Abstract
The main function of the single whey acidic protein domain (SWD)-containing protein in shrimp is unknown. To elucidate the function of the SWD-containing protein in vivo, the SWD-containing protein gene was isolated and characterized. A 9.3-kb shrimp SWD-containing protein gene, and a 3.9-kb 3′-flanking region. The shrimp SWD-containing protein gene contained three exons and two introns. Different fragments of the shrimp SWD-containing protein 5′-flanking region were transfected into HeLa cells. The promoter activities were assayed by basal human chorionic gonadotropin (HCG), luteinizing hormone-releasing hormone (LRH), and gonadotropin-releasing hormone (GnRH) treatments. The in vitro actions of the SWD-containing protein promoter expression pattern were studied by transfection of an SWD-containing protein promoter (1 kb)-driven green fluorescent protein (GFP) encoding the GFP cDNA transgene into the HeLa cell line, which was then microinjected into zebrafish Danio rerio embryos. These results indicate that the shrimp SWD-containing protein promoter might play an important role in gene regulation of sex hormones in mammalian cell lines and in gene regulation of developmental stages in zebrafish.
Published Version
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