Table 3. Interaction parameters (diffusion coefficients and mobile fractions) of Syn1A and cdVAMP2 in a sponge phase, in the absence or presence of Munc18-1.

FITC-labeled molecules are indicated with a star. Two-sample t-tests on fast diffusion components: cdVAMP2* vs. Syn1A+cdVAMP2* (p<0.05); cdVAMP2* vs. Syn1A+cdVAMP2*+Munc18 (non-significant); Syn1A+cdVAMP2* vs. Syn1A+cdVAMP2*+Munc18 (p<0.05). Two-sample t-test on slow diffusion components: Syn1A* vs. Syn1A+cdVAMP2* (non-significant).

	Syn1A*	cdVAMP2*	Syn1A+cdVAMP2*	Syn1A+cdVAMP2*+Munc18
D/fast (μm2/s)	N/A	5.5 ± 0.8	9.7 ± 1.4	6.4 ± 1.1
Mobile/fast (%)	N/A	97 ± 1	64 ± 4	87 ± 4
D/slow (μm2/s)	2.3 ± 0.6	N/A	2.0 ± 0.1	N/A
Mobile/slow (%)	99 ± 1	N/A	28 ± 8	N/A