Fig 1. Tomosyn is a SNAP25 binding protein in the posterior pituitary.
(a) In vitro binding assay. Rat posterior pituitary lysates was incubated with GST-SNAP25 and glutathione (GSH) Sepharose. Eluted proteins bound to the beads were separated on SDS-PAGE followed by silver staining of proteins. The arrow indicates the band of interest. (b) Western blotting of pull-down samples. The arrowhead indicates the location of the immune reactive band reacting with anti-tomosyn antibody (Santa Cruz Biotechnology #sc-136105). Lane 1 = GST-SNAP25 with rat posterior pituitary lysates; lane 2 = GST-SNAP25 without rat posterior pituitary lysates (for both a, and b); Marker = molecular weight markers.