Proteins in the synaptic vesicles and have a role in Ca²⁺-involved release of neurotransmitters, and in general in exo- and endocytosis. Exocytosis of synaptic vesicles is controlled by complexin and synaptotagmin (Tang J et al 2006 Cell 126:1175).  synaptojanin,  syntaxin,  complexin,  synapse,  snare; Fernandez-Chacon R et al 2001 Nature [Lond] 410:41; Hui E et al 2005 Proc Natl Acad Sci USA 102:5210.