Synaptic vesicle protein SV2 (IPR022308)

Short name: SV2

Overlapping homologous superfamilies


Family relationships


SV2 proteins are abundant synaptic vesicle proteins expressed in two major (SV2A and SV2B) and one minor isoform (SV2C) that resemble transporter proteins. SV2B knockout mice are phenotypically normal while SV2A- and SV2A/SV2B double knockout mice exhibit severe seizures and die postnatally. Without SV2 proteins, presynaptic Ca2+ accumulation during consecutive action potentials causes abnormal increases in neurotransmitter release that destabilise synaptic circuits and induce epilepsy [PMID: 10624962].

GO terms

Biological Process

GO:0007268 chemical synaptic transmission

Molecular Function

No terms assigned in this category.

Cellular Component

GO:0016020 membrane

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.