SDN-1::GFP transgenes were expressed in many ventral neuroblasts during their migrations, prior to and during epidermal enclosure; in later embryogenesis SDN-1::GFP was mainly expressed in the nervous system (nerve ring localization, nr) and pharynx (ph).
Expressed in nine DA, 11 AS, ALA, RID, two PDE, two HSN, M5, four vulval muscles 1, four vulval muscles 2, four uterine muscles 1, four uterine muscles 2, two intestine muscles, sphincter muscle, 15 diagonal muscles, two spicule retractors, bodywall muscles, two AM socket cells, two PH socket cells, two distal tip cells.
GFP was not detectable under the standard laboratory conditions. The GFP signal was observed solely in a vesicular compartment of coelomocytes of the animals treated with Concanamycin A (CON A) or NH4Cl, agents that increase the pH of the cellular acidic compartment. Immunofluorescence detection of the fusion protein using polyclonal anti-GFP antibody showed a broader and coarsely granular cytoplasmic expression pattern in body wall muscle cells, intestinal cells, and a vesicular compartment of coelomocytes.