GFP expression in kidney tubules and ducts: Cross section of 3dpf (A, B) and 6 dpf (C, D) Tg(enpep:GFP) larva stained with anti-GPF (green) and anti-Laminin (red) antibodies: GFP expression can be detected in both pronephric tubules (“t”, A, B) and ducts (“d”, C, D) as well as in podocyte like cells (arrowheads) of the glomerulus (“g” A, B). At 6 dpf several loops of the tubules are present (C). No expression is present in the intestine (i) esophagus (e), or liver (l).