Exploring the reversal of enantioselectivity on a Zinc-dependent Alcohol Dehydrogenase
Alcohol Dehydrogenase (ADH) enzymes catalyse the reversible reduction of prochiral ketones to the corresponding alcohols. These enzymes present two differently shaped active site pockets, which dictate their substrate scope and selectivity. In this study, we computationally evaluate the effect of tw...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10256/13862 |
| Acceso en línea: | http://hdl.handle.net/10256/13862 |
| Access Level: | acceso abierto |
| Palabra clave: | Enzims Enzymes Catàlisi Catalysis Dinàmica molecular Molecular dynamics |
| Sumario: | Alcohol Dehydrogenase (ADH) enzymes catalyse the reversible reduction of prochiral ketones to the corresponding alcohols. These enzymes present two differently shaped active site pockets, which dictate their substrate scope and selectivity. In this study, we computationally evaluate the effect of two commonly reported active site mutations (I86A, and W110T) on a secondary alcohol dehydrogenase from Thermoanaerobacter brockii (TbSADH) through Molecular Dynamics simulations. Our results indicate that the introduced mutations induce dramatic changes on the shape of the active site, but most importantly they impact the substrate-enzyme interactions. We demonstrate that the combination of Molecular Dynamics simulations with the tools POVME and NCIplot correspond to a powerful strategy for rationalising and engineering the stereoselectivity of ADH variants |
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