1
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Agez M, Mandon ED, Iwema T, Gianotti R, Limani F, Herter S, Mössner E, Kusznir EA, Huber S, Lauer M, Ringler P, Ferrara C, Klein C, Jawhari A. Biochemical and biophysical characterization of purified native CD20 alone and in complex with rituximab and obinutuzumab. Sci Rep 2019; 9:13675. [PMID: 31548565 PMCID: PMC6757138 DOI: 10.1038/s41598-019-50031-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 08/24/2019] [Indexed: 11/17/2022] Open
Abstract
CD20 is a B-lymphocyte specific integral membrane protein, an activated-glycosylated phosphoprotein expressed on the surface of B-cells and a clinically validated target of monoclonal antibodies such as rituximab, ocrelizumab, ofatumumab and obinutuzumab in the treatment of all B cell lymphomas and leukemias as well as autoimmune diseases. Here, we report the extraction and purification of native CD20 from SUDHL4 and RAMOS cell lines. To improve the protein yield, we applied a calixarene-based detergent approach to solubilize, stabilize and purify native CD20 from HEK293 cells. Size Exclusion Chromatography (SEC) and Analytical Ultracentrifugation show that purified CD20 was non-aggregated and that CD20 oligomerization is concentration dependent. Negative stain electron microscopy and atomic force microscopy revealed homogenous populations of CD20. However, no defined structure could be observed. Interestingly, micellar solubilized and purified CD20 particles adopt uniformly confined nanodroplets which do not fuse and aggregate. Finally, purified CD20 could bind to rituximab and obinutuzumab as demonstrated by SEC, and Surface Plasmon Resonance (SPR). Specificity of binding was confirmed using CD20 antibody mutants to human B-cell lymphoma cells. The strategy described in this work will help investigate CD20 binding with newly developed antibodies and eventually help to optimize them. This approach may also be applicable to other challenging membrane proteins.
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Affiliation(s)
- Morgane Agez
- CALIXAR, 60 avenue Rockefeller 69008, Lyon, France
| | | | - Thomas Iwema
- CALIXAR, 60 avenue Rockefeller 69008, Lyon, France
| | - Reto Gianotti
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Florian Limani
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Sylvia Herter
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Ekkehard Mössner
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Eric A Kusznir
- Roche Pharma Research and Early Development, Lead Discovery, Roche Innovation Center Basel, Basel, Switzerland
| | - Sylwia Huber
- Roche Pharma Research and Early Development, Lead Discovery, Roche Innovation Center Basel, Basel, Switzerland
| | - Matthias Lauer
- Roche Pharma Research and Early Development, Lead Discovery, Roche Innovation Center Basel, Basel, Switzerland
| | - Philippe Ringler
- Center for Cellular Imaging and NanoAnalytics (C-CINA), Biozentrum, University of Basel, Basel, Switzerland
| | - Claudia Ferrara
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Christian Klein
- Roche Pharma Research & Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
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2
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Bakail M, Gaubert A, Andreani J, Moal G, Pinna G, Boyarchuk E, Gaillard MC, Courbeyrette R, Mann C, Thuret JY, Guichard B, Murciano B, Richet N, Poitou A, Frederic C, Le Du MH, Agez M, Roelants C, Gurard-Levin ZA, Almouzni G, Cherradi N, Guerois R, Ochsenbein F. Design on a Rational Basis of High-Affinity Peptides Inhibiting the Histone Chaperone ASF1. Cell Chem Biol 2019; 26:1573-1585.e10. [PMID: 31543461 DOI: 10.1016/j.chembiol.2019.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 06/12/2019] [Accepted: 09/03/2019] [Indexed: 12/16/2022]
Abstract
Anti-silencing function 1 (ASF1) is a conserved H3-H4 histone chaperone involved in histone dynamics during replication, transcription, and DNA repair. Overexpressed in proliferating tissues including many tumors, ASF1 has emerged as a promising therapeutic target. Here, we combine structural, computational, and biochemical approaches to design peptides that inhibit the ASF1-histone interaction. Starting from the structure of the human ASF1-histone complex, we developed a rational design strategy combining epitope tethering and optimization of interface contacts to identify a potent peptide inhibitor with a dissociation constant of 3 nM. When introduced into cultured cells, the inhibitors impair cell proliferation, perturb cell-cycle progression, and reduce cell migration and invasion in a manner commensurate with their affinity for ASF1. Finally, we find that direct injection of the most potent ASF1 peptide inhibitor in mouse allografts reduces tumor growth. Our results open new avenues to use ASF1 inhibitors as promising leads for cancer therapy.
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Affiliation(s)
- May Bakail
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Albane Gaubert
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Jessica Andreani
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Gwenaëlle Moal
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Guillaume Pinna
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Ekaterina Boyarchuk
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, CNRS, UMR3664, Equipe Labellisée Ligue Contre le Cancer, 75005 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, 75005 Paris, France
| | - Marie-Cécile Gaillard
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Regis Courbeyrette
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Carl Mann
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Jean-Yves Thuret
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Bérengère Guichard
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Brice Murciano
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Nicolas Richet
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Adeline Poitou
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Claire Frederic
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Marie-Hélène Le Du
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France
| | - Morgane Agez
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France
| | - Caroline Roelants
- Institut National de la Santé et de la Recherche Médicale, Unité 1036, 38000 Grenoble, France; Commissariat à l'Energie Atomique, Institut de Recherche Interdisciplinaire de Grenoble, Biologie du Cancer et de l'Infection, 38000 Grenoble, France; Université Grenoble Alpes, Unité Mixte de Recherche-S1036, 38000 Grenoble, France
| | - Zachary A Gurard-Levin
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, CNRS, UMR3664, Equipe Labellisée Ligue Contre le Cancer, 75005 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, 75005 Paris, France
| | - Geneviève Almouzni
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, CNRS, UMR3664, Equipe Labellisée Ligue Contre le Cancer, 75005 Paris, France; Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, 75005 Paris, France
| | - Nadia Cherradi
- Institut National de la Santé et de la Recherche Médicale, Unité 1036, 38000 Grenoble, France; Commissariat à l'Energie Atomique, Institut de Recherche Interdisciplinaire de Grenoble, Biologie du Cancer et de l'Infection, 38000 Grenoble, France; Université Grenoble Alpes, Unité Mixte de Recherche-S1036, 38000 Grenoble, France
| | - Raphael Guerois
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France.
| | - Françoise Ochsenbein
- Institute Joliot, Commissariat à l'énergie Atomique (CEA), Direction de la Recherche Fondamentale (DRF), 91191 Gif-sur-Yvette, France; Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198 Gif-sur-Yvette Cedex, France.
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3
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Agez M, Schultz P, Medina I, Baker DJ, Burnham MP, Cardarelli RA, Conway LC, Garnier K, Geschwindner S, Gunnarsson A, McCall EJ, Frechard A, Audebert S, Deeb TZ, Moss SJ, Brandon NJ, Wang Q, Dekker N, Jawhari A. Molecular architecture of potassium chloride co-transporter KCC2. Sci Rep 2017; 7:16452. [PMID: 29184062 PMCID: PMC5705597 DOI: 10.1038/s41598-017-15739-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 10/27/2017] [Indexed: 01/15/2023] Open
Abstract
KCC2 is a neuron specific K+-Cl− co-transporter that controls neuronal chloride homeostasis, and is critically involved in many neurological diseases including brain trauma, epilepsies, autism and schizophrenia. Despite significant accumulating data on the biology and electrophysiological properties of KCC2, structure-function relationships remain poorly understood. Here we used calixarene detergent to solubilize and purify wild-type non-aggregated and homogenous KCC2. Specific binding of inhibitor compound VU0463271 was demonstrated using surface plasmon resonance (SPR). Mass spectrometry revealed glycosylations and phosphorylations as expected from functional KCC2. We show by electron microscopy (EM) that KCC2 exists as monomers and dimers in solution. Monomers are organized into “head” and “core” domains connected by a flexible “linker”. Dimers are asymmetrical and display a bent “S-shape” architecture made of four distinct domains and a flexible dimerization interface. Chemical crosslinking in reducing conditions shows that disulfide bridges are involved in KCC2 dimerization. Moreover, we show that adding a tag to the C-terminus is detrimental to KCC2 function. We postulate that the conserved KCC2 C-ter may be at the interface of dimerization. Taken together, our findings highlight the flexible multi-domain structure of KCC2 with variable anchoring points at the dimerization interface and an important C-ter extremity providing the first in-depth functional architecture of KCC2.
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Affiliation(s)
- Morgane Agez
- CALIXAR, 60 avenue Rockefeller, 69008, Lyon, France
| | - Patrick Schultz
- Department of Integrated Structural Biology, IGBMC (Institut de Génétique et de Biologie Moléculaire et Cellulaire) INSERM, U964; CNRS/Strasbourg University, UMR7104 1, rue Laurent Fries, BP10142, 67404, Illkirch, France
| | | | - David J Baker
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Matthew P Burnham
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Alderley Park, UK
| | - Ross A Cardarelli
- AstraZeneca Tufts Laboratory for Basic and Translational Neuroscience, Boston, Massachusetts, 02111, USA
| | - Leslie C Conway
- AstraZeneca Tufts Laboratory for Basic and Translational Neuroscience, Boston, Massachusetts, 02111, USA
| | | | | | - Anders Gunnarsson
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - Eileen J McCall
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Cambridge, UK
| | - Alexandre Frechard
- Department of Integrated Structural Biology, IGBMC (Institut de Génétique et de Biologie Moléculaire et Cellulaire) INSERM, U964; CNRS/Strasbourg University, UMR7104 1, rue Laurent Fries, BP10142, 67404, Illkirch, France
| | - Stéphane Audebert
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille Protéomique, Marseille, France
| | - Tarek Z Deeb
- AstraZeneca Tufts Laboratory for Basic and Translational Neuroscience, Boston, Massachusetts, 02111, USA
| | - Stephen J Moss
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, 02111, USA.,Department of Neuroscience, Physiology and Pharmacology, University College, London, WC1E, 6BT, UK
| | - Nicholas J Brandon
- AstraZeneca Tufts Laboratory for Basic and Translational Neuroscience, Boston, Massachusetts, 02111, USA.,Neuroscience, IMED Biotech Unit, AstraZeneca, Boston, MA, USA
| | - Qi Wang
- AstraZeneca Tufts Laboratory for Basic and Translational Neuroscience, Boston, Massachusetts, 02111, USA.,Neuroscience, IMED Biotech Unit, AstraZeneca, Boston, MA, USA
| | - Niek Dekker
- Discovery Sciences, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden.
| | - Anass Jawhari
- CALIXAR, 60 avenue Rockefeller, 69008, Lyon, France.
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4
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Friedel P, Ludwig A, Pellegrino C, Agez M, Jawhari A, Rivera C, Medina I. A Novel View on the Role of Intracellular Tails in Surface Delivery of the Potassium-Chloride Cotransporter KCC2. eNeuro 2017; 4:ENEURO.0055-17.2017. [PMID: 28785725 PMCID: PMC5520751 DOI: 10.1523/eneuro.0055-17.2017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 06/20/2017] [Accepted: 07/04/2017] [Indexed: 01/06/2023] Open
Abstract
A plethora of neurological disorders are associated with alterations in the expression and localization of potassium-chloride cotransporter type 2 (KCC2), making KCC2 a critical player in neuronal function and an attractive target for therapeutic treatment. The activity of KCC2 is determined primarily by the rates of its surface insertion and internalization. Currently the domains of KCC2 dictating its trafficking and endocytosis are unknown. Here, using live-cell immunolabeling and biotinylation of KCC2 proteins expressed in murine neuroblastoma N2a cells, human embryonic kidney 293 cells, or primary cultures of rat hippocampal neurons, we identified a novel role for the intracellular N and C termini in differentially regulating KCC2 surface expression. We report that the N terminus is required for KCC2 insertion into the plasma membrane, whereas the C terminus is critical for the membrane stability of KCC2. Our results provide novel insights into the structure-function role of specific KCC2 domains and open perspectives in exploring structural organization of this protein.
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Affiliation(s)
- Perrine Friedel
- INMED, Aix-Marseille University, INSERM, Marseille 13273, France
| | - Anastasia Ludwig
- Neuroscience Center, University of Helsinki, Helsinki 00100, Finland
| | | | | | | | - Claudio Rivera
- INMED, Aix-Marseille University, INSERM, Marseille 13273, France
- Neuroscience Center, University of Helsinki, Helsinki 00100, Finland
| | - Igor Medina
- INMED, Aix-Marseille University, INSERM, Marseille 13273, France
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5
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Desuzinges Mandon E, Agez M, Pellegrin R, Igonet S, Jawhari A. Novel systematic detergent screening method for membrane proteins solubilization. Anal Biochem 2016; 517:40-49. [PMID: 27847172 DOI: 10.1016/j.ab.2016.11.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 10/20/2016] [Accepted: 11/10/2016] [Indexed: 01/09/2023]
Abstract
Membrane proteins play crucial role in many cellular processes including cell adhesion, cell-cell communication, signal transduction and transport. To better understand the molecular basis of such central biological machines and in order to specifically study their biological and medical role, it is necessary to extract them from their membrane environment. To do so, it is challenging to find the best solubilization condition. Here we describe, a systematic screening method called BMSS (Biotinylated Membranes Solubilization & Separation) that allow screening 96 conditions at once. Streptavidine magnetic beads are used to separate solubilized proteins from remaining biotinylated membranes after solubilization. Relative quantification of dot blots help to select the best conditions to be confirmed by classical ultra-centrifugation and western blot. Classical detergents with different physical-chemical characteristics, novel calixarene based detergents and combination of both, were used for solubilization trials to obtain broad spectrum of conditions. Here, we show the application of BMSS to discover solubilization conditions of a GPCR target (MP-A) and a transporter (MP-B). The selected conditions allowed the solubilization and purification of non-aggregated and homogenous native membrane proteins A and B. Taken together, BMSS represent a rapid, reproducible and high throughput assessment of solubilization toward biochemical/functional characterization, biophysical screening and structural investigations of membrane proteins of high biological and medical relevance.
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Affiliation(s)
| | - Morgane Agez
- CALIXAR, 60 Avenue Rockefeller, 69008 Lyon, France
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6
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Thébault S, Agez M, Chi X, Stojko J, Cura V, Telerman SB, Maillet L, Gautier F, Billas-Massobrio I, Birck C, Troffer-Charlier N, Karafin T, Honoré J, Senff-Ribeiro A, Montessuit S, Johnson CM, Juin P, Cianférani S, Martinou JC, Andrews DW, Amson R, Telerman A, Cavarelli J. TCTP contains a BH3-like domain, which instead of inhibiting, activates Bcl-xL. Sci Rep 2016; 6:19725. [PMID: 26813996 PMCID: PMC4728560 DOI: 10.1038/srep19725] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/17/2015] [Indexed: 01/28/2023] Open
Abstract
Translationally Controlled Tumor Protein (TCTP) is anti-apoptotic, key in development and cancer, however without the typical Bcl2 family members’ structure. Here we report that TCTP contains a BH3-like domain and forms heterocomplexes with Bcl-xL. The crystal structure of a Bcl-xL deletion variant-TCTP11–31 complex reveals that TCTP refolds in a helical conformation upon binding the BH3-groove of Bcl-xL, although lacking the h1-subregion interaction. Experiments using in vitro-vivo reconstituted systems and TCTP+/− mice indicate that TCTP activates the anti-apoptotic function of Bcl-xL, in contrast to all other BH3-proteins. Replacing the non-conserved h1 of TCTP by that of Bax drastically increases the affinity of this hybrid for Bcl-xL, modifying its biological properties. This work reveals a novel class of BH3-proteins potentiating the anti-apoptotic function of Bcl-xL.
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Affiliation(s)
- Stéphanie Thébault
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France.,CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France
| | - Morgane Agez
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Xiaoke Chi
- Sunnybrook Research Institute and Departments of Biochemistry and Medical Biophysics, University of Toronto, 2075 Bayview Ave., Toronto, Ontario, M4N 3M5, Canada.,Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W. Hamilton, Ontario, L8N 3Z5, Canada
| | - Johann Stojko
- Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), IPHC-DSA, Université de Strasbourg, CNRS, UMR7178, 25 rue Becquerel, 67087 Strasbourg, France
| | - Vincent Cura
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France
| | - Stéphanie B Telerman
- King's College London Centre for Stem Cells and Regenerative Medicine, Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK.,MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK
| | - Laurent Maillet
- Center for Cancer Research Nantes-Angers, UMR 892 Inserm - 6299 CNRS/Université de Nantes, IRS-UN, 8 Quai Moncousu - BP 70721, 44007 Nantes Cedex 1
| | - Fabien Gautier
- Center for Cancer Research Nantes-Angers, UMR 892 Inserm - 6299 CNRS/Université de Nantes, IRS-UN, 8 Quai Moncousu - BP 70721, 44007 Nantes Cedex 1.,Institut de Cancérologie de l'Ouest, Centre René Gauducheau Bd Jacques Monod, 44805 Saint Herblain-Nantes cedex
| | - Isabelle Billas-Massobrio
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France
| | - Catherine Birck
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France
| | - Nathalie Troffer-Charlier
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France
| | - Teele Karafin
- CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Joane Honoré
- Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Andrea Senff-Ribeiro
- CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Sylvie Montessuit
- Department of Cell Biology, University of Geneva, 30, quai Ansermet, 1211 Geneva 4, Switzerland
| | - Christopher M Johnson
- MRC Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK
| | - Philippe Juin
- Center for Cancer Research Nantes-Angers, UMR 892 Inserm - 6299 CNRS/Université de Nantes, IRS-UN, 8 Quai Moncousu - BP 70721, 44007 Nantes Cedex 1.,Institut de Cancérologie de l'Ouest, Centre René Gauducheau Bd Jacques Monod, 44805 Saint Herblain-Nantes cedex
| | - Sarah Cianférani
- Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), IPHC-DSA, Université de Strasbourg, CNRS, UMR7178, 25 rue Becquerel, 67087 Strasbourg, France
| | - Jean-Claude Martinou
- Department of Cell Biology, University of Geneva, 30, quai Ansermet, 1211 Geneva 4, Switzerland
| | - David W Andrews
- Sunnybrook Research Institute and Departments of Biochemistry and Medical Biophysics, University of Toronto, 2075 Bayview Ave., Toronto, Ontario, M4N 3M5, Canada.,Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W. Hamilton, Ontario, L8N 3Z5, Canada
| | - Robert Amson
- CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Adam Telerman
- CNRS-UMR 8113, LBPA, École Normale Supérieure, 61 avenue du Président Wilson, 94235 Cachan, France.,Institut Gustave Roussy, Unité Inserm U981, Bâtiment B2M, 114 rue Édouard-Vaillant, 94805 Villejuif, France
| | - Jean Cavarelli
- Département de Biologie Structurale Intégrative, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS UMR 7104, INSERM U964, 1 rue Laurent Fries, BP 10142, F-67404 Illkirch, France
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Tyagi S, Vandelinder V, Banterle N, Fuertes Vives G, Agez M, Milles S, Lemke EA. Long-Term Single-Molecule TIRF Observation of Biomolecules without Immobilization. Biophys J 2013. [DOI: 10.1016/j.bpj.2012.11.980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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8
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VanDelinder V, Banterle N, Agez M, Tyagi S, Fuertes G, Milles S, Lemke EA. Long Term Single Molecule TIRF Observation of Biomolecules without Immobilization. Biophys J 2012. [DOI: 10.1016/j.bpj.2011.11.966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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9
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Mousseau G, Raffy Q, Thomas OP, Agez M, Thai R, Renault JP, Pin S, Ochsenbein F, Cintrat JC, Rousseau B. Footprinting of protein interactions by tritium labeling. Biochemistry 2010; 49:4297-9. [PMID: 20415454 DOI: 10.1021/bi100031a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new footprinting method for mapping protein interactions has been developed, using tritium as a radioactive label. As residues involved in an interaction are less labeled when the complex is formed, they can be identified via comparison of the tritium incorporation of each residue of the bound protein with that of the unbound one. Application of this footprinting method to the complex formed by the histone H3 fragment H3(122-135) and the protein hAsf1A(1-156) afforded data in good agreement with NMR results.
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Agez M, Chen J, Guerois R, van Heijenoort C, Thuret JY, Mann C, Ochsenbein F. Structure of the histone chaperone ASF1 bound to the histone H3 C-terminal helix and functional insights. Structure 2007; 15:191-9. [PMID: 17292837 DOI: 10.1016/j.str.2007.01.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2006] [Revised: 12/29/2006] [Accepted: 01/07/2007] [Indexed: 12/01/2022]
Abstract
Asf1 is a histone chaperone that favors histone H3/H4 assembly and disassembly. We solved the structure of the conserved domain of human ASF1A in complex with the C-terminal helix of histone H3 using nuclear magnetic resonance spectroscopy. This structure is fully compatible with an association of ASF1 with the heterodimeric form of histones H3/H4. In our model, ASF1 substitutes for the second H3/H4 heterodimer that is normally found in heterotetrameric H3/H4 complexes. This result constitutes an essential step in the fundamental understanding of the mechanisms of nucleosome assembly by histone chaperones. Point mutations that perturb the Asf1/histone interface were designed from the structure. The decreased binding affinity of the Asf1-H3/H4 complex correlates with decreased levels of H3-K56 acetylation and phenotypic defects in vivo.
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Affiliation(s)
- Morgane Agez
- Institut de Biologie et de Technologie de Saclay, Commissariat à l'Energie Atomique/Saclay, F-91191 Gif-sur-Yvette Cedex, France
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11
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Mousson F, Lautrette A, Thuret JY, Agez M, Courbeyrette R, Amigues B, Becker E, Neumann JM, Guerois R, Mann C, Ochsenbein F. Structural basis for the interaction of Asf1 with histone H3 and its functional implications. Proc Natl Acad Sci U S A 2005; 102:5975-80. [PMID: 15840725 PMCID: PMC1087920 DOI: 10.1073/pnas.0500149102] [Citation(s) in RCA: 108] [Impact Index Per Article: 5.7] [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: 01/17/2023] Open
Abstract
Asf1 is a conserved histone chaperone implicated in nucleosome assembly, transcriptional silencing, and the cellular response to DNA damage. We solved the NMR solution structure of the N-terminal functional domain of the human Asf1a isoform, and we identified by NMR chemical shift mapping a surface of Asf1a that binds the C-terminal helix of histone H3. This binding surface forms a highly conserved hydrophobic groove surrounded by charged residues. Mutations within this binding site decreased the affinity of Asf1a for the histone H3/H4 complex in vitro, and the same mutations in the homologous yeast protein led to transcriptional silencing defects, DNA damage sensitivity, and thermosensitive growth. We have thus obtained direct experimental evidence of the mode of binding between a histone and one of its chaperones and genetic data suggesting that this interaction is important in both the DNA damage response and transcriptional silencing.
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Affiliation(s)
- Florence Mousson
- Service de Biophysique des Fonctions Membranaires and Service de Biochimie et de Génétique Moléculaire, Département de Biologie Joliot-Curie, Commissariat à l'Energie Atomique (CEA/Saclay), F-91191 Gif-sur-Yvette, France
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