Record Information |
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Version | 2.0 |
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Created at | 2005-11-16 15:48:42 UTC |
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Updated at | 2021-07-01 14:27:27 UTC |
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NP-MRD ID | NP0000470 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | O-Phosphoethanolamine |
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Description | O-Phosphoethanolamine, also known as PEA, phosphorylethanolamine, colamine phosphoric acid or ethanolamine O-phosphate, belongs to the class of organic compounds known as phosphoethanolamines. Phosphoethanolamines are compounds containing a phosphate linked to the second carbon of an ethanolamine. O-Phosphoethanolamine is used in the biosynthesis of two different types of phospholipids: Glycerophospholipids and sphingolipids. O-Phosphoethanolamine exists in all living species, ranging from bacteria to plants to humans. Within humans, O-phosphoethanolamine participates in a number of enzymatic reactions. In particular, cytidine triphosphate and O-phosphoethanolamine can be converted into CDP-ethanolamine; which is mediated by the enzyme ethanolamine-phosphate cytidylyltransferase. In addition, O-phosphoethanolamine can be biosynthesized from ethanolamine; which is catalyzed by the enzyme choline/ethanolamine kinase. In humans, O-phosphoethanolamine is involved in phosphatidylcholine biosynthesis. O-phosphoethanolamine is also a product of the metabolism of sphingolipids. In particular, sphinglipids are metabolized in vivo to phosphorylethanolamine and a fatty aldehyde, generally palmitaldehyde. Both metabolites are ultimately converted to glycerophospholipids. The lipids are first phosphorylated by a kinase and then cleaved by the pyridoxal-dependent sphinganine-1-phosphate aldolase. Elevated urine levels of O-Phosphoethanolamine or PEA can be used to help in the diagnosis of Hypophosphatasia (HPP). Reference ranges for urinary PEA vary according to age and somewhat by diet, and follow a circadian rhythm. Outside of the human body, O-phosphoethanolamine has been detected, but not quantified in, several different foods, such as oxheart cabbages, anises, shiitakes, abalones, and teffs. |
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Structure | InChI=1S/C2H8NO4P/c3-1-2-7-8(4,5)6/h1-3H2,(H2,4,5,6) |
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Synonyms | Value | Source |
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2-Amino-ethanol dihydrogen phosphate | ChEBI | 2-Amino-ethanol phosphate | ChEBI | Colamine phosphate | ChEBI | Colamine phosphoric acid | ChEBI | Colaminphosphoric acid | ChEBI | EAP | ChEBI | Ethanolamine acid phosphate | ChEBI | Ethanolamine O-phosphate | ChEBI | Ethanolamine phosphate | ChEBI | mono(2-Aminoethyl) phosphate | ChEBI | Monoaminoethyl phosphate | ChEBI | O-Phosphocolamine | ChEBI | O-Phosphorylethanolamine | ChEBI | OPE | ChEBI | PE | ChEBI | PEA | ChEBI | PETN | ChEBI | Phosphoethanolamine | ChEBI | Phosphoric acid 2-aminoethyl phenyl ester | ChEBI | Phosphoryl-ethanolamine | ChEBI | 2-Amino-ethanol dihydrogen phosphoric acid | Generator | 2-Amino-ethanol phosphoric acid | Generator | Colaminphosphate | Generator | Ethanolamine acid phosphoric acid | Generator | Ethanolamine O-phosphoric acid | Generator | Ethanolamine phosphoric acid | Generator | mono(2-Aminoethyl) phosphoric acid | Generator | Monoaminoethyl phosphoric acid | Generator | Phosphate 2-aminoethyl phenyl ester | Generator | Phosphonoethanolamine | HMDB | 2-Amino-ethanol dihydrogen phosphate (ester) | HMDB | 2-Aminoethanol O-phosphate | HMDB | 2-Aminoethyl dihydrogen phosphate | HMDB | 2-Aminoethyl dihydrogen phosphate (acd/name 4.0) | HMDB | 2-Aminoethyl phosphate | HMDB | Colamine acid phosphate | HMDB | Colaminephosphoric acid | HMDB | Ethamp | HMDB | O-Phosphonatoethanaminium | HMDB | Phosphoryethanolamine | HMDB | Phosphorylethanolamine | HMDB | Phosphorylethanolamine, 3H-labeled CPD | HMDB | Phosphorylethanolamine magnesium (1:1) salt | HMDB | Phosphorylethanolamine zinc salt | HMDB | Phosphorylethanolamine, cobalt (2+) (1:1) salt | HMDB | Calcium 2-aminoethanol phosphate | HMDB | Phosphorylethanolamine ca (1:1) salt | HMDB |
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Chemical Formula | C2H8NO4P |
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Average Mass | 141.0630 Da |
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Monoisotopic Mass | 141.01909 Da |
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IUPAC Name | (2-aminoethoxy)phosphonic acid |
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Traditional Name | phosphorylethanolamine |
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CAS Registry Number | 1071-23-4 |
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SMILES | NCCOP(O)(O)=O |
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InChI Identifier | InChI=1S/C2H8NO4P/c3-1-2-7-8(4,5)6/h1-3H2,(H2,4,5,6) |
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InChI Key | SUHOOTKUPISOBE-UHFFFAOYSA-N |
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Experimental Spectra |
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| Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | 2D NMR | [1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| Predicted Spectra |
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| Not Available | Chemical Shift Submissions |
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| Not Available | Species |
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Species of Origin | |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as phosphoethanolamines. Phosphoethanolamines are compounds containing a phosphate linked to the second carbon of an ethanolamine. |
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Kingdom | Organic compounds |
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Super Class | Organic acids and derivatives |
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Class | Organic phosphoric acids and derivatives |
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Sub Class | Phosphate esters |
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Direct Parent | Phosphoethanolamines |
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Alternative Parents | |
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Substituents | - Phosphoethanolamine
- Monoalkyl phosphate
- Alkyl phosphate
- Organic nitrogen compound
- Organic oxygen compound
- Organopnictogen compound
- Organic oxide
- Hydrocarbon derivative
- Primary amine
- Organooxygen compound
- Organonitrogen compound
- Primary aliphatic amine
- Amine
- Aliphatic acyclic compound
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Molecular Framework | Aliphatic acyclic compounds |
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External Descriptors | |
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Physical Properties |
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State | Solid |
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Experimental Properties | Property | Value | Reference |
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Melting Point | 241 - 243 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 72 mg/mL | Not Available | LogP | Not Available | Not Available |
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Predicted Properties | |
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General References | - Silwood CJ, Lynch E, Claxson AW, Grootveld MC: 1H and (13)C NMR spectroscopic analysis of human saliva. J Dent Res. 2002 Jun;81(6):422-7. [PubMed:12097436 ]
- Seki Y, Kimura M, Mizutani N, Fujita M, Aimi Y, Suzuki Y: Cerebrospinal fluid taurine after traumatic brain injury. Neurochem Res. 2005 Jan;30(1):123-8. [PubMed:15756940 ]
- Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3. [PubMed:23455439 ]
- Klunk WE, Debnath ML, McClure RJ, Pettegrew JW: Inactivity of phosphoethanolamine, an endogenous GABA analog decreased in Alzheimer's disease, at GABA binding sites. Life Sci. 1995;56(26):2377-83. [PubMed:7791524 ]
- Klunk WE, McClure RJ, Xu CJ, Pettegrew JW: Structural determinants of activity at the GABAB receptor. A comparison of phosphoethanolamine and related GABA analogs. Mol Chem Neuropathol. 1995 Sep;26(1):15-30. [PubMed:8588821 ]
- Li G, Foote C, Alexander S, Alexander H: Sphingosine-1-phosphate lyase has a central role in the development of Dictyostelium discoideum. Development. 2001 Sep;128(18):3473-83. [PubMed:11566853 ]
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