Cleaved SNAP-25 is mainly localized within cholinergic, SV2C-positive terminals in the retina. A , Confocal images of a single optical section through the inner plexiform layer showing colocalization of cleaved SNAP-25 (red) with choline acetyltransferase (ChAT; green). B , Confocal images of a single optical section through the inner plexiform layer showing colocalization of cleaved SNAP-25 (red) with SV2C (green). The ganglion cell layer is down. Scale bar, 10 μm.