Table 2.

The distribution of synaptosomal-associated protein isoforms at the neuromuscular junction and in different neuronal populations in the central nervous system

SNAP isoform expression at the neuromuscular junction	SNAP isoform expression in the hippocampus/cortex excitatory neurons	SNAP isoform expression in the hippocampus/cortex inhibitory neurons
SNAP-25 (Washbourne et al, 2002)	SNAP-25 (mainly Vglut-1; F Conti, L Bragina, G Fattorini, S Giovedi, F Benfenati, C Candiracci, unpublished data)	SNAP-25 (largely undetectable; Verderio et al, 2004; Frassoni et al, 2005; F Conti, L Bragina, G Fattorini, S Giovedi, F Benfenati, C Candiracci, unpublished data, but see Tafoya et al, 2006)
SNAP-23 (to be defined)	SNAP-23 (mainly Vglut-2; F Conti, L Bragina, G Fattorini, S Giovedi, F Benfenati, C Candiracci, unpublished data)	SNAP-23 (subpopulation only; F Conti, L Bragina, G Fattorini, S Giovedi, F Benfenati, C Candiracci, unpublished data)
SNAP-47 (to be defined)	SNAP-47 (Holt et al, 2006)	SNAP-47 (to be defined)
SNAP-29 (to be defined)	SNAP-29 (Pan et al, 2005)	SNAP-29 (to be defined)

SNAP, synaptosomal-associated protein.