3-azidopropyl O-(5-methoxyacetamido-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonic acid)-(2->3)-O-β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-azidopropyl O-(5-methoxyacetamido-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonic acid)-(2->3)-O-β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside
• 英文别名: (2S,4S,5R,6R)-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-6-(3-azidopropoxy)-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-5-[(2-methoxyacetyl)amino]-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid
• 化学式: C₂₇H₄₆N₄O₂₀
• 分子量: 746.677
• InChiKey: FOSFIVKPDZGPCP-OZCSSZPBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -5.5
• 重原子数：
  51
• 可旋转键数：
  18
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  348
• 氢给体数：
  12
• 氢受体数：
  22

反应信息

• 作为产物：
  描述：

  1',2',3',6',2,3,4,6-octa-O-acetyl-β-D-lactose 在 E_.coli K₁₂ sialic acid aldolase 、 N_.meningitidis CMP-Sia synthetase sodium azide 、 4 A molecular sieve 、 tPm₀₁₈₈Ph 、 三氟化硼乙醚 、 sodium methylate 、 四丁基碘化铵 、 胞苷-5’-三磷酸 、 magnesium chloride 作用下， 以 甲醇 、 二氯甲烷 、 various solvents 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 生成 3-azidopropyl O-(5-methoxyacetamido-3,5-dideoxy-D-glycero-α-D-galacto-2-nonulopyranosylonic acid)-(2->3)-O-β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside
  参考文献：
  名称：

  A Multifunctional Pasteurella multocida Sialyltransferase:  A Powerful Tool for the Synthesis of Sialoside Libraries

  摘要：

  A multifunctional sialyltransferase has been cloned from Pasteurella multocida strain P-1059 and expressed in E. coli as a truncated C-terminal His6-tagged recombinant protein (tPm0188Ph). Biochemical studies indicate that the obtained protein is (1) an alpha2,3-sialyltransferase (main function), (2) an alpha2,6-sialyltransferase, (3) an alpha2,3-sialidase, and (4) an alpha2,3-trans-sialidase. The recombinant tPm0188Ph is a powerful tool in the synthesis of structurally diverse sialoside libraries due to its relaxed substrate specificity, high solubility, high expression level, and multifunctionality.

  DOI：

  10.1021/ja0561690

文献信息

• A Multifunctional <i>Pasteurella multocida</i> Sialyltransferase:  A Powerful Tool for the Synthesis of Sialoside Libraries
  作者：Hai Yu、Harshal Chokhawala、Rebekah Karpel、Hui Yu、Bingyuan Wu、Jianbo Zhang、Yingxin Zhang、Qiang Jia、Xi Chen

  DOI：10.1021/ja0561690

  日期：2005.12.1

  A multifunctional sialyltransferase has been cloned from Pasteurella multocida strain P-1059 and expressed in E. coli as a truncated C-terminal His6-tagged recombinant protein (tPm0188Ph). Biochemical studies indicate that the obtained protein is (1) an alpha2,3-sialyltransferase (main function), (2) an alpha2,6-sialyltransferase, (3) an alpha2,3-sialidase, and (4) an alpha2,3-trans-sialidase. The recombinant tPm0188Ph is a powerful tool in the synthesis of structurally diverse sialoside libraries due to its relaxed substrate specificity, high solubility, high expression level, and multifunctionality.