Target type: biologicalprocess
The chemical reactions and pathways resulting in the formation of phosphatidylethanolamine, any of a class of glycerophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of ethanolamine. [ISBN:0198506732]
Phosphatidylethanolamine (PE) biosynthesis is a fundamental process in cellular metabolism, essential for the formation of cell membranes and various other cellular functions. The process involves the synthesis of PE, a major phospholipid component of cellular membranes, from its precursor molecules.
The major pathway for PE biosynthesis is the CDP-ethanolamine pathway, which occurs in the cytoplasm and the endoplasmic reticulum (ER) of eukaryotic cells.
1. **Activation of Ethanolamine:** The pathway starts with the activation of ethanolamine by phosphorylation using ATP, catalyzed by the enzyme ethanolamine kinase. This step produces phosphoethanolamine.
2. **Formation of CDP-ethanolamine:** Phosphoethanolamine is then reacted with CTP (cytidine triphosphate) by the enzyme CDP-ethanolamine synthase, generating CDP-ethanolamine.
3. **Transfer of Ethanolamine to Diacylglycerol:** Finally, CDP-ethanolamine acts as a donor of ethanolamine, which is transferred to diacylglycerol by the enzyme phosphatidylethanolamine synthase. This reaction results in the formation of phosphatidylethanolamine, a key component of cellular membranes.
4. **Decarboxylation of Phosphatidylserine:** Another pathway for PE biosynthesis involves the decarboxylation of phosphatidylserine (PS) by the enzyme phosphatidylserine decarboxylase. This pathway predominantly occurs in the ER.
**Regulation of PE Biosynthesis:** The synthesis of PE is tightly regulated, ensuring an appropriate balance of phospholipid composition in cellular membranes. Factors that influence PE synthesis include:
* **Availability of precursor molecules:** The availability of ethanolamine, CTP, and diacylglycerol can regulate the rate of PE biosynthesis.
* **Enzyme activity:** The activity of the enzymes involved in PE synthesis can be influenced by various factors, including intracellular signaling pathways and cellular stress.
**Importance of PE Biosynthesis:**
* **Membrane formation:** PE is a major component of cellular membranes, providing structural integrity and fluidity.
* **Signal transduction:** PE is involved in various signaling pathways, including those related to cell growth, differentiation, and apoptosis.
* **Protein trafficking:** PE plays a role in the transport of proteins to different cellular compartments.
* **Lipid metabolism:** PE serves as a precursor for other phospholipids, including phosphatidylcholine and phosphatidylinositol.
Overall, phosphatidylethanolamine biosynthetic process is a critical cellular process that ensures the proper formation and function of cellular membranes, as well as the regulation of various cellular processes.
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| Protein | Definition | Taxonomy |
|---|---|---|
| Choline kinase alpha | A choline kinase alpha that is encoded in the genome of human. [PRO:DNx, UniProtKB:P35790] | Homo sapiens (human) |
| Polyunsaturated fatty acid lipoxygenase ALOX15 | A polyunsaturated fatty acid lipoxygenase ALOX15 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P16050] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| chloroxine | chloroxine : A monohydroxyquinoline that is quinolin-8-ol in which the hydrogens at positions 5 and 7 have been substituted by chlorine. A synthetic antibacterial prepared by chlorination of quinolin-8-ol, it is used for the treatment of dandruff and seborrhoeic dermatitis of the scalp. | monohydroxyquinoline; organochlorine compound | antibacterial agent; antifungal drug; antiseborrheic |
| hexylresorcinol | resorcinols | ||
| 4-(dimethylamino)-n-(7-(hydroxyamino)-7-oxoheptyl)benzamide | 4-(dimethylamino)-N-(7-(hydroxyamino)-7-oxoheptyl)benzamide: structure in first source 4-(dimethylamino)-N-[7-(hydroxyamino)-7-oxoheptyl]benzamide : A benzamide resulting from the formal condensation of the carboxy group of 4-(dimethylamino)benzoic acid with the amino group of 7-amino-N-hydroxyheptanamide. It is a potent inhibitor of histone deacetylases and induces cell cycle arrest and apoptosis in several human cancer cell lines. | benzamides; hydroxamic acid; secondary carboxamide; tertiary amino compound | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| masoprocol | nordihydroguaretic acid: antioxidant compound found in the creosote bush (Larrea tridentata) | catechols; lignan; tetrol | antioxidant; ferroptosis inhibitor; geroprotector; plant metabolite |
| probucol | probucol : A dithioketal that is propane-2,2-dithiol in which the hydrogens attached to both sulfur atoms are replaced by 3,5-di-tert-butyl-4-hydroxyphenyl groups. An anticholesteremic drug with antioxidant and anti-inflammatory properties, it is used to treat high levels of cholesterol in blood. Probucol: A drug used to lower LDL and HDL cholesterol yet has little effect on serum-triglyceride or VLDL cholesterol. (From Martindale, The Extra Pharmacopoeia, 30th ed, p993). | dithioketal; polyphenol | anti-inflammatory drug; anticholesteremic drug; antilipemic drug; antioxidant; cardiovascular drug |
| vorinostat | vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL). Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME. | dicarboxylic acid diamide; hydroxamic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| tetrabromobisphenol a | 3,3',5,5'-tetrabromobisphenol A : A bromobisphenol that is 4,4'-methanediyldiphenol in which the methylene hydrogens are replaced by two methyl groups and the phenyl rings are substituted by bromo groups at positions 2, 2', 6 and 6'. It is a brominated flame retardant. tetrabromobisphenol A: a brominated flame retardant | brominated flame retardant; bromobisphenol | |
| phenidone | phenidone: photographic developer; RN given refers to parent cpd; structure | ||
| 2-bromophenol | bromophenol : A halophenol that is any phenol containing one or more covalently bonded bromine atoms. | bromophenol | marine metabolite |
| 4-bromophenol | 4-bromophenol : A bromophenol containing only hydroxy and bromo substituents that are para to one another. | bromophenol | human urinary metabolite; human xenobiotic metabolite; marine metabolite; mouse metabolite; persistent organic pollutant; rat metabolite |
| indolizine | indolizines; mancude organic heterobicyclic parent | ||
| 3-hydroxyflavone | 3-hydroxyflavone: structure given in first source flavonol : A monohydroxyflavone that is the 3-hydroxy derivative of flavone. | flavonols; monohydroxyflavone | |
| 3-bromophenol | |||
| 2,6-dibromophenol | 2,6-dibromophenol : A dibromophenol that is phenol in which both of the hydrogens that are ortho to the phenolic hydroxy group have been replaced by bromines. | bromohydrocarbon; dibromophenol | marine metabolite |
| 2,4-dibromophenol | 2,4-dibromophenol : A bromophenol that is phenol in which the hydrogens at positions 2 and 4 have been replaced by bromines. | brominated flame retardant; bromophenol; dibromobenzene | marine metabolite |
| 4-dimethylaminopyridine | 4-dimethylaminopyridine: catalyst for acetylation of hydroxy cpds; structure | dialkylarylamine; tertiary amino compound | |
| zileuton | 1-benzothiophenes; ureas | anti-asthmatic drug; EC 1.13.11.34 (arachidonate 5-lipoxygenase) inhibitor; ferroptosis inhibitor; leukotriene antagonist; non-steroidal anti-inflammatory drug | |
| 6-hydroxyflavone | 6-hydroxyflavone: antioxidant; structure in first source | hydroxyflavonoid | |
| puupehenone | |||
| 4-pyrrolidinopyridine | |||
| l 656224 | L 656224: structure given in first source | ||
| moracin c | benzofurans | ||
| pd 146176 | PD-146176 : An organic heterotetracyclic compound that is 1H-indole which is ortho-fused to a 2H-1-benzothiopyran group at positions 2-3. It is an inhibitor of 15-lipoxygenase that limits atherosclerotic lesion development in rabbits. | organic heterotetracyclic compound; organonitrogen heterocyclic compound; organosulfur heterocyclic compound | antiatherogenic agent; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; ferroptosis inhibitor |
| boswellic acid | |||
| 2-(4-chlorophenyl)-5-(methylamino)-4-oxazolecarbonitrile | 1,3-oxazoles | ||
| 3,6-dihydroxyflavone | 3,6-dihydroxyflavone: induces apoptosis in leukemia HL-60 cells; structure in first source | ||
| aurapten | aurapten: RN refers to (E)-isomer; structure given in first source auraptene : A member of the class of coumarins that is umbelliferone in which the phenolic hydrogen has been replaced by a geranyl group. Ii is isolated from several edible fruits and vegetables and exhibits a variety of therapeutic properties. | coumarins; monoterpenoid | antihypertensive agent; antineoplastic agent; antioxidant; apoptosis inducer; dopaminergic agent; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; gamma-secretase modulator; gastrointestinal drug; hepatoprotective agent; matrix metalloproteinase inhibitor; neuroprotective agent; plant metabolite; PPARalpha agonist; vulnerary |
| umbelliprenin | umbelliprenin: RN given refers to cpd with unspecified isomeric designation | terpene lactone | |
| 4-fluorobenzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| 4-methoxybenzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | methoxybenzoic acid | ||
| 4-bromobenzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| 2-benzofurancarboxylic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| 3,5-dibromo-2-(2,4-dibromophenoxy)phenol | 3,5-dibromo-2-(2,4-dibromophenoxy)phenol: isolated from the marine sponge Callyspongidae; inhibits contraction of smooth muscle in ileum; structure in first source | ||
| 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]-2-butyn-1-ol | naphthalenes | ||
| 1-phenyl-2-[[4-(trifluoromethyl)phenyl]methylthio]imidazole | imidazoles | ||
| 4-chlorobenzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| quercetin | 7-hydroxyflavonol; pentahydroxyflavone | antibacterial agent; antineoplastic agent; antioxidant; Aurora kinase inhibitor; chelator; EC 1.10.99.2 [ribosyldihydronicotinamide dehydrogenase (quinone)] inhibitor; geroprotector; phytoestrogen; plant metabolite; protein kinase inhibitor; radical scavenger | |
| luteolin | 3'-hydroxyflavonoid; tetrahydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antineoplastic agent; apoptosis inducer; c-Jun N-terminal kinase inhibitor; EC 2.3.1.85 (fatty acid synthase) inhibitor; immunomodulator; nephroprotective agent; plant metabolite; radical scavenger; vascular endothelial growth factor receptor antagonist | |
| 15-keto-5,8,11,13-eicosatetraenoic acid | 15-keto-5,8,11,13-eicosatetraenoic acid: RN given refers to (E,Z,Z,Z)-isomer; RN for cpd without isomeric designation not available 3/88 15-oxo-ETE : An oxoicosatetraenoic acid having (5Z,8Z,11Z,13E) double bond stereochemistry, and an oxo group in position 15. | oxoicosatetraenoic acid | human metabolite |
| baicalein | trihydroxyflavone | angiogenesis inhibitor; anti-inflammatory agent; antibacterial agent; anticoronaviral agent; antifungal agent; antineoplastic agent; antioxidant; apoptosis inducer; EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; EC 3.4.22.69 (SARS coronavirus main proteinase) inhibitor; EC 4.1.1.17 (ornithine decarboxylase) inhibitor; ferroptosis inhibitor; geroprotector; hormone antagonist; plant metabolite; prostaglandin antagonist; radical scavenger | |
| fisetin | 3'-hydroxyflavonoid; 7-hydroxyflavonol; tetrahydroxyflavone | anti-inflammatory agent; antioxidant; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; geroprotector; metabolite; plant metabolite | |
| mangostin | alpha-mangostin : A member of the class of xanthones that is 9H-xanthene substituted by hydroxy group at positions 1, 3 and 6, a methoxy group at position 7, an oxo group at position 9 and prenyl groups at positions 2 and 8. Isolated from the stems of Cratoxylum cochinchinense, it exhibits antioxidant, antimicrobial and antitumour activities. mangostin: xanthone from rind of Garcinia mangostana Linn. fruit | aromatic ether; phenols; xanthones | antimicrobial agent; antineoplastic agent; antioxidant; plant metabolite |
| daidzein | 7-hydroxyisoflavones | antineoplastic agent; EC 2.7.7.7 (DNA-directed DNA polymerase) inhibitor; EC 3.2.1.20 (alpha-glucosidase) inhibitor; phytoestrogen; plant metabolite | |
| caffeic acid phenethyl ester | phenethyl caffeate : An alkyl caffeate ester in which 2-phenylethyl is the alkyl component. | alkyl caffeate ester | anti-inflammatory agent; antibacterial agent; antineoplastic agent; antioxidant; antiviral agent; immunomodulator; metabolite; neuroprotective agent |
| 7-hydroxyflavone | 7-hydroxyflavone : A hydroxyflavonoid in which the flavone nucleus is substituted at position 7 by a hydroxy group. | hydroxyflavonoid | |
| 5-oxo-6,8,11,14-eicosatetraenoic acid | 5-ketoeicosatetraenoic acid: a nonenzymatic rearrangement product of leukotriene A4; structure given in first source 5-oxo-ETE : An oxoicosatetraenoic acid having a 5-oxo group; and (6E)-, (8Z), (11Z)- and (14Z)-double bonds. | oxoicosatetraenoic acid | human metabolite; immunomodulator; mouse metabolite |
| 6,7,4'-trihydroxyisoflavone | 4',6,7-trihydroxyisoflavone : A hydroxyisoflavone that is daidzein bearing an additional hydroxy substituent at position 6. 6,7,4'-trihydroxyisoflavone: structure in first source | 7-hydroxyisoflavones | anti-inflammatory agent; antimutagen; EC 1.14.18.1 (tyrosinase) inhibitor; metabolite; PPARalpha agonist; PPARgamma agonist |
| 7-hydroxyisoflavone | 7-hydroxyisoflavone : The simplest member of the class of 7-hydroxyisoflavones that is isoflavone with a hydroxy substituent at position 7. 7-hydroxyisoflavone: effective against, Enterovirus 71; structure in first source | 7-hydroxyisoflavones | EC 1.14.14.14 (aromatase) inhibitor; metabolite |
| 3,7-dihydroxyflavone | 3,7-dihydroxyflavone: structure in first source 7-hydroxyflavonol : Any flavonol carrying a 7-hydroxy substituent. | hydroxyflavan | |
| 13-oxo-9,11-octadecadienoic acid | 13-oxo-9Z,11E-ODE : An oxooctadecadienoic acid that consists of 9Z,11E-octadecadienoic acid bearing an additional 13-keto substituent. In addtion it has been found as a natural product found in Carthamus oxyacantha. | 13-oxo-9,11-octadecadienoic acid | metabolite; mouse metabolite |
| dysidenin | dysidenin : A secondary carboxamide resulting from the formal condensation of the carboxy group of (4S)-5,5,5-trichloro-N-methyl-N-[(3S)-4,4,4-trichloro-3-methylbutanoyl]-L-leucine with the amino group of (1S)-1-(1,3-thiazol-2-yl)ethanamine. It is a marine metabolite initially isolated from the sponge dysidea herbacea. dysidenin: structure given in first source; from the sponge Dysidea herbacea; RN given refers to (2S-(N(R*),2R*(R*),4R*))-isomer; RN for cpd without isomeric designation not avail 5/90 | 1,3-thiazoles; organochlorine compound; secondary carboxamide; tertiary carboxamide | animal metabolite; marine metabolite; toxin |
| jaspaquinol | jaspaquinol: structure in first source | ||
| rsm-932a | RSM-932A: a choline kinase inhibitor with antimalarial activity; structure in first source | ||
| halisulfate 1 | halisulfate 1: an isocitrate lyase inhibitor sesterterpene sulfate from sponge, Hippospongia sp.; structure in first source | organic molecular entity | metabolite |
| N-[4-cyano-2-(1-naphthalenyl)-5-oxazolyl]acetamide | naphthalenes | ||
| 5-amino-2-(1-naphthalenyl)-4-oxazolecarbonitrile | naphthalenes | ||
| 4-(dimethylamino)benzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| 2-methoxybenzoic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | methoxybenzoic acid | ||
| 2-naphthalenecarboxylic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthoic acid | ||
| 1H-imidazole-5-carboxylic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | naphthalenes | ||
| 1H-indole-4-carboxylic acid 4-[[5-(1-naphthalenyl)-1,3,4-oxadiazol-2-yl]thio]but-2-ynyl ester | indolyl carboxylic acid | ||
| N-[(5-bromo-8-hydroxy-7-quinolinyl)-thiophen-2-ylmethyl]acetamide | hydroxyquinoline | ||
| ML355 | ML355 : A sulfonamide resulting from the formal condensation of the amino group of 2-aminobenzothiazole with the sulfo group of 4-[(2-hydroxy-3-methoxybenzyl)amino]benzenesulfonic acid. It is an inhibitor of 12-lipoxygenase, being developed by Veralox Therapeutics for the treatment of heparin-induced thrombocytopenia and thrombosis. ML355: 12-Lipoxygenase inhibitor | benzothiazoles; monomethoxybenzene; phenols; secondary amino compound; substituted aniline; sulfonamide | EC 1.13.11.31 (arachidonate 12-lipoxygenase) inhibitor; platelet aggregation inhibitor |