| Record Information |
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| Version | 2.0 |
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| Created at | 2022-05-11 16:49:31 UTC |
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| Updated at | 2022-05-11 16:49:31 UTC |
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| NP-MRD ID | NP0087432 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | 20-Hydroxyeicosatetraenoic acid |
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| Description | 20-Hydroxyeicosatetraenoic acid belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. 20-Hydroxyeicosatetraenoic acid (20-HETE) is a metabolite of arachidonic acid. 20-Hydroxyeicosatetraenoic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). In humans, 20-hydroxyeicosatetraenoic acid is involved in mefenamic acid action pathway. NO inhibits the formation of 20-HETE formation in renal and cerebral arteries and that a fall in levels of 20-HETE contributes the cyclic GMP-independent dilator effect of NO to activate the large-conductance Ca2+-activated K+-channels and to dilate the cerebral arteries. Cytochrome P450 enzymes of the 4A and 4F families catalyze the omega-hydroxylation of arachidonic acid and produce 20-HETE. The vasoconstrictor response to 20-HETE is associated with activation of protein kinase, Rho kinase and the mitogen activated protein (MAP) kinase pathway C. 20-HETE also increases intracellular Ca2+ by causing the depolarization of vascular smooth muscle membrane secondary to blocking the large-conductance Ca2+-activated K+-channels and by a direct effect on L-type Ca channels. There is an important interaction between nitric oxide (NO) and the formation of 20-HETE production. Elevations in the production of 20-HETE mediate the myogenic response of skeletal, renal and cerebral arteries to elevations in transmural pressure. Metabolite produced during NADPH dependent enzymatic oxidation of arachidonic acid. 20-HETE is a potent constrictor or renal, cerebral and mesenteric arteries. |
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| Structure | OCCCCCC=CCC=CCC=CCC=CCCCC(O)=O InChI=1S/C20H32O3/c21-19-17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20(22)23/h1,3-4,6-7,9-10,12,21H,2,5,8,11,13-19H2,(H,22,23) |
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| Synonyms | | Value | Source |
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| 20-Hydroxyeicosatetraenoate | Generator |
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| Chemical Formula | C20H32O3 |
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| Average Mass | 320.4663 Da |
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| Monoisotopic Mass | 320.23514 Da |
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| IUPAC Name | 20-hydroxyicosa-5,8,11,14-tetraenoic acid |
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| Traditional Name | 20-hydroxyarachidonic acid |
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| CAS Registry Number | Not Available |
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| SMILES | OCCCCCC=CCC=CCC=CCC=CCCCC(O)=O |
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| InChI Identifier | InChI=1S/C20H32O3/c21-19-17-15-13-11-9-7-5-3-1-2-4-6-8-10-12-14-16-18-20(22)23/h1,3-4,6-7,9-10,12,21H,2,5,8,11,13-19H2,(H,22,23) |
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| InChI Key | NNDIXBJHNLFJJP-UHFFFAOYSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | 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 long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Fatty Acyls |
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| Sub Class | Fatty acids and conjugates |
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| Direct Parent | Long-chain fatty acids |
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| Alternative Parents | |
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| Substituents | - Long-chain fatty acid
- Hydroxy fatty acid
- Unsaturated fatty acid
- Straight chain fatty acid
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Primary alcohol
- Organooxygen compound
- Carbonyl group
- Alcohol
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | Not Available |
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| Physical Properties |
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| State | Not Available |
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| Experimental 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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| Predicted Properties | |
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