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Bogner AN, Ji J, Tanner JJ. Structure-based engineering of minimal proline dehydrogenase domains for inhibitor discovery. Protein Eng Des Sel 2022; 35:gzac016. [PMID: 36448708 PMCID: PMC9801229 DOI: 10.1093/protein/gzac016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 11/11/2022] [Accepted: 11/21/2022] [Indexed: 12/03/2022] Open
Abstract
Proline dehydrogenase (PRODH) catalyzes the FAD-dependent oxidation of l-proline to Δ1-pyrroline-5-carboxylate and is a target for inhibitor discovery because of its importance in cancer cell metabolism. Because human PRODH is challenging to purify, the PRODH domains of the bacterial bifunctional enzyme proline utilization A (PutA) have been used for inhibitor development. These systems have limitations due to large polypeptide chain length, conformational flexibility and the presence of domains unrelated to PRODH activity. Herein, we report the engineering of minimal PRODH domains for inhibitor discovery. The best designs contain one-third of the 1233-residue PutA from Sinorhizobium meliloti and include a linker that replaces the PutA α-domain. The minimal PRODHs exhibit near wild-type enzymatic activity and are susceptible to known inhibitors and inactivators. Crystal structures of minimal PRODHs inhibited by S-(-)-tetrahydro-2-furoic acid and 2-(furan-2-yl)acetic acid were determined at 1.23 and 1.72 Å resolution. Minimal PRODHs should be useful in chemical probe discovery.
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Affiliation(s)
- Alexandra N Bogner
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - Juan Ji
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
| | - John J Tanner
- Department of Biochemistry, University of Missouri, Columbia, MO 65211, USA
- Department of Chemistry, University of Missouri, Columbia, MO 65211, USA
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2
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Lahham M, Jha S, Goj D, Macheroux P, Wallner S. The family of sarcosine oxidases: Same reaction, different products. Arch Biochem Biophys 2021; 704:108868. [PMID: 33812916 DOI: 10.1016/j.abb.2021.108868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/26/2021] [Accepted: 03/27/2021] [Indexed: 12/11/2022]
Abstract
The subfamily of sarcosine oxidase is a set of enzymes within the larger family of amine oxidases. It is ubiquitously distributed among different kingdoms of life. The member enzymes catalyze the oxidization of an N-methyl amine bond of amino acids to yield unstable imine species that undergo subsequent spontaneous non-enzymatic reactions, forming an array of different products. These products range from demethylated simple species to complex alkaloids. The enzymes belonging to the sarcosine oxidase family, namely, monomeric and heterotetrameric sarcosine oxidase, l-pipecolate oxidase, N-methyltryptophan oxidase, NikD, l-proline dehydrogenase, FsqB, fructosamine oxidase and saccharopine oxidase have unique features differentiating them from other amine oxidases. This review highlights the key attributes of the sarcosine oxidase family enzymes, in terms of their substrate binding motif, type of oxidation reaction mediated and FAD regeneration, to define the boundaries of this group and demarcate these enzymes from other amine oxidase families.
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Affiliation(s)
- Majd Lahham
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria; Department of Biochemistry and Microbiology, Aljazeera Private University, Ghabagheb, Syria
| | - Shalinee Jha
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Dominic Goj
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Peter Macheroux
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria
| | - Silvia Wallner
- Institute of Biochemistry, Graz University of Technology, NAWI Graz, Graz, Austria.
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3
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Fabro G, Cislaghi AP, Condat F, Deza Borau G, Alvarez ME. The N-terminal domain of Arabidopsis proline dehydrogenase affects enzymatic activity and protein oligomerization. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:268-276. [PMID: 32574985 DOI: 10.1016/j.plaphy.2020.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 03/10/2020] [Accepted: 04/13/2020] [Indexed: 05/21/2023]
Abstract
Proline dehydrogenase (ProDH) is a flavoenzyme that catalyzes the oxidation of proline (Pro) into Δ1-pyrroline-5-carboxylate (P5C). In eukaryotes, ProDH coordinates with different Pro metabolism enzymes to control energy supply or stress responses signaling. Heterologous expression and crystallization of prokaryotic enzymes provided key data on their active center, folding capacity and oligomerization status. In contrast, eukaryotic ProDHs have not been crystallized so far, and their study as recombinant proteins remains limited. Plants contain two isoforms of ProDH with non-redundant functions. To contribute to the study of these enzymes, we describe the modeling, expression in E. coli, purification, and characterization of the Arabidopsis isoenzymes, AtProDH1 and AtProDH2. The 3D model suggested that both proteins adopt a distorted barrel structure (βα) with a cap formed by N-terminal α helices. The expression of two types of N-terminal deletion proteins indicated that this domain affected enzyme activity. Full-length enzymes had Km values similar to those of native proteins, whereas truncated proteins were inactive. Moreover, the first α helix proved to be necessary for AtProDH1 and AtProDH2 activities. Interestingly, both isoenzymes were able to oligomerize and this also required the first N-terminal α helix. Thus, we report the first insights into structure-function relationship of plant ProDHs demonstrating that the N-terminus, although not directly involved in catalysis, controls enzyme arrangement and activity. The resources generated here could be useful to analyze other plant ProDH features, such as its coordination with other enzymes, and differences between ProDH1 and ProDH2, providing new information on its effects on stress tolerance.
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Affiliation(s)
- Georgina Fabro
- Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, CONICET, Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina.
| | - Ana Paula Cislaghi
- Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, CONICET, Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - Félix Condat
- Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, CONICET, Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - Germán Deza Borau
- Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, CONICET, Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina
| | - María Elena Alvarez
- Centro de Investigaciones en Química Biológica de Córdoba, CIQUIBIC, CONICET, Departamento de Química Biológica Ranwel Caputto, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA, Córdoba, Argentina.
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4
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Huijbers MME, Wu JW, Westphal AH, Berkel WJH. Dimerization of Proline Dehydrogenase from
Thermus thermophilus
Is Crucial for Its Thermostability. Biotechnol J 2019; 14:e1800540. [DOI: 10.1002/biot.201800540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/22/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Mieke M. E. Huijbers
- Laboratory of BiochemistryWageningen University & ResearchStippeneng 4, 6708 WE Wageningen The Netherlands
| | - Jenny W. Wu
- Laboratory of BiochemistryWageningen University & ResearchStippeneng 4, 6708 WE Wageningen The Netherlands
| | - Adrie H. Westphal
- Laboratory of BiochemistryWageningen University & ResearchStippeneng 4, 6708 WE Wageningen The Netherlands
| | - Willem J. H. Berkel
- Laboratory of BiochemistryWageningen University & ResearchStippeneng 4, 6708 WE Wageningen The Netherlands
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5
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Huijbers MME, van Alen I, Wu JW, Barendregt A, Heck AJR, van Berkel WJH. Functional Impact of the N-terminal Arm of Proline Dehydrogenase from Thermus thermophilus. Molecules 2018; 23:molecules23010184. [PMID: 29337919 PMCID: PMC6017737 DOI: 10.3390/molecules23010184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/11/2018] [Accepted: 01/14/2018] [Indexed: 12/15/2022] Open
Abstract
Proline dehydrogenase (ProDH) is a ubiquitous flavoenzyme that catalyzes the oxidation of proline to Δ1-pyrroline-5-carboxylate. Thermus thermophilus ProDH (TtProDH) contains in addition to its flavin-binding domain an N-terminal arm, consisting of helices αA, αB, and αC. Here, we report the biochemical properties of the helical arm truncated TtProDH variants ΔA, ΔAB, and ΔABC, produced with maltose-binding protein as solubility tag. All three truncated variants show similar spectral properties as TtProDH, indicative of a conserved flavin-binding pocket. ΔA and ΔAB are highly active tetramers that rapidly react with the suicide inhibitor N-propargylglycine. Removal of the entire N-terminal arm (ΔABC) results in barely active dimers that are incapable of forming a flavin adduct with N-propargylglycine. Characterization of V32D, Y35F, and V36D variants of ΔAB established that a hydrophobic patch between helix αC and helix α8 is critical for TtProDH catalysis and tetramer stabilization.
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Affiliation(s)
- Mieke M. E. Huijbers
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands; (M.M.E.H.); (I.v.A.); (J.W.W.)
| | - Ilona van Alen
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands; (M.M.E.H.); (I.v.A.); (J.W.W.)
| | - Jenny W. Wu
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands; (M.M.E.H.); (I.v.A.); (J.W.W.)
| | - Arjan Barendregt
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Padualaan 8, 3584 Utrecht, The Netherlands; (A.B.); (A.J.R.H.)
- Netherlands Proteomics Center, Padualaan 8, 3584 Utrecht, The Netherlands
| | - Albert J. R. Heck
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute of Pharmaceutical Sciences, Utrecht University, Padualaan 8, 3584 Utrecht, The Netherlands; (A.B.); (A.J.R.H.)
- Netherlands Proteomics Center, Padualaan 8, 3584 Utrecht, The Netherlands
| | - Willem J. H. van Berkel
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands; (M.M.E.H.); (I.v.A.); (J.W.W.)
- Correspondence: ; Tel.: +31-6-120-77313
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6
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Westphal AH, Geerke-Volmer AA, van Mierlo CPM, van Berkel WJH. Chaotropic heat treatment resolves native-like aggregation of a heterologously produced hyperthermostable laminarinase. Biotechnol J 2017; 12. [PMID: 28403549 DOI: 10.1002/biot.201700007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 11/10/2022]
Abstract
Production of hyperthermostable enzymes in mesophilic hosts frequently causes undesired aggregation of these proteins. During production of Pyrococcus furiosus endo-β-1,3 glucanase (LamA) in Escherichia coli, soluble and insoluble species form. Here, the authors address the composition of this mixture, including the nature of LamA conformers, and establish a method to increase the yield of native monomer. With gel electrophoresis, size-exclusion chromatography, light scattering, circular dichroism and enzyme kinetics the authors show that approximately 50 % of heterologously produced LamA is soluble, and that 40 % of this fraction constitutes native-like oligomers and non-native monomers. Soluble oligomers display, like native LamA monomer, substrate inhibition, although with poor activity. Treatment of soluble oligomers with 3 M guanidinium hydrochloride at 80 °C yields up to 75 % properly active monomer. Non-native monomer shows low specific activity without substrate inhibition. Incubating non-native monomer with 3 M guanidinium hydrochloride at 80 °C causes formation of 25 % native LamA. Also, a large amount of insoluble LamA aggregates can be converted into soluble native monomer by application of this procedure. Thus, chaotropic heat treatment can improve the yield and quality of hyperthermostable proteins that form aberrant species during production in E. coli.
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Affiliation(s)
- Adrie H Westphal
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Astrid A Geerke-Volmer
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands.,Present address: Technology & Support, Aspen Oss B.V., Oss, The Netherlands
| | - Carlo P M van Mierlo
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands
| | - Willem J H van Berkel
- Laboratory of Biochemistry, Wageningen University & Research, Wageningen, The Netherlands
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7
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Huijbers MME, Martínez-Júlvez M, Westphal AH, Delgado-Arciniega E, Medina M, van Berkel WJH. Proline dehydrogenase from Thermus thermophilus does not discriminate between FAD and FMN as cofactor. Sci Rep 2017; 7:43880. [PMID: 28256579 PMCID: PMC5335563 DOI: 10.1038/srep43880] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/30/2017] [Indexed: 12/19/2022] Open
Abstract
Flavoenzymes are versatile biocatalysts containing either FAD or FMN as cofactor. FAD often binds to a Rossmann fold, while FMN prefers a TIM-barrel or flavodoxin-like fold. Proline dehydrogenase is denoted as an exception: it possesses a TIM barrel-like fold while binding FAD. Using a riboflavin auxotrophic Escherichia coli strain and maltose-binding protein as solubility tag, we produced the apoprotein of Thermus thermophilus ProDH (MBP-TtProDH). Remarkably, reconstitution with FAD or FMN revealed that MBP-TtProDH has no preference for either of the two prosthetic groups. Kinetic parameters of both holo forms are similar, as are the dissociation constants for FAD and FMN release. Furthermore, we show that the holo form of MBP-TtProDH, as produced in E. coli TOP10 cells, contains about three times more FMN than FAD. In line with this flavin content, the crystal structure of TtProDH variant ΔABC, which lacks helices αA, αB and αC, shows no electron density for an AMP moiety of the cofactor. To the best of our knowledge, this is the first example of a flavoenzyme that does not discriminate between FAD and FMN as cofactor. Therefore, classification of TtProDH as an FAD-binding enzyme should be reconsidered.
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Affiliation(s)
- Mieke M. E. Huijbers
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Marta Martínez-Júlvez
- Department of Biochemistry and Molecular Cell Biology and Institute for Biocomputation and Physics of Complex Systems, University of Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Adrie H. Westphal
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Estela Delgado-Arciniega
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Milagros Medina
- Department of Biochemistry and Molecular Cell Biology and Institute for Biocomputation and Physics of Complex Systems, University of Zaragoza, Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Willem J. H. van Berkel
- Laboratory of Biochemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
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8
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Schafhauser T, Kirchner N, Kulik A, Huijbers MM, Flor L, Caradec T, Fewer DP, Gross H, Jacques P, Jahn L, Jokela J, Leclère V, Ludwig-Müller J, Sivonen K, van Berkel WJ, Weber T, Wohlleben W, van Pée KH. The cyclochlorotine mycotoxin is produced by the nonribosomal peptide synthetase CctN inTalaromyces islandicus(‘Penicillium islandicum’). Environ Microbiol 2016; 18:3728-3741. [DOI: 10.1111/1462-2920.13294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/15/2016] [Accepted: 03/07/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Thomas Schafhauser
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
| | - Norbert Kirchner
- Department of Pharmaceutical Biology; Pharmaceutical Institute, University of Tübingen; Auf der Morgenstelle 8 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Andreas Kulik
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
| | - Mieke M.E. Huijbers
- Laboratory of Biochemistry; Wageningen University; Dreijenlaan 3 6703 HA Wageningen The Netherlands
| | - Liane Flor
- Allgemeine Biochemie, Technische Universität Dresden; 01069 Dresden Germany
| | - Thibault Caradec
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | - David P. Fewer
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Harald Gross
- Department of Pharmaceutical Biology; Pharmaceutical Institute, University of Tübingen; Auf der Morgenstelle 8 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Philippe Jacques
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | - Linda Jahn
- Institut für Botanik; Technische Universität Dresden; 01062 Dresden Germany
| | - Jouni Jokela
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Valérie Leclère
- Research Laboratory in Agro-Food and Biotechnology; Charles Viollette Institute, Team ProBioGEM, Polytech-Lille, Université Lille1- Sciences et Technologies; 59655 Villeneuve d'Ascq France
| | | | - Kaarina Sivonen
- Microbiology and Biotechnology Division, Department of Food and Environmental Sciences, University of Helsinki; Viikinkaari 9 FIN-00014 Helsinki Finland
| | - Willem J.H. van Berkel
- Laboratory of Biochemistry; Wageningen University; Dreijenlaan 3 6703 HA Wageningen The Netherlands
| | - Tilmann Weber
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark; Kogle Alle 6 2970 Hørsholm Denmark
| | - Wolfgang Wohlleben
- Mikrobiologie und Biotechnologie, Interfakultäres Institut für Mikrobiologie und Infektionsmedizin; Eberhard Karls Universität Tübingen; Auf der Morgenstelle 28 72076 Tübingen Germany
- German Centre for Infection Research (DZIF), Partner site Tübingen; 72076 Tübingen Germany
| | - Karl-Heinz van Pée
- Allgemeine Biochemie, Technische Universität Dresden; 01069 Dresden Germany
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