Shows using czcR and czcS deletion mutants, reporter assays, and cDNA analysis that the CzcRS two-component system regulates czcCBA mRNA synthesis in response to zinc, cobalt, and cadmium.
"Experiments on (i) growth of these strains in liquid culture containing 5 mM Zn2+, (ii) induction of the beta-galactosidase in the reporter strains by zinc, cobalt, and cadmium, and (iii) cDNA analysis of czcCBA mRNA synthesis under inducing and noninducing conditions showed that the CzcRS two-component regulatory system is involved in Czc regulation."