ArticleThe FEBS journal2025
Protometabolic functions of pyridoxal: A link between early amino acid synthesis and enzyme evolution.
Article in The FEBS journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In the framework of studies on protometabolism, Schlikker et al. characterized the conversion of pyridoxal to pyridoxamine under conditions mimicking the ones likely existing at the origin of metabolism. These conditions triggered nitrogen incorporation into amino acids in solution before the origins of enzymes. The suggested role for pyridoxal highlights its pivotal function in the transition from inorganic ammonia-dependent amino acid synthesis to organic reactions in aqueous solution and supports the "metabolism first" theory for biological evolution. Insights from the early evolution of natural enzymes can inspire the development of novel biocatalysts for biotechnological applications based on the catalytic versatility of pyridoxal.
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