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. 1999 Feb 2;96(3):1094–1099. doi: 10.1073/pnas.96.3.1094

Figure 3.

Figure 3

msec7-1 expressing synapses have a higher frequency of spontaneous synaptic currents. (A) Representative traces of SSCs recorded from muscle cells that were innervated either by a control neuron (upper left) or by an msec7-1-containing neuron (lower left). The currents on the muscle cells are shown as downward deflections and represent single SSCs. (Bars = 0.5 s and 0.5 nA.) The corresponding amplitude distributions of the SSCs are shown on the right. (B and C) Summary of SSC frequency (B) and amplitude (C) of control and msec7-1-containing synapses. The average SSC frequency was 0.1 ± 0.02 Hz in control neurons (mean ± SEM; 153 SSCs, 13 cells) and 0.5 ± 0.12 Hz in msec7-1 neurons (mean ± SEM; 892 SSCs, 17 cells). The average SSC amplitude was 281 ± 22.7 pA and 345 ± 11.5 pA (mean ± SEM) for control and msec7-1 neurons, respectively. Error bars are given as SEM.