Fig. 5. NAB-1::GFP is expressed in epithelia and in the nervous system. (A,B) Embryos carrying NAB-1::GFP from its own promoter (hpIs66) are shown with fluorescence (A) or DIC (B) microscopy. (C-E) hpIs66 animals express NAB-1::GFP in the nervous system (nerve ring, and dorsal and ventral nerve cord) and excretory canal. By the L4 stage, NAB-1::GFP is also seen in the developing vulva (E). (F,G) Enlarged portions of the dorsal nerve cord from D, and ventral cord from E are shown. Arrowheads show punctate expression pattern of NAB-1::GFP. Scale bar: 5 µm. ec, excretory canal; nr, nerve ring; vc, ventral cord; dc, dorsal cord.