Fig. 1From: Selection and characterization of alanine racemase inhibitors against Aeromonas hydrophila Assays for screening alanine racemase-specific inhibitors. Alanine racemase converts l-alanine to d-alanine, providing a substrate for d-amino acid oxidase, which produces hydrogen peroxide. The combination of hydrogen peroxide, horseradish peroxidase, and a dye molecule leads to an insoluble colored product. Fluorescence intensity was measured in a microplate readerBack to article page