The gene for barley endopeptidase B (EPB) has been expressed in the fi
lamentous fungus Trichoderma reesei from the cbh1 promoter. The EPB si
gnal sequence allowed secretion of over 90% of the recombinant protein
. Yields reached about 500 mg of immunoreactive protein per liter and
exceeded values for any other protein derived from a higher eukaryotic
organism produced in T. reesei.