调查化的蛋白质反应性和选择性
D Alexander Shannon1, Ranjan Banerjee, Elizabeth R Webster
1Department of Chemistry, Merkert Chemistry Center , Boston College, Chestnut Hill, Massachusetts 02467, United States.
Journal of the American Chemical Society
|February 20, 2014
概括
烯化物是用于化学蛋白质组学的可调节蛋白质修饰剂. 研究人员确定了特定的烯化物,可以选择性地标记半氨酸和氨酸残留物,从而推进共价抑制剂的开发和蛋白质分析.
科学领域:
- 化学生物学 化学生物学
- 蛋白质组学是指蛋白质组学.
- 有机化学 有机化学
背景情况:
- 蛋白反应电友是化学生物学中必不可少的工具.
- 应用包括基于活动的蛋白质分析,选择性修饰和共价药物设计.
研究的目的:
- 通过核友芳香替代 (S(N) Ar) 探索化的蛋白质反应性.
- 为了证明环替代剂如何调整电友反应.
- 为了确定特定的烯化物用于共价蛋白修饰,并评估它们的氨基酸选择性.
主要方法:
- 烯化物电友的合成和表征.
- 在低微分子度下评估蛋白质标记效率.
- 全蛋白质组分析以确定标签的位点选择性.
主要成果:
- 化的活性可通过不同的环替代剂调整.
- 化和化和二三酶作为共价蛋白质修饰剂.
- p-Chloronitrobenzene可以选择性地标记氨酸残留物.
- 二三酸盐最好与氨酸残留物发生反应.
结论:
- 烯化物表现出不同的反应性和氨基酸选择性.
- 这些发现使得化在化学蛋白质组学中的应用成为可能.
- 该研究为基于活性的蛋白质分析和共价抑制剂开发提供了新的试剂.
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