Figure 4. Ionotropic glutamate receptor expression in mouse bipolar cells

Rod bipolar cells (RBC), YFP⁺ CB4a cone bipolar cells from transgenic mouse line 357, and other, YFP^- bipolar cells from the same mouse line were tested. Black rectangles indicate a positive PCR result. The rectangles for the AMPA receptors GluR1-4 are divided to indicate expression of the flip (upper left) and the flop (lower right) isoforms of these receptors.