Fig. 1: The full set of behaviors that STEPS implements for Vesicle and Raft modeling, described further in text.
From: Vesicle and reaction-diffusion hybrid modeling with STEPS

As such, models like the synaptic vesicle cycle including trafficking, docking, exocytosis and endocytosis are supported, as well as variations on those models such as kiss-and-run fusion and recycling. These vesicle models can exist alongside and interact with voxel-based reaction-diffusion and bioelectrical cellular models.