Caenorhabditis elegans

SEX-1

CELE_F44A6.2, nhr-24, cnr14, F44A6.2
sex-1 encodes a DNA-binding protein that is a member of the nuclear hormone receptor superfamily of transcriptional regulators; during embryonic development, SEX-1 functions as an X chromosome signal element that transmits the primary sex-determination signal by negatively regulating transcription of xol-1, a gene whose expression levels correlate with hermaphrodite or male development (low xol-1 levels result in hermaphrodite development, high xol-1, in that of males); in vivo, SEX-1 can associate with extrachromosomal arrays containing the xol-1 promoter, indicating that SEX-1's affect on xol-1 transcription is likely to be direct; SEX-1 localizes to nuclei from oogenesis through mid-embryogenesis, with highest levels of expression visible during early gastrulation (28-100-cell-stage); the SEX-1 expression pattern appears to be similar in hermaphrodites and males.

External Database Linkouts

WormBase | Entrez Gene | RefSeq | UniprotKB
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