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. 2018 Sep 13;12:72. doi: 10.3389/fnana.2018.00072

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Copyright © 2018 Jung, Szule, Stouder, Marshall and McMahan.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Similarities in the fusion domains of DCVs and SVs. Hemisphere of a docked DCV (A) and a docked SV (B) also shown in Figure 2, facing the presynaptic membrane. Ribs and pins surround both vesicles’ fusion domain (dashed line). The vesicle membrane-presynaptic membrane contact area (blue ovoid patch) occupies only a portion of the fusion domain. Images are from muscles fixed with an aqueous solution of glutaraldehyde and stained with aqueous solutions of osmium tetroxide and uranyl acetate. (B) Taken from Szule et al. (2012).