Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

Alternative label

• Pantano, S; Marcello, A; Ferrari, A; Gaudiosi, D; Sabo, A; Pellegrini, V; Beltram, F; Giacca, M; Carloni, P (2006)
  Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations
  
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Pantano, S; Marcello, A; Ferrari, A; Gaudiosi, D; Sabo, A; Pellegrini, V; Beltram, F; Giacca, M; Carloni, P (literal)

Pagina inizio

• 1062 (literal)

Pagina fine

• 1073 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 62 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Int Ctr Genet Engn & Biotechnol, Mol Virol Lab, I-34012 Trieste, Italy; ISAS, Trieste, Italy; INFM, DEMOCRITOS Modeling Ctr Res Atomist Simulat, Trieste, Italy; Natl Univ San Luis, CONICET, IMASL, San Luis, Argentina; INFM, CNR, NEST, Pisa, Italy; Scuola Normale Super Pisa, Pisa, Italy; Int Ctr Genet Engn & Biotechnol, Mol Med Lab, I-34012 Trieste, Italy; ETH Honggerberg, Inst F Biochem, CH-8093 Zurich, Switzerland (literal)

Titolo

• Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations (literal)

Abstract

• Structural and functional studies indicate that, through its bromodomain, the cellular acetyltransferase P/CAF binds the acetylated Tat protein of human immunodeficiency virus type 1 (HIV-1) and promotes transcriptional activation of the integrated provirus. Based on the NMR structure of P/CAF complexed with an acetylated Tat peptide, here we use molecular dynamics simulations to construct a model describing the interaction between full length Tat and the P/CAF bromodomain. Our calculations show that the protein-protein interface involves hydrophobic interactions between the P/CAF ZA loop and the Tat core domain. In particular, tyrosines 760 and 761 of P/CAF, two residues that are highly conserved in most known bromodomains, play an essential role for the binding. Fluorescence resonance energy transfer (FRET) experiments performed in this work demonstrate that P/CAF proteins in which these tyrosines are mutated into hydrophilic residues neither bind to Tat inside the cells nor mediate Tat transactivation. The combination of theoretical and in vivo studies provides new insights into the specificity of bromodomain recognition. (literal)

Prodotto di

• Modelizzazione molecolare di sistemi biologici (MD.P06.026.001) (Modulo)
• Nanostrutture a semiconduttore per la nanoelettronica e la spin-fotonica (MD.P06.021.001) (Modulo)

Autore CNR

• ALDO FERRARI (Unità di personale esterno)
• VITTORIO PELLEGRINI (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations" (Insieme di parole chiave)

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Autore CNR di

• VITTORIO PELLEGRINI (Unità di personale interno)
• ALDO FERRARI (Unità di personale esterno)

Prodotto

• Nanostrutture a semiconduttore per la nanoelettronica e la spin-fotonica (MD.P06.021.001) (Modulo)
• Modelizzazione molecolare di sistemi biologici (MD.P06.026.001) (Modulo)

Insieme di parole chiave di

• Parole chiave di "Insights on HIV-1 Tat : P/CAF bromodomain molecular recognition from in vivo experiments and molecular dynamics simulations" (Insieme di parole chiave)