Figure 3.
Concentration dependence of specific [14C]spermidine binding to total proteins solubilized from zucchini PM vesicles. Different amounts of unlabeled spermidine were added to 5.55 kBq [14C]spermidine to give the final spermidine concentrations shown. The values are means ± sd of multiple samples from three replicate experiments. prot, Protein.