Patent ID: 8790905

Claim:
A DNA of any one of [1] or [2] below: [1] a DNA encoding the protein of any one of (i) to (iv) below; (i) a protein comprising the amino acid sequence represented by SEQ ID NO:1; (ii) a protein comprising an amino acid sequence with one to ten amino acid deletions, substitutions, or additions in the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; (iii) a protein comprising an amino acid sequence having 99% or higher homology to the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; and (iv) a protein having fructosyl peptide oxidase activity, which is encoded by an expression plasmid harbored by the Escherichia coli XL1-Blue MRF′ strain deposited under Accession No. FERM BP-11026; [2] a DNA comprising the nucleotide sequence represented by SEQ ID NO: 2.