酸光化学使得益生菌能够获得糖和类前体
Dougal J Ritson1, John D Sutherland2
1MRC - Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge, UK. dritson@mrc-lmb.cam.ac.uk.
Nature chemistry
|July 13, 2023
概括
使用紫外线,硫和化的地球光化学反应可以形成必需的生物分子. 酸盐化学,可能来自石,使得糖和C5酒精的 prebiotic 合成为生命的起源.
科学领域:
- 天体生物学 天体生物学
- 益生菌化学 益生菌化学
- 生命的起源研究 生命的起源研究
背景情况:
- 地球上的光化学反应越来越多地被认为是它们在产生 (原生) 生物分子中的作用.
- 之前的研究表明,紫外线,无机硫和化可以驱动益生菌化学.
- 在这些条件下,可能来自石的减少物种可以形成酸盐和酸盐.
研究的目的:
- 为了研究酸盐的特性和益生菌形成途径.
- 探索硫酸在增强已知的前生物反应中的作用.
- 评估硫酸在合成与生命起源相关的关键生物分子中的实用性.
主要方法:
- 对硫酸的特性和形成进行实验研究.
- 对 thiophosphate 介导的预微生物反应的改进进行分析,例如对 thioamides,carbonyls 和 cyanohydrins 的光降解.
- 评估硫酸在光化学还原性氨基酸和C5醇合成中的作用.
主要成果:
- 在前生物条件下,从减少的物种中确认了酸盐的形成.
- 酸盐显著改善了一些报告的前生物反应.
- 从化中合成了tetroses和pentoses,采用了经过修改的Kiliani-Fischer工艺.
- 酸盐使光化学还原性氨基和C5酒精 (二甲基醇,异醇) 的益生菌合成成为可能.
结论:
- 硫酸是前生物化学中的关键分子,促进了必需生物分子的合成.
- 这些发现支持陆地光化学路径,涉及硫和,对于生命的起源至关重要.
- 酸盐化学提供了一条可信的途径,以获得对烯和类生物合成至关重要的C5部分.
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