PubMed · 885758
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H D Suit. Superfractionation.. https://doi.org/10.1016/0360-3016(77)90173-0
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The regulation of the latent promoter BC-R2 of Epstein-Barr virus (EBV) was examined using the chloramphenicol acetyl transferase (CAT) gene reporter system. A 5' deletion analysis of BC-R2 promoter sequences has been used to characterize a region, described previously as a transcriptional enhancer in EBV positive cell lines, which can repress the BC-R2 transcriptional activity in EBV negative cell lines.
The effect of interferon-alpha on Daudi lymphoma cells either sensitive or resistant to the action of this cytokine has been analysed in terms of phospholipase C (PLC) and D (PLD) activities. Results have shown a combined modulation of PIP2-specific phospholipase C and phospholipase D. In particular, a decreased activity of PIP2-specific PLC has been found, concomitant to a PLD-mediated phosphatidylcholine hydrolysis, suggesting that the intracellular signalling activated by interferon in Daudi cells involves a phospholipase D/phosphohydrolase pathway.
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