Simultaneous expression of cpxE34A.UAS.7A and nSybK83A.UAS under the control of Scer\GAL4elav-C155 results in a significant decrease in the frequency of miniature excitatory postsynaptic currents, mESPCs, at the larval neuromuscular junction compared to larvae expressing cpxUAS.7A with nSybUAS.cLa, but the magnitude of this reduction is comparable to that observed for either cpxE34A.UAS.7A or nSybK83A.UAS relative to their counterpart wild-type transgene-overexpressing controls.
Scer\GAL4elav-C155-driven expression of nSybK83A.UAS in the nSybΔF33B background leads to reduced frequency of mESPCs at the larval NMJ compared to the rescue line expressing nSybUAS.cLa but the amplitude as well as area of the evoked excitatory postsynaptic currents is comparable in both lines.