| abstract |
The invention relates to proteases comprising an amino acid sequence which has at least 70% sequence identity with the amino acid sequence given in SEQ ID NO: 1 over its entire length and (a) at the position corresponding to position 271, an amino acid substitution, in particular the amino acid substitution 271E; and (b1) at least one of the positions corresponding to positions 18, 61, 92, 99, 137, 149, 156, 159, 162, 172, 192, 199, 217 or 265, at least one more amino acid substitution; and / or (b2) at the positions corresponding to positions 9, 130, 144 and 252, having amino acid substitutions 9T, 130D, 144K and 252T, and their preparation and use. Such proteases show a very good cleaning performance. |