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. 2016 Jun 30;6:28938. doi: 10.1038/srep28938

Figure 3. ATP-induced suppression of glycine currents in OFF-GCs is mediated by P2 receptors.

Figure 3

(A) Representative current traces, taken from an OFF-GC, showing that during perfusion of PPADS (100 μM) and suramin (Sur) (50 μM), application of ATP (100 μM) no longer suppressed the glycine current. (B) Current traces of an OFF-GC, showing that in the presence of Evans blue (200 μM), 100 μM ATP still suppressed the glycine current. (C,D) Representative recordings obtained from two different OFF-GCs, showing that in the presence of 2 μM MRS2500 (C) or 50 μM NF157 (D), ATP persisted to suppress the glycine currents. Note that extracellular application of 2 μM MRS2500 per se suppressed the current (C), and the ATP-induced suppression of glycine currents was partially attenuated by MRS2500/NF157. (E,F) Current traces of two different OFF-GCs, showing that application of 100 μM MRS2365 (E) or 10 μM NF546 (F) suppressed the glycine currents. Each bar chart in A-F shows the statistical analysis of the data. ***P < 0.001 vs. control (B,E,F); **P < 0.01, as compared to the current amplitudes before ATP application (C,D).