TABLE 1 Kinetic analysis for hCNT3-mediated uptake of labeled nucleosides
Rates of Na+-dependent intracellular accumulation of [14C]5-azaCyd, [14C]cytidine, [3H]uridine, and [3H]5-F-5′-dUrd were determined in hCNT3-transfected MDCK cells under substrate concentrations described under Materials and Methods. The Km values were calculated from double-reciprocal plots. Data represent mean values ± S.D. from a triplicate determination.