| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2005-11-16 15:48:42 UTC |
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| Update Date | 2023-02-21 17:14:40 UTC |
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| HMDB ID | HMDB0000263 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Phosphoenolpyruvic acid |
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| Description | Phosphoenolpyruvate (PEP) is an important chemical compound in biochemistry. It has a high energy phosphate bond, and is involved in glycolysis and gluconeogenesis. In glycolysis, PEP is formed by the action of the enzyme enolase on 2-phosphoglycerate. Metabolism of PEP to pyruvate by pyruvate kinase (PK) generates 1 molecule of adenosine triphosphate (ATP) via substrate-level phosphorylation. ATP is one of the major currencies of chemical energy within cells. In gluconeogenesis, PEP is formed from the decarboxylation of oxaloacetate and hydrolysis of 1 guanosine triphosphate molecule. This reaction is catalyzed by the enzyme phosphoenolpyruvate carboxykinase (PEPCK). This reaction is a rate-limiting step in gluconeogenesis. (wikipedia). |
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| Structure | InChI=1S/C3H5O6P/c1-2(3(4)5)9-10(6,7)8/h1H2,(H,4,5)(H2,6,7,8) |
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| Synonyms | | Value | Source |
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| 2-(Phosphonooxy)-2-propenoic acid | ChEBI | | 2-PHOSPHOENOLPYRUVIC ACID | ChEBI | | PEP | ChEBI | | PHOSPHOENOLPYRUVATE | ChEBI | | 2-(Phosphonooxy)-2-propenoate | Generator | | 2-PHOSPHOENOLPYRUVate | Generator | | 2-Hydroxy-acrylic acid dihydrogen phosphate | HMDB | | 2-Phosphonooxyprop-2-enoate | HMDB | | 2-Phosphonooxyprop-2-enoic acid | HMDB | | p-enol-Pyruvate | HMDB | | PEP (phosphate) | HMDB | | Phosphoenolpyruvic acid | HMDB |
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| Chemical Formula | C3H5O6P |
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| Average Molecular Weight | 168.042 |
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| Monoisotopic Molecular Weight | 167.982374404 |
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| IUPAC Name | 2-(phosphonooxy)prop-2-enoic acid |
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| Traditional Name | phosphoenolpyruvic acid |
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| CAS Registry Number | 138-08-9 |
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| SMILES | OC(=O)C(=C)OP(O)(O)=O |
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| InChI Identifier | InChI=1S/C3H5O6P/c1-2(3(4)5)9-10(6,7)8/h1H2,(H,4,5)(H2,6,7,8) |
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| InChI Key | DTBNBXWJWCWCIK-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as phosphate esters. These are organic compounds containing phosphoric acid ester functional group, with the general structure R1P(=O)(R2)OR3. R1,R2 = O,N, or halogen atom; R3 = organyl group. |
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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 | Phosphate esters |
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| Alternative Parents | |
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| Substituents | - Phosphoric acid ester
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Carbonyl group
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | |
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| Role | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 2.2 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 9.2317 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 7.81 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 425.5 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 501.8 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 356.9 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 52.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 244.1 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 89.4 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 298.1 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 233.3 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 865.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 597.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 40.2 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 633.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 220.1 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 351.4 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 755.6 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 362.7 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 484.9 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Phosphoenolpyruvic acid,1TMS,isomer #1 | C=C(OP(=O)(O)O)C(=O)O[Si](C)(C)C | 1466.6 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,1TMS,isomer #2 | C=C(OP(=O)(O)O[Si](C)(C)C)C(=O)O | 1478.4 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1530.4 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1546.5 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1930.4 | Standard polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O | 1564.6 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O | 1542.3 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O | 1819.8 | Standard polar | 33892256 | | Phosphoenolpyruvic acid,3TMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1615.7 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,3TMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1606.9 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,3TMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C)C(=O)O[Si](C)(C)C | 1718.0 | Standard polar | 33892256 | | Phosphoenolpyruvic acid,1TBDMS,isomer #1 | C=C(OP(=O)(O)O)C(=O)O[Si](C)(C)C(C)(C)C | 1705.6 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,1TBDMS,isomer #2 | C=C(OP(=O)(O)O[Si](C)(C)C(C)(C)C)C(=O)O | 1732.5 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 1966.1 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 1933.9 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #1 | C=C(OP(=O)(O)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2197.6 | Standard polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O | 1982.0 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O | 1950.9 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,2TBDMS,isomer #2 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O | 2084.2 | Standard polar | 33892256 | | Phosphoenolpyruvic acid,3TBDMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2198.1 | Semi standard non polar | 33892256 | | Phosphoenolpyruvic acid,3TBDMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2144.2 | Standard non polar | 33892256 | | Phosphoenolpyruvic acid,3TBDMS,isomer #1 | C=C(OP(=O)(O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C)C(=O)O[Si](C)(C)C(C)(C)C | 2102.7 | Standard polar | 33892256 |
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| Disease References | | Alzheimer's disease |
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- Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
| | Frontotemporal dementia |
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- Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
| | Lewy body disease |
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- Tsuruoka M, Hara J, Hirayama A, Sugimoto M, Soga T, Shankle WR, Tomita M: Capillary electrophoresis-mass spectrometry-based metabolome analysis of serum and saliva from neurodegenerative dementia patients. Electrophoresis. 2013 Oct;34(19):2865-72. doi: 10.1002/elps.201300019. Epub 2013 Sep 6. [PubMed:23857558 ]
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