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The budding yeast RENT complex, consisting of at least three proteins (Net1, Cdc14, Sir2), is anchored to the nucleolus by Net1. RENT controls mitotic exit, nucleolar silencing, and nucleolar localization of Nop1. Here, we report two new functions of Net1. First, Net1 directly binds Pol I and stimulates rRNA synthesis both in vitro and in vivo. Second, Net1 modulates nucleolar structure by regulating...
The ability of a human cytomegalovirus-encoded homolog of MHC class I molecules to serve as a peptide receptor was investigated. Sequencing of peptide material eluted from the purified viral protein revealed a mixture of endogenous peptides with characteristics similar to those eluted from conventional class 1 molecules, that is, anchor residues, and a predominance of short peptides derived from cytoplasmic...
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