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The filamentous fungus Aspergillus oryzae, also named as the koji mold, is a preferred host for enzyme production due to its prominent secretion ability into the culture medium. Fungal laccases are widely used in different industrial processes, especially in removing environmental pollutants. Up till now, little was known about the roles of some laccase genes from the black mold Aspergillus niger. The McoD laccase gene from A. niger includes three exons interrupted by two short introns. The respective coding sequence of the gene is computationally predicted to encode a secreted laccase of 563 amino acids. In this study, a binary vector carrying the A. niger McoD gene was successfully constructed for heterologous expression in the edible fungus A. oryzae. | Construction of a binary vector for the expression of the Aspergillus niger McoD laccase gene in the industrial filamentous fungus Aspergillus oryzae
