ... >> More
N-Acylphosphatidylethanolamines (NAPEs) are precursors of bioactive N-acylethanolamines, including the endocannabinoid anandamide. In animal tissues, NAPE is formed by transfer of a fatty acyl chain at the sn-1 position of glycerophospholipids to the amino group of phosphatidylethanolamine (PE), and this reaction is believed to be the principal rate-limiting step in N-acylethanolamine synthesis. However, the Ca2+-dependent, membrane-associated N-acyltransferase (NAT) responsible for this reaction has not yet been cloned. In this study, on the basis of the functional similarity of NAT to lecithin-retinol acyltransferase (LRAT), we examined a possible PE N-acylation activity in two rat LRAT homologous proteins. Upon overexpression in COS-7 cells, one protein, named rat LRAT-like protein (RLP)-1, catalyzed transfer of a radioactive acyl group from phosphatidylcholine (PC) to PE, resulting in the formation of radioactive NAPE. However, the RLP-1 activity was detected mainly in the cytosolic rather than membrane fraction and was little stimulated by Ca2+. Moreover, RLP-1 did not show selectivity with respect to the sn-1 and sn-2 positions of PC as an acyl donor and therefore could generate N-arachidonoyl-PE (anandamide precursor) from 2-arachidonoyl-PC and PE. In contrast, under the same assay conditions, partially purified NAT from rat brain was highly Ca2+-dependent, membrane-associated, and specific for the sn-1-acyl group of PC. RLP-1 mRNA was expressed predominantly in testis among various rat tissues, and the testis cytosol exhibited an RLP-1-like activity. These results reveal that RLP-1 can function as a PE N-acyltransferase, catalytically distinguishable from the known Ca2+-dependent NAT. << Less
J. Biol. Chem. 282:3614-3623(2007) [PubMed] [EuropePMC]
This publication is cited by 7 other entries.
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cDNA cloning and characterization of human and mouse Ca(2+)-independent phosphatidylethanolamine N-acyltransferases.
Jin X.-H., Uyama T., Wang J., Okamoto Y., Tonai T., Ueda N.
The formation of N-acylphosphatidylethanolamine by N-acylation of phosphatidylethanolamine (PE) is the initial step in the biosynthetic pathway of bioactive N-acylethanolamines, including the endocannabinoid anandamide and the anti-inflammatory substance N-palmitoylethanolamine. We recently cloned ... >> More
The formation of N-acylphosphatidylethanolamine by N-acylation of phosphatidylethanolamine (PE) is the initial step in the biosynthetic pathway of bioactive N-acylethanolamines, including the endocannabinoid anandamide and the anti-inflammatory substance N-palmitoylethanolamine. We recently cloned a rat enzyme capable of catalyzing this reaction, and referred to the enzyme as Ca(2+)-independent N-acyltransferase (iNAT). Here we report cDNA cloning and characterization of human and mouse iNATs. We cloned iNAT-homologous cDNAs from human and mouse testes, and overexpressed them in COS-7 cells. The purified recombinant proteins abstracted an acyl group from both sn-1 and sn-2 positions of phosphatidylcholine, and catalyzed N-acylation of PE as well as phospholipase A(1)/A(2)-like hydrolysis. The iNAT activity was mainly detected in soluble rather than particulate fractions, and was only slightly increased by Ca(2+). These results demonstrated that the human and mouse homologues function as iNAT. As for the organ distribution of iNAT, human testis and pancreas and mouse testis exhibited by far the highest expression level, suggesting its physiological importance in the specific organs. Moreover, mutagenesis studies showed crucial roles of His-154 and Cys-241 of rat iNAT in the catalysis and a possible role of the N-terminal domain in membrane association or protein-protein interaction. << Less
Biochim. Biophys. Acta 1791:32-38(2009) [PubMed] [EuropePMC]
This publication is cited by 2 other entries.