L-Methionylglycyl-L-leucyl-L-prolyl-(S-farnesyl)-L-cysteine methyl ester | 170892-94-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: L-Methionylglycyl-L-leucyl-L-prolyl-(S-farnesyl)-L-cysteine methyl ester
• 英文别名: L-methionylglycyl-L-leucyl-L-prolyl-S-farnesyl-L-cysteine methyl ester；HMetGlyLeuProCys(Far)OMe；H-Met-Gly-Leu-Pro-Cys((E,E)-farnesyl)-OMe；methyl (2R)-2-[[(2S)-1-[(2S)-2-[[2-[[(2S)-2-amino-4-methylsulfanylbutanoyl]amino]acetyl]amino]-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]-3-[(2E,6E)-3,7,11-trimethyldodeca-2,6,10-trienyl]sulfanylpropanoate
• CAS: 170892-94-1
• 化学式: C₃₇H₆₃N₅O₆S₂
• 分子量: 738.069
• InChiKey: QZQFUWVIZNTCLP-JVJHRHQHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6
• 重原子数：
  50
• 可旋转键数：
  24
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.7
• 拓扑面积：
  211
• 氢给体数：
  4
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  L-Methionylglycyl-L-leucyl-L-prolyl-(S-farnesyl)-L-cysteine methyl ester 在 哌啶 、 1-羟基苯并三唑 、 达卡巴嗪 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 NBD-Aca-Gly-Cys(S-tBu)-Met-Gly-Leu-Pro-Cys(Far)-OMe
  参考文献：
  名称：

  Chemoenzymatic Synthesis of N-Ras Lipopeptides

  摘要：

  For the study of biological phenomena influenced by the plasma-membrane-bound Ras proteins and other lipidated proteins, characteristic peptides which embody the correct lipid modifications of their parent proteins (palmitoyl thioesters and farnesyl thioethers), as well as analogues thereof, may serve as suitable tools. For the construction of such acid- and base-labile peptide conjugates, the enzyme-labile p-acetoxybenzyloxycarbonyl (AcOZ) urethane blocking group was developed. The acetate moiety within the AcOZ group is easily saponified by treatment with acetyl esterase or lipase. After cleavage of the acetate group the resulting quinone methide spontaneously fragments, resulting in the liberation of the desired peptide or peptide conjugates. This enzymatic protecting group technique formed the key step in the synthesis of the characteristic S-palmitoylated and S-farnesylated C-terminus of the human N-Ras protein. Deprotections are so mild that no undesired side reactions of the lipid conjugates are observed (i.e., no hydrolysis or beta-elimination of the thioester and no acid-mediated attack on the double bonds of the farnesyl group). The combination of enzymatic protecting group techniques with classical chemical methods allowed access to various fluorescent-labeled and differently lipid-modified Rns lipopeptides. Their application in biological experiments enabeled the study of the structural requirements for the acylation of Ras sequence motifs in vivo and gave insight into the subcellular site at which these modifications occur. The results indicate that the plasma membrane is a major site of cellular S-acylation. This supports a mechanism for the selective subcellular localization of lipidated proteins, including the Rns proteins themselves, by kinetic targeting to the plasma membrane.

  DOI：

  10.1021/ja9805627
• 作为产物：
  描述：

  L-蛋氨酸 在 吗啉 、 四(三苯基膦)钯 、 lipase from Mucor miehei 、 1-羟基苯并三唑 、 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 、 三乙胺 、 N,N'-二环己基碳二亚胺 、 potassium iodide 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 50.0h， 生成 L-Methionylglycyl-L-leucyl-L-prolyl-(S-farnesyl)-L-cysteine methyl ester
  参考文献：
  名称：

  Chemoenzymatic Synthesis of N-Ras Lipopeptides

  摘要：

  For the study of biological phenomena influenced by the plasma-membrane-bound Ras proteins and other lipidated proteins, characteristic peptides which embody the correct lipid modifications of their parent proteins (palmitoyl thioesters and farnesyl thioethers), as well as analogues thereof, may serve as suitable tools. For the construction of such acid- and base-labile peptide conjugates, the enzyme-labile p-acetoxybenzyloxycarbonyl (AcOZ) urethane blocking group was developed. The acetate moiety within the AcOZ group is easily saponified by treatment with acetyl esterase or lipase. After cleavage of the acetate group the resulting quinone methide spontaneously fragments, resulting in the liberation of the desired peptide or peptide conjugates. This enzymatic protecting group technique formed the key step in the synthesis of the characteristic S-palmitoylated and S-farnesylated C-terminus of the human N-Ras protein. Deprotections are so mild that no undesired side reactions of the lipid conjugates are observed (i.e., no hydrolysis or beta-elimination of the thioester and no acid-mediated attack on the double bonds of the farnesyl group). The combination of enzymatic protecting group techniques with classical chemical methods allowed access to various fluorescent-labeled and differently lipid-modified Rns lipopeptides. Their application in biological experiments enabeled the study of the structural requirements for the acylation of Ras sequence motifs in vivo and gave insight into the subcellular site at which these modifications occur. The results indicate that the plasma membrane is a major site of cellular S-acylation. This supports a mechanism for the selective subcellular localization of lipidated proteins, including the Rns proteins themselves, by kinetic targeting to the plasma membrane.

  DOI：

  10.1021/ja9805627

文献信息

• Synthesis of Functional <i>Ras</i> Lipoproteins and Fluorescent Derivatives
  作者：Karsten Kuhn、David J. Owen、Benjamin Bader、Alfred Wittinghofer、Jürgen Kuhlmann、Herbert Waldmann

  DOI：10.1021/ja002723o

  日期：2001.2.1

  protein. Furthermore, a preliminary study on the biological activity of the natural Ras protein derivative (containing the normal farnesyl and palmitoyl lipid residues) has shown full biological activity. This result highlights the usefulness of these compounds as invaluable tools for the study of Ras signal transduction processes and the plasma membrane localization of the Ras proteins.

  对于生物信号转导的研究，获得正确脂化的蛋白质至关重要。此外，获得包含正确蛋白质结构但可能额外携带不同脂质基团或标记（即荧光标签）的生物缀合物，通过这些标记可以在生物系统中追踪蛋白质，可以提供宝贵的试剂。我们在此报告一系列修饰 Ras 蛋白合成技术的发展。这些经过修饰的 Ras 蛋白携带许多不同的天然和非天然脂质残基，并且该过程还扩展为还提供了获得许多荧光标记衍生物的途径。马来酰亚胺基团提供了以特定和有效方式将化学合成的脂肽分子连接到截短形式的 H-Ras 蛋白的关键。此外，对天然 Ras 蛋白衍生物（含有正常法呢基和棕榈酰脂质残基）的生物活性的初步研究已显示出完整的生物活性。这一结果突出了这些化合物作为研究 Ras 信号转导过程和 Ras 蛋白的质膜定位的宝贵工具的有用性。
• Synthesis of characteristic lipopeptides of the human N-Ras protein and their evaluation as possible inhibitors of protein farnesyl transferase
  作者：Paul Stöber、Michael Schelhaas、Edgar Nägele、Patrizia Hagenbuch、János Rétey、Herbert Waldmann

  DOI：10.1016/s0968-0896(96)00213-1

  日期：1997.1

  N-Ras protein, was prepared. If acid labile blocking functions like the Boc group were used, upon deprotection an undesired addition of the acid to the double bonds of the farnesyl residue occurred. Therefore, acid labile blocking groups should not be employed in the synthesis of farnesylated lipopeptides. The lipopeptide methyl esters which carry only a farnesyl group do not inhibit protein farnesyl

  带有法呢基硫醚或棕榈酸硫酯和法呢基硫醚的脂肽是通过使用钯（0）敏感的Aloc氨基甲酸酯的碱基不稳定的Fmoc封闭基团通过肽链的N端延伸从S-法呢基半胱氨酸甲酯制备的。通过该技术，制备了代表人N-Ras蛋白的完全官能化的，即棕榈酰化的和法尼基化的C末端的脂六肽。如果使用诸如Boc基团之类的对酸不稳定的阻断功能，则在脱保护时，会发生不希望的酸加到法呢基残基的双键上。因此，酸不稳定的保护基团不应用于合成法呢基脂肽。仅带有法呢基的脂肽甲酯不会抑制蛋白法呢基转移酶，
• Schelhaas, Michael; Naegele, Edgar; Kuder, Norman, Chemistry - A European Journal, 1999, vol. 5, # 4, p. 1239 - 1252
  作者：Schelhaas, Michael、Naegele, Edgar、Kuder, Norman、Bader, Benjamin、Kuhlmann, Juergen、Wittinghofer, Alfred、Waldmann, Herbert

  DOI：——

  日期：——
• Waldmann, Herbert; Naegele, Edgar, Angewandte Chemie, 1995, vol. 107, # 20, p. 2425 - 2428
  作者：Waldmann, Herbert、Naegele, Edgar

  DOI：——

  日期：——
• Chemoenzymatic Synthesis of Fluorescent N-Ras Lipopeptides and Their Use in Membrane Localization Studies in Vivo
  作者：Herbert Waldmann、Michael Schelhaas、Edgar Nägele、Jürgen Kuhlmann、Alfred Wittinghofer、Hans Schroeder、John R. Silvius

  DOI：10.1002/anie.199722381

  日期：1997.11.3