nhr-80 encodes a nuclear hormone receptor, expressed in the intestine,that regulates expression of the delta-9 desaturases FAT-5/-6/-7, andthus regulates fatty acid metabolism; NHR-80 is fully required for anyexpression of FAT-7, full expression of FAT-5/-6, viability in theabsence of FAT-6, and transcriptional hyperactivation of fat-7 in theabsence of FAT-6, and for a fully normal adult lifespan; nhr-80 isexpressed robustly in the intestine during larval and adult stages ofdevelopment, with some expression also seen in head muscles; nhr-80 isspecific to nematodes, being a divergent ortholog of HNF4 with manyparalogs in C. elegans; nhr-80(tm1011) mutants, like nhr-49 mutants,have an increased ration of saturated 18:0 fatty acids tomonounsaturated 18:1 ones (4.6 instead of 2.2); nhr-80(tm1011) mutantsare viable and fertile and have no increase in fat storage, but doublefat-6(tm331);nhr-80(tm1011) mutants, (or fat-6(tm331) mutants subjectedto nhr-80(RNAi), are synthetically lethal unless cultured on mediasupplemented with desaturated fatty acids.
Predicted to enable DNA-binding transcription factor activity; sequence-specific DNA binding activity; and zinc ion binding activity. Involved in determination of adult lifespan; positive regulation of metabolic process; and post-embryonic development. Located in nucleus. Expressed in head; intestine; muscle cell; somatic nervous system; and tail neurons.
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.