function:Potentially involved in docking of synaptic vesicles at presynaptic active zones.,similarity:Belongs to the syntaxin family.,similarity:Contains 1 t-SNARE coiled-coil homology domain.,
[Isoform A]: Apical cell membrane ; Single-pass type IV membrane protein . Localized to the inner and outer plexiform layers, the cell body and the inner segments of photoreceptors. .; [Isoform 3]: Nucleus .
[Isoform A]: Expressed in small intestine, kidney, pancreas, placenta as well as in retina. Weaker expression in lung, liver and heart. Not expressed in brain and skeletal muscle. ; [Isoform B]: Expressed only in the retina. ; [Isoform 3]: Ubiquitously expressed.