1-O-n-hexadecyl-2-hydroxy-sn-glycero-3-phosphoethanolamine | 52603-01-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 甘油磷脂
• 英文名称: 1-O-n-hexadecyl-2-hydroxy-sn-glycero-3-phosphoethanolamine
• 英文别名: 2-azaniumylethyl (2R)-3-(hexadecyloxy)-2-hydroxypropyl phosphate；2-azaniumylethyl [(2R)-3-hexadecoxy-2-hydroxypropyl] phosphate
• CAS: 52603-01-7
• 化学式: C₂₁H₄₆NO₆P
• 分子量: 439.573
• InChiKey: OKXWJISJKQKUTN-OAQYLSRUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  29
• 可旋转键数：
  23
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  111
• 氢给体数：
  3
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  鲛肝醇 在 吡啶 、 咪唑 、 4-二甲氨基吡啶 、 钯 、 三乙胺 、 三氯氧磷 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 1-O-n-hexadecyl-2-hydroxy-sn-glycero-3-phosphoethanolamine
  参考文献：
  名称：

  Synthesis and evaluation of immunostimulant plasmalogen lysophosphatidylethanolamine and analogues for natural killer T cells

  摘要：

  Plasmalogen lysophosphatidylethanolamine (pLPE) had been identified as a self antigen for natural killer T cells (NKT cells). It is very important in the development, maturation and activation of NKT cells in thymus. Besides, pLPE is a novel type of antigen for NKT cells. To evaluate the structure-activity relationship (SAR) of this new antigen, pLPE and its analogues referred to different aliphatic chains and linkages at the sn-1 position of the glycerol backbone were synthesized, and the biological activities of these analogues was characterized. It is discovered that the linkages between phosphate and lipid moiety are not important for the antigens' activities. The pLPE analogues 1, 3, 4, 7 and 9, which have additional double bonds on lipid parts, were identified as new NKT agonists. Moreover, the analogues 4, 7 and 9 were discovered as potent Th2 activators for NKT cells. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2014.04.012

文献信息

• Biochemical Characterization of Various Catalytic Complexes of the Brain Platelet-activating Factor Acetylhydrolase
  作者：Hiroshi Manya、Junken Aoki、Hiromi Kato、Junko Ishii、Shinji Hino、Hiroyuki Arai、Keizo Inoue

  DOI：10.1074/jbc.274.45.31827

  日期：1999.11

  Brain intracellular platelet-activating factor acetylhydrolase (PAF-AH) isoform I is a member of a family of complex enzymes composed of mutually homologous alpha(1) and alpha(2) subunits, both of which account for catalytic activity, and the beta subunit. We previously demonstrated that the expression of one catalytic subunit, alpha(1), is developmentally regulated, resulting in a switching of the catalytic complex from alpha(1)/alpha(2) to alpha(2)/alpha(2) during brain development (Manya, H., Aoki, J., Watanabe, M., Adachi, T., Asou, H., Inoue, Y., Arai, H., and Inoue, K. (1998) J. Biol. Chem. 273, 18567-18572). In this study, we explored the biochemical differences in three possible catalytic dimers, alpha(1)/alpha(1), alpha(1)/alpha(2), and alpha(2)/alpha(2). The alpha(2)/alpha(2) homodimer exhibited different substrate specificity from the alpha(1)/alpha(1) homodimer and the alpha(1)/alpha(2) heterodimer, both of which showed similar substrate specificity. The alpha(2)/alpha(2) homodimer hydrolyzed PAF and 1-O-alkyl-2-acetyl-sn-glycero-3-phosphorylethanolamine (AAGPE) most efficiently among 1-O-alkyl-2-acetyl-phospholipids. In contrast, both alpha(1)/alpha(1) and alpha(1)/alpha(2) hydrolyzed 1-O-alkyl-2-acetyl-sn-glycero-3-phosphoric acid more efficiently than PAF. AAGPE was the poorest substrate for these enzymes. The beta subunit bound to all three catalytic dimers but modulated the enzyme activity in a catalytic dimer composition-dependent manner. The beta subunit strongly accelerated the enzyme activity of the alpha(2)/alpha(2) homodimer but rather suppressed the activity of the alpha(1)/alpha(1) homodimer and had little effect on that of the alpha(1)/alpha(2) heterodimer. The (His(149) to Arg) mutant beta, which has been recently identified in isolated lissencephaly sequence patients, lost the ability to either associate with the catalytic complexes or modulate their enzyme activity. The enzyme activity of PAF-AH isoform I may be regulated in multiple ways by switching the composition of the catalytic subunit and by manipulating the beta subunit.
• Synthesis and evaluation of immunostimulant plasmalogen lysophosphatidylethanolamine and analogues for natural killer T cells
  作者：Guanghui Ni、Zhiyuan Li、Kangjiang Liang、Ting Wu、Gennaro De Libero、Chengfeng Xia

  DOI：10.1016/j.bmc.2014.04.012

  日期：2014.6

  Plasmalogen lysophosphatidylethanolamine (pLPE) had been identified as a self antigen for natural killer T cells (NKT cells). It is very important in the development, maturation and activation of NKT cells in thymus. Besides, pLPE is a novel type of antigen for NKT cells. To evaluate the structure-activity relationship (SAR) of this new antigen, pLPE and its analogues referred to different aliphatic chains and linkages at the sn-1 position of the glycerol backbone were synthesized, and the biological activities of these analogues was characterized. It is discovered that the linkages between phosphate and lipid moiety are not important for the antigens' activities. The pLPE analogues 1, 3, 4, 7 and 9, which have additional double bonds on lipid parts, were identified as new NKT agonists. Moreover, the analogues 4, 7 and 9 were discovered as potent Th2 activators for NKT cells. (C) 2014 Elsevier Ltd. All rights reserved.