一个前生物通道到尼古丁胺胺氨酸二核酸
Maximilian Bechtel1, Nathalie J Kurrle1, Oliver Trapp1,2
1Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377, Munich, Germany.
Chemistry (Weinheim an der Bergstrasse, Germany)
|June 17, 2024
概括
科学家们从简单的有机分子中非酶性地制造出尼古丁胺胺氨基二核酸 (NAD+),这对生命至关重要. 这种前生物途径使用光催化激活,这表明NAD+可能在早期地球上形成.
科学领域:
- 天体生物学 天体生物学
- 生命的起源研究 生命的起源研究
- 生物化学 生物化学
背景情况:
- 酶对于细胞代谢至关重要,并且通常需要尼古丁胺氨酸二核酸 (NAD+) 等共酶来发挥作用.
- 在前生物条件下合成重要的辅酶,如NAD +,仍然是理解生命起源的重大挑战.
- 共同酶被认为存在于最后一个宇宙祖先 (LUCA) 或更早,突出了它们原始形成的重要性.
研究的目的:
- 研究一种可信的益生菌途径,用于尼古丁胺胺氨基二核酸 (NAD+) 的非酶合成.
- 在早期地球条件下,从简单的有机原料分子中演示NAD+的形成.
- 探索光催化激活在必需生物分子的非生物合成中的作用.
主要方法:
- 使用氨,乙,prop-2-ynal和糖前体在现场合成尼古丁胺.
- 采用区域选择性酸化和水稳定,光激活的腺单酸衍生物.
- 在带有光催化激活的水性条件下进行合成,模仿早期地球环境.
主要成果:
- 在益生菌条件下,从简单的有机前体中成功合成尼古丁胺胺 рибоoside.
- 使用新酸化方法实现了以地形和辐射控制的NAD+形成.
- 在水性环境中证明了连续,非酶性NAD+生产的可行性.
结论:
- NAD+可以从简单的有机分子通过光催化激活在 prebiotically可信的条件下非生物形成.
- 这一途径为地球早期的重要辅酶的起源提供了潜在的机制.
- 这些发现支持了非酶体生化途径有助于生命出现的可能性.
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