N-(4-pentenoyl)-O-[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl]-(S)-tyrosine cyanomethyl ester | 935458-03-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: N-(4-pentenoyl)-O-[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl]-(S)-tyrosine cyanomethyl ester
• CAS: 935458-03-0
• 化学式: C₄₂H₅₂N₂O₂₁
• 分子量: 920.876
• InChiKey: XHUNNMIHABJIAT-OKCUOOOQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.75
• 重原子数：
  65.0
• 可旋转键数：
  21.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  300.21
• 氢给体数：
  1.0
• 氢受体数：
  22.0

反应信息

• 作为反应物：
  描述：

  N-(4-pentenoyl)-O-[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl]-(S)-tyrosine cyanomethyl ester 、 C₁₉H₂₃N₈O₁₃P₂^(3-)*3C₁₆H₃₆N⁽¹⁺⁾ 以 乙腈 为溶剂， 反应 24.0h， 以48%的产率得到C₅₉H₇₅N₉O₃₃P₂
  参考文献：
  名称：

  Site-Specific Incorporation of Glycosylated Serine and Tyrosine Derivatives into Proteins

  摘要：

  Glycosylation of proteins can have a dramatic effect on their physical, chemical, and biological properties. Analogues of dihydrofolate reductase and firefly luciferase containing glycosylated amino acids at single, predetermined sites have been elaborated. Misacylated suppressor tRNAs activated with glycosylated serine and tyrosine derivatives were used for suppression of the nonsense codons in a cell-free protein biosynthesizing system, thereby permitting the preparation of the desired glycosylated proteins. In this fashion, it was possible to obtain proteins containing both mono- and diglycosylated amino acids, including glycosylated serine and tyrosine moieties. For the modified firefly luciferases, the effect of these substitutions on the wavelength of the light emitted by firefly luciferase was investigated. The maximum wavelength for mutants containing peracetylated glycosylated serine derivatives at position 284 showed a red shift in the emission spectra. For mutants containing glycosylated tyrosines, the red shift was observed only when the carbohydrate moiety was fully deacetylated.

  DOI：

  10.1021/ja067466n
• 作为产物：
  描述：

  1',2',3',6',2,3,4,6-octa-O-acetyl-β-D-lactose 在 哌啶 、 三氟化硼乙醚 、 碳酸氢钠 、 sodium carbonate 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 80.5h， 生成 N-(4-pentenoyl)-O-[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-β-D-glucopyranosyl]-(S)-tyrosine cyanomethyl ester
  参考文献：
  名称：

  Site-Specific Incorporation of Glycosylated Serine and Tyrosine Derivatives into Proteins

  摘要：

  Glycosylation of proteins can have a dramatic effect on their physical, chemical, and biological properties. Analogues of dihydrofolate reductase and firefly luciferase containing glycosylated amino acids at single, predetermined sites have been elaborated. Misacylated suppressor tRNAs activated with glycosylated serine and tyrosine derivatives were used for suppression of the nonsense codons in a cell-free protein biosynthesizing system, thereby permitting the preparation of the desired glycosylated proteins. In this fashion, it was possible to obtain proteins containing both mono- and diglycosylated amino acids, including glycosylated serine and tyrosine moieties. For the modified firefly luciferases, the effect of these substitutions on the wavelength of the light emitted by firefly luciferase was investigated. The maximum wavelength for mutants containing peracetylated glycosylated serine derivatives at position 284 showed a red shift in the emission spectra. For mutants containing glycosylated tyrosines, the red shift was observed only when the carbohydrate moiety was fully deacetylated.

  DOI：

  10.1021/ja067466n