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1. (WO1996005295) AN IMPROVED CLEANING COMPOSITION
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WHAT IS CLAIMED IS :
1. An improved bleach-containing cleaning composition, the improvement comprising adding to the bleach-containing composition a mutant alpha-amylase that is the expression product of a mutated DNA sequence encoding an alpha-amylase, the mutated DNA sequence being derived from a precursor alpha-amylase by the substitution of a methionine at a position equivalent to M+197 in B. licheniformis alpha-amylase and the substitution of one or more methionine or tryptophan at a position equivalent to M+15 or W+138 in B.
licheniformis alpha-amylase.

2. An improved cleaning composition of Claim 1 wherein the cleaning composition is a dish care cleaning composition.

3. An improved cleaning composition of Claim 1 wherein the mutant alpha-amylase is selected from the group consisting of M15T/M197T; M15S/M197T; W138Y/M197T; M15S/W138Y/M197T and M15T/W138Y/M197T.

4. An improved cleaning composition of Claim 1 further comprising a mutant protease that is the expression product of a mutated DNA sequence encoding a protease, the mutated DNA sequence being derived from a precursor protease by the substitution of a methionine at a position equivalent to M+222 in Bacillus amyloliquefaciens protease.

5. An improved cleaning composition of Claim 4 wherein the mutant protease comprises a substitution selected from the group of amino acids consisting of alanine, cysteine and serine.

6. An improved cleaning composition of Claim 4 comprising an alpha-amylase mutant selected from the group consisting of
M15T/M197T, M15S/M197T, W138Y/M197T, M15S/W138Y/M197T and
M15T/W138Y/M197T, and a protease mutant selected from the group consisting of M222C, M222S and M222A.

7. An improved cleaning composition of Claim 6 which is a
granular composition.