| CPC C12N 9/54 (2013.01) [C11D 3/38618 (2013.01); C12N 15/75 (2013.01); C12P 21/02 (2013.01)] | 22 Claims |
|
1. A mutant protease that consists of an amino acid sequence having an identity of at least 90% with the amino acid sequence as shown in SEQ ID NO: 2 and that has an amino acid residue selected from the group of consisting of aspartic acid, glutamic acid, phenylalanine, histidine, isoleucine, methionine, proline, glutamine, threonine, valine, tryptophan, and tyrosine at a position corresponding to position 303 of the amino acid sequence as shown in SEQ ID NO:2.
|