在状半结构化氧亚酸盐上对利糖进行异构选择性非生物合成
Wendi Zhang1, Yao Wang2, Yanhang Ma2
1School of Chemical Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China.
Angewandte Chemie (International ed. in English)
|April 23, 2025
概括
像氧酸盐膜这样的奇拉尔矿物质可以催化酶体丰富的核糖的前生物合成. 这一发现提供了关于生命起源和基本生物分子对称性破坏的见解.
科学领域:
- 天体生物学 天体生物学
- 地质化学 地质化学
- 有机化学 有机化学
背景情况:
- 生命的起源需要前生物合成和对关键生物分子 (如核糖) 的酶体丰富.
- 在 prebiotic 条件下达到 enantiomerically 纯的 riboze 是一个重大的挑战.
研究的目的:
- 为了研究性矿物质在催化 riboze 的 enantioselective 合成中的潜力.
- 探索矿物表面在 prebiotic 对称性破坏中的作用.
主要方法:
- 合成使用热水条件和奇拉性酸 (MA) 的奇拉性半结构化酸膜 (CMHAPFs).
- 描述CMHAPF及其在合成从甘甲和甘甲里中的催化活性.
- 通过吸附研究和计算建模,分析糖反体过量 (ee).
主要成果:
- 在d-酸的存在下形成的CMHAPFs产生了d-ribose,其反体过量为22.5%.
- 计算分析显示,与l-ribose相比,d-ribose在右侧的酸表面表现出更稳定的吸附.
- 过渡状态能量障碍的差异,与与核糖的形状相似性相关,解释了观察到的反选择性.
结论:
- 基拉尔氧酸膜可以有效地催化ribose的enantioselective前生物合成.
- 具有固有的性矿物表面可能在 prebiotic 对称性破裂中发挥了关键作用,促进了生命的起源.
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