Zebrafish Scn1ba_tv1 but not Scn1ba_tv2 is expressed in optic nerve. Sections generated from 13 dpf zebrafish were stained with anti-Scn1ba_tv1 or anti-Scn1ba_tv2 and anti-acetylated α-tubulin. A – C: Anti Scn1ba_tv1 (green), anti-acetylated α-tubulin (red). D – F: Anti-Scn1ba_tv2 (green), anti-acetylated α-tubulin (red). Images were viewed with an Olympus FluoView 500 confocal microscope at 100× magnification with 5× additional zoom. Scale bar: 50 μm.