Figure 2.
![Figure 2. Time course and concentration dependence of [3H]-l-arginine uptake by K562 cells. (A) Uptake of [3H]-l-arginine by K562 cells over 20 minutes was measured at 37°C and pH 7.4. • and ○ represent the uptake in the presence and absence of Na+ (replaced with N-methylglucamine), respectively. Points are means of 4 independent experiments, and error bars indicate SE. (B) Eadie-Hofstee plot of [3H]-l-arginine uptake by K562 cells. The best-fit nonlinear least-squares regression lines were obtained using MULTI.](https://ash.silverchair-cdn.com/ash/content_public/journal/blood/107/4/10.1182_blood-2005-08-3166/2/zh80040691210002.jpeg?Expires=1735535972&Signature=RTtAb6I8oGGoqvFtSLVIklX1cVy2PLDC1GCXz6qOzCpHYT8sBIU0doC74bhzHmK6iO8DBdZSF46xhxnvmX3~r1R7iEMNaIzZpeTU-ugsdCGQ1dYZFGgVhvt8ILCKnQdkptrMqhrEAhMu9z4lSTvf6XGg8587yHUtLD~B2kfYCLjXmePYJTeLWet64kx139xh20ZHNIFa8QpcwGL-UQM7Ol7LBGjstGJzRNT2GHoa9W4EZ5wckN20Q7d4wjxxKbrZYxMPhfir66EPkIryKyfEckTD1pkpU3D9n0fJDj1fSmauW4Rtmxw~SCz9BjZbwhNgKu~zY0FaxFCue269LbsOIQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Time course and concentration dependence of [3H]-l-arginine uptake by K562 cells. (A) Uptake of [3H]-l-arginine by K562 cells over 20 minutes was measured at 37°C and pH 7.4. • and ○ represent the uptake in the presence and absence of Na+ (replaced with N-methylglucamine), respectively. Points are means of 4 independent experiments, and error bars indicate SE. (B) Eadie-Hofstee plot of [3H]-l-arginine uptake by K562 cells. The best-fit nonlinear least-squares regression lines were obtained using MULTI.
