C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
C12N 15/56 (2006.01) C11D 3/386 (2006.01) C11D 7/42 (2006.01) C12N 9/28 (2006.01) D06L 1/14 (2006.01)
Patent
CA 2173329
A variant of a parent .alpha.-amylase enzyme having an improved washing and/or dishwashing performance as compared to the parent enzyme, wherein one or more amino acid residues of the parent enzyme have been replaced by a different amino acid residue and/or wherein one or more amino acid residues of the parent .alpha.-amylase have been deleted and/or wherein one or more amino acid residues have been added to the parent .alpha.-amylase enzyme, provided that the variant is different from one in which the methionine residue in position 197 of a parent B. licheniformis .alpha.-amylase has been replaced by alanine or threonine, as the only modification being made. The variant may be used for washing and dishwashing.
Variant d'une amylase-.alpha. parente, présentant des caractéristiques détergentes améliorées, tant pour la lessive que pour la vaisselle, par rapport à celles de l'enzyme parente. On obtient ce variant en remplaçant un ou plusieurs restes d'aminoacide de l'enzyme parente par un reste d'aminoacide différent, et/ou en supprimant un ou plusieurs restes d'aminoacide de l'amylase-.alpha. parente, et/ou en ajoutant un ou plusieurs restes d'aminoacide à l'amylase-.alpha., à condition que ce variant soit différent de celui dans lequel la seule modification consiste à remplacer le reste méthionine en position 197 d'une amylase-.alpha. parente de B. licheniformis par alanine ou thréonine. Ce variant peut être utilisé dans des détergents pour la lessive ou la vaisselle.
Bisgard-Frantzen Henrik
Borchert Torben Vedel
Svendsen Allan
Thellersen Marianne
Van Der Zee Pia
Mccarthy Tetrault Llp
Novo Nordisk A/s
Novozymes A/s
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