透過您的圖書館登入
IP:18.191.135.224
  • 學位論文

合成含有仿磷酸酪胺酸的三胜肽和四胜肽作為蛋白質SH2 結構區的抑制劑

Synthesis of Phosphotyrosine Mimetic-Containing Tri-and Tetrapeptides as SH2 Domain Inhibitors

指導教授 : 羅禮強
若您是本文的作者,可授權文章由華藝線上圖書館中協助推廣。

摘要


蛋白質SH2結構區在蛋白質-蛋白質相互作用上扮演關鍵的角色,而此類作用主要是透過SH2結構區與特定位置的磷酸化酪胺酸來進行。因此我們設計並合成出仿磷酸酪胺酸的單體分子,利用Fmoc 方法進行組合式固相胜肽合成,用以建構包含此仿磷酸酪胺酸單體的三胜肽和四胜肽分子庫,作為篩選蛋白質SH2結構區的抑制劑。其中,三胜肽是以Grb2 SH2結構區所對應的YXN序列,而四胜肽則是以STAT SH2結構區所對應的YXXQ序列來設計。此外,這些胜肽分子庫N 端上涵蓋有三種不同基團,以增加其分子庫的規模。

並列摘要


The Src-homology 2 (SH2) domains play an important role in protein-protein interaction, and are specific for the phosphotyrosine-containing peptides. Herein, we design and synthesis the phosphotyrosyl mimetic as a building block to set up the compound library using Fmoc solid phase peptide synthesis. And the library is composed of the phosphotyrosyl mimetic-containing tri- and tetrapeptides as SH2 domain inhibitors. In this library, the Grb2-SH2 domain preferably binds phosphotyrosyl peptides with the consensus sequence YXN, and the STAT-SH2 domain recognizes YXXQ tetrapeptides sequence. Additionally, in order to increase the scope of the library, we perform three different N-terminal modification in this peptides.

參考文獻


39.Huang, Y. Y.; Kuo, C. C.; Chu, C. Y.; Huang, Y. H.; Hu, Y. L.; Lin, J. J.; Lo, L. C. Tetrahedron. 2010, 66, 4521-4529.
45.Bannwarth, W.; Trzeciak. A.; Sekine, M.; Iimura, S.; Nakanishi, T. 1991, 32, 395-398.
.; Pinard, P.V.; Hamel, E.; Johnson, J.; Cushman, M. J. Med. Chem. 2001, 44, 441–452.
54.Yao, Z. J.; King, C. R.; Cao, T.; Kelley, J.; Milne, G. W.; Voigt, J. H.; Burke, T. R. Jr. J. Med. Chem. 1999, 42, 25–35.
19.Ren, Z.; Cabell, L. A.; Schaefer, T. S.; Murray, J. S. Bioorg Med Chem Lett. 2003, 13, 633-636.

延伸閱讀