Genetic or pharmacological disruption of dSlo eliminates the differences in synaptic transmission between mut^IP1 and WT^P41 flies. (A) Averaged EJC traces from Slob-null and control lines. The difference in the EJC (A) is not observed in the Slo4 genetic background (B) or in the presence of 1 mM TEA (C). (D) Sample mEJC traces from Slo4 flies crossed to either Slob WT or null flies, or from control and Slob-null lines in the absence or presence of 1 mM TEA. Pooled data are shown in Table II.