Figure 5.

Effects of competing amino acids to ClAAP3 and ClAAP6 mediated amino acid uptake. (a) Effects of competing amino acids on [³H]-Arg uptake by ClAAP3. (b) Effects of competing amino acids on [³H]-Pro uptake by ClAAP6. In both experiments, [³H]- labeled amino acids were supplied at 1 mM concentration, whereas the competing unlabeled amino acids were supplied at five-fold concentrations (i.e., 5 mM). The values are expressed as % of cells that did not receive any competing amino acids. Error bars represent standard deviation (n = 3).