Fig. 7.

In barium and calcium, mean baseline current size does not predict the mean degree of PKC-mediated current potentiation. The mean values for baseline current size and degree of potentiation for each of the splice variants expressed as homomers are plotted against one another to clarify the relationship between these two variables for the overall data set. A shows the relationship when recording in calcium solutions, whereasB summarizes the data collected in barium. Note how the presence or absence of N1 predicts current size in both COS (A) and BOS (B), whereas C1 presence or absence dictates the degree of potentiation in COS only.Open circles represent variants that do not contain C1, and the filled circles represent those that do. Error bars are ±SEM.