TABLE 1.

Effect of metabolic inhibitors on FOS transport rates in L. paracasei 1195

Treatment% InhibitionpMF (mV)b[ATP] (mM)c
Controla0−153 ± 42.03
Nigericin29−52 ± 31.68
Valinomycin5−44 ± 51.56
Nigericin + valinomycin42−24 ± 20.85
Monensin15−69 ± 41.58
Iodoacetate62−92 ± 10.06
NaF36−90 ± 20.58
  • a The control rate was 101 nmol of FOS accumulated per min per mg (dry weight) of cells.

  • b Averages ± standard deviations (n = 6).

  • c Intracellular concentrations.