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脂肪氧化酶 | 9029-60-1

中文名称
脂肪氧化酶
中文别名
不饱和脂肪酸氧化还原酶;脂肪氧化酶,从大豆所得;脂氧酶(大豆)
英文名称
linoleate 13S-lipoxygenase
英文别名
13-lipoxidase;carotene oxidase;13-lipoperoxidase;fat oxidase;13-lipoxydase;lionoleate:O2 13-oxidoreductase;5-lipoxygenase
CAS
9029-60-1
化学式
mdl
——
分子量
——
InChiKey
——
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 稳定性/保质期:
    Analysis Note: The protein was determined by the biuret method. Application: The soybean enzyme will use arachidonic acid as a substrate, with approximately 15% of its activity indicated using linoleic acid. The product of arachidonic acid oxidation is either 12-hydroperoxyarachidonic acid (12-HPETE) or 15-hydroperoxyarachidonic acid (15-HPETE). Biochemical/Physiological Actions: This enzyme catalyzes the hydroperoxidation of lipids containing a cis,cis-1,4-pentadiene structure. Unit Definition: One unit will cause an increase in A234 of 0.001 per minute at pH 9.0 and 25°C when linoleic acid is the substrate in a 3.0 ml volume (1 cm light path). One A234 unit is equivalent to the oxidation of 0.12 μmole of linoleic acid. Physical Form: The product contains stabilizers and NaCl.

反应信息

  • 作为试剂:
    描述:
    花生四烯酸脂肪氧化酶 、 DL-dithiothreitol 、 5’-三磷酸腺苷 、 calcium chloride 作用下, 以 aq. phosphate buffer 为溶剂, 生成 5-HPETE
    参考文献:
    名称:
    Ascorbic acid 6-palmitate: a potent inhibitor of human and soybean lipoxygenase-dependent lipid peroxidation
    摘要:
    摘要 目的

    脂氧合酶(LOX)是参与白三烯和活性氧自由基生物合成的关键酶,与炎症性疾病的病理生理学有关。本研究旨在评估水溶性抗氧化剂抗坏血酸及其亲脂性衍生物抗坏血酸6-棕榈酸酯(Vcpal)对体外多形核淋巴细胞5-LOX和大豆15-LOX(sLOX)的抑制作用。

    方法

    通过分光光度法和高效液相色谱法测定LOX活性,测量5-羟过氧基二十碳四烯酸(5-HETE)和脂质过氧化物的产物。进行基质依赖型酶动力学和对接研究,以了解抑制的性质。

    关键发现

    与对sLOX的抑制效果相比,Vcpal强力抑制5-LOX(IC50分别为2.5和10.3μm,P=0.003)。此外,Vcpal比已知的合成药物苯哌酮和诺地醌酸(P=0.0007)更强烈地抑制5-LOX。酶动力学研究表明Vcpal是5-LOX的非竞争性可逆抑制剂。体外分子对接显示,相较于抗坏血酸,Vcpal具有较高的MolDock和Rerank分数,与体内结果相互印证。

    结论

    体外和对接研究均表明Vcpal而不是抗坏血酸是5-LOX和sLOX诱导的脂质过氧化的非竞争性抑制剂,提示亲脂性质在抑制过程中起关键作用。

    DOI:
    10.1111/jphp.12200
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同类化合物

邻苯二酚-1,2-二加氧酶 脂肪氧化酶 原儿茶酸3,4-双加氧酶 7,8-dihydroneopterin oxygenase homogentisate 1,2-dioxygenase 2-oxoadipate dioxygenase/decarboxylase 3-mercaptopropionate dioxygenase exo-cleaving rubber dioxygenase aerobic 5,6-dimethylbenzimidazole synthase fatty acid alpha-dioxygenase [1-hydroxy-2-(trimethylamino)ethyl]phosphonate dioxygenase (glycine-betaine-forming) endo-cleaving rubber dioxygenase oleate 10S-lipoxygenase (hydroxymethyl)phosphonate dioxygenase all-trans-8'-apo-beta-carotenal 15,15'-oxygenase 5-aminosalicylate 1,2-dioxygenase isoeugenol monooxygenase crocetin dialdehyde synthase acireductone dioxygenase (Ni2+-requiring) 8'-apo-carotenoid 13,14-cleaving dioxygenase 4-hydroxy-3-prenylphenylpyruvate oxygenase 2-amino-1-hydroxyethylphosphonate dioxygenase (glycine-forming) (3,5-dihydroxyphenyl)acetyl-CoA 1,2-dioxygenase acetylacetone-cleaving enzyme 2-amino-5-chlorophenol 1,6-dioxygenase 2-aminophenol 1,6-dioxygenase methylphosphonate synthase all-trans-10'-apo-beta-carotenal 13,14-cleaving dioxygenase carotenoid-9',10'-cleaving dioxygenase carlactone synthase 2-hydroxyethylphosphonate dioxygenase 9-cis-beta-carotene 9',10'-cleaving dioxygenase 8'-apo-beta-carotenoid 14',13'-cleaving dioxygenase carotenoid isomerooxygenase acireductone dioxygenase [iron(II)-requiring] hydroquinone 1,2-dioxygenase linoleate 9S-lipoxygenase indoleamine 2,3-dioxygenase beta-carotene 15,15'-dioxygenase linoleate 8R-lipoxygenase 5-nitrosalicylate dioxygenase linoleate 10R-lipoxygenase linolenate 9R-lipoxygenase torulene dioxygenase 1,2-dihydroxynaphthalene dioxygenase gallate dioxygenase quercetin 2,3-dioxygenase sulfur oxygenase/reductase 4-hydroxyphenylpyruvate dioxygenase 9-cis-epoxycarotenoid dioxygenase