Prebiotic Synthesis of Aspartate Using Life's Metabolism as a Guide.
Prebiotic Synthesis of Aspartate Using Life's Metabolism as a Guide.
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使用生命代谢作为指导的天冬氨酸的益生元合成。
DOI:
10.3390/life13051177
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发表时间:
2023-05-12
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影响因子:
--
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中科院分区:
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A protometabolic approach to the origins of life assumes that the conserved biochemistry of metabolism has direct continuity with prebiotic chemistry. One of the most important amino acids in modern biology is aspartic acid, serving as a nodal metabolite for the synthesis of many other essential biomolecules. Aspartate’s prebiotic synthesis is complicated by the instability of its precursor, oxaloacetate. In this paper, we show that the use of the biologically relevant cofactor pyridoxamine, supported by metal ion catalysis, is sufficiently fast to offset oxaloacetate’s degradation. Cu2+-catalysed transamination of oxaloacetate by pyridoxamine achieves around a 5% yield within 1 h, and can operate across a broad range of pH, temperature, and pressure. In addition, the synthesis of the downstream product β-alanine may also take place in the same reaction system at very low yields, directly mimicking an archaeal synthesis route. Amino group transfer supported by pyridoxal is shown to take place from aspartate to alanine, but the reverse reaction (alanine to aspartate) shows a poor yield. Overall, our results show that the nodal metabolite aspartate and related amino acids can indeed be synthesised via protometabolic pathways that foreshadow modern metabolism in the presence of the simple cofactor pyridoxamine and metal ions.
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DOI:
10.1039/jr9610004235
发表时间:
1961-01-01
期刊:
JOURNAL OF THE CHEMICAL SOCIETY
影响因子:
--
作者:
BANKS, BE;DIAMANTIS, AA;VERNON, CA
通讯作者:
VERNON, CA
影响因子:
4.5
作者:
Belmonte, Luca;Mansy, Sheref S.
通讯作者:
Mansy, Sheref S.
影响因子:
4.2
作者:
Camprubi, E.;Harrison, S. A.;Lane, N.
通讯作者:
Lane, N.
影响因子:
3.9
作者:
CABELLO, J;PLAZA, M;PRAJOUX, V
通讯作者:
PRAJOUX, V
影响因子:
16.6
作者:
Beyazay, Tugce;Belthle, Kendra S.;Fares, Christophe;Preiner, Martina;Moran, Joseph;Martin, William F.;Tueysuez, Harun
通讯作者:
Tueysuez, Harun