Table 1.

Effects of Syt-C and Syt-C M on vesicle number and percentage of docked vesicles per cluster morphometrical analysis

	Mean number of vesicles per millimeter squared	Percent docked vesicles per cluster
Syt-C1	46.00  ± 7.5	6.48
Syt-C2	48.00  ± 2.1	8.32
Syt-C M1	43.2  ± 7.8	23.9
Syt-C M2	49.5  ± 6.2	27
Mean Syt-C	47.00  ± 4.8	7.4
Mean Syt-CM	46.35  ± 7.0	25.45

Vesicle number is the mean number of synaptic vesicles per micromillimeter squared clustered near the active zones (mean ± SEM). Docked vesicles are those in direct contact with the presynaptic membrane. Mean Syt-C and average controls are the mean from the two Syt-C injected and two Syt-CM injected synapses, respectively.