Artículo
New biocatalysts for one pot multistep enzymatic synthesis of pyrimidine nucleoside diphosphates from readily available reagents
Fecha de publicación:
04/2015
Editorial:
Elsevier Science
Revista:
Journal of Molecular Catalysis B: Enzymatic
ISSN:
1381-1177
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Since the preparation of nucleoside 5′-diphosphates by classical methodologies is complex, multistep enzymatic systems were explored to synthesize pyrimidine nucleoside 5′-diphosphates starting from readily available reagents. Different strategies were combined to prepare uridine- and thymidine 5′-diphosphates as ribo- and deoxyribonucleoside models, respectively. For uridine 5′-diphosphate synthesis, conversions between 38 and 66% were achieved, using a simple methodology that involves commercial yeast extract as biocatalyst and biocatalytically in situ prepared uridine 5′-monophosphate. Corynebacterium ammoniagenes ATCC 19350 was used for the first time as biocatalyst to synthesize uridine 5′-monophosphate from uracil and orotic acid while Raoultella planticola was the selected biocatalyst for uridine 5′-monophosphate synthesis from uridine. The overall performances of all the tested approaches were similar but the use of uracil leads to a more suitable and cheaper process. Alternatively, for thymidine 5′-diphosphate synthesis two consecutive one pot multistep enzyme systems were assayed. In the first biotransformation, 2′-deoxyribose 5-phosphate was formed from glucose by Erwinia carotovora whole cells followed by the action of phosphopentomutase and thymidine phosphorylase affording thymidine in 85% conversion relative to 2′-deoxyribose 5-phosphate. Finally, in the second one pot reaction, the nucleoside was converted to thymidine 5′-diphosphate by the combined action of Escherichia coli BL21 pET22b-phoRp and Saccharomyces cerevisiae.
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Articulos(INGEBI)
Articulos de INST.DE INVEST.EN ING.GENETICA Y BIOL.MOLECULAR "DR. HECTOR N TORRES"
Articulos de INST.DE INVEST.EN ING.GENETICA Y BIOL.MOLECULAR "DR. HECTOR N TORRES"
Articulos(SEDE CENTRAL)
Articulos de SEDE CENTRAL
Articulos de SEDE CENTRAL
Citación
Valino, Ana Laura; Iribarren, Adolfo Marcelo; Lewkowicz, Elizabeth Sandra; New biocatalysts for one pot multistep enzymatic synthesis of pyrimidine nucleoside diphosphates from readily available reagents; Elsevier Science; Journal of Molecular Catalysis B: Enzymatic; 114; 4-2015; 58-64
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