Thromboxane B1
(Synonyms: TXB1) 目录号 : GC45052The dihomo-γ-linolenic acid metabolite of COX/TXA synthase
Cas No.:64626-32-0
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Dihomo-g-linolenic acid (DGLA) is one of the 20-carbon fatty acids that can be metabolized to prostaglandins and thromboxanes (TXs) by cyclooxygenases 1 and 2 (COX-1/COX-2). The result of this metabolism in the human platelet yields TXB1. TXB1 is produced in small amounts when DGLA is added to washed suspensions of human platelets, while the major metabolism of this 1-series fatty acid is via 12-lipoxygenase. However, when co-incubated with amounts of ethanol often found in intoxicated humans, the metabolism of DGLA shifts to an enhanced production of TXB1. Urinary TXB1 or its metabolites may thus be a specific biomarker of prior ethanol abuse.
| Cas No. | 64626-32-0 | SDF | |
| 别名 | TXB1 | ||
| Canonical SMILES | O[C@@H]1[C@H](CCCCCCC(O)=O)[C@@H](/C=C/[C@@H](O)CCCCC)OC(O)C1 | ||
| 分子式 | C20H36O6 | 分子量 | 372.5 |
| 溶解度 | DMF: 50 mg/ml,DMSO: 25 mg/ml,Ethanol: 50 mg/ml,Methyl Acetate: 10 mg/ml,PBS (pH 7.2): .15 mg/ml | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.6846 mL | 13.4228 mL | 26.8456 mL |
| 5 mM | 0.5369 mL | 2.6846 mL | 5.3691 mL |
| 10 mM | 0.2685 mL | 1.3423 mL | 2.6846 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
A monoclonal anti-thromboxane B2 antibody
FEBS Lett 1988 May 9;232(1):46-50.PMID:3130275DOI:10.1016/0014-5793(88)80383-1.
A monoclonal antibody against thromboxane B2 which may be used in standard fluid phase radioimmunoassays with a detection limit of around 40 pg and a binding affinity of 1.98 X 10(9) M-1 is described. Limited crossreactivity could be observed only with structurally closely related compounds such as 2,3-dinor-thromboxane B2 (8.9%), Thromboxane B1 (15.7%) and thromboxane B3 (39.7%). Detectable crossreactivity with 11-dehydro-thromboxane B2, omega-carboxy-thromboxane B2, omega-hydroxy-thromboxane B2, prostaglandins of the D-, E- and F-type as well as metabolites of prostacyclin was lacking. The monoclonal anti-thromboxane B2 antibody proved well suited for measuring the thromboxane B2 content in tissue culture supernatants as well as in human serum.
Metabolism of 8,11,14-eicosatrienoic acid in human platelets
Biochim Biophys Acta 1976 Aug 23;441(2):193-200.PMID:952987DOI:10.1016/0005-2760(76)90162-4.
The following labeled compounds were isolated and identified after incubation of 8,11,14-eicosatrien [1-14C] oic acid with human platelets: 12-L-hydroxy-8,10,14-eicosatrienoic acid, 8,11,12-trihydroxy-9,14-eicosadienoic acid, 8,9,12-trihydroxy-10,14-eicosadienoic acid, 12-L-hydroxy-8,10-heptadecadienoic acid, prostaglandin E1, prostaglandin D1, and 8-(1-hydroxy-3-oxopropyl)-9,12-dihydroxy-10-heptadecenoic acid (Thromboxane B1).
An alternate pathway to long-chain polyunsaturates: the FADS2 gene product Delta8-desaturates 20:2n-6 and 20:3n-3
J Lipid Res 2009 Jun;50(6):1195-202.PMID:19202133DOI:10.1194/jlr.M800630-JLR200.
The mammalian Delta6-desaturase coded by fatty acid desaturase 2 (FADS2; HSA11q12-q13.1) catalyzes the first and rate-limiting step for the biosynthesis of long-chain polyunsaturated fatty acids. FADS2 is known to act on at least five substrates, and we hypothesized that the FADS2 gene product would have Delta8-desaturase activity. Saccharomyces cerevisiae transformed with a FADS2 construct from baboon neonate liver cDNA gained the function to desaturate 11,14-eicosadienoic acid (20:2n-6) and 11,14,17-eicosatrienoic acid (20:3n-3) to yield 20:3n-6 and 20:4n-3, respectively. Competition experiments indicate that Delta8-desaturation favors activity toward 20:3n-3 over 20:2n-6 by 3-fold. Similar experiments show that Delta6-desaturase activity is favored over Delta8-desaturase activity by 7-fold and 23-fold for n-6 (18:2n-6 vs 20:2n-6) and n-3 (18:3n-3 vs 20:3n-3), respectively. In mammals, 20:3n-6 is the immediate precursor of prostaglandin E1 and Thromboxane B1. 20:3n-6 and 20:4n-3 are also immediate precursors of long-chain polyunsaturated fatty acids arachidonic acid and eicosapentaenoic acid, respectively. These findings provide unequivocal molecular evidence for a novel alternative biosynthetic route to long-chain polyunsaturated fatty acids in mammals from substrates previously considered to be dead-end products.