Enriched in anterior hypodermis; arcade cell; mechanosensory neurons; pharyngeal-intestinal valve; and pharynx based on microarray; tiling array; proteomic; and single-cell RNA-seq studies. Is affected by several genes including daf-16; daf-2; and skn-1 based on microarray; tiling array; RNA-seq; and proteomic studies. Is affected by twenty-three chemicals including 1-methylnicotinamide; rotenone; and multi-walled carbon nanotube based on RNA-seq and microarray studies.