Patent ID: 7098001

Claim:
A method for producing a hydrolysate from a proteinaceous substrate which comprises subjecting the substrate to a polypeptide having dipeptidyl aminopeptidase activity and an endopeptidase, wherein the polypeptide having dipeptidyl aminopeptidase activity is selected from the group consisting of: (a) a polypeptide having an amino acid sequence which has at least 95% identity with amino acids 17 to 771 of SEQ ID NO:2; (b) a polypeptide which is encoded by a nucleic acid sequence which hybridizes under high stringency conditions with (i) nucleotides 49 to 2396 of SEQ ID NO. 1, or (ii) the cDNA sequence corresponding to nucleotides 49 to 2396 of SEQ ID NO. 1, wherein high stringency conditions are defined as prehybridization and hybridization at 42° C. in 5×SSPE, 0.3% SDS, 200 μg/ml sheared and denatured salmon sperm DNA, and 50% formamide, and washing with 2×SSC, 0.2% SDS at 65° C.; and (c) a fragment of (a) or (b), wherein the fragment has dipeptidyl aminopeptidase activity.