| abstract |
A method of treating and/or cleaning a surface, preferably a fabric surface comprising the steps of (i) contacting said surface with a composition in an aqueous wash liquor, said composition comprising an adjunct material and a protease variant wherein said protease variant is a variant of a parent protease said parent protease's sequence being at least 90% identical to the amino acid sequence of SEQ ID NO:1, wherein the amino acid positions of the protease variant are numbered according to the numbering of corresponding amino acid positions in the amino acid sequence of Bacillus amyloliquefaciens subtilisin BPN' shown in SEQ ID NO:2, wherein said protease variant comprises a mutation selected from T022A, T022R, T022Y, T022V, T022Q, T022L, T022W, and (ii) rinsing and/or drying the surface, wherein the temperature of the aqueous liquor is from 5 to 30°C. |