Table 1 Summary of the junctional conductance measurements.Summary of the junctional conductance measurements.. Data shown are the number of pairs recorded *n* (number of uncoupled pairs/number of coupled pairs) and the median value [interquartile] of rod/rod, rod/cone, and cone/cone transjunctional conductances measured in wild type [WT (B6)], pan or conditional knockouts, and their respective control littermates. A pair was considered coupled when conductance is >50 pS. Statistical differences between the mutant lines and their respective control groups are indicated (**P* < 0.05), nonparametric Kruskal-Wallis ANOVA. The median values of the four WT/control groups were averaged, and the mean (SEM) is shown in the bottom row. See figs. S9 and S10 for more details.