Cloning and characterization of an antibacterial l-amino acid oxidase from Crotalus durissus cumanensis venom

► Antibacterial activity of l-amino acid oxidase from Crotalus durissus cumanensis venom was detected. ► Complete 498-amino-acid sequence was deduced through cDNA and protein sequencing. ► CdcLAAO exhibited antimicrobial activity against Staphylococcus aureus and Acinetobacter baumanni but not against Escherichia coli.