Sustainable production of nucleoside analogues by a high-efficient purine 2′- deoxyribosyltransferase immobilized onto Ni2+ chelate magnetic microparticles
The present work aims to develop a magnetic biocatalyst for customized production of nucleoside analogues using mutant His-tagged purine 2′-deoxyribosyltransferase from Trypanosoma brucei (TbPDTV11S) immobilized onto Ni2+ chelate magnetic iron oxide porous microparticles (MTbPDTV11S). Biochemical ch...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2019 |
| País: | Colombia |
| Institución: | Corporación Universidad de la Costa |
| Repositorio: | Repositorio REDICUC |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.cuc.edu.co:11323/10739 |
| Acceso en línea: | https://hdl.handle.net/11323/10739 https://repositorio.cuc.edu.co/ |
| Access Level: | acceso abierto |
| Palabra clave: | Enzyme immobilization Bioprocesses Nucleoside analogues 2′-Deoxyribosyltransferases |
| Sumario: | The present work aims to develop a magnetic biocatalyst for customized production of nucleoside analogues using mutant His-tagged purine 2′-deoxyribosyltransferase from Trypanosoma brucei (TbPDTV11S) immobilized onto Ni2+ chelate magnetic iron oxide porous microparticles (MTbPDTV11S). Biochemical characterization revealed MTbPDTV11S5 as optimal candidate for further studies (10,552 IU g−1; retained activity 54% at 50 °C and pH 6.5). Interestingly, MTbPDTV11S5 displayed the highest activity value described up to date for an immobilized NDT. Moreover, MTbPDTV11S5 was successfully employed in the one-pot, one-step production of different therapeutic nucleoside analogues, such as cladribine or 2′-deoxy-2-fluoroadenosine, among others. Finally, MTbPDTV11S5 proved to be stable when stored at 50 °C for 8 h and pH 6.0 and reusable up to 10 times without negligible loss of activity in the enzymatic production of the antitumor prodrug 2′-deoxy-2-fluoroadenosine. |
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