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Prisca Ornaghi
Researcher at Sapienza University of Rome
Publications - 10
Citations - 944
Prisca Ornaghi is an academic researcher from Sapienza University of Rome. The author has contributed to research in topics: Acetylation & Histone H4. The author has an hindex of 8, co-authored 10 publications receiving 902 citations.
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Journal ArticleDOI
The structural basis for the recognition of acetylated histone H4 by the bromodomain of histone acetyltransferase Gcn5p
David J. Owen,Prisca Ornaghi,Ji-Chun Yang,Nicholas Lowe,Philip R. Evans,Paola Ballario,David Neuhaus,Patrizia Filetici,Andrew Travers +8 more
TL;DR: The findings suggest that the Gcn5p bromodomain may discriminate between different acetylated lysine residues depending on the context in which they are displayed.
Journal ArticleDOI
Small-molecule inhibitors of histone acetyltransferase activity: identification and biological properties.
Antonello Mai,Dante Rotili,Domenico Tarantino,Prisca Ornaghi,Federica Tosi,Caterina Vicidomini,Gianluca Sbardella,Angela Nebbioso,Marco Miceli,Lucia Altucci,Patrizia Filetici +10 more
TL;DR: Starting from a yeast phenotypic screening performed on 21 compounds, the identification of two small molecules able to significantly reduce the S. cerevisiae cell growth, thus miming the effect of GCN5 deletion mutant is described.
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The bromodomain of Gcn5p interacts in vitro with specific residues in the N terminus of histone H4
TL;DR: A glutathione S-transferase pull down assay is used to show that Gcn5p binds the amino-terminal tails of histones H3 and H4, but not H2A and H2B, and suggests a new structural role for the highly evolutionary conserved bromodomain.
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Gcn5p Plays an Important Role in Centromere Kinetochore Function in Budding Yeast
Stefano Vernarecci,Prisca Ornaghi,AnaCristina Bâgu,Enrico Cundari,Paola Ballario,Patrizia Filetici +5 more
TL;DR: It is reported that the histone acetyltransferase Gcn5p is involved in cell cycle progression, whereas its absence induces several mitotic defects, including inefficient nuclear division, chromosome loss, delayed G2 progression, and spindle elongation.
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A novel Gcn5p inhibitor represses cell growth, gene transcription and histone acetylation in budding yeast
TL;DR: The identification of MC1626 as a novel cell-permeable Gcn5p inhibitor suggests that it may be a very useful starting tool for the further development of new molecules to be applied to expression profiling of genes regulated by histone H3 acetylation.