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Solid-phase Synthesis of [4.4] Spirocyclic Oximes
Published on: February 6, 2019
有机S-adenosyl-L-methionine模仿剂:合成,稳定性和基质特性
Alexander Yu Rudenko1,2, Sofia S Mariasina1,2,3,4, Anastasiia K Bolikhova1,3
1Belozersky Institute of Physico-Chemical Biology, M. V. Lomonosov Moscow State University, Moscow, Russia.
研究人员开发了一种稳定的S-Adenosyl-l-methionine (SAM) 模拟物,SAM-P,用于研究甲基化. 这种新化合物保留了活性,并为甲基转移酶研究提供了更稳定的工具.
科学领域:
- 生物化学 生物化学
- 化学生物学 化学生物学
背景情况:
- S-Adenosyl-l-methionine (SAM) 对于细胞内甲基化过程至关重要.
- 现有的SAM同类与记者组经常遭受化学不稳定性,限制了它们的实用性.
- 甲基转移酶在细胞功能和疾病中起着至关重要的作用,包括威廉姆斯-比伦综合征.
研究的目的:
- 为研究甲基转移酶活性开发SAM的化学稳定模拟物.
- 调查新型SAM模拟物SAM-P的功能活性和稳定性.
- 探索SAM-P及其衍生物的酶和化学合成路径.
主要方法:
- 种族性SAM-P的化学合成.
- 使用氨酸腺转移酶2A和化物甲基转移酶的 (R,S) -SAM-P和类似物的酶合成.
- 评估SAM-P在酶反应中的稳定性和功能活性 (甲基转移酶和WBSCR27).
- 调查SAH-P与甲基氨酸核糖酶的行为.
主要成果:
- 开发了SAM-P,一种新型的SAM模拟物,具有H-phosphinic组,与天然SAM相比,具有更好的化学稳定性.
- 在由甲基转移酶和甲基转移酶WBSCR27.27催化反应中,SAM-P显示保留了功能活性.
- 建立了合成SAM-P及其类型的化学和酶方法,包括Met-PH和SAH-P.
- 证实SAH-P经过糖化键裂变,类似于天然的SAH.
结论:
- 与现有的SAM工具相比,SAM-P及其类型代表了稳定性和功能上的重大进步.
- 这些新型化合物对研究甲基转移酶机制和基质标记具有前景.
- 这项开发有助于进一步研究依赖甲基化的生物过程和相关疾病.
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