Protéase alcaline

Alkaline protease

Alkaliprotease

Abstract

The invention relates to an alkaline protease having an amino acid sequence represented by SEQ ID NO:1 or another amino acid sequence having at least 80% homology to SEQ ID NO:1, the alkaline protease having enhanced specific activity to casein, wherein an amino acid residue at (a) position 163, (b) position 170 or (c) position 171 of SEQ ID NO:1, or at a position corresponding thereto has been selected from the following amino acid residues: (a) position 163: histidine, aspartic acid, phenylalanine, lysine, asparagine, serine, isoleucine, leucine, glutamine, threonine or valine; (b) position 170: valine or leucine, or (c) position 171: alanine, glutamic acid, glycine or threonine.

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