This
mab-31 2Kb 5' flanking sequence was active in gut cells of the pretzel-stage embryo and throughout the larval stages. In adult males and hermaphrodites, gfp reporter signal was observed in the pharynx, body hypodermis, and intestine. On the other hand,
mab-31 expression is also observed in support cells of neuronal sensilla, like amphid socket cells and phasmid socket cells. In the wild-type male tail, the
mab-31 transcriptional reporter expression was detected in structural cells highlighting the cell bodies and processes of all sensory rays.