Figure 7.
Epac1 expression within the bipolar cell terminals. Double-labeling of Epac1 (A) with VGlut1 (B). VGlut specifically labels bipolar cell ribbon synapses within the IPL. Epac1 (C) weakly colocalized with VGlut1, primarily within the larger terminals located at the inner boundary of the IPL, indicative of rod bipolar cell terminals (arrow). Scale bar = 10μm.