Enriched in several structures, including distal tip cell; head mesodermal cell; intestine; neurons; and pharyngeal-intestinal valve based on tiling array; RNA-seq; single-cell RNA-seq; and microarray studies. Is affected by several genes including daf-16; daf-2; and skn-1 based on microarray; tiling array; and RNA-seq studies. Is affected by eleven chemicals including Zidovudine; Psoralens; and allantoin based on RNA-seq and microarray studies.