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Benleulmi MS, Matysiak J, Robert X, Miskey C, Mauro E, Lapaillerie D, Lesbats P, Chaignepain S, Henriquez DR, Calmels C, Oladosu O, Thierry E, Leon O, Lavigne M, Andreola ML, Delelis O, Ivics Z, Ruff M, Gouet P, Parissi V. Modulation of the functional association between the HIV-1 intasome and the nucleosome by histone amino-terminal tails. Retrovirology 2017; 14:54. [PMID: 29179726 PMCID: PMC5704366 DOI: 10.1186/s12977-017-0378-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/20/2017] [Indexed: 01/28/2023] Open
Abstract
Background Stable insertion of the retroviral DNA genome into host chromatin requires the functional association between the intasome (integrase·viral DNA complex) and the nucleosome. The data from the literature suggest that direct protein–protein contacts between integrase and histones may be involved in anchoring the intasome to the nucleosome. Since histone tails are candidates for interactions with the incoming intasomes we have investigated whether they could participate in modulating the nucleosomal integration process. Results We show here that histone tails are required for an optimal association between HIV-1 integrase (IN) and the nucleosome for efficient integration. We also demonstrate direct interactions between IN and the amino-terminal tail of human histone H4 in vitro. Structure/function studies enabled us to identify amino acids in the carboxy-terminal domain of IN that are important for this interaction. Analysis of the nucleosome-binding properties of catalytically active mutated INs confirmed that their ability to engage the nucleosome for integration in vitro was affected. Pseudovirus particles bearing mutations that affect the IN/H4 association also showed impaired replication capacity due to altered integration and re-targeting of their insertion sites toward dynamic regions of the chromatin with lower nucleosome occupancy. Conclusions Collectively, our data support a functional association between HIV-1 IN and histone tails that promotes anchoring of the intasome to nucleosomes and optimal integration into chromatin. Electronic supplementary material The online version of this article (10.1186/s12977-017-0378-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mohamed S Benleulmi
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France
| | - Julien Matysiak
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France
| | - Xavier Robert
- MMSB-Institute of the Biology and Chemistry of Proteins, UMR 5086 CNRS-Lyon 1 University, Lyon, France
| | - Csaba Miskey
- Division of Medical Biotechnology, Paul Ehrlich Institute, Langen, Germany
| | - Eric Mauro
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France
| | - Delphine Lapaillerie
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Paul Lesbats
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France
| | - Stéphane Chaignepain
- UMR CNRS 5248 CBMN (Chimie Biologie des Membranes et Nanoobjets), Université de Bordeaux, 33076, Bordeaux, France
| | - Daniel R Henriquez
- Virology Program, ICBM, Faculty of Medicine, University of Chile, Santiago of Chile, Chile
| | - Christina Calmels
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Oyindamola Oladosu
- Département de Biologie Structurale Intégrative, UDS, U596 INSERM, UMR7104 CNRS, IGBMC (Institut de Génétique et de Biologie Moléculaire et Cellulaire), Illkirch, France
| | | | - Oscar Leon
- Virology Program, ICBM, Faculty of Medicine, University of Chile, Santiago of Chile, Chile
| | - Marc Lavigne
- Dpt de Virologie, UMR 3569, CNRS, Institut Pasteur, Paris, France.,Institut Cochin-Inserm U1016-CNRS UMR8104-Université Paris Descartes, Paris, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Marie-Line Andreola
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France.,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Olivier Delelis
- LBPA, UMR8113, CNRS, ENS-Cachan, 94235, Cachan, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Zoltán Ivics
- Division of Medical Biotechnology, Paul Ehrlich Institute, Langen, Germany
| | - Marc Ruff
- Département de Biologie Structurale Intégrative, UDS, U596 INSERM, UMR7104 CNRS, IGBMC (Institut de Génétique et de Biologie Moléculaire et Cellulaire), Illkirch, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Patrice Gouet
- MMSB-Institute of the Biology and Chemistry of Proteins, UMR 5086 CNRS-Lyon 1 University, Lyon, France.,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France
| | - Vincent Parissi
- Fundamental Microbiology and Pathogenicity Laboratory, UMR 5234 CNRS-University of Bordeaux, SFR TransBioMed, 146 rue Léo Saignat, Bordeaux Cedex, France. .,International Associated Laboratory (LIA) of Microbiology and Immunology, CNRS, University de Bordeaux/Heinrich Pette Institute-Leibniz Institute for Experimental Virology, Bordeaux, France. .,Viral DNA Integration and Chromatin Dynamics Network (DyNAVir), Bordeaux, France.
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Maroun RG, Gayet S, Benleulmi MS, Porumb H, Zargarian L, Merad H, Leh H, Mouscadet JF, Troalen F, Fermandjian S. Peptide inhibitors of HIV-1 integrase dissociate the enzyme oligomers. Biochemistry 2001; 40:13840-8. [PMID: 11705373 DOI: 10.1021/bi011328n] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Integration of HIV-1 genome into host cell chromosome is mediated by viral integrase (IN). The IN catalytic core (CC, IN(50-212)) dimerizes through mutual interactions of its alpha1 and alpha5 helices. Peptides INH1 and INH5 reproducing these helix sequences strongly inhibited IN. For instance, an IC(50) of 80 nM was determined for INH5 in integration assays using wild-type IN (wtIN). In size exclusion chromatography, INH1 and INH5 perturbed the association-dissociation equilibrium of both dmIN (IN(1-288)/F185K/C280S) and CC, leading to monomers as surviving species, while in circular dichroism, binding of peptides to dmIN altered the protein conformation. Thus, enzyme deactivation, subunit dissociation, and protein unfolding are events which parallel one another. The target of INH5 in the enzyme was then identified. In fluorescence spectroscopy, C(0.5) values of 168 and 44 nM were determined for the binding affinity of INH5 to IN and CC, respectively, at 115 nM subunit concentration, while interaction of INH5 with INH1 was found stronger than interaction of INH5 with itself (23 times larger in term of dissociation constants). These results strongly suggested that the alpha1 helix is the privileged target of INH5. The latter could serve as a lead for the development of new chemotherapeutic agents against HIV-1.
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Affiliation(s)
- R G Maroun
- Département de Biologie et Pharmacologie Structurales, Laboratoire de Physicochimie et de Pharmacologie des Macromolécules Biologiques, UMR 8532 CNRS, Institut Gustave Roussy, 94805 Villejuif, France
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