Jessica C. Casciano

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Pah1p, which functions as phosphatidate phosphatase (PAP) in the yeast Saccharomyces cerevisiae, plays a crucial role in lipid homeostasis by controlling the relative proportions of its substrate phosphatidate and its product diacylglycerol. The diacylglycerol produced by PAP is used for the synthesis of triacylglycerol as well as for the synthesis of(More)
Alterations in N-linked glycosylation have long been associated with cancer but for the most part, the reasons why have remained poorly understood. Here we show that increased core fucosylation is associated with de-differentiation of primary hepatocytes and with the appearance of markers indicative of a transition of cells from an epithelial to a(More)
Chronic infection with hepatitis B virus (HBV) remains a major worldwide health concern and is the leading cause of hepatocellular carcinoma (HCC). The HBV X protein (HBx) is the only regulatory protein encoded in the HBV genome; HBx stimulates HBV replication in vivo and in vitro. HBx also regulates cytosolic Ca2+ signaling, and altered Ca2+ signaling is(More)
Many viruses modulate calcium (Ca2+) signaling to create a cellular environment that is more permissive to viral replication, but for most viruses that regulate Ca2+ signaling, the mechanism underlying this regulation is not well understood. The hepatitis B virus (HBV) HBx protein modulates cytosolic Ca2+ levels to stimulate HBV replication in some liver(More)
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