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García-Nieto A, Patel A, Li Y, Oldenkamp R, Feletto L, Graham JJ, Willems L, Muir KW, Panne D, Rowland BD. Structural basis of centromeric cohesion protection. Nat Struct Mol Biol 2023:10.1038/s41594-023-00968-y. [PMID: 37081319 DOI: 10.1038/s41594-023-00968-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 03/15/2023] [Indexed: 04/22/2023]
Abstract
In the early stages of mitosis, cohesin is released from chromosome arms but not from centromeres. The protection of centromeric cohesin by SGO1 maintains the sister chromatid cohesion that resists the pulling forces of microtubules until all chromosomes are attached in a bipolar manner to the mitotic spindle. Here we present the X-ray crystal structure of a segment of human SGO1 bound to a conserved surface of the cohesin complex. SGO1 binds to a composite interface formed by the SA2 and SCC1RAD21 subunits of cohesin. SGO1 shares this binding interface with CTCF, indicating that these distinct chromosomal regulators control cohesin through a universal principle. This interaction is essential for the localization of SGO1 to centromeres and protects centromeric cohesin against WAPL-mediated cohesin release. SGO1-cohesin binding is maintained until the formation of microtubule-kinetochore attachments and is required for faithful chromosome segregation and the maintenance of a stable karyotype.
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Affiliation(s)
- Alberto García-Nieto
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Amrita Patel
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Yan Li
- Department of Fundamental Microbiology, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Roel Oldenkamp
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Leonardo Feletto
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Joshua J Graham
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Laureen Willems
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Kyle W Muir
- MRC Laboratory of Molecular Biology, Cambridge, UK
| | - Daniel Panne
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK.
| | - Benjamin D Rowland
- Division of Cell Biology, The Netherlands Cancer Institute, Amsterdam, the Netherlands.
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2
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Ibrahim Z, Wang T, Destaing O, Salvi N, Hoghoughi N, Chabert C, Rusu A, Gao J, Feletto L, Reynoird N, Schalch T, Zhao Y, Blackledge M, Khochbin S, Panne D. Structural insights into p300 regulation and acetylation-dependent genome organisation. Nat Commun 2022; 13:7759. [PMID: 36522330 PMCID: PMC9755262 DOI: 10.1038/s41467-022-35375-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/29/2022] [Indexed: 12/23/2022] Open
Abstract
Histone modifications are deposited by chromatin modifying enzymes and read out by proteins that recognize the modified state. BRD4-NUT is an oncogenic fusion protein of the acetyl lysine reader BRD4 that binds to the acetylase p300 and enables formation of long-range intra- and interchromosomal interactions. We here examine how acetylation reading and writing enable formation of such interactions. We show that NUT contains an acidic transcriptional activation domain that binds to the TAZ2 domain of p300. We use NMR to investigate the structure of the complex and found that the TAZ2 domain has an autoinhibitory role for p300. NUT-TAZ2 interaction or mutations found in cancer that interfere with autoinhibition by TAZ2 allosterically activate p300. p300 activation results in a self-organizing, acetylation-dependent feed-forward reaction that enables long-range interactions by bromodomain multivalent acetyl-lysine binding. We discuss the implications for chromatin organisation, gene regulation and dysregulation in disease.
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Affiliation(s)
- Ziad Ibrahim
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, United States
| | - Tao Wang
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Olivier Destaing
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Nicola Salvi
- Institut de Biologie Structurale, CNRS, CEA, UGA, Grenoble, France
| | - Naghmeh Hoghoughi
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Clovis Chabert
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Alexandra Rusu
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Jinjun Gao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL, 60637, USA
| | - Leonardo Feletto
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Nicolas Reynoird
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Thomas Schalch
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Yingming Zhao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL, 60637, USA
| | | | - Saadi Khochbin
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Daniel Panne
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK.
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3
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Zhang Y, Brown K, Yu Y, Ibrahim Z, Zandian M, Xuan H, Ingersoll S, Lee T, Ebmeier CC, Liu J, Panne D, Shi X, Ren X, Kutateladze TG. Nuclear condensates of p300 formed though the structured catalytic core can act as a storage pool of p300 with reduced HAT activity. Nat Commun 2021; 12:4618. [PMID: 34326347 PMCID: PMC8322156 DOI: 10.1038/s41467-021-24950-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [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: 03/08/2021] [Accepted: 07/12/2021] [Indexed: 12/03/2022] Open
Abstract
The transcriptional co-activator and acetyltransferase p300 is required for fundamental cellular processes, including differentiation and growth. Here, we report that p300 forms phase separated condensates in the cell nucleus. The phase separation ability of p300 is regulated by autoacetylation and relies on its catalytic core components, including the histone acetyltransferase (HAT) domain, the autoinhibition loop, and bromodomain. p300 condensates sequester chromatin components, such as histone H3 tail and DNA, and are amplified through binding of p300 to the nucleosome. The catalytic HAT activity of p300 is decreased due to occlusion of the active site in the phase separated droplets, a large portion of which co-localizes with chromatin regions enriched in H3K27me3. Our findings suggest a model in which p300 condensates can act as a storage pool of the protein with reduced HAT activity, allowing p300 to be compartmentalized and concentrated at poised or repressed chromatin regions. The histone acetyltransferase p300 mostly localizes to active chromatin; however, some repressed genes marked with H3K27me3 are also bound by p300. Here the authors show p300 is capable of phase separation, which relies on its catalytic core, and that p300 catalytic activity is decreased in phase-separated droplets that co-localize with H3K27me3-marked chromatin.
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Affiliation(s)
- Yi Zhang
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Kyle Brown
- Department of Chemistry, University of Colorado, Denver, CO, USA
| | - Yucong Yu
- Center for Epigenetics, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Ziad Ibrahim
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical Biology, University of Leicester, Leicester, UK
| | - Mohamad Zandian
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Hongwen Xuan
- Center for Epigenetics, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Steven Ingersoll
- Department of Chemistry, University of Colorado, Denver, CO, USA
| | - Thomas Lee
- Department of Biochemistry, University of Colorado, Boulder, CO, USA
| | | | - Jiuyang Liu
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Daniel Panne
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical Biology, University of Leicester, Leicester, UK
| | - Xiaobing Shi
- Center for Epigenetics, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Xiaojun Ren
- Department of Chemistry, University of Colorado, Denver, CO, USA
| | - Tatiana G Kutateladze
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA.
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4
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Muir KW, Li Y, Weis F, Panne D. The structure of the cohesin ATPase elucidates the mechanism of SMC-kleisin ring opening. Nat Struct Mol Biol 2020; 27:233-239. [PMID: 32066964 PMCID: PMC7100847 DOI: 10.1038/s41594-020-0379-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 03/15/2019] [Accepted: 01/13/2020] [Indexed: 01/26/2023]
Abstract
Genome regulation requires control of chromosome organization by SMC-kleisin complexes. The cohesin complex contains the Smc1 and Smc3 subunits that associate with the kleisin Scc1 to form a ring-shaped complex that can topologically engage chromatin to regulate chromatin structure. Release from chromatin involves opening of the ring at the Smc3-Scc1 interface in a reaction that is controlled by acetylation and engagement of the Smc ATPase head domains. To understand the underlying molecular mechanisms, we have determined the 3.2-Å resolution cryo-electron microscopy structure of the ATPγS-bound, heterotrimeric cohesin ATPase head module and the 2.1-Å resolution crystal structure of a nucleotide-free Smc1-Scc1 subcomplex from Saccharomyces cerevisiae and Chaetomium thermophilium. We found that ATP-binding and Smc1-Smc3 heterodimerization promote conformational changes within the ATPase that are transmitted to the Smc coiled-coil domains. Remodeling of the coiled-coil domain of Smc3 abrogates the binding surface for Scc1, thus leading to ring opening at the Smc3-Scc1 interface.
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Affiliation(s)
- Kyle W Muir
- European Molecular Biology Laboratory, Grenoble, France.
- MRC Laboratory of Molecular Biology, Cambridge, UK.
| | - Yan Li
- European Molecular Biology Laboratory, Grenoble, France
| | - Felix Weis
- European Molecular Biology Laboratory, Structural and Computational Biology Unit, Heidelberg, Germany
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France.
- Department of Molecular and Cell Biology, Leicester Institute of Structural and Chemical Biology, University of Leicester, Leicester, UK.
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5
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Li Y, Haarhuis JHI, Sedeño Cacciatore Á, Oldenkamp R, van Ruiten MS, Willems L, Teunissen H, Muir KW, de Wit E, Rowland BD, Panne D. The structural basis for cohesin-CTCF-anchored loops. Nature 2020; 578:472-476. [PMID: 31905366 PMCID: PMC7035113 DOI: 10.1038/s41586-019-1910-z] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022]
Abstract
Cohesin catalyses the folding of the genome into loops that are anchored by CTCF1. The molecular mechanism of how cohesin and CTCF structure the 3D genome has remained unclear. Here we show that a segment within the CTCF N terminus interacts with the SA2-SCC1 subunits of human cohesin. We report a crystal structure of SA2-SCC1 in complex with CTCF at a resolution of 2.7 Å, which reveals the molecular basis of the interaction. We demonstrate that this interaction is specifically required for CTCF-anchored loops and contributes to the positioning of cohesin at CTCF binding sites. A similar motif is present in a number of established and newly identified cohesin ligands, including the cohesin release factor WAPL2,3. Our data suggest that CTCF enables the formation of chromatin loops by protecting cohesin against loop release. These results provide fundamental insights into the molecular mechanism that enables the dynamic regulation of chromatin folding by cohesin and CTCF.
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Affiliation(s)
- Yan Li
- European Molecular Biology Laboratory, Grenoble, France
| | - Judith H I Haarhuis
- Division of Gene Regulation, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | | | - Roel Oldenkamp
- Division of Gene Regulation, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Marjon S van Ruiten
- Division of Gene Regulation, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Laureen Willems
- Division of Gene Regulation, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Hans Teunissen
- Division of Gene Regulation, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Kyle W Muir
- European Molecular Biology Laboratory, Grenoble, France.
- MRC Laboratory of Molecular Biology, Cambridge, UK.
| | - Elzo de Wit
- Division of Gene Regulation, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Benjamin D Rowland
- Division of Gene Regulation, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France.
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK.
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6
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Lefranc J, Schulze VK, Hillig RC, Briem H, Prinz F, Mengel A, Heinrich T, Balint J, Rengachari S, Irlbacher H, Stöckigt D, Bömer U, Bader B, Gradl SN, Nising CF, von Nussbaum F, Mumberg D, Panne D, Wengner AM. Discovery of BAY-985, a Highly Selective TBK1/IKKε Inhibitor. J Med Chem 2019; 63:601-612. [DOI: 10.1021/acs.jmedchem.9b01460] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Julien Lefranc
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | | | | | - Hans Briem
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Florian Prinz
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Anne Mengel
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Tobias Heinrich
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Jozsef Balint
- ASCA GmbH (Angewandte Synthesechemie Adlershof), 12489 Berlin, Germany
| | - Srinivasan Rengachari
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, LE1 7RH Leicester, U.K
| | - Horst Irlbacher
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Detlef Stöckigt
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Ulf Bömer
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Benjamin Bader
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | | | | | - Franz von Nussbaum
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Dominik Mumberg
- Pharmaceuticals, Research and Development, Bayer AG, 13353 Berlin, Germany
| | - Daniel Panne
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, LE1 7RH Leicester, U.K
- European Molecular Biology Laboratory, 38042 Grenoble, France
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7
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Shiota H, Barral S, Buchou T, Tan M, Couté Y, Charbonnier G, Reynoird N, Boussouar F, Gérard M, Zhu M, Bargier L, Puthier D, Chuffart F, Bourova-Flin E, Picaud S, Filippakopoulos P, Goudarzi A, Ibrahim Z, Panne D, Rousseaux S, Zhao Y, Khochbin S. Nut Directs p300-Dependent, Genome-Wide H4 Hyperacetylation in Male Germ Cells. Cell Rep 2019; 24:3477-3487.e6. [PMID: 30257209 DOI: 10.1016/j.celrep.2018.08.069] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [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: 04/20/2018] [Revised: 07/19/2018] [Accepted: 08/23/2018] [Indexed: 12/31/2022] Open
Abstract
Nuclear protein in testis (Nut) is a universal oncogenic driver in the highly aggressive NUT midline carcinoma, whose physiological function in male germ cells has been unclear. Here we show that expression of Nut is normally restricted to post-meiotic spermatogenic cells, where its presence triggers p300-dependent genome-wide histone H4 hyperacetylation, which is essential for the completion of histone-to-protamine exchange. Accordingly, the inactivation of Nut induces male sterility with spermatogenesis arrest at the histone-removal stage. Nut uses p300 and/or CBP to enhance acetylation of H4 at both K5 and K8, providing binding sites for the first bromodomain of Brdt, the testis-specific member of the BET family, which subsequently mediates genome-wide histone removal. Altogether, our data reveal the detailed molecular basis of the global histone hyperacetylation wave, which occurs before the final compaction of the male genome.
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Affiliation(s)
- Hitoshi Shiota
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Sophie Barral
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Thierry Buchou
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Minjia Tan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P.R. China
| | - Yohann Couté
- Université Grenoble Alpes, CEA, Inserm U1038, CEA, BIG-BGE, Grenoble 38000, France
| | - Guillaume Charbonnier
- TGML, platform IbiSA, Aix Marseille Université, Inserm U1090, TAGC, Marseille, France
| | - Nicolas Reynoird
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Fayçal Boussouar
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | | | - Mingrui Zhu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, P.R. China
| | - Lisa Bargier
- TGML, platform IbiSA, Aix Marseille Université, Inserm U1090, TAGC, Marseille, France
| | - Denis Puthier
- TGML, platform IbiSA, Aix Marseille Université, Inserm U1090, TAGC, Marseille, France
| | - Florent Chuffart
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Ekaterina Bourova-Flin
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Sarah Picaud
- Structural Genomics Consortium & Ludwig Institute for Cancer Research, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Panagis Filippakopoulos
- Structural Genomics Consortium & Ludwig Institute for Cancer Research, Old Road Campus Research Building, Roosevelt Drive, Oxford OX3 7DQ, UK
| | - Afsaneh Goudarzi
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Ziad Ibrahim
- EMBL Grenoble, BP 181, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Daniel Panne
- EMBL Grenoble, BP 181, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France; Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, Leicester LE1 7RH, UK
| | - Sophie Rousseaux
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France
| | - Yingming Zhao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - Saadi Khochbin
- CNRS UMR 5309, Inserm U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble 38700, France.
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8
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Panne D. Structural insights into signal processing to chromatin. Acta Crystallogr A Found Adv 2019. [DOI: 10.1107/s2053273319094671] [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: 11/10/2022] Open
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9
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Sauer PV, Gu Y, Liu WH, Mattiroli F, Panne D, Luger K, Churchill MEA. Mechanistic insights into histone deposition and nucleosome assembly by the chromatin assembly factor-1. Nucleic Acids Res 2018; 46:9907-9917. [PMID: 30239791 PMCID: PMC6212844 DOI: 10.1093/nar/gky823] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [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: 07/20/2018] [Accepted: 09/15/2018] [Indexed: 02/03/2023] Open
Abstract
Eukaryotic chromatin is a highly dynamic structure with essential roles in virtually all DNA-dependent cellular processes. Nucleosomes are a barrier to DNA access, and during DNA replication, they are disassembled ahead of the replication machinery (the replisome) and reassembled following its passage. The Histone chaperone Chromatin Assembly Factor-1 (CAF-1) interacts with the replisome and deposits H3-H4 directly onto newly synthesized DNA. Therefore, CAF-1 is important for the establishment and propagation of chromatin structure. The molecular mechanism by which CAF-1 mediates H3-H4 deposition has remained unclear. However, recent studies have revealed new insights into the architecture and stoichiometry of the trimeric CAF-1 complex and how it interacts with and deposits H3-H4 onto substrate DNA. The CAF-1 trimer binds to a single H3-H4 dimer, which induces a conformational rearrangement in CAF-1 promoting its interaction with substrate DNA. Two CAF-1•H3-H4 complexes co-associate on nucleosome-free DNA depositing (H3-H4)2 tetramers in the first step of nucleosome assembly. Here, we review the progress made in our understanding of CAF-1 structure, mechanism of action, and how CAF-1 contributes to chromatin dynamics during DNA replication.
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Affiliation(s)
- Paul V Sauer
- European Molecular Biology Laboratory, 38042 Grenoble, France
| | - Yajie Gu
- Department of Biochemistry, University of Colorado at Boulder, Boulder, CO 80309, USA
| | - Wallace H Liu
- Department of Pharmacology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | | | - Daniel Panne
- European Molecular Biology Laboratory, 38042 Grenoble, France,Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Lancaster Road, Leicester LE1 7RH, UK
| | - Karolin Luger
- Department of Biochemistry, University of Colorado at Boulder, Boulder, CO 80309, USA,Howard Hughes Medical Institute, Chevy Chase, MD 20815-6789, USA
| | - Mair EA Churchill
- Department of Pharmacology and Program in Structural Biology and Biochemistry, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA,To whom correspondence should be addressed. Tel: +1 303 724 3670;
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10
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Ortega E, Rengachari S, Ibrahim Z, Hoghoughi N, Gaucher J, Holehouse AS, Khochbin S, Panne D. Transcription factor dimerization activates the p300 acetyltransferase. Nature 2018; 562:538-544. [PMID: 30323286 PMCID: PMC6914384 DOI: 10.1038/s41586-018-0621-1] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [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: 02/14/2018] [Accepted: 08/15/2018] [Indexed: 01/08/2023]
Abstract
The transcriptional coactivator p300 is a histone lysine acetyltransferase that is typically recruited to transcriptional enhancers and regulates gene expression by acetylating chromatin. Here we show that p300 activation directly depends on the activation and oligomerisation status of transcription factor (TF) ligands. Using two model TFs, IRF3 and STAT1, we demonstrate that TF dimerization enables trans-autoacetylation of p300 in a highly conserved and intrinsically disordered autoinhibitory lysine-rich loop (AIL), resulting in HAT activation. We describe a p300 crystal structure in which the AIL invades the active site of a neighbouring HAT domain thus revealing a snap-shot of a trans-autoacetylation reaction intermediate. Substrate access to the active site involves rearrangement of an autoinhibitory RING domain. Our data explain how cellular signalling, TF activation and dimerization controls p300 activation thus explaining why gene transcription is associated with chromatin acetylation.
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Affiliation(s)
- Esther Ortega
- European Molecular Biology Laboratory, Grenoble, France
| | - Srinivasan Rengachari
- European Molecular Biology Laboratory, Grenoble, France.,Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Göttingen, Germany
| | - Ziad Ibrahim
- European Molecular Biology Laboratory, Grenoble, France.,Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK
| | - Naghmeh Hoghoughi
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Jonathan Gaucher
- European Molecular Biology Laboratory, Grenoble, France.,Université Grenoble Alpes, INSERM U1042, HP2 Laboratory, Grenoble, France
| | - Alex S Holehouse
- Department of Biomedical Engineering and Center for Biological Systems Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Saadi Khochbin
- CNRS UMR 5309, INSERM U1209, Université Grenoble Alpes, Institute for Advanced Biosciences, Grenoble, France
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France. .,Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Leicester, UK.
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11
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Li Y, Muir KW, Bowler MW, Metz J, Haering CH, Panne D. Structural basis for Scc3-dependent cohesin recruitment to chromatin. eLife 2018; 7:e38356. [PMID: 30109982 PMCID: PMC6120753 DOI: 10.7554/elife.38356] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/13/2018] [Indexed: 12/13/2022] Open
Abstract
The cohesin ring complex is required for numerous chromosomal transactions including sister chromatid cohesion, DNA damage repair and transcriptional regulation. How cohesin engages its chromatin substrate has remained an unresolved question. We show here, by determining a crystal structure of the budding yeast cohesin HEAT-repeat subunit Scc3 bound to a fragment of the Scc1 kleisin subunit and DNA, that Scc3 and Scc1 form a composite DNA interaction module. The Scc3-Scc1 subcomplex engages double-stranded DNA through a conserved, positively charged surface. We demonstrate that this conserved domain is required for DNA binding by Scc3-Scc1 in vitro, as well as for the enrichment of cohesin on chromosomes and for cell viability. These findings suggest that the Scc3-Scc1 DNA-binding interface plays a central role in the recruitment of cohesin complexes to chromosomes and therefore for cohesin to faithfully execute its functions during cell division.
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Affiliation(s)
- Yan Li
- European Molecular Biology LaboratoryGrenobleFrance
| | - Kyle W Muir
- European Molecular Biology LaboratoryGrenobleFrance
| | | | - Jutta Metz
- Cell Biology and Biophysics UnitEuropean Molecular Biology LaboratoryHeidelbergGermany
- Structural and Computational Biology UnitEuropean Molecular Biology LaboratoryHeidelbergGermany
| | - Christian H Haering
- Cell Biology and Biophysics UnitEuropean Molecular Biology LaboratoryHeidelbergGermany
- Structural and Computational Biology UnitEuropean Molecular Biology LaboratoryHeidelbergGermany
| | - Daniel Panne
- Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell BiologyUniversity of LeicesterLeicesterUnited Kingdom
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12
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Goudarzi A, Zhang D, Huang H, Barral S, Kwon OK, Qi S, Tang Z, Buchou T, Vitte AL, He T, Cheng Z, Montellier E, Gaucher J, Curtet S, Debernardi A, Charbonnier G, Puthier D, Petosa C, Panne D, Rousseaux S, Roeder RG, Zhao Y, Khochbin S. Dynamic Competing Histone H4 K5K8 Acetylation and Butyrylation Are Hallmarks of Highly Active Gene Promoters. Mol Cell 2017; 62:169-180. [PMID: 27105113 PMCID: PMC4850424 DOI: 10.1016/j.molcel.2016.03.014] [Citation(s) in RCA: 170] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 02/05/2016] [Accepted: 03/10/2016] [Indexed: 12/01/2022]
Abstract
Recently discovered histone lysine acylation marks increase the functional diversity of nucleosomes well beyond acetylation. Here, we focus on histone butyrylation in the context of sperm cell differentiation. Specifically, we investigate the butyrylation of histone H4 lysine 5 and 8 at gene promoters where acetylation guides the binding of Brdt, a bromodomain-containing protein, thereby mediating stage-specific gene expression programs and post-meiotic chromatin reorganization. Genome-wide mapping data show that highly active Brdt-bound gene promoters systematically harbor competing histone acetylation and butyrylation marks at H4 K5 and H4 K8. Despite acting as a direct stimulator of transcription, histone butyrylation competes with acetylation, especially at H4 K5, to prevent Brdt binding. Additionally, H4 K5K8 butyrylation also marks retarded histone removal during late spermatogenesis. Hence, alternating H4 acetylation and butyrylation, while sustaining direct gene activation and dynamic bromodomain binding, could impact the final male epigenome features. Active gene TSSs are marked by competing H4 K5K8 acetylation and butyrylation Histone butyrylation directly stimulates transcription H4K5 butyrylation prevents binding of the testis specific gene expression-driver Brdt H4K5K8 butyrylation is associated with delayed histone removal in spermatogenic cells
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Affiliation(s)
- Afsaneh Goudarzi
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Di Zhang
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - He Huang
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - Sophie Barral
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Oh Kwang Kwon
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - Shankang Qi
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA
| | - Zhanyun Tang
- Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York, NY 10065, USA
| | - Thierry Buchou
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Anne-Laure Vitte
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Tieming He
- Jingjie PTM Biolab (Hangzhou) Co., Ltd., Hangzhou 310018, China
| | - Zhongyi Cheng
- Jingjie PTM Biolab (Hangzhou) Co., Ltd., Hangzhou 310018, China
| | - Emilie Montellier
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Jonathan Gaucher
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France; EMBL Grenoble, BP 181, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Sandrine Curtet
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Alexandra Debernardi
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Guillaume Charbonnier
- TAGC, UMR, S 1090 INSERM Aix-Marseille Université, U928 Parc Scientifique de Luminy case 928 163, Avenue de Luminy, 13288 Marseille Cedex 9, France
| | - Denis Puthier
- TAGC, UMR, S 1090 INSERM Aix-Marseille Université, U928 Parc Scientifique de Luminy case 928 163, Avenue de Luminy, 13288 Marseille Cedex 9, France
| | - Carlo Petosa
- Université Grenoble Alpes/CEA/CNRS, Institut de Biologie Structurale, 38027 Grenoble, France
| | - Daniel Panne
- EMBL Grenoble, BP 181, 71 Avenue des Martyrs, 38042 Grenoble Cedex 9, France
| | - Sophie Rousseaux
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France
| | - Robert G Roeder
- Laboratory of Biochemistry and Molecular Biology, The Rockefeller University, New York, NY 10065, USA
| | - Yingming Zhao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, IL 60637, USA.
| | - Saadi Khochbin
- CNRS UMR 5309, INSERM, U1209, Université Grenoble Alpes, Institut Albert Bonniot, 38700 Grenoble, France.
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13
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Sauer PV, Timm J, Liu D, Sitbon D, Boeri-Erba E, Velours C, Mücke N, Langowski J, Ochsenbein F, Almouzni G, Panne D. Insights into the molecular architecture and histone H3-H4 deposition mechanism of yeast Chromatin assembly factor 1. eLife 2017; 6:e23474. [PMID: 28315525 PMCID: PMC5404918 DOI: 10.7554/elife.23474] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 03/09/2017] [Indexed: 12/16/2022] Open
Abstract
How the very first step in nucleosome assembly, deposition of histone H3-H4 as tetramers or dimers on DNA, is accomplished remains largely unclear. Here, we report that yeast chromatin assembly factor 1 (CAF1), a conserved histone chaperone complex that deposits H3-H4 during DNA replication, binds a single H3-H4 heterodimer in solution. We identify a new DNA-binding domain in the large Cac1 subunit of CAF1, which is required for high-affinity DNA binding by the CAF1 three-subunit complex, and which is distinct from the previously described C-terminal winged-helix domain. CAF1 binds preferentially to DNA molecules longer than 40 bp, and two CAF1-H3-H4 complexes concertedly associate with DNA molecules of this size, resulting in deposition of H3-H4 tetramers. While DNA binding is not essential for H3-H4 tetrasome deposition in vitro, it is required for efficient DNA synthesis-coupled nucleosome assembly. Mutant histones with impaired H3-H4 tetramerization interactions fail to release from CAF1, indicating that DNA deposition of H3-H4 tetramers by CAF1 requires a hierarchical cooperation between DNA binding, H3-H4 deposition and histone tetramerization.
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Affiliation(s)
| | - Jennifer Timm
- European Molecular Biology Laboratory, Grenoble, France
| | - Danni Liu
- CEA, DRF, SB2SM, Laboratoire de Biologie Structurale et Radiobiologie, Gif-sur-Yvette, France
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Gif-sur-Yvette, France
| | - David Sitbon
- Institut Curie, PSL Research University, CNRS, UMR3664, Equipe Labellisée Ligue contre le Cancer, Paris, France
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, Paris, France
| | - Elisabetta Boeri-Erba
- Université Grenoble Alpes, Institut de Biologie Structurale (IBS), Grenoble, France
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Grenoble, France
| | - Christophe Velours
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Gif-sur-Yvette, France
| | - Norbert Mücke
- Abteilung Biophysik der Makromoleküle, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - Jörg Langowski
- Abteilung Biophysik der Makromoleküle, Deutsches Krebsforschungszentrum, Heidelberg, Germany
| | - Françoise Ochsenbein
- CEA, DRF, SB2SM, Laboratoire de Biologie Structurale et Radiobiologie, Gif-sur-Yvette, France
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Sud, Gif-sur-Yvette, France
| | - Geneviève Almouzni
- Institut Curie, PSL Research University, CNRS, UMR3664, Equipe Labellisée Ligue contre le Cancer, Paris, France
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, Paris, France
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France
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14
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Kaczmarska Z, Ortega E, Goudarzi A, Huang H, Kim S, Márquez JA, Zhao Y, Khochbin S, Panne D. Structure of p300 in complex with acyl-CoA variants. Nat Chem Biol 2016; 13:21-29. [PMID: 27820805 DOI: 10.1038/nchembio.2217] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/14/2016] [Indexed: 12/29/2022]
Abstract
Histone acetylation plays an important role in transcriptional activation. Histones are also modified by chemically diverse acylations that are frequently deposited by p300, a transcriptional coactivator that uses a number of different acyl-CoA cofactors. Here we report that while p300 is a robust acetylase, its activity gets weaker with increasing acyl-CoA chain length. Crystal structures of p300 in complex with propionyl-, crotonyl-, or butyryl-CoA show that the aliphatic portions of these cofactors are bound in the lysine substrate-binding tunnel in a conformation that is incompatible with substrate transfer. Lysine substrate binding is predicted to remodel the acyl-CoA ligands into a conformation compatible with acyl-chain transfer. This remodeling requires that the aliphatic portion of acyl-CoA be accommodated in a hydrophobic pocket in the enzymes active site. The size of the pocket and its aliphatic nature exclude long-chain and charged acyl-CoA variants, presumably explaining the cofactor preference for p300.
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Affiliation(s)
| | - Esther Ortega
- European Molecular Biology Laboratory, Grenoble, France
| | - Afsaneh Goudarzi
- Université Grenoble Alpes, Institut Albert Bonniot, Grenoble, France
| | - He Huang
- Ben May Department of Cancer Research, The University of Chicago, Chicago, Illinois, USA
| | - Sunjoo Kim
- Ben May Department of Cancer Research, The University of Chicago, Chicago, Illinois, USA
| | | | - Yingming Zhao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, Illinois, USA
| | - Saadi Khochbin
- Université Grenoble Alpes, Institut Albert Bonniot, Grenoble, France
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France
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15
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Aguilar-Gurrieri C, Larabi A, Vinayachandran V, Patel NA, Yen K, Reja R, Ebong IO, Schoehn G, Robinson CV, Pugh BF, Panne D. Structural evidence for Nap1-dependent H2A-H2B deposition and nucleosome assembly. EMBO J 2016; 35:1465-82. [PMID: 27225933 PMCID: PMC4931181 DOI: 10.15252/embj.201694105] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [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: 02/12/2016] [Accepted: 04/21/2016] [Indexed: 11/25/2022] Open
Abstract
Nap1 is a histone chaperone involved in the nuclear import of H2A–H2B and nucleosome assembly. Here, we report the crystal structure of Nap1 bound to H2A–H2B together with in vitro and in vivo functional studies that elucidate the principles underlying Nap1‐mediated H2A–H2B chaperoning and nucleosome assembly. A Nap1 dimer provides an acidic binding surface and asymmetrically engages a single H2A–H2B heterodimer. Oligomerization of the Nap1–H2A–H2B complex results in burial of surfaces required for deposition of H2A–H2B into nucleosomes. Chromatin immunoprecipitation‐exonuclease (ChIP‐exo) analysis shows that Nap1 is required for H2A–H2B deposition across the genome. Mutants that interfere with Nap1 oligomerization exhibit severe nucleosome assembly defects showing that oligomerization is essential for the chaperone function. These findings establish the molecular basis for Nap1‐mediated H2A–H2B deposition and nucleosome assembly.
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Affiliation(s)
- Carmen Aguilar-Gurrieri
- European Molecular Biology Laboratory, Grenoble, France Unit for Virus Host-Cell Interactions, Univ. Grenoble Alpes-EMBL-CNRS, Grenoble, France
| | - Amédé Larabi
- European Molecular Biology Laboratory, Grenoble, France Unit for Virus Host-Cell Interactions, Univ. Grenoble Alpes-EMBL-CNRS, Grenoble, France
| | - Vinesh Vinayachandran
- Center for Eukaryotic Gene Regulation, Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Nisha A Patel
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Kuangyu Yen
- Department of Cell Biology, Southern Medical University, Guangzhou, China
| | - Rohit Reja
- Center for Eukaryotic Gene Regulation, Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Ima-O Ebong
- Department of Chemistry, University of Oxford, Oxford, UK
| | - Guy Schoehn
- Unit for Virus Host-Cell Interactions, Univ. Grenoble Alpes-EMBL-CNRS, Grenoble, France Université Grenoble-Alpes, Grenoble, France Centre National de la Recherche Scientifique (CNRS) IBS, Grenoble, France CEA, IBS, Grenoble, France
| | | | - B Franklin Pugh
- Center for Eukaryotic Gene Regulation, Department of Biochemistry and Molecular Biology, The Pennsylvania State University, University Park, PA, USA
| | - Daniel Panne
- European Molecular Biology Laboratory, Grenoble, France Unit for Virus Host-Cell Interactions, Univ. Grenoble Alpes-EMBL-CNRS, Grenoble, France
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16
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Muir KW, Kschonsak M, Li Y, Metz J, Haering CH, Panne D. Structure of the Pds5-Scc1 Complex and Implications for Cohesin Function. Cell Rep 2016; 14:2116-2126. [PMID: 26923589 DOI: 10.1016/j.celrep.2016.01.078] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 11/20/2015] [Revised: 12/28/2015] [Accepted: 01/28/2016] [Indexed: 11/19/2022] Open
Abstract
Sister chromatid cohesion is a fundamental prerequisite to faithful genome segregation. Cohesion is precisely regulated by accessory factors that modulate the stability with which the cohesin complex embraces chromosomes. One of these factors, Pds5, engages cohesin through Scc1 and is both a facilitator of cohesion, and, conversely also mediates the release of cohesin from chromatin. We present here the crystal structure of a complex between budding yeast Pds5 and Scc1, thus elucidating the molecular basis of Pds5 function. Pds5 forms an elongated HEAT repeat that binds to Scc1 via a conserved surface patch. We demonstrate that the integrity of the Pds5-Scc1 interface is indispensable for the recruitment of Pds5 to cohesin, and that its abrogation results in loss of sister chromatid cohesion and cell viability.
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Affiliation(s)
- Kyle W Muir
- European Molecular Biology Laboratory Grenoble Outstation and Unit of Virus Host-Cell Interactions, University Grenoble Alpes-CNRS-EMBL, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France
| | - Marc Kschonsak
- European Molecular Biology Laboratory, Cell Biology and Biophysics Unit and Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Yan Li
- European Molecular Biology Laboratory Grenoble Outstation and Unit of Virus Host-Cell Interactions, University Grenoble Alpes-CNRS-EMBL, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France
| | - Jutta Metz
- European Molecular Biology Laboratory, Cell Biology and Biophysics Unit and Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Christian H Haering
- European Molecular Biology Laboratory, Cell Biology and Biophysics Unit and Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany
| | - Daniel Panne
- European Molecular Biology Laboratory Grenoble Outstation and Unit of Virus Host-Cell Interactions, University Grenoble Alpes-CNRS-EMBL, 71 Avenue des Martyrs, CS 90181, 38042 Grenoble Cedex 9, France.
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17
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Panne D. Chromatin recognition and regulation of the acetyltransferase CBP/p300. Acta Crystallogr A Found Adv 2014. [DOI: 10.1107/s2053273314084137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Gene regulation in higher eukaryotes requires recruitment of the transcriptional co-activators CBP/p300 that associate with transcriptional regulators and integrate a large number of signal transduction pathways. Recruitment of CBP/p300 results in acetylation and remodeling of inhibitory chromatin. Recently we have determined the 2.8Å crystal structure of the catalytic core of p300 containing its Bromodomain, the CH2 region and HAT domain in complex with the bi-substrate inhibitor, Lys-CoA. Unexpectedly the structure reveals that the CH2 region contains a discontinuous PHD domain which is interrupted by a RING domain. The Bromodomain, PHD, RING and HAT domains adopt an assembled configuration in which the RING domain is positioned over the HAT substrate binding pocket. Disease mutations that disrupt RING attachment lead to upregulation of HAT activity, revealing an auto-inhibitory role for this domain. Detailed investigation of chromatin substrate recognition showed that the Bromodomain preferentially interacts with histones containing combinations of acetylations rather than singly modified sequences, whereas the p300 PHD domain did not interact with canonical substrates. Our results demonstrate that the Bromodomain substrate specificity is compatible with HAT substrate acetylation patterns suggesting that positive feedback is likely an important component in establishment of active chromatin states. We here present progress in our understanding of the regulation of p300 activity, chromatin modification, readout and how disease-related mutations result in dysregulation of these activities.
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18
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Delvecchio M, Gaucher J, Aguilar-Gurrieri C, Ortega E, Panne D. Structure of the p300 catalytic core and implications for chromatin targeting and HAT regulation. Nat Struct Mol Biol 2013; 20:1040-6. [DOI: 10.1038/nsmb.2642] [Citation(s) in RCA: 175] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 06/27/2013] [Indexed: 02/06/2023]
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19
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Mumtaz IM, Hoyer BF, Panne D, Moser K, Winter O, Cheng QY, Yoshida T, Burmester GR, Radbruch A, Manz RA, Hiepe F. Bone marrow of NZB/W mice is the major site for plasma cells resistant to dexamethasone and cyclophosphamide: implications for the treatment of autoimmunity. J Autoimmun 2012; 39:180-8. [PMID: 22727274 DOI: 10.1016/j.jaut.2012.05.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 05/20/2012] [Indexed: 12/11/2022]
Abstract
Antibodies contribute to the pathogenesis of many chronic inflammatory diseases, including autoimmune disorders and allergies. They are secreted by proliferating plasmablasts, short-lived plasma cells and non-proliferating, long-lived memory plasma cells. Memory plasma cells refractory to immunosuppression are critical for the maintenance of both protective and pathogenic antibody titers. Here, we studied the response of plasma cells in spleen, bone marrow and inflamed kidneys of lupus-prone NZB/W mice to high-dose dexamethasone and/or cyclophosphamide. BrdU+, dividing plasmablasts and short-lived plasma cells in the spleen were depleted while BrdU- memory plasma cells survived. In contrast, all bone marrow plasma cells including anti-DNA secreting cells were refractory to both drugs. Unlike bone marrow and spleen, which showed a predominance of IgM-secreting plasma cells, inflamed kidneys mainly accommodated IgG-secreting plasma cells, including anti-DNA secreting cells, some of which survived the treatments. These results indicate that the bone marrow is the major site of memory plasma cells resistant to treatment with glucocorticoids and anti-proliferative drugs, and that inflamed tissues and secondary lymphoid organs can contribute to the autoreactive plasma cell memory. Therefore, new strategies targeting autoreactive plasma cell memory should be considered. This could be the key to finding a curative approach to the treatment of chronic inflammatory autoantibody-mediated diseases.
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Affiliation(s)
- Imtiaz M Mumtaz
- Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin, Germany
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20
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Gerl V, Lischka A, Panne D, Grossmann P, Berthold R, Hoyer BF, Biesen R, Bruns A, Alexander T, Jacobi A, Dörner T, Burmester GR, Radbruch A, Hiepe F. Blood dendritic cells in systemic lupus erythematosus exhibit altered activation state and chemokine receptor function. Ann Rheum Dis 2009; 69:1370-7. [PMID: 19854711 DOI: 10.1136/ard.2009.111021] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Dendritic cells (DCs) have a pivotal role in the pathogenesis of systemic lupus erythematosus (SLE). Reduced numbers of blood DCs and the accumulation of DCs at inflammatory sites have been observed in SLE. One crucial feature of DCs is their ability to migrate. OBJECTIVE To analyse the maturation/activation state and the migratory capacity of different DC precursor subsets in SLE to further elucidate their role in autoimmunity. METHODS Plasmacytoid DCs (pDCs), myeloid DCs (mDCs) and monocytes from patients with SLE, healthy volunteers and healthy volunteers immunised with tetanus/diphtheria were examined by flow cytometry for expression of subset-specific antigens (BDCA-2, CD11c, CD14, HLA-DR), activation/maturation markers (CD83, CD86, CD40, BLyS) and chemokine receptors (CCR1, CCR5, CCR7, ChemR23). Additionally, migratory capacity to chemokine receptors was investigated in vitro using the chemokines RANTES, CCL19 and chemerin. RESULTS SLE monocytes and mDCs had higher CD86 and B-lymphocyte stimulatory factor (BLyS) expression levels. ChemR23 expression was lower in SLE pDCs and mDCs. Basal and CCL19-specific migration levels were higher in SLE pDCs. Altered DC function in SLE had no correlative changes in chemokine receptor expression, whereas immunisation-induced blood DC migration patterns in healthy donors were accompanied by changes in chemokine receptor expression. CONCLUSIONS The phenotypic and migratory disturbances observed in SLE blood DCs could result in altered distribution of DCs in peripheral tissues, contributing to dysregulated immune responses and autoimmunity.
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Affiliation(s)
- Velia Gerl
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany.
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21
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Shen A, Higgins DE, Panne D. Recognition of AT-rich DNA binding sites by the MogR repressor. Structure 2009; 17:769-77. [PMID: 19446532 DOI: 10.1016/j.str.2009.02.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 02/19/2009] [Accepted: 02/19/2009] [Indexed: 11/16/2022]
Abstract
The MogR transcriptional repressor of the intracellular pathogen Listeria monocytogenes recognizes AT-rich binding sites in promoters of flagellar genes to downregulate flagellar gene expression during infection. We describe here the 1.8 A resolution crystal structure of MogR bound to the recognition sequence 5' ATTTTTTAAAAAAAT 3' present within the flaA promoter region. Our structure shows that MogR binds as a dimer. Each half-site is recognized in the major groove by a helix-turn-helix motif and in the minor groove by a loop from the symmetry-related molecule, resulting in a "crossover" binding mode. This oversampling through minor groove interactions is important for specificity. The MogR binding site has structural features of A-tract DNA and is bent by approximately 52 degrees away from the dimer. The structure explains how MogR achieves binding specificity in the AT-rich genome of L. monocytogenes and explains the evolutionary conservation of A-tract sequence elements within promoter regions of MogR-regulated flagellar genes.
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Affiliation(s)
- Aimee Shen
- Department of Microbiology and Molecular Genetics, Harvard Medical School, Boston, MA 02115, USA
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22
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Abstract
The interferon-beta (IFN-beta) enhanceosome is a paradigm for understanding the role of transcription factor complexes in eukaryotic signal integration. Recent structural studies provide a complete atomic model of the enhanceosome at the protein-DNA interface. The composite model shows how binding of eight transcription factors to enhancer DNA creates a continuous recognition surface. The extensive overlap of individual binding sites creates a composite element that ensures that the enhancer operates as a single unit of regulation. The absence of major protein-protein interfaces between the transcription factors suggests that cooperative binding occurs through a combination of binding-induced conformational changes in DNA structure and specific interactions with coactivator proteins such as CBP/p300. Contacts with virtually every nucleotide explain why the enhancer is evolutionary conserved in mammalian genomes.
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Affiliation(s)
- Daniel Panne
- EMBL, 6 Rue Jules Horowitz, BP181, 38042 Grenoble, France.
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Abstract
Transcriptional activation of the interferon-beta (IFN-beta) gene requires assembly of an enhanceosome containing ATF-2/c-Jun, IRF-3/IRF-7, and NFkappaB. These factors bind cooperatively to the IFN-beta enhancer and recruit coactivators and chromatin-remodeling proteins to the IFN-beta promoter. We describe here a crystal structure of the DNA-binding domains of IRF-3, IRF-7, and NFkappaB, bound to one half of the enhancer, and use a previously described structure of the remaining half to assemble a complete picture of enhanceosome architecture in the vicinity of the DNA. Association of eight proteins with the enhancer creates a continuous surface for recognizing a composite DNA-binding element. Paucity of local protein-protein contacts suggests that cooperative occupancy of the enhancer comes from both binding-induced changes in DNA conformation and interactions with additional components such as CBP. Contacts with virtually every nucleotide pair account for the evolutionary invariance of the enhancer sequence.
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Affiliation(s)
- Daniel Panne
- Harvard Medical School, Department of Biological Chemistry and Molecular Pharmacology, Howard Hughes Medical Institute, 250 Longwood Ave, Boston, 02115 MA
| | - Tom Maniatis
- Harvard University, Department of Molecular and Cellular Biology, 7 Divinity Ave, Cambridge MA, 02138
| | - Stephen C. Harrison
- Harvard Medical School, Department of Biological Chemistry and Molecular Pharmacology, Howard Hughes Medical Institute, 250 Longwood Ave, Boston, 02115 MA
- Corresponding author , fax: 617 432 5600, tel: 617 432 5607
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24
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Abstract
The transcription factor interferon regulatory factor 3 (IRF-3) regulates genes in the innate immune response. IRF-3 is activated through phosphorylation by the kinases IKK epsilon and/or TBK1. Phosphorylation results in IRF-3 dimerization and removal of an autoinhibitory structure to allow interaction with the coactivators CBP/p300. The precise role of the different phosphorylation sites has remained controversial. Using purified proteins we show that TBK1 can directly phosphorylate full-length IRF-3 in vitro. Phosphorylation at residues in site 2 (Ser(396)-Ser(405)) alleviates autoinhibition to allow interaction with CBP (CREB-binding protein) and facilitates phosphorylation at site 1 (Ser(385) or Ser(386)). Phosphorylation at site 1 is, in turn, required for IRF-3 dimerization. The data support a two-step phosphorylation model for IRF-3 activation mediated by TBK1.
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Affiliation(s)
- Daniel Panne
- Department of Biological Chemistry and Molecular Pharmacology, Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA
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25
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Panne D, Maniatis T, Harrison SC. Crystal structure of ATF-2/c-Jun and IRF-3 bound to the interferon-beta enhancer. EMBO J 2004; 23:4384-93. [PMID: 15510218 PMCID: PMC526468 DOI: 10.1038/sj.emboj.7600453] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.0] [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: 08/16/2004] [Accepted: 09/29/2004] [Indexed: 11/09/2022] Open
Abstract
Transcriptional activation of the interferon-beta (IFN-beta) gene requires assembly of an enhanceosome containing the transcription factors ATF-2/c-Jun, IRF-3/IRF-7, NF-kappaB and HMGI(Y). These factors cooperatively bind a composite DNA site and activate expression of the IFN-beta gene. The 3.0 A crystal structure of the DNA-binding domains of ATF-2/c-Jun and two IRF-3 molecules in a complex with 31 base pairs (bp) of the PRDIV-PRDIII region of the IFN-beta enhancer shows that association of the four proteins with DNA creates a continuous surface for the recognition of 24 bp. The structure, together with in vitro binding studies and protein mutagenesis, shows that protein-protein interactions are not critical for cooperative binding. Instead, cooperativity arises mainly through nucleotide sequence-dependent structural changes in the DNA that allow formation of complementary DNA conformations. Because the binding sites overlap on the enhancer, the unit of recognition is the entire nucleotide sequence, not the individual subsites.
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Affiliation(s)
- Daniel Panne
- Department of Biological Chemistry & Molecular Pharmacology, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
| | - Tom Maniatis
- Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA, USA
| | - Stephen C Harrison
- Department of Biological Chemistry & Molecular Pharmacology, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA, USA
- Department of Biological Chemistry & Molecular Pharmacology, Howard Hughes Medical Institute, Harvard Medical School, 200 Longwood Avenue, Boston, 02115 MA, USA. Tel.: +1 617 432 5605; Fax: +1 617 432 5607; E-mail:
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26
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Abstract
McrBC from Escherichia coli K-12 is a restriction enzyme that belongs to the family of AAA(+) proteins and cuts DNA containing modified cytosines. Two proteins are expressed from the mcrB gene: a full-length version, McrB(L), and a short version, McrB(S). McrB(L) binds specifically to the methylated recognition site and is, therefore, the DNA-binding moiety of the McrBC endonuclease. McrB(S) is devoid of DNA-binding activity. We observed that the quaternary structure of the endonuclease depends on binding of the cofactors. In gel filtration experiments, McrB(L) and McrB(S) form high molecular weight oligomers in the presence of Mg(2+) and GTP, GDP or GTP-gamma-S. Oligomerization did not require the presence of DNA and was independent of GTP hydrolysis. Electron micrographs of negatively stained McrB(L) and McrB(S) revealed ring-shaped particles with a central channel. Mass analysis by scanning transmission electron microscopy indicates that McrB(L) and McrB(S) form single heptameric rings as well as tetradecamers. In the presence of McrC, a subunit that is essential for DNA cleavage, the tetradecameric species was the major form of the endonuclease.
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Affiliation(s)
| | - Shirley A. Müller
- Department of Microbiology and
Maurice E.Müller Institute for Structural Biology, Biozentrum, Basel University, Klingelbergstrasse 70, CH-4056 Basel, Switzerland Corresponding author e-mail:
| | - Sabine Wirtz
- Department of Microbiology and
Maurice E.Müller Institute for Structural Biology, Biozentrum, Basel University, Klingelbergstrasse 70, CH-4056 Basel, Switzerland Corresponding author e-mail:
| | - Andreas Engel
- Department of Microbiology and
Maurice E.Müller Institute for Structural Biology, Biozentrum, Basel University, Klingelbergstrasse 70, CH-4056 Basel, Switzerland Corresponding author e-mail:
| | - Thomas A. Bickle
- Department of Microbiology and
Maurice E.Müller Institute for Structural Biology, Biozentrum, Basel University, Klingelbergstrasse 70, CH-4056 Basel, Switzerland Corresponding author e-mail:
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27
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Abstract
McrBC, a GTP-requiring, modification-dependent endonuclease of Escherichia coli K-12, specifically recognizes DNA sites of the form 5' R(m)C 3'. DNA cleavage normally requires translocation-mediated coordination between two such recognition elements at distinct sites. We have investigated assembly of the cleavage-competent complex with gel-shift and DNase I footprint analysis. In the gel-shift system, McrB(L) binding resulted in a fast-migrating specific shifted band, in a manner requiring both GTP and Mg(2+). The binding was specific for methylated DNA and responded to local sequence changes in the same way that cleavage does. Single-stranded DNA competed for McrB(L)-binding in a modification and sequence-specific fashion. A supershifted species was formed in the presence of McrC and GTPgammaS. DNase I footprint analysis showed modest cooperativity in binding to two sites, and a two-site substrate displayed protection in non-specific spacer DNA in addition to the recognition elements. The addition of McrC did not affect the footprint obtained. We propose that McrC effects a conformational change in the complex rather than a reorganization of the DNA:protein interface.
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Affiliation(s)
- F J Stewart
- New England Biolabs, Inc, Beverly, MA 01915, USA
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28
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Evans TC, Martin D, Kolly R, Panne D, Sun L, Ghosh I, Chen L, Benner J, Liu XQ, Xu MQ. Protein trans-splicing and cyclization by a naturally split intein from the dnaE gene of Synechocystis species PCC6803. J Biol Chem 2000; 275:9091-4. [PMID: 10734038 DOI: 10.1074/jbc.275.13.9091] [Citation(s) in RCA: 151] [Impact Index Per Article: 6.3] [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: 11/06/2022] Open
Abstract
A naturally occurring split intein from the dnaE gene of Synechocystis sp. PCC6803 (Ssp DnaE intein) has been shown to mediate efficient in vivo and in vitro trans-splicing in a foreign protein context. A cis-splicing Ssp DnaE intein construct displayed splicing activity similar to the trans-splicing form, which suggests that the N- and C-terminal intein fragments have a high affinity interaction. An in vitro trans-splicing system was developed that used a bacterially expressed N-terminal fragment of the Ssp DnaE intein and either a bacterially expressed or chemically synthesized intein C-terminal fragment. Unlike artificially split inteins, the Ssp DnaE intein fragments could be reconstituted in vitro under native conditions to mediate splicing as well as peptide bond cleavage. This property allowed the development of an on-column trans-splicing system that permitted the facile separation of reactants and products. Furthermore, the trans-splicing activity of the Ssp DnaE intein was successfully applied to the cyclization of proteins in vivo. Also, the isolation of the unspliced precursor on chitin resin allowed the cyclization reaction to proceed in vitro. The Ssp DnaE intein thus represents a potentially important protein for in vivo and in vitro protein manipulation.
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Affiliation(s)
- T C Evans
- New England Biolabs, Inc., Beverly, Massachusetts 01915, USA
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29
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Abstract
McrBC specifically recognizes and cleaves methylated DNA in a reaction dependent on GTP hydrolysis. DNA cleavage requires at least two recognition sites that are optimally separated by 40-80 bp, but can be spaced as far as 3 kb apart. The nature of the communication between two recognition sites was analyzed on DNA substrates containing one or two recognition sites. DNA cleavage of circular DNA required only one methylated recognition site, whereas the linearized form of this substrate was not cleaved. However, the linearized substrate was cleaved if a Lac repressor was bound adjacent to the recognition site. These results suggest a model in which communication between two remote sites is accomplished by DNA translocation rather than looping. A mutant protein with defective GTPase activity cleaved substrates with closely spaced recognition sites, but not substrates where the sites were further apart. This indicates that McrBC translocates DNA in a reaction dependent on GTP hydrolysis. We suggest that DNA cleavage occurs by the encounter of two DNA-translocating McrBC complexes, or can be triggered by non-specific physical obstacles like the Lac repressor bound on the enzyme's path along DNA. Our results indicate that McrBC belongs to the general class of DNA "motor proteins", which use the free energy associated with nucleoside 5'-triphosphate hydrolysis to translocate along DNA.
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Affiliation(s)
- D Panne
- Department of Microbiology, Biozentrum, Basel University, Klingelbergstrasse 70, Basel, CH-4056, Switzerland
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30
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Abstract
McrBC is a methylation-dependent endonuclease from Escherichia coli K-12. The enzyme recognizes DNA with modified cytosines preceded by a purine. McrBC restricts DNA that contains at least two methylated recognition sites separated by 40-80 bp. Two gene products, McrBL and McrBs, are produced from the mcrB gene and one, McrC, from the mcrC gene. DNA cleavage in vitro requires McrBL, McrC, GTP and Mg2+. We found that DNA cleavage was optimal at a ratio of 3-5 McrBL per molecule of McrC, suggesting that formation of a multisubunit complex with several molecules of McrBL is required for cleavage. To understand the role of McrBs, we have purified the protein and analyzed its role in vitro. At the optimal ratio of 3-5 McrBL per molecule of McrC, McrBs acted as an inhibitor of DNA cleavage. Inhibition was due to sequestration of McrC and required the presence of GTP, suggesting that the interaction is GTP dependent. If McrC was in excess, a condition resulting in suboptimal DNA cleavage, addition of McrBs enhanced DNA cleavage, presumably due to sequestration of excess McrC. We suggest that the role of McrBs is to modulate McrBC activity by binding to McrC.
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Affiliation(s)
- D Panne
- Department of Microbiology, Biozentrum, Basel University, Klingelbergstrasse 70, CH-4056 Basel, Switzerland
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31
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Abstract
Inteins are protein splicing elements that mediate their excision from precursor proteins and the joining of the flanking protein sequences (exteins). In this study, protein splicing was controlled by splitting precursor proteins within the Psp Pol-1 intein and expressing the resultant fragments in separate hosts. Reconstitution of an active intein was achieved by in vitro assembly of precursor fragments. Both splicing and intein endonuclease activity were restored. Complementary fragments from two of the three fragmentation positions tested were able to splice in vitro. Fragments resulting in redundant overlaps of intein sequences or containing affinity tags at the fragmentation sites were able to splice. Fragment pairs resulting in a gap in the intein sequence failed to splice or cleave. However, similar deletions in unfragmented precursors also failed to splice or cleave. Single splice junction cleavage was not observed with single fragments. In vitro splicing of intein fragments under native conditions was achieved using mini exteins. Trans-splicing allows differential modification of defined regions of a protein prior to extein ligation, generating partially labeled proteins for NMR analysis or enabling the study of the effects of any type of protein modification on a limited region of a protein.
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