Record Information |
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Version | 2.0 |
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Created at | 2024-09-09 22:17:26 UTC |
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Updated at | 2024-09-09 22:17:29 UTC |
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NP-MRD ID | NP0334123 |
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Secondary Accession Numbers | None |
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Natural Product Identification |
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Common Name | 6-trans-Leukotriene B4 |
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Description | 6-Trans-Leukotriene B4 is an enzymatic metabolite of leukotriene B4(LTB4). A greater increase in LTB4 and 6-trans-LTB4 (one of its hydroxylated 5-lipoxygenase metabolic derivatives) occurs after stimulation with calcium-ionophore in asthma patients compared to healthy controls. LTB4 is the major metabolite in neutrophil polymorphonuclear leukocytes. Leukotrienes are metabolites of arachidonic acid derived from the action of 5-LO (5-lipoxygenase). The immediate product of 5-LO is LTA4 (leukotriene A4), which is enzymatically converted into either LTB4 (leukotriene B4) by LTA4 hydrolase or LTC4 (leukotriene C4) by LTC4 synthase. The regulation of leukotriene production occurs at various levels, including expression of 5-LO, translocation of 5-LO to the perinuclear region and phosphorylation to either enhance or inhibit the activity of 5-LO. Biologically active LTB4 is metabolized by w-oxidation carried out by specific cytochrome P450s (CYP4F) followed by beta-oxidation from the w-carboxy position and after CoA ester formation. (PMID: 17623009 , 2176862 , 7649996 , 9667737 , 2125732 )
Leukotrienes are eicosanoids. The eicosanoids consist of the prostaglandins (PGs), thromboxanes (TXs), leukotrienes (LTs) and lipoxins (LXs). The PGs and TXs are collectively identified as prostanoids. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes) and leukotrienes from leukocytes, hence the derivation of their names. All mammalian cells except erythrocytes synthesize eicosanoids. These molecules are extremely potent, able to cause profound physiological effects at very dilute concentrations. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signaling pathways. [HMDB] |
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Structure | [H]\C(CCCCC)=C(\[H])C[C@@]([H])(O)C(\[H])=C(/[H])\C(\[H])=C(/[H])\C(\[H])=C(/[H])[C@@]([H])(O)CCCC(O)=O InChI=1S/C20H32O4/c1-2-3-4-5-6-9-13-18(21)14-10-7-8-11-15-19(22)16-12-17-20(23)24/h6-11,14-15,18-19,21-22H,2-5,12-13,16-17H2,1H3,(H,23,24)/b8-7+,9-6+,14-10+,15-11+/t18-,19-/m1/s1 |
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Synonyms | Value | Source |
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(5S,6E,8E,10E,12R,14E)-5,12-Dihydroxyicosa-6,8,10,14-tetraenoate | Generator |
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Chemical Formula | C20H32O4 |
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Average Mass | 336.4720 Da |
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Monoisotopic Mass | 336.23006 Da |
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IUPAC Name | (5S,6E,8E,10E,12R,14E)-5,12-dihydroxyicosa-6,8,10,14-tetraenoic acid |
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Traditional Name | (5S,6E,8E,10E,12R,14E)-5,12-dihydroxyicosa-6,8,10,14-tetraenoic acid |
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CAS Registry Number | Not Available |
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SMILES | [H]\C(CCCCC)=C(\[H])C[C@@]([H])(O)C(\[H])=C(/[H])\C(\[H])=C(/[H])\C(\[H])=C(/[H])[C@@]([H])(O)CCCC(O)=O |
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InChI Identifier | InChI=1S/C20H32O4/c1-2-3-4-5-6-9-13-18(21)14-10-7-8-11-15-19(22)16-12-17-20(23)24/h6-11,14-15,18-19,21-22H,2-5,12-13,16-17H2,1H3,(H,23,24)/b8-7+,9-6+,14-10+,15-11+/t18-,19-/m1/s1 |
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InChI Key | VNYSSYRCGWBHLG-IMSBXONOSA-N |
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Experimental Spectra |
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| Not Available | 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 | Not Available |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as leukotrienes. These are eicosanoids containing a hydroxyl group attached to the aliphatic chain of an arachidonic acid. Leukotrienes have four double bonds, three (and only three) of which are conjugated. |
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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 | Eicosanoids |
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Direct Parent | Leukotrienes |
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Alternative Parents | |
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Substituents | - Leukotriene
- Hydroxyeicosatetraenoic acid
- Long-chain fatty acid
- Hydroxy fatty acid
- Fatty acid
- Unsaturated fatty acid
- Secondary alcohol
- Monocarboxylic acid or derivatives
- Carboxylic acid
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- 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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General References | - Murphy RC, Gijon MA: Biosynthesis and metabolism of leukotrienes. Biochem J. 2007 Aug 1;405(3):379-95. doi: 10.1042/BJ20070289. [PubMed:17623009 ]
- Wainwright S, Falck JR, Yadagiri P, Powell WS: Metabolism of 12(S)-hydroxy-5,8,10,14-eicosatetraenoic acid and other hydroxylated fatty acids by the reductase pathway in porcine polymorphonuclear leukocytes. Biochemistry. 1990 Oct 30;29(43):10126-35. doi: 10.1021/bi00495a017. [PubMed:2176862 ]
- Wheelan P, Murphy RC: Metabolism of 6-trans-isomers of leukotriene B4 in cultured hepatoma cells and in human polymorphonuclear leukocytes. Identification of a delta 6-reductase metabolic pathway. J Biol Chem. 1995 Aug 25;270(34):19845-52. doi: 10.1074/jbc.270.34.19845. [PubMed:7649996 ]
- Primiano T, Li Y, Kensler TW, Trush MA, Sutter TR: Identification of dithiolethione-inducible gene-1 as a leukotriene B4 12-hydroxydehydrogenase: implications for chemoprevention. Carcinogenesis. 1998 Jun;19(6):999-1005. doi: 10.1093/carcin/19.6.999. [PubMed:9667737 ]
- Radeau T, Chavis C, Damon M, Michel FB, Crastes de Paulet A, Godard PH: Enhanced arachidonic acid metabolism and human neutrophil migration in asthma. Prostaglandins Leukot Essent Fatty Acids. 1990 Oct;41(2):131-8. doi: 10.1016/0952-3278(90)90066-t. [PubMed:2125732 ]
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