(A) Competition of iron uptake. The indicated amount of
FeCl3, ZnSO4, CdSO4, or
MnCl2 was added to the uptake assay as described in Fig.
4A. Solid bars represent IRT1, and striped bars
represent E103A. This experiment was performed twice; a representative
data set is shown. (B) Competition of zinc uptake. The
indicated amount of FeCl3, ZnSO4,
CdSO4, or MnCl2 was added to the uptake assay
as described in Fig. 4B. Solid bars represent IRT1, and
striped bars indicate D100A. This experiment was performed twice; a
representative data set is shown.