Fig. 6. ArsJ substrate specificity. Transport assays in everted membrane vesicles prepared from E. coli strain AW3110pArsJ were performed as described in Experimental procedures.
Arsenicals were added at 5 mM, final concentration. (●), As(V); (○), As(III); (□), MAs(V); (▽), DMAs(V); (Δ), MAs(III). Vesicular arsenic was determined by ICP-MS. Data are the mean±SE (n=3).