dTDP-β-L-fucose

• 分子结构分类: 有机化合物 - 核苷、核苷酸和类似物 - 嘧啶核苷酸
• 英文名称: dTDP-β-L-fucose
• 英文别名: [hydroxy-[[(2R,3S,5R)-3-hydroxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy]phosphoryl] [(2R,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl] hydrogen phosphate
• 化学式: C₁₆H₂₆N₂O₁₅P₂
• 分子量: 548.334
• InChiKey: ZOSQFDVXNQFKBY-RZEHBLOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -4.8
• 重原子数：
  35
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  251
• 氢给体数：
  7
• 氢受体数：
  15

反应信息

• 作为产物：
  描述：

  dibenzyl 2,3,4-tri-O-benzoyl-β-L-fucopyranosyl 1-phosphate 在 palladium on activated charcoal 、 无机焦磷酸酶 Tris-HCl buffer 、 A_. thermoaerophilus DSM 10155 RmlA₃ thymidylyltransferase 、 氢气 、 碳酸氢钠 、 magnesium chloride 作用下， 以 甲醇 为溶剂， 37.0 ℃ 、344.74 kPa 条件下， 反应 28.0h， 生成 dTDP-β-L-fucose
  参考文献：
  名称：

  Exploiting Nucleotidylyltransferases To Prepare Sugar Nucleotides

  摘要：

  Enzymatic approaches to prepare sugar nucleotides are gaining in importance and offer several advantages over chemical synthesis including high yields and stereospecificity. We report the cloning, expression, and purification of two new wild-type thymidylyltransferases and observed catalysis with a wide variety of substrates. Significant product inhibition was not observed with the enzymes studied over a 24 h period, enabling the efficient preparation of 15 sugar nucleotides, clearly demonstrating the synthetic utility of these biocatalysts.

  DOI：

  10.1021/ol0630853

文献信息

• One-Step Synthesis of Labeled Sugar Nucleotides for Protein <i>O</i>-GlcNAc Modification Studies by Chemical Function Analysis of an Archaeal Protein
  作者：Rahman M. Mizanur、Firoz A. Jaipuri、Nicola L. Pohl

  DOI：10.1021/ja044117p

  日期：2005.1.1

  Herein we present the chemical function analysis of a recombinant sugar nucleotidyltransferase from the hyperthermophile Pyrococcus furiosus and its use in the one-pot synthesis of chloroacetyl- and alkyne-tagged analogues of uridinediphospho-N-acetylglucosamine (UDP-GlcNAc). The gene was originally annotated as a glucose-1-phosphate deoxythymidylyltransferase; however, kinetic analysis of a panel of sugar-1-phosphates with the protein shows that it is better described as a bifunctional protein that synthesizes UDP-GlcNAc from glucosamine-1-phosphate and acetyl coenzyme A (CoA). A new mass-spectrometry-based assay for the rapid analysis of the acyltransferase activity demonstrates that the enzyme can also accept cheaper truncated N-acetylcysteamine thioester substrates in place of the natural acetyl CoA. The enzyme can tolerate alkyne or chloride substitutions in the acyl moiety, thereby allowing the facile synthesis of tagged sugar nucleotides for future use in protein O-GlcNAc modification studies.
• Unusually Broad Substrate Tolerance of a Heat-Stable Archaeal Sugar Nucleotidyltransferase for the Synthesis of Sugar Nucleotides
  作者：Rahman M. Mizanur、Corbin J. Zea、Nicola L. Pohl

  DOI：10.1021/ja046070d

  日期：2004.12.1

  Herein, we report the first cloning, recombinant expression, and synthetic utility of a sugar nucleotidyltransferase from any archaeal source and demonstrate by an electrospray ionization mass spectrometry (ESI-MS)-based assay its unusual tolerance of heat, pH, and sugar substrates. The metal-ion-dependent enzyme from Pyrococcus furiosus DSM 3638 showed a relatively high degree of acceptance of glucose-1-phosphate (Glc1P), mannose-1-phosphate(Man1P), galactose-1-phosphate (Gal1P), fucose-1-phosphate, glucosamine-1-phosphate, galactosamine-1-phosphate, and N-acetylglucosamine-1-phosphate with uridine and deoxythymidine triphosphate (UTP and dTTP, respectively). The apparent Michaelis constants for Glc1P, Man1P, and Gal1P are 13.0 +/- 0.7, 15 +/- 1, and 22 +/- 2 muM, respectively, with corresponding turnover numbers of 2.08, 1.65, and 1.32 s(-1), respectively. An initial velocity study indicated an ordered bi-bi catalytic mechanism for this enzyme. The temperature stability and inherently broad substrate tolerance of this archaeal enzyme promise an effective reagent for the rapid chemoenzymatic synthesis of a range of natural and unnatural sugar nucleotides for in vitro glycosylation studies and highlight the potential of archaea as a source of new enzymes for synthesis.
• Exploiting Nucleotidylyltransferases To Prepare Sugar Nucleotides
  作者：Shannon C. Timmons、Roy H. Mosher、Sheryl A. Knowles、David L. Jakeman

  DOI：10.1021/ol0630853

  日期：2007.3.1

  Enzymatic approaches to prepare sugar nucleotides are gaining in importance and offer several advantages over chemical synthesis including high yields and stereospecificity. We report the cloning, expression, and purification of two new wild-type thymidylyltransferases and observed catalysis with a wide variety of substrates. Significant product inhibition was not observed with the enzymes studied over a 24 h period, enabling the efficient preparation of 15 sugar nucleotides, clearly demonstrating the synthetic utility of these biocatalysts.