Table 1. Labeling intensity and median distance of label for GKAP in the PSD complex under control and high K+ conditions.
| Labeling intensity (# label/μm PSD) mean ± SEM (n) = number of synaptic profiles measured | Median distance (nm) from postsynaptic membrane (n) = number of labels measured | |||
|---|---|---|---|---|
| control | High K+ | Control | High K+ | |
| Exp 1 | 23.4 ± 1.6 (58) | 21.6 ± 1.6 (44) N.S. | 26.7 (300) | 30.0 (183) P<0.05 |
| Exp 2 | 19.7 ± 2.0 (30) | 20.8 ± 1.3 (47) N.S. | 33.3 (188) | 26.7 (295) N.S. |
| Exp 3 | 23.6 ± 2.3 (30) | 17.7 ± 1.6 (46) P<0.05 | 26.7 (140) | 33.3 (215) N.S. |
| Exp 4 | 17.5 ± 1.5 (44) | 17.8 ± 2.3 (33) N.S. | 30.0 (191) | 30.0 (150) N.S. |
| mean | 21.0 ± 1.5 | 19.5 ± 1.0 | 29.2 ± 1.6 | 30 ± 1.3 |
Statistical analysis: labeling intensity, Student’s t-test; median distance, Wilcoxon rank-sum test. N. S.: not significant.