Figure 8. GABA promotes surface expression of GABAA receptors composed of α1β2 and α1β2(LL/AA) subunits.
HEK 293 cells were transfected with α1β2V5 or α1β2V5(LL/AA) subunit cDNAs. Cells were incubated throughout the transfection and expression period in the absence or presence of 100 μM GABA. Forty-two hrs post-transfection, cell surface and intracellular GABAA receptor populations were labeled by indirect immunofluorescence using an anti-V5 antibody and imaged by confocal microscopy. Images representative of at least 5 independent experiments each performed in triplicate.