Fuc(a1-2)Gal(b1-3)b-Gal1Me | 613243-53-1

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: Fuc(a1-2)Gal(b1-3)b-Gal1Me
• 英文别名: (2S,3S,4R,5S,6S)-2-[(2S,3R,4S,5R,6R)-2-[(2R,3S,4S,5R,6R)-3,5-dihydroxy-2-(hydroxymethyl)-6-methoxyoxan-4-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-6-methyloxane-3,4,5-triol
• CAS: 613243-53-1
• 化学式: C₁₉H₃₄O₁₅
• 分子量: 502.47
• InChiKey: PTHOXONVRPSCKT-LFIUEWPTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -4.7
• 重原子数：
  34
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  237
• 氢给体数：
  9
• 氢受体数：
  15

反应信息

• 作为反应物：
  描述：

  乙酸酐 、 Fuc(a1-2)Gal(b1-3)b-Gal1Me 在 吡啶 、 4-二甲氨基吡啶 作用下， 反应 1.0h， 以6.22 mg的产率得到methyl 2,4,6-tri-O-acetyl-3-O-[3,4,6-tri-O-acetyl-2-O-(2,3,4-tri-O-acetyl-α-L-fucopyranosyl)-β-D-galactopyranosyl]-β-D-galactopyranoside
  参考文献：
  名称：

  螺旋果糖糖基转移酶的串联开发：含H抗原的寡糖的简便合成。

  摘要：

  Helicidae家族的蜗牛在其蛋白腺中产生高度分支的半乳聚糖，该半乳聚糖几乎仅由D-和L-半乳糖组成。D-Gal残基糖基地通过beta（1-> 6）-或beta（1-> 3）连接，而L-Gal部分则连接alpha（1-> 2）。到目前为止，在这些腺体的膜制剂中已鉴定出两种β（1-> 6）-D-半乳糖基转移酶和一种α（1-> 2）-L-半乳糖基转移酶。通过连续添加NDP活化的（NDP = nucleoside-5'-diphosphate）D-Gal或L-Fuc部分将它们用于合成各种寡糖，从二糖D-Gal-beta（1 -> 3）-D-Gal-β（1-> OMe。从六糖D-Gal-β（1-> 3）-D-Gal]4-β（1→4）-D-Glc作为受体底物。这种串联开发过程具有将D-Gal和L-Fuc残基轻松引入各种寡糖的巨大潜力，这些寡糖可用于配体/受体研究。

  DOI：

  10.1002/chem.200700440
• 作为产物：
  描述：

  β-D-Galp-(1->3)-β-D-Galp-O-CH3 、 5`-二磷酸鸟嘌呤核苷-岩藻糖二钠盐 在 Helix pomatia albumen gland sediment sodium azide 、 calf intestine alkaline phosphatase EC 3.1.3.1 、 manganese(ll) chloride 作用下， 以 various solvent(s) 为溶剂， 反应 18.0h， 以93%的产率得到Fuc(a1-2)Gal(b1-3)b-Gal1Me
  参考文献：
  名称：

  Enzymatic α(1→2)-l-fucosylation: investigation of the specificity of the α(1→2)-l-galactosyltransferase from Helix pomatia

  摘要：

  The alpha(1-->2)-L-galactosyltransferase from Helix pomatia transfers an L-fucosyl residue from GDP-L-Fucose to a terminal, non-reducin D-galactopyranosyl moiety of an oligosaccharide. The extent of the enzyme's specificity towards the stereochemistry at the D-galactopyranosyl anomeric centre, the site of interglycosidic linkage and the nature of the subterminal oliaosaccharide residue has been investigated using HPAEC-PAD and MALDI-TOF technology. This alpha(1-->2)-L-galactosyltransferase is specific for D-galactopyranosyl beta-linkages, independent of the site of the interglycosidic linkage and aglycone configuration and with limited specificity for the nature of the subterminal sugar residue. (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(03)00521-4

文献信息

• The specificity of an α-(1 → 2)-l-galactosyltransferase from albumen glands of the snail Helix pomatia
  作者：Holger Lüttge、Thorsten Heidelberg、Katja Stangier、Joachim Thiem、Hagen Bretting

  DOI：10.1016/s0008-6215(96)00277-7

  日期：1997.1

  The specificity of an L-galactosyltransferase (L-Gal-T) from albumen glands of the snail Helix pomatia has been studied. This enzyme transfers L-Gal from GDP-L-Gal to various disaccharides with beta-linked D-Gal in terminal non-reducing position, forming an alpha-(1 --> 2) linkage. The subterminal residue and the type of interglycosidic linkage proved to be of minor importance. However, the branched trisaccharide beta-D-Gal-(1 --> 3)-[beta-D-Gal-(1 --> 6)]-beta-D-Gal-(1 --> O)Me is a very poor acceptor. The specificity of the L-Gal-T correlates well with the equimolar occurrence of L-Gal and the structural element --> 2)-Gal-(1 --> found in the storage polysaccharide of this snail. Since L-Fuc is also transferred from its GDP-activated form, the membrane preparations of the albumen glands can be used to synthesize fucosylated oligosaccharides. (C) 1997 Elsevier Science Ltd.
• Tandem Exploitation ofHelix pomatia Glycosyltransferases: Facile Syntheses of H-Antigen-Bearing Oligosaccharides
  作者：Hagen Bretting、Friedrich Buck、Günter Jacobs、Sebastian Meinke、Angela M. Scheppokat、Joachim Thiem

  DOI：10.1002/chem.200700440

  日期：2007.8.27

  in a membrane preparation of these glands. These were used to synthesise various oligosaccharides by successive addition of the NDP-activated (NDP=nucleoside-5'-diphosphate) D-Gal or L-Fuc moieties, up to a heptasaccharide by starting from the disaccharide D-Gal-beta(1-->3)-D-Gal-beta(1-->OMe. Even larger oligosaccharides up to a tridecasaccharide were obtained by starting with the hexasaccharide D-

  Helicidae家族的蜗牛在其蛋白腺中产生高度分支的半乳聚糖，该半乳聚糖几乎仅由D-和L-半乳糖组成。D-Gal残基糖基地通过beta（1-> 6）-或beta（1-> 3）连接，而L-Gal部分则连接alpha（1-> 2）。到目前为止，在这些腺体的膜制剂中已鉴定出两种β（1-> 6）-D-半乳糖基转移酶和一种α（1-> 2）-L-半乳糖基转移酶。通过连续添加NDP活化的（NDP = nucleoside-5'-diphosphate）D-Gal或L-Fuc部分将它们用于合成各种寡糖，从二糖D-Gal-beta（1 -> 3）-D-Gal-β（1-> OMe。从六糖D-Gal-β（1-> 3）-D-Gal]4-β（1→4）-D-Glc作为受体底物。这种串联开发过程具有将D-Gal和L-Fuc残基轻松引入各种寡糖的巨大潜力，这些寡糖可用于配体/受体研究。
• Enzymatic α(1→2)-l-fucosylation: investigation of the specificity of the α(1→2)-l-galactosyltransferase from Helix pomatia
  作者：Angela Michelle Scheppokat、Minoru Morita、Joachim Thiem、Hagen Bretting

  DOI：10.1016/s0957-4166(03)00521-4

  日期：2003.8

  The alpha(1-->2)-L-galactosyltransferase from Helix pomatia transfers an L-fucosyl residue from GDP-L-Fucose to a terminal, non-reducin D-galactopyranosyl moiety of an oligosaccharide. The extent of the enzyme's specificity towards the stereochemistry at the D-galactopyranosyl anomeric centre, the site of interglycosidic linkage and the nature of the subterminal oliaosaccharide residue has been investigated using HPAEC-PAD and MALDI-TOF technology. This alpha(1-->2)-L-galactosyltransferase is specific for D-galactopyranosyl beta-linkages, independent of the site of the interglycosidic linkage and aglycone configuration and with limited specificity for the nature of the subterminal sugar residue. (C) 2003 Elsevier Ltd. All rights reserved.