Subtilase variants having an improved wash performance on...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 9/54 (2006.01) C11D 3/386 (2006.01)

Patent

CA 2394971

The present invention relates to the use of a subtilase variant for removal of egg stains from laundry or from hard surfaces, where the subtilase variant comprises at least one additional amino acid residue in the active site loop (b) region from position 95 to 103 (BASBPN numbering). These subtilase variants are useful exhibiting excellent or improved wash performance on egg stains when used in e.g. cleaning or detergent compositions, including automatic dishwash compositions. The present invention also relates to novel subtilase variants, to isolated DNA sequences encoding the variants, expression vectors, host cells, and methods for producing and using the variants of the invention. Further, the present invention relates to cleaning and detergent compositions comprising the variants of the invention.

L'invention concerne l'utilisation d'un variant de subtilase afin d'éliminer les taches d'oeuf sur des tissus ou des surfaces dures. Ce variant de subtilase contient au moins un résidu d'acide aminé additionnel dans la région de la boucle du site actif (b) de la position 95 à la position 103 (numérotation BASBPN). Ces variants de subtilase présentent une excellente ou une meilleure performance de nettoyage sur les taches d'oeuf lorsqu'il sont utilisés, par exemple, dans des compositions de nettoyage ou dans des détergents, y compris les compositions pour lave-vaisselle automatiques. L'invention concerne également de nouveaux variants de subtilase, des séquences isolées d'ADN codant pour ces variants, des vecteurs d'expression, des cellules hôtes et des méthodes de production et d'utilisation des variants selon l'invention. L'invention concerne en outre des compositions de nettoyage ou des détergents contenant les variants selon l'invention.

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