Yellow fluorescent protein (YFP) tagged Merlin, endogenously expressed, is highly localized at the apical domain of living wing imaginal disc cells, predominately at the junctional and medial cortex.

A clone of wing imaginal disc cells (green) expressing dominant-negative Moesin crawling over the surface of the epithelium (epithelial marker red).

Drosophila larval salivary gland, a monolayered epithelial tube, expressing Merlin-GFP (green) and stained with propidium iodide (nuclei; red).

Optical section of a fold in the Drosophila wing epithelium stained for Moesin (red, apical membrane), E-cadherin (blue, adherens junctions) and Coracle (green, septate junctions).

Drosophila embryo (dorsal closure stage) stained with an anti-Coracle antibody.

Pupal eye from Drosophila stained with antibodies for the Notch protein.

Optical section of the Drosophila wing epithelium stained for actin (red) and Coracle (green) a component of the septate junction.

Drosophila Cdc42 mutant embryo, stained for Coracle (green), the peripheral nervous system (22C10, blue) and the central nervous system (anti-HRP, red).