Summary of the estimated properties of AMPA receptors in hot spots with single and multiple synapses
| Single synapse | Multiple synapses | |
|---|---|---|
| Distance from the neighboring synapse | r > 2.3 μm | r < 2.3 μm |
| 10-90% rise time (ms) | 2.7 ± 0.7 | 3.6 ± 0.4 |
| 62% decay time (ms) | 15.3 ± 3.2 | 17.8 ± 2.0 |
| Single-channel conductance (pS) | 8.0 ± 1.1 | 11.6 ± 1.1 |
| Number of AMPA receptors | 154 ± 56 | 90 ± 6 |
| Peak open probability | 0.57 ± 0.08 | 0.60 ± 0.05 |
| Density of AMPA receptors (/μm2) | 1630 ± 190 | — |
| Number of samples | 3 | 5 |
Values were not corrected for RC filtering and are expressed as mean ± SEM. The density of AMPA receptors was estimated only from single synapses.