jun-1 encodes a basic-leucine zipper (bZIP) transcription factor that is the C. elegans JUN homolog; jun-1 activity is essential for regulation of ovulation, and thus normal levels of fertility; in regulating ovulation, JUN-1 functions with FOS-1 to regulate expression of plc-1 which encodes a phospholipase C essential for IP3 production and ovulation; in addition, JUN-1 interacts with FOS-1 in vitro to form heterodimers capable of binding upstream regulatory sequences of egl-13, which encodes a transcription factor required for uterine cell fate specification; jun-1 is expressed in the uterus and the spermatheca.
Enables RNA polymerase II-specific DNA-binding transcription factor binding activity and sequence-specific DNA binding activity. Involved in several processes, including determination of adult lifespan; positive regulation of RNA splicing; and response to starvation. Located in nucleus. Expressed in several structures, including excretory cell; hermaphrodite gonad; nervous system; pharyngeal-intestinal valve; and pharynx. Human ortholog(s) of this gene implicated in several diseases, including carcinoma (multiple); gastrointestinal system cancer (multiple); and lymphoma (multiple). Is an ortholog of human JUN (Jun proto-oncogene, AP-1 transcription factor subunit); JUNB (JunB proto-oncogene, AP-1 transcription factor subunit); and JUND (JunD proto-oncogene, AP-1 transcription factor subunit).
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.