Figure 6.

The potentiation of [³H]CFT (10 nM) binding to membranes prepared from HEK 293 cells stably transfected with X-A90C resulting from reaction of MTSEA (A) or MTSET (B) at varying concentrations in the (■) presence of 3 μM cocaine or (□) in its absence. The means and SEM of two independent experiments each performed with triplicate determinations are shown.