Unexpected tautomeric equilibria of the carbanion-enamine intermediate in pyruvate oxidase highlight unrecognized chemical versatility of thiamin

Thiamin diphosphate, the vitamin B1 coenzyme, plays critical roles in fundamental metabolic pathways that require acyl carbanion equivalents. Studies on chemical models and enzymes had suggested that these carbanions are resonance-stabilized as enamines. A crystal structure of this intermediate in p...

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Detalhes bibliográficos
Main Authors: Meyer, Danilo, Neumann, Piotr, Koers, Eline, Sjuts, Hanno, Lüdtke, Stefan, Sheldrick, George M., Ficner, Ralf, Tittmann, Kai
Formato: Artigo
Idioma:Inglês
Publicado em: National Academy of Sciences 2012
Assuntos:
Biological Sciences
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC3390845/
https://ncbi.nlm.nih.gov/pubmed/22730460
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.1201280109
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