Affiliation:
1. Department of Agricultural Chemistry, Faculty of Agriculture, Kyoto University, Japan.
Abstract
Fructosyl amino acid oxidase, and enzyme that can be used for the determination of glycated proteins in blood samples from diabetic patients, was used to screen cultures in our microorganism culture collection. Fructosyl amino acid oxidase was found only in the strains of four genera of fungi, Aspergillus, Fusarium, Gibberella, and Penicillium and exhibited different substrate specificities against fructosyl valine and N epsilon-fructosyl N alpha-Z-lysine. A fructosyl valine-specific enzyme from Penicillium janthinellum AKU3413 was monomeric (M(r), 49,000), was most active at 35 degrees C and pH 8.0, and had a covalently bound flavin adenine dinucleotide as a prosthetic group.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
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