In addition, mutants with transposon and site-specific integration mutations in the prfA gene or its promoter region were defective in the expression of the plcA, plcB, hly, and mpl gene products (5, 39).
In addition,mutants with transposon and site-specific integration mutationsin the prfA gene or its promoter region were defectivein the expression of the plcA, plcB, hly, and mpl geneproducts (5, 39).