PhoPc derivatives of the pagA : : pagB : : Mu dJ strains produced 980 U , respectively , of P-galactosidase in an increase of 9-to 10-fold over values for the fusion strains with a wild-type phoP locus .
PhoPc derivatives of the pagA : : pagB : : Mu dJ strains produced 480 U , respectively , of P-galactosidase in an increase of 9-to 10-fold over values for the fusion strains with a wild-type phoP locus .
PhoPc derivatives of the pagA : : Mu dJ : : Mu dJ strains produced 980 U , respectively , of P-galactosidase in an increase of 9-to 10-fold over values for the fusion strains with a wild-type phoP locus .
PhoPc derivatives of the pagA : : Mu dJ : : Mu dJ strains produced 480 U , respectively , of P-galactosidase in an increase of 9-to 10-fold over values for the fusion strains with a wild-type phoP locus .