Whole cell biocatalysts for the preparation of nucleosides and their derivatives.

Abstract:

:Nucleosides constitute an extensive group of natural and chemically modified compounds that display a wide range of structures and activities. Different biocatalysts have been developed for their preparation, but the choice of commercially available enzymes is limited. Therefore, the search of new biocatalysts is particularly attractive. In this sense, microorganisms are a vast source of enzymatic diversity that can be directly used as a whole cell biocatalysts providing a potential cheaper and suitable route for industrial applications. METHODS:This work makes particular emphasis on the following methods: the biocatalyzed whole cell synthesis of nucleosides mediated by phosphorylases, key biocatalyzed steps involved in other chemoenzymatic routes to prepare nucleoside analogues and the transformation of nucleosides in derivatives with particular properties. RESULTS:The literature covered in this work confirms that biocatalytic procedures that make use of whole cell systems can be successfully applied to obtain a wide variety of nucleoside analogues and their derivatives, providing alternative and complementary routes to traditional chemistry. The direct use of microbial whole cells as biocatalysts affords competitive results since it avoids the cumbersome procedures involved in enzyme isolation and facilitates multienzymatic processes. These biocatalysts also maintain the enzymes in their natural environment, protecting their activities from reaction conditions. CONCLUSION:Although the information presented herein shows that these methodologies have reached a high degree of development, it is expected that future contributions of protein engineering and nucleoside metabolism knowledge, among other disciplines, will expand the already wide range of applications in nucleoside chemistry of whole cell biocatalysis.

journal_name

Curr Pharm Des

authors

Lewkowicz ES,Iribarren AM

doi

10.2174/1381612823666171011101133

subject

Has Abstract

pub_date

2017-10-11 00:00:00

eissn

1381-6128

issn

1873-4286

pii

CPD-EPUB-86321

pub_type

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