Enriched in cephalic sheath cell; muscle cell; neurons; and retrovesicular ganglion based on tiling array; RNA-seq; and microarray studies. Is affected by several genes including daf-2; skn-1; and hsf-1 based on microarray; tiling array; and RNA-seq studies. Is affected by fifteen chemicals including methylmercuric chloride; Mercuric Chloride; and procyanidin based on microarray and RNA-seq studies.