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Repression of endogenous retroviruses (ERVs) in mammals involves several epigenetic mechanisms. Acute loss of the maintenance methyltransferase Dnmt1 induces widespread DNA demethylation and transcriptional activation of ERVs, including CpG-rich IAP (intracisternal A particle) proviruses. Here, we show that this effect is not due simply to a loss of DNA methylation. Conditional deletions reveal that...
The fungal Zds proteins are regulators of the serine/threonine phosphatase 2A (PP2A) and the protein kinase A. Here, we characterize a Zds‐like gene ZDS3 that plays a broad range of roles in the basidiomycetous pathogenic yeast Cryptococcus neoformans. ZDS3 harbors the conserved activation domain ZDS_C of Zds proteins. By gene disruption, ZDS3 is shown to play roles in capsule production, cell wall...
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