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. Author manuscript; available in PMC: 2010 Sep 23.
Published in final edited form as: Mol Microbiol. 2007 Apr;64(2):407–420. doi: 10.1111/j.1365-2958.2007.05664.x

Fig. 4.

Fig. 4

Chloroquine efflux kinetics under ‘reverse varying-trans’ conditions, in glucose-free medium. P. falciparum-infected erythrocytes were pre-loaded with comparable amounts of [3H]-chloroquine, washed and placed in glucose-free medium (replacing glucose by an equal amount of 2-deoxyglucose) containing the following concentrations of cold chloroquine: 0.0 μM (circles), 0.1 μM (squares), 1.0 μM (triangles).

A. CQS parasite HB3.

B. CQR parasite Dd2.

The grey squares (0.1 μM external chloroquine) show the effect of addition of 10 μM verapamil at zero time (dotted line). The means ± SEM of at least three independent determinations are shown.