Novel alcohol dehydrogenases

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 9/04 (2006.01) C12N 15/31 (2006.01)

Patent

CA 2557175

The invention relates to novel polypeptides which have the biological activity of an NAD- or NADP-dependent alcohol dehydrogenase. The invention furthermore relates to nucleic acids encoding said polypeptides, to non-human hosts or host cells and to reaction systems which may be used for preparing desired products. The polypeptides of the invention are preferably used in the preparation, starting from aldehydes or ketones, of primary and enantiomerically pure secondary alcohol~s which may serve as intermediates for medicaments. Alternatively, the polypeptides of the invention may also be employed in the reverse reaction, i.e. the oxidation of alcohol~s with the formation of aldehydes or ketones.

La présente invention concerne de nouveaux polypeptides qui possèdent l'activité biologique d'une alcool déshydrogenase dépendant de NAD ou de NADP. Cette invention concerne aussi des acides nucléiques codant pour ces polypeptides, des hôtes non humains ou des cellules hôtes et des systèmes de réaction qui peuvent être utilisés pour préparer des produits recherchés. Les polypeptides de l'invention sont utilisés dans la préparation, à partir d'aldéhydes et de cétones, d'alcools primaires et secondaires énantiomériquement purs qui peuvent servir d'intermédiaires pour des médicaments. Dans une variante, les polypeptides de l'invention peuvent aussi être utilisés dans la réaction inverse, c'est-à-dire l'oxydation de l'alcool avec la formation d'aldéhydes ou de cétones.

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