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4α-Methyl-5α-ergosta-8,14,24(241)-trien-3β-ol | 74635-33-9

中文名称
——
中文别名
——
英文名称
4α-Methyl-5α-ergosta-8,14,24(241)-trien-3β-ol
英文别名
4alpha-Methyl-5alpha-ergosta-8,14,24(28)-trien-3beta-ol;(3S,4S,5S,10S,13R,17R)-4,10,13-trimethyl-17-[(2R)-6-methyl-5-methylideneheptan-2-yl]-2,3,4,5,6,7,11,12,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
4α-Methyl-5α-ergosta-8,14,24(24<sup>1</sup>)-trien-3β-ol化学式
CAS
74635-33-9
化学式
C29H46O
mdl
——
分子量
410.684
InChiKey
HLAWVOWADPNAGN-BAHZUFOISA-N
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

计算性质

  • 辛醇/水分配系数(LogP):
    7.9
  • 重原子数:
    30
  • 可旋转键数:
    5
  • 环数:
    4.0
  • sp3杂化的碳原子比例:
    0.79
  • 拓扑面积:
    20.2
  • 氢给体数:
    1
  • 氢受体数:
    1

上下游信息

  • 上游原料
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    乙酸酐4α-Methyl-5α-ergosta-8,14,24(241)-trien-3β-ol吡啶 作用下, 生成 4α-methyl-5α-ergosta-8,14,24(28)-trien-3β-yl acetate
    参考文献:
    名称:
    4α-Methyl-5α,14β-ergosta-8,24(241)-dien-3β-ol (“triticusterol”): the first naturally occurring 14β(H)-steroid
    摘要:
    The structure of triticusterol isolated from the germ oil of wheat (Triticum aestivum L.; Gramineae) was established to be 4α-methyl-5α,14β-ergosta-8,24(241)-dien-3β-ol on the basis of spectroscopic data. This is the first example of a naturally occurring compound with a 14β(H)-steroid skeleton.
    DOI:
    10.1039/a808508k
  • 作为产物:
    描述:
    齿孔醇 在 Cryptococcus gattii cytochrome P450 family 51 作用下, 生成 4α-Methyl-5α-ergosta-8,14,24(241)-trien-3β-ol
    参考文献:
    名称:
    The Investigational Drug VT-1129 Is a Highly Potent Inhibitor of Cryptococcus Species CYP51 but Only Weakly Inhibits the Human Enzyme
    摘要:
    摘要 隐球菌病是一种威胁生命的疾病,通常与艾滋病毒感染有关。三种 隐球菌 种 CYP51 酶被纯化并催化了羊毛甾醇、桉叶油醇和欧曲唑醇的 14α 去甲基化。研究药物 VT-1129 与所有三种 CYP51 蛋白都紧密结合(解离常数[...])。 K d 范围为 14 至 25 nM),其亲和力与氟康唑、伏立康唑、伊曲康唑、克霉唑和酮康唑相似 ( K d 范围为 4 至 52 nM),而 VT-1129 与人类 CYP51 的结合力较弱 ( K d 为 4.53 μM)。在抑制隐球菌 CYP51 活性方面,VT-1129 与传统的三唑类抗真菌药物一样有效(50% 抑制浓度 [IC 50 范围为 0.14 至 0.20 μM),而它对人类 CYP51 活性的抑制作用很弱(IC 50 600 μM)。此外,VT-1129 对人类 CYP2C9、CYP2C19 和 CYP3A4 也有微弱的抑制作用,表明其药物相互作用潜力较低。最后,VT-1129 的细胞作用模式被证实为抑制 CYP51,导致麦角甾醇和麦角甾-7-烯醇耗竭,勃立醇、obtusifolione 和羊毛甾醇/obtusifoliol 在细胞膜中积累。
    DOI:
    10.1128/aac.00349-16
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文献信息

  • Functional importance for developmental regulation of sterol biosynthesis in Acanthamoeba castellanii
    作者:Wenxu Zhou、Andrew G.S. Warrilow、Crista D. Thomas、Emilio Ramos、Josie E. Parker、Claire L. Price、Boden H. Vanderloop、Paxtyn M. Fisher、Michael D. Loftis、Diane E. Kelly、Steven L. Kelly、W. David Nes
    DOI:10.1016/j.bbalip.2018.07.004
    日期:2018.10
    concentration of inhibitor amoeboid cells rapidly convert to encysted cells unable to excyst. The correlation between stage-specific sterol compositions and the physiological effects of ergosterol biosynthesis inhibitors suggests that amoeba fitness is controlled mainly by developmentally-regulated changes in the phytosterol B-ring; paired interference in the ∆5,7-sterol biosynthesis (to ∆5,7) - metabolism
    Castellanii 棘阿米巴 (Ac) 的甾醇代谢组产生 25 种甾醇。克隆的 AcCYP51 的底物筛选显示钝叶醇是转化为 Δ8,14-甾醇 (<95%) 的天然底物。[2H3-甲基]蛋氨酸与完整培养物一起孵育,显示 C28-麦角甾醇包含 2-2H 原子,C29-7-脱氢多孔甾醇包含 5 个 2H-原子、甾醇的自然分布、CYP51 和先前发表的甾醇甲基转移酶 (SMT) 数据表明从原甾醇环木菠萝烯醇到C28-和C29-甾醇产物的单独的Δ24(28)-和Δ25(27)-烯烃途径。在基于细胞的培养中,我们通过显微镜和台盼蓝染色观察到生长和成囊阶段甾醇组成的显着变化;滋养体具有 C28/C29-Δ5,7-甾醇,活的包囊细胞(成熟囊肿)主要具有 C29-Δ5-甾醇,非活包囊细胞具有 C28/C29-Δ5,7-甾醇,其周转因压力而异与膜流动性改变相关的 6-甲基芳香族甾醇导致裂解。使用酵母甾醇营养缺陷型
  • Obtusifoliol 14α-Demethylase (CYP51) Antisense Arabidopsis Shows Slow Growth and Long Life
    作者:Masayo Kushiro、Takeshi Nakano、Ken Sato、Kazutoshi Yamagishi、Tadao Asami、Akihiko Nakano、Suguru Takatsuto、Shozo Fujioka、Yutaka Ebizuka、Shigeo Yoshida
    DOI:10.1006/bbrc.2001.5122
    日期:2001.7
    Obtusifoliol 14alpha-demethylase is a plant orthologue of sterol 14alpha-demethylase (CYP51) essential in sterol biosynthesis. We have prepared CYP51 antisense Arabidopsis in order to shed light on the sterol and steroid hormone biosynthesis in plants. Arabidopsis putative CYP51 cDNA (AtCYP51) was obtained from Arabidopsis expressed sequence tag (EST) library and its function was examined in a yeast
    Obtusifoliol14α-脱甲基酶是固醇生物合成中必不可少的固醇14α-脱甲基酶(CYP51)的植物直系同源物。我们准备了CYP51反义拟南芥,以阐明植物中的甾醇和甾类激素的生物合成。从拟南芥表达序列标签(EST)文库中获得拟南芥CYP51 cDNA(AtCYP51),并在酵母羊毛甾醇14α-脱甲基酶(Erg11)缺陷型突变体中检测其功能。与酵母Erg11信号锚肽融合的重组AtCYP51蛋白能够补充erg11突变,从而证实AtCYP51是功能性固醇14α-脱甲基酶。然后,在CaMV35S启动子下,通过在反义方向上携带带有AtCYP51的pBI载体,将AtCYP51用于产生转基因拟南芥。所得的转基因植物的AtCYP51 mRNA的积累减少,内源性tus倍叶醇的量增加。它们在生长早期显示出半矮表型,并且比对照植物具有更长的寿命。这个新发现的表型与以前表征的缺乏油菜素固醇(BR)的菜油甾醇生物合成突变体不同。
  • Characterization and catalytic properties of the sterol 14α-demethylase from <i>Mycobacterium tuberculosis</i>
    作者:Aouatef Bellamine、Anil T. Mangla、W. David Nes、Michael R. Waterman
    DOI:10.1073/pnas.96.16.8937
    日期:1999.8.3

    Sterol 14α-demethylase encoded by CYP51 is a mixed-function oxidase involved in sterol synthesis in eukaryotic organisms. Completion of the Mycobacterium tuberculosis genome project revealed that a protein having homology to mammalian 14α-demethylases might be present in this bacterium. Using genomic DNA from mycobacterial strain H 37 Rv, we have established unambiguously that the CYP51-like gene encodes a bacterial sterol 14α-demethylase. Expression of the M. tuberculosis CYP51 gene in Escherichia coli yields a P450, which, when purified to homogeneity, has the predicted molecular mass, ca. 50 kDa on SDS/PAGE, and binds both sterol substrates and azole inhibitors of P450 14α-demethylases. It catalyzes 14α-demethylation of lanosterol, 24,25-dihydrolanosterol, and obtusifoliol to produce the 8,14-dienes stereoselectively as shown by GC/MS and 1 H NMR analysis. Both flavodoxin and ferredoxin redox systems are able to support this enzymatic activity. Structural requirements of a 14α-methyl group and Δ 8(9) -bond were established by comparing binding of pairs of sterol substrate that differed in a single molecular feature, e.g., cycloartenol paired with lanosterol. These substrate requirements are similar to those established for plant and animal P450 14α-demethylases. From the combination of results, the interrelationships of substrate functional groups within the active site show that oxidative portions of the sterol biosynthetic pathway are present in prokaryotes.

    CYP51编码的类固醇14α-去甲基酶是参与真核生物类固醇合成的混合功能氧化酶。完成结核分枝杆菌基因组项目揭示,可能存在一种与哺乳动物14α-去甲基酶同源的蛋白质。使用结核分枝杆菌H37Rv菌株的基因组DNA,我们已经明确确定CYP51类似基因编码细菌类固醇14α-去甲基酶。在大肠杆菌中表达M. tuberculosis CYP51基因会产生P450,纯化后在SDS/PAGE上显示预测的分子量约为50 kDa,并结合类固醇底物和P450 14α-去甲基酶的唑类抑制剂。它能催化蜡甾醇、24,25-二氢蜡甾醇和钝叶桐酚的14α-去甲基化反应,产生8,14-二烯,经GC/MS和1H NMR分析表明它有立体选择性。类黄酮蛋白和铁蛋白氧化还原系统都能支持这种酶活性。通过比较具有单一分子特征的一对类固醇底物的结合,如环油菜醇与蜡甾醇,确定了14α-甲基和Δ8(9)-键的结构要求。这些底物要求类似于已经确定的植物和动物P450 14α-去甲基酶的要求。从结果的组合来看,底物功能基团在活性位点内的相互关系表明类固醇生物合成途径的氧化部分存在于原核生物中。
  • Obtusifoliol 14a-demethylase
    申请人:——
    公开号:US20030217384A1
    公开(公告)日:2003-11-20
    This invention relates to an isolated nucleic acid fragment encoding a cytochrome P450, more specifically obtusifoliol 14&agr;-demethylase. The invention also relates to the construction of a recombinant DNA construct encoding all or a portion of obtusifoliol 14&agr;-demethylase, in sense or antisense orientation, wherein expression of the recombinant DNA construct results in production of altered levels of obtusifoliol 14&agr;-demethylase in a transformed host cell.
    本发明涉及一种分离的核酸片段,该片段编码细胞色素P450,更具体地说是obtusifoliol 14&agr;-demethylase。本发明还涉及以有义或反义取向构建编码全部或部分obtusifoliol 14&agr;-demethylase的重组DNA构建体,其中重组DNA构建体的表达会导致转化宿主细胞中obtusifoliol 14&agr;-demethylase水平的改变。
  • OBTUSIFOLIOL 14A- DEMETHYLASE
    申请人:E. I. du Pont de Nemours and Company
    公开号:EP1545189A1
    公开(公告)日:2005-06-29
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