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Hamed MB, Busche T, Simoens K, Carpentier S, Kormanec J, Van Mellaert L, Anné J, Kalinowski J, Bernaerts K, Karamanou S, Economou A. Enhanced protein secretion in reduced genome strains of Streptomyces lividans. Microb Cell Fact 2024; 23:13. [PMID: 38183102 PMCID: PMC10768272 DOI: 10.1186/s12934-023-02269-x] [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: 07/26/2023] [Accepted: 12/10/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND S. lividans TK24 is a popular host for the production of small molecules and the secretion of heterologous protein. Within its large genome, twenty-nine non-essential clusters direct the biosynthesis of secondary metabolites. We had previously constructed ten chassis strains, carrying deletions in various combinations of specialized metabolites biosynthetic clusters, such as those of the blue actinorhodin (act), the calcium-dependent antibiotic (cda), the undecylprodigiosin (red), the coelimycin A (cpk) and the melanin (mel) clusters, as well as the genes hrdD, encoding a non-essential sigma factor, and matAB, a locus affecting mycelial aggregation. Genome reduction was aimed at reducing carbon flow toward specialized metabolite biosynthesis to optimize the production of secreted heterologous protein. RESULTS Two of these S. lividans TK24 derived chassis strains showed ~ 15% reduction in biomass yield, 2-fold increase of their total native secretome mass yield and enhanced abundance of several secreted proteins compared to the parental strain. RNAseq and proteomic analysis of the secretome suggested that genome reduction led to cell wall and oxidative stresses and was accompanied by the up-regulation of secretory chaperones and of secDF, a Sec-pathway component. Interestingly, the amount of the secreted heterologous proteins mRFP and mTNFα, by one of these strains, was 12 and 70% higher, respectively, than that secreted by the parental strain. CONCLUSION The current study described a strategy to construct chassis strains with enhanced secretory abilities and proposed a model linking the deletion of specialized metabolite biosynthetic clusters to improved production of secreted heterologous proteins.
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Affiliation(s)
- Mohamed Belal Hamed
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
- Molecular Biology Depart, National Research Centre, Dokii, Cairo, Egypt
- Department of Neurosciences, Leuven Research Institute for Neuroscience and Disease (LIND), KU Leuven, VIB-KU Leuven Center for Brain & Disease Research, Leuven, Belgium
| | - Tobias Busche
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kenneth Simoens
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Sebastien Carpentier
- SYBIOMA, KU Leuven facility for Systems Biology Based Mass Spectrometry, Leuven, B-3000, Belgium
| | - Jan Kormanec
- Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, Bratislava, 84551, Slovakia
| | - Lieve Van Mellaert
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Jozef Anné
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
| | - Joern Kalinowski
- Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Kristel Bernaerts
- Department of Chemical Engineering, Chemical and Biochemical Reactor Engineering and Safety (CREaS), KU Leuven, Leuven, B-3001, Belgium
| | - Spyridoula Karamanou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium.
| | - Anastassios Economou
- Department of Microbiology, Immunology and Transplantation, Rega Institute, Laboratory of Molecular Bacteriology, KU Leuven, Herestraat 49, Leuven, B-3000, Belgium
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Berini F, Marinelli F, Binda E. Streptomycetes: Attractive Hosts for Recombinant Protein Production. Front Microbiol 2020; 11:1958. [PMID: 32973711 PMCID: PMC7468451 DOI: 10.3389/fmicb.2020.01958] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/24/2020] [Indexed: 01/28/2023] Open
Abstract
Enzymes are increasingly applied as biocatalysts for fulfilling industrial needs in a variety of applications and there is a bursting of interest for novel therapeutic proteins. Consequently, developing appropriate expression platforms for efficiently producing such recombinant proteins represents a crucial challenge. It is nowadays widely accepted that an ideal ‘universal microbial host’ for heterologous protein expression does not exist. Indeed, the first-choice microbes, as Escherichia coli or yeasts, possess known intrinsic limitations that inevitably restrict their applications. In this scenario, bacteria belonging to the Streptomyces genus need to be considered with more attention as promising, alternative, and versatile platforms for recombinant protein production. This is due to their peculiar features, first-of-all their natural attitude to secrete proteins in the extracellular milieu. Additionally, streptomycetes are considered robust and scalable industrial strains and a wide range of tools for their genetic manipulation is nowadays available. This mini-review includes an overview of recombinant protein production in streptomycetes, covering nearly 100 cases of heterologous proteins expressed in these Gram-positives from the 1980s to December 2019. We investigated homologous sources, heterologous hosts, and molecular tools (promoters/vectors/signal peptides) used for the expression of these recombinant proteins. We reported on their final cellular localization and yield. Thus, this analysis might represent a useful source of information, showing pros and cons of using streptomycetes as platform for recombinant protein production and paving the way for their more extensive use in future as alternative heterologous hosts.
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Affiliation(s)
- Francesca Berini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Flavia Marinelli
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Elisa Binda
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
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Tsolis KC, Hamed MB, Simoens K, Koepff J, Busche T, Rückert C, Oldiges M, Kalinowski J, Anné J, Kormanec J, Bernaerts K, Karamanou S, Economou A. Secretome Dynamics in a Gram-Positive Bacterial Model. Mol Cell Proteomics 2019; 18:423-436. [PMID: 30498012 PMCID: PMC6398212 DOI: 10.1074/mcp.ra118.000899] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 11/21/2018] [Indexed: 12/11/2022] Open
Abstract
Protein secretion is a central biological process in all organisms. Most studies dissecting bacterial secretion mechanisms have focused on Gram-negative cell envelopes such as that of Escherichia coli However, proteomics analyses in Gram negatives is hampered by their outer membrane. Here we studied protein secretion in the Gram-positive bacterium Streptomyces lividans TK24, in which most of the secretome is released in the growth medium. We monitored changes of the secretome as a function of growth phase and medium. We determined distinct protein classes of "house-keeping" secreted proteins that do not change their appearance or abundance in the various media and growth phases. These comprise mainly enzymes involved in cell wall maintenance and basic transport. In addition, we detected significant abundance and content changes to a sub-set of the proteome, as a function of growth in the different media. These did not depend on the media being minimal or rich. Transcriptional regulation but not changes in export machinery components can explain some of these changes. However, additional downstream mechanisms must be important for selective secretome funneling. These observations lay the foundations of using S. lividans as a model organism to study how metabolism is linked to optimal secretion and help develop rational optimization of heterologous protein production.
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Affiliation(s)
- Konstantinos C Tsolis
- From the ‡KU Leuven, Rega Institute, Dpt of Microbiology and Immunology, Herestraat 49, B-3000 Leuven, Belgium
| | - Mohamed Belal Hamed
- From the ‡KU Leuven, Rega Institute, Dpt of Microbiology and Immunology, Herestraat 49, B-3000 Leuven, Belgium
- ‡‡Molecular Biology Dpt, National Research Centre, Dokki, Giza, Egypt
| | - Kenneth Simoens
- §KU Leuven, Bio- & chemical systems Technology, Reactor Engineering and Safety Section, Department of Chemical Engineering, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Joachim Koepff
- ¶Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, IBG-1: Biotechnology, Leo-Brandt-Straβe, 52428, Jülich, Germany
| | - Tobias Busche
- ‖Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
- **Institute for Biology-Microbiology, Freie Universität Berlin, Berlin, Germany
| | - Christian Rückert
- ‖Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Marco Oldiges
- ¶Forschungszentrum Jülich GmbH, Institute of Bio- and Geosciences, IBG-1: Biotechnology, Leo-Brandt-Straβe, 52428, Jülich, Germany
| | - Jörn Kalinowski
- ‖Center for Biotechnology (CeBiTec), Bielefeld University, Bielefeld, Germany
| | - Jozef Anné
- From the ‡KU Leuven, Rega Institute, Dpt of Microbiology and Immunology, Herestraat 49, B-3000 Leuven, Belgium
| | - Jan Kormanec
- §§Institute of Molecular Biology, Slovak Academy of Sciences, Dubravska cesta 21, 84551 Bratislava, Slovakia
| | - Kristel Bernaerts
- §KU Leuven, Bio- & chemical systems Technology, Reactor Engineering and Safety Section, Department of Chemical Engineering, Celestijnenlaan 200F, 3001 Leuven, Belgium
| | - Spyridoula Karamanou
- From the ‡KU Leuven, Rega Institute, Dpt of Microbiology and Immunology, Herestraat 49, B-3000 Leuven, Belgium
| | - Anastassios Economou
- From the ‡KU Leuven, Rega Institute, Dpt of Microbiology and Immunology, Herestraat 49, B-3000 Leuven, Belgium;
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Hamed MB, Vrancken K, Bilyk B, Koepff J, Novakova R, van Mellaert L, Oldiges M, Luzhetskyy A, Kormanec J, Anné J, Karamanou S, Economou A. Monitoring Protein Secretion in Streptomyces Using Fluorescent Proteins. Front Microbiol 2018; 9:3019. [PMID: 30581427 PMCID: PMC6292873 DOI: 10.3389/fmicb.2018.03019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/22/2018] [Indexed: 01/25/2023] Open
Abstract
Fluorescent proteins are a major cell biology tool to analyze protein sub-cellular topology. Here we have applied this technology to study protein secretion in the Gram-positive bacterium Streptomyces lividans TK24, a widely used host for heterologous protein secretion biotechnology. Green and monomeric red fluorescent proteins were fused behind Sec (SPSec) or Tat (SPTat) signal peptides to direct them through the respective export pathway. Significant secretion of fluorescent eGFP and mRFP was observed exclusively through the Tat and Sec pathways, respectively. Plasmid over-expression was compared to a chromosomally integrated spSec-mRFP gene to allow monitoring secretion under high and low level synthesis in various media. Fluorimetric detection of SPSec-mRFP recorded folded states, while immuno-staining detected even non-folded topological intermediates. Secretion of SPSec-mRFP is unexpectedly complex, is regulated independently of cell growth phase and is influenced by the growth regime. At low level synthesis, highly efficient secretion occurs until it is turned off and secretory preforms accumulate. At high level synthesis, the secretory pathway overflows and proteins are driven to folding and subsequent degradation. High-level synthesis of heterologous secretory proteins, whether secretion competent or not, has a drastic effect on the endogenous secretome, depending on their secretion efficiency. These findings lay the foundations of dissecting how protein targeting and secretion are regulated by the interplay between the metabolome, secretion factors and stress responses in the S. lividans model.
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Affiliation(s)
- Mohamed Belal Hamed
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Molecular Biology Department, National Research Centre, Dokki, Egypt
| | - Kristof Vrancken
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | | | - Joachim Koepff
- IBG-1: Biotechnology, Institute of Bio- and Geosciences, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Renata Novakova
- Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Lieve van Mellaert
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - Marco Oldiges
- IBG-1: Biotechnology, Institute of Bio- and Geosciences, Forschungszentrum Jülich GmbH, Jülich, Germany
| | - Andriy Luzhetskyy
- Helmholtz-Zentrum für Infektionsforschung GmbH, Braunschweig, Germany
| | - Jan Kormanec
- Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Jozef Anné
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - Spyridoula Karamanou
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - Anastassios Economou
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
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An efficient blue-white screening system for markerless deletions and stable integrations in Streptomyces chromosomes based on the blue pigment indigoidine biosynthetic gene bpsA. Appl Microbiol Biotechnol 2018; 102:10231-10244. [DOI: 10.1007/s00253-018-9393-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/04/2018] [Accepted: 09/09/2018] [Indexed: 12/14/2022]
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Tsolis KC, Tsare EP, Orfanoudaki G, Busche T, Kanaki K, Ramakrishnan R, Rousseau F, Schymkowitz J, Rückert C, Kalinowski J, Anné J, Karamanou S, Klapa MI, Economou A. Comprehensive subcellular topologies of polypeptides in Streptomyces. Microb Cell Fact 2018; 17:43. [PMID: 29544487 PMCID: PMC5853079 DOI: 10.1186/s12934-018-0892-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 03/08/2018] [Indexed: 11/10/2022] Open
Abstract
Background Members of the genus Streptomyces are Gram-positive bacteria that are used as important cell factories to produce secondary metabolites and secrete heterologous proteins. They possess some of the largest bacterial genomes and thus proteomes. Understanding their complex proteomes and metabolic regulation will improve any genetic engineering approach. Results Here, we performed a comprehensive annotation of the subcellular localization of the proteome of Streptomyces lividans TK24 and developed the Subcellular Topology of Polypeptides in Streptomyces database (SToPSdb) to make this information widely accessible. We first introduced a uniform, improved nomenclature that re-annotated the names of ~ 4000 proteins based on functional and structural information. Then protein localization was assigned de novo using prediction tools and edited by manual curation for 7494 proteins, including information for 183 proteins that resulted from a recent genome re-annotation and are not available in current databases. The S. lividans proteome was also linked with those of other model bacterial strains including Streptomyces coelicolor A3(2) and Escherichia coli K-12, based on protein homology, and can be accessed through an open web interface. Finally, experimental data derived from proteomics experiments have been incorporated and provide validation for protein existence or topology for 579 proteins. Proteomics also reveals proteins released from vesicles that bleb off the membrane. All export systems known in S. lividans are also presented and exported proteins assigned export routes, where known. Conclusions SToPSdb provides an updated and comprehensive protein localization annotation resource for S. lividans and other streptomycetes. It forms the basis for future linking to databases containing experimental data of proteomics, genomics and metabolomics studies for this organism. Electronic supplementary material The online version of this article (10.1186/s12934-018-0892-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Konstantinos C Tsolis
- Laboratory of Molecular Bacteriology, Dpt. of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Evridiki-Pandora Tsare
- Metabolic Engineering & Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece.,Department of General Biology, School of Medicine, University of Patras, Patras, Greece
| | - Georgia Orfanoudaki
- Institute of Molecular Biology and Biotechnology-FoRTH, P.O. Box 1385, Iraklio, Crete, Greece
| | - Tobias Busche
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33594, Bielefeld, Germany
| | - Katerina Kanaki
- Institute of Molecular Biology and Biotechnology-FoRTH, P.O. Box 1385, Iraklio, Crete, Greece
| | - Reshmi Ramakrishnan
- VIB-KU Leuven Center for Brain & Disease Research and VIB Switch Laboratory, Department for Cellular and Molecular Medicine, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Frederic Rousseau
- VIB-KU Leuven Center for Brain & Disease Research and VIB Switch Laboratory, Department for Cellular and Molecular Medicine, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Joost Schymkowitz
- VIB-KU Leuven Center for Brain & Disease Research and VIB Switch Laboratory, Department for Cellular and Molecular Medicine, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Christian Rückert
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33594, Bielefeld, Germany
| | - Jörn Kalinowski
- Center for Biotechnology (CeBiTec), Universität Bielefeld, 33594, Bielefeld, Germany
| | - Jozef Anné
- Laboratory of Molecular Bacteriology, Dpt. of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Spyridoula Karamanou
- Laboratory of Molecular Bacteriology, Dpt. of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
| | - Maria I Klapa
- Metabolic Engineering & Systems Biology Laboratory, Institute of Chemical Engineering Sciences, Foundation for Research and Technology-Hellas (FORTH/ICE-HT), Patras, Greece
| | - Anastassios Economou
- Laboratory of Molecular Bacteriology, Dpt. of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Leuven, Belgium.
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Hamed MB, Karamanou S, Ólafsdottir S, Basílio JSM, Simoens K, Tsolis KC, Van Mellaert L, Guðmundsdóttir EE, Hreggvidsson GO, Anné J, Bernaerts K, Fridjonsson OH, Economou A. Large-scale production of a thermostable Rhodothermus marinus cellulase by heterologous secretion from Streptomyces lividans. Microb Cell Fact 2017; 16:232. [PMID: 29274637 PMCID: PMC5741968 DOI: 10.1186/s12934-017-0847-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 12/13/2017] [Indexed: 01/28/2023] Open
Abstract
Background The gene encoding a thermostable cellulase of family 12 was previously isolated from a Rhodothermus marinus through functional screening. CelA is a protein of 260 aminoacyl residues with a 28-residue amino-terminal signal peptide. Mature CelA was poorly synthesized in some Escherichia coli strains and not at all in others. Here we present an alternative approach for its heterologous production as a secreted polypeptide in Streptomyces. Results CelA was successfully over-expressed as a secreted polypeptide in Streptomyces lividans TK24. To this end, CelA was fused C-terminally to the secretory signal peptide of the subtilisin inhibitor protein (Sianidis et al. in J Biotechnol. 121: 498–507, 2006) from Streptomyces venezuelae and a new cloning strategy developed. Optimal growth media and conditions that stall biomass production promote excessive CelA secretion. Under optimal growth conditions in nutrient broth medium, significant amounts of mature CelA (50–90 mg/L or 100–120 mg/g of dry cell weight) are secreted in the spent growth media after 7 days. A protocol to rapidly purify CelA to homogeneity from culture supernatants was developed and specific anti-sera raised against it. Biophysical, biochemical and immmuno-detection analyses indicate that the enzyme is intact, stable and fully functional. CelA is the most thermostable heterologous polypeptide shown to be secreted from S. lividans. Conclusion This study further validates and extends the use of the S. lividans platform for production of heterologous enzymes of industrial importance and extends it to active thermostable enzymes. This study contributes to developing a platform for poly-omics analysis of protein secretion in S. lividans. Electronic supplementary material The online version of this article (10.1186/s12934-017-0847-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mohamed Belal Hamed
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium.,Department of Molecular Biology, National Research Centre, Dokki, Giza, Egypt
| | - Spyridoula Karamanou
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium
| | | | - Joana Sofia Martins Basílio
- Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Louvain, Belgium
| | - Kenneth Simoens
- Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Louvain, Belgium
| | - Kostantinos C Tsolis
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Lieve Van Mellaert
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium
| | | | | | - Jozef Anné
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium
| | - Kristel Bernaerts
- Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, 3001, Louvain, Belgium
| | | | - Anastassios Economou
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Herestraat 49, 3000, Louvain, Belgium.
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Gómez S, López-Estepa M, Fernández FJ, Vega MC. Protein Complex Production in Alternative Prokaryotic Hosts. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 896:115-33. [PMID: 27165322 DOI: 10.1007/978-3-319-27216-0_8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Research for multiprotein expression in nonconventional bacterial and archaeal expression systems aims to exploit particular properties of "alternative" prokaryotic hosts that might make them more efficient than E. coli for particular applications, especially in those areas where more conventional bacterial hosts traditionally do not perform well. Currently, a wide range of products with clinical or industrial application have to be isolated from their native source, often microorganisms whose growth present numerous problems owing to very slow growth phenotypes or because they are unculturable under laboratory conditions. In those cases, transfer of the gene pathway responsible for synthesizing the product of interest into a suitable recombinant host becomes an attractive alternative solution. Despite many efforts dedicated to improving E. coli systems due to low cost, ease of use, and its dominant position as a ubiquitous expression host model, many alternative prokaryotic systems have been developed for heterologous protein expression mostly for biotechnological applications. Continuous research has led to improvements in expression yield through these non-conventional models, including Pseudomonas, Streptomyces and Mycobacterium as alternative bacterial expression hosts. Advantageous properties shared by these systems include low costs, high levels of secreted protein products and their safety of use, with non-pathogenic strains been commercialized. In addition, the use of extremophilic and halotolerant archaea as expression hosts has to be considered as a potential tool for the production of mammalian membrane proteins such as GPCRs.
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Affiliation(s)
- Sara Gómez
- Center for Biological Research, Spanish National Research Council (CIB-CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Miguel López-Estepa
- Center for Biological Research, Spanish National Research Council (CIB-CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - Francisco J Fernández
- Center for Biological Research, Spanish National Research Council (CIB-CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain
| | - M Cristina Vega
- Center for Biological Research, Spanish National Research Council (CIB-CSIC), Ramiro de Maeztu 9, 28040, Madrid, Spain.
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Guan C, Cui W, He X, Hu X, Xu J, Du G, Chen J, Zhou Z. Construction and development of a novel expression system of Streptomyces. Protein Expr Purif 2015; 113:17-22. [DOI: 10.1016/j.pep.2015.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 04/16/2015] [Accepted: 04/23/2015] [Indexed: 11/17/2022]
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Anné J, Vrancken K, Van Mellaert L, Van Impe J, Bernaerts K. Protein secretion biotechnology in Gram-positive bacteria with special emphasis on Streptomyces lividans. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1843:1750-61. [PMID: 24412306 DOI: 10.1016/j.bbamcr.2013.12.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 12/26/2013] [Accepted: 12/31/2013] [Indexed: 02/07/2023]
Abstract
Proteins secreted by Gram-positive bacteria are released into the culture medium with the obvious benefit that they usually retain their native conformation. This property makes these host cells potentially interesting for the production of recombinant proteins, as one can take full profit of established protocols for the purification of active proteins. Several state-of-the-art strategies to increase the yield of the secreted proteins will be discussed, using Streptomyces lividans as an example and compared with approaches used in some other host cells. It will be shown that approaches such as increasing expression and translation levels, choice of secretion pathway and modulation of proteins thereof, avoiding stress responses by changing expression levels of specific (stress) proteins, can be helpful to boost production yield. In addition, the potential of multi-omics approaches as a tool to understand the genetic background and metabolic fluxes in the host cell and to seek for new targets for strain and protein secretion improvement is discussed. It will be shown that S. lividans, along with other Gram-positive host cells, certainly plays a role as a production host for recombinant proteins in an economically viable way. This article is part of a Special Issue entitled: Protein trafficking and secretion in bacteria. Guest Editors: Anastassios Economou and Ross Dalbey.
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Affiliation(s)
- Jozef Anné
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, Laboratory of Molecular Bacteriology, Herestraat 49, box 1037, B-3000 Leuven, Belgium.
| | - Kristof Vrancken
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, Laboratory of Molecular Bacteriology, Herestraat 49, box 1037, B-3000 Leuven, Belgium.
| | - Lieve Van Mellaert
- Rega Institute for Medical Research, Katholieke Universiteit Leuven, Laboratory of Molecular Bacteriology, Herestraat 49, box 1037, B-3000 Leuven, Belgium.
| | - Jan Van Impe
- Chemical and Biochemical Process Technology and Control Section (BioTeC), Department of Chemical Engineering, KU Leuven, Willem de Croylaan 46 box 2423, B-3001 Leuven, Belgium.
| | - Kristel Bernaerts
- Chemical and Biochemical Process Technology and Control Section (BioTeC), Department of Chemical Engineering, KU Leuven, Willem de Croylaan 46 box 2423, B-3001 Leuven, Belgium.
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Miyazaki T, Noda S, Tanaka T, Kondo A. Hyper secretion of Thermobifida fusca β-glucosidase via a Tat-dependent signal peptide using Streptomyces lividans. Microb Cell Fact 2013; 12:88. [PMID: 24083334 PMCID: PMC3850917 DOI: 10.1186/1475-2859-12-88] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 09/28/2013] [Indexed: 12/02/2022] Open
Abstract
Background Protein production as secretory-form is a powerful tool in industrial enzyme production due to the simple purification procedure. Streptomyces lividans is a versatile host for secretory production of useful proteins. In order to expand the amount of secreted protein, signal peptide sequences, which encourage protein secretion from inside cell to extracellular environment, are one of the most significant factors. In this study, we focused on Streptomyces lividans as a host strain to secrete useful proteins, and screened for signal peptides from the biomass-degradation enzymes derived from Thermobifida fusca YX and S. lividans. Results Three candidate signal peptides were isolated and evaluated for their protein secretion ability using β-glucosidase derived from T. fusca YX, which is a non-secreted protein, as a model protein. Using S. lividans xylanase C signal peptide, the amount of produced the β-glucosidase reached 10 times as much as that when using Streptomyces cinnamoneus phospholipase D signal peptide, which was identified as a versatile signal peptide in our previous report. In addition, the introduction of the β-glucosidase fused to xylanase C signal peptide using two kinds of plasmid, pUC702 and pTYM18, led to further protein secretion, and the maximal level of produced the β-glucosidase increased up to 17 times (1.1 g/l) compared to using only pUC702 carrying the β-glucosidase fused to S. cinnamoneus phospholipase D signal peptide. Conclusion In the present study, we focused on signal peptide sequences derived from biomass degradation enzymes, which are usually secreted into the culture supernatant, and screened for signal peptides leading to effective protein secretion. Using the signal peptides, the hyper-protein secretion system was successfully demonstrated for the cytoplasmic β-glucosidase.
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Affiliation(s)
- Takaya Miyazaki
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
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12
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Transcriptional characterisation of the negative effect exerted by a deficiency in type II signal peptidase on extracellular protein secretion in Streptomyces lividans. Appl Microbiol Biotechnol 2013; 97:10069-80. [DOI: 10.1007/s00253-013-5219-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 08/26/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
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13
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Ayala JC, Pimienta E, Rodríguez C, Anné J, Vallín C, Milanés MT, King-Batsios E, Huygen K, Van Mellaert L. Use of Strep-tag II for rapid detection and purification of Mycobacterium tuberculosis recombinant antigens secreted by Streptomyces lividans. J Microbiol Methods 2013; 94:192-8. [DOI: 10.1016/j.mimet.2013.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/31/2013] [Accepted: 06/01/2013] [Indexed: 10/26/2022]
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14
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Abstract
The non-essential Corynebacterium glutamicum sigma factor, sigB, modulates global gene expression during the transition from exponential growth to the stationary phase. Utilizing a signal peptide derived from C. glutamicum R CgR_0949, a sigB disruption mutant able to secrete 3- to 5-fold more green fluorescence protein (GFP) and α-amylase than the wild type strain was isolated. The signal peptide selectively enabled the mutant to produce greater amounts of both proteins, which were in turn secreted in culture medium in greater quantities than previously acknowledged. A peak GFP productivity of 2.8 g/l was attained, representing the highest GFP productivity reported in C. glutamicum to date. CgR_0949 signal sequence length (30 residues), type (Tat) or the target protein identity (GFP or α-amylase) had no measurable effect on the magnitude of the protein accumulation and consequent secretion. It therefore follows that actual experimentation remains the fastest way to identify suitable signal sequences in C. glutamicum. More secretion studies may reveal even greater secretion productivity by C. glutamicum and consequently present an attractive avenue to further enhance the utility of C. glutamicum as an industrial workhorse.
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Gullón S, Vicente RL, Mellado RP. A novel two-component system involved in secretion stress response in Streptomyces lividans. PLoS One 2012; 7:e48987. [PMID: 23155440 PMCID: PMC3498368 DOI: 10.1371/journal.pone.0048987] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Accepted: 10/03/2012] [Indexed: 11/30/2022] Open
Abstract
Background Misfolded proteins accumulating outside the bacterial cytoplasmic membrane can interfere with the secretory machinery, hence the existence of quality factors to eliminate these misfolded proteins is of capital importance in bacteria that are efficient producers of secretory proteins. These bacteria normally use a specific two-component system to respond to the stress produced by the accumulation of the misfolded proteins, by activating the expression of HtrA-like proteases to specifically eliminate the incorrectly folded proteins. Methodology/Principal Findings Overproduction of alpha-amylase in S. lividans causing secretion stress permitted the identification of a two-component system (SCO4156-SCO4155) that regulates three HtrA-like proteases which appear to be involved in secretion stress response. Mutants in each of the genes forming part of the two-genes operon that encodes the sensor and regulator protein components accumulated misfolded proteins outside the cell, strongly suggesting the involvement of this two-component system in the S. lividans secretion stress response. Conclusions/Significance To our knowledge this is the first time that a specific secretion stress response two-component system is found to control the expression of three HtrA-like protease genes in S. lividans, a bacterium that has been repeatedly used as a host for the synthesis of homologous and heterologous secretory proteins of industrial application.
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16
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Lule I, Maldonado B, D’Huys PJ, Van Mellaert L, Van Impe J, Bernaerts K, Anné J. On the influence of overexpression of phosphoenolpyruvate carboxykinase in Streptomyces lividans on growth and production of human tumour necrosis factor-alpha. Appl Microbiol Biotechnol 2012; 96:367-72. [DOI: 10.1007/s00253-012-4182-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 05/10/2012] [Accepted: 05/13/2012] [Indexed: 11/27/2022]
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17
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Recombinant protein production and streptomycetes. J Biotechnol 2012; 158:159-67. [DOI: 10.1016/j.jbiotec.2011.06.028] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 06/17/2011] [Accepted: 06/22/2011] [Indexed: 11/21/2022]
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18
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19
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Mellado RP. Summing up particular features of protein secretion in Streptomyces lividans. World J Microbiol Biotechnol 2011. [DOI: 10.1007/s11274-011-0709-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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20
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Zhu Y, Wang L, Du Y, Wang S, Yu T, Hong B. Heterologous expression of human interleukin-6 in Streptomyces lividans TK24 using novel secretory expression vectors. Biotechnol Lett 2010; 33:253-61. [DOI: 10.1007/s10529-010-0428-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2010] [Accepted: 09/23/2010] [Indexed: 11/24/2022]
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21
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D'Huys PJ, Lule I, Van Hove S, Vercammen D, Wouters C, Bernaerts K, Anné J, Van Impe JFM. Amino acid uptake profiling of wild type and recombinant Streptomyces lividans TK24 batch fermentations. J Biotechnol 2010; 152:132-43. [PMID: 20797416 DOI: 10.1016/j.jbiotec.2010.08.011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 08/12/2010] [Accepted: 08/17/2010] [Indexed: 11/19/2022]
Abstract
Streptomyces lividans is considered an interesting host for the secretory production of heterologous proteins. To obtain a good secretion yield of heterologous proteins, the availability of suitable nitrogen sources in the medium is required. Often, undefined mixtures of amino acids are used to improve protein yields. However, the understanding of amino acid utilization as well as their contribution to the heterologous protein synthesis is poor. In this paper, amino acid utilization by wild type and recombinant S. lividans TK24 growing on a minimal medium supplemented with casamino acids is profiled by intensive analysis of the exometabolome (metabolic footprint) as a function of time. Dynamics of biomass, substrates, by-products and heterologous protein are characterized, analyzed and compared. As an exemplary protein mouse Tumor Necrosis Factor Alpha (mTNF-α) is considered. Results unveil preferential glutamate and aspartate assimilation, together with glucose and ammonium, but the associated high biomass growth rate is unfavorable for protein production. Excretion of organic acids as well as alanine is observed. Pyruvate and alanine overflow point at an imbalance between carbon and nitrogen catabolism and biosynthetic fluxes. Lactate secretion is probably related to clump formation. Heterologous protein production induces a slowdown in growth, denser clump formation and a shift in metabolism, as reflected in the altered substrate requirements and overflow pattern. Besides glutamate and aspartate, most amino acids are catabolized, however, their exact contribution in heterologous protein production could not be seized from macroscopic quantities. The metabolic footprints presented in this paper provide a first insight into the impact and relevance of amino acids on biomass growth and protein production. Type and availability of substrates together with biomass growth rate and morphology affect the protein secretion efficiency and should be optimally controlled, e.g., by appropriate medium formulation and substrate dosing. Overflow metabolism as well as high biomass growth rates must be avoided because they reduce protein yields. Further investigation of the intracellular metabolic fluxes should be conducted to fully unravel and identify ways to relieve the metabolic burden of plasmid maintenance and heterologous protein production and to prevent overflow.
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Affiliation(s)
- Pieter-Jan D'Huys
- Chemical and Biochemical Process Technology and Control Section (BioTeC), Department of Chemical Engineering, Katholieke Universiteit Leuven, Willem de Croylaan 46, B-3001 Leuven, Belgium
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22
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Adaptation of the highly productive T7 expression system to Streptomyces lividans. Appl Environ Microbiol 2009; 76:967-70. [PMID: 20023105 DOI: 10.1128/aem.02186-09] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Streptomyces lividans is a Gram-positive bacterium known for its remarkable secretion efficiency and low extracellular protease activity. In the present work, we adapted the highly productive T7 expression system to S. lividans. A codon-optimized T7 RNA polymerase gene was chromosomally integrated, and a bifunctional T7 expression vector was constructed.
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23
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Pimienta E, Ayala JC, Rodríguez C, Ramos A, Van Mellaert L, Vallín C, Anné J. Recombinant production of Streptococcus equisimilis streptokinase by Streptomyces lividans. Microb Cell Fact 2007; 6:20. [PMID: 17610745 PMCID: PMC1936427 DOI: 10.1186/1475-2859-6-20] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2007] [Accepted: 07/05/2007] [Indexed: 11/24/2022] Open
Abstract
Background Streptokinase (SK) is a potent plasminogen activator with widespread clinical use as a thrombolytic agent. It is naturally secreted by several strains of beta-haemolytic streptococci. The low yields obtained in SK production, lack of developed gene transfer methodology and the pathogenesis of its natural host have been the principal reasons to search for a recombinant source for this important therapeutic protein. We report here the expression and secretion of SK by the Gram-positive bacterium Streptomyces lividans. The structural gene encoding SK was fused to the Streptomyces venezuelae CBS762.70 subtilisin inhibitor (vsi) signal sequence or to the Streptomyces lividans xylanase C (xlnC) signal sequence. The native Vsi protein is translocated via the Sec pathway while the native XlnC protein uses the twin-arginine translocation (Tat) pathway. Results SK yield in the spent culture medium of S. lividans was higher when the Sec-dependent signal peptide mediates the SK translocation. Using a 1.5 L fermentor, the secretory production of the Vsi-SK fusion protein reached up to 15 mg SK/l. SK was partially purified from the culture supernatant by DEAE-Sephacel chromatography. A 44-kDa degradation product co-eluted with the 47-kDa mature SK. The first amino acid residues of the S. lividans-produced SK were identical with those of the expected N-terminal sequence. The Vsi signal peptide was thus correctly cleaved off and the N-terminus of mature Vsi-SK fusion protein released by S. lividans remained intact. This result also implicates that the processing of the recombinant SK secreted by Streptomyces probably occurred at its C-terminal end, as in its native host Streptococcus equisimilis. The specific activity of the partially purified Streptomyces-derived SK was determined at 2661 IU/mg protein. Conclusion Heterologous expression of Streptococcus equisimilis ATCC9542 skc-2 in Streptomyces lividans was successfully achieved. SK can be translocated via both the Sec and the Tat pathway in S. lividans, but yield was about 30 times higher when the SK was fused to the Sec-dependent Vsi signal peptide compared to the fusion with the Tat-dependent signal peptide of S. lividans xylanase C. Small-scale fermentation led to a fourfold improvement of secretory SK yield in S. lividans compared to lab-scale conditions. The partially purified SK showed biological activity. Streptomyces lividans was shown to be a valuable host for the production of a world-wide important, biopharmaceutical product in a bio-active form.
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Affiliation(s)
- Elsa Pimienta
- Laboratorio de Genética, Departamento de Investigaciones Biomédicas, Centro de Química Farmacéutica. Ciudad de la Habana, Cuba
| | - Julio C Ayala
- Laboratorio de Genética, Departamento de Investigaciones Biomédicas, Centro de Química Farmacéutica. Ciudad de la Habana, Cuba
| | - Caridad Rodríguez
- Laboratorio de Genética, Departamento de Investigaciones Biomédicas, Centro de Química Farmacéutica. Ciudad de la Habana, Cuba
| | - Astrid Ramos
- Laboratorio de Genética, Departamento de Investigaciones Biomédicas, Centro de Química Farmacéutica. Ciudad de la Habana, Cuba
| | - Lieve Van Mellaert
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
| | - Carlos Vallín
- Laboratorio de Genética, Departamento de Investigaciones Biomédicas, Centro de Química Farmacéutica. Ciudad de la Habana, Cuba
| | - Jozef Anné
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, B-3000 Leuven, Belgium
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24
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De Keersmaeker S, Vrancken K, Van Mellaert L, Anné J, Geukens N. The Tat pathway in Streptomyces lividans: interaction of Tat subunits and their role in translocation. Microbiology (Reading) 2007; 153:1087-1094. [PMID: 17379717 DOI: 10.1099/mic.0.2006/003053-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The twin-arginine translocation (Tat) pathway transports folded proteins across bacterial cytoplasmic membranes. The Tat system of Streptomyces lividans consists of TatA, TatB and TatC, unlike most Gram-positive bacteria, which only have TatA and TatC subunits. Interestingly, in S. lividans TatA and TatB are localized in both the cytoplasm and the membrane. In the cytoplasm soluble TatA and TatB were found as monomers or as part of a hetero-oligomeric complex. Further analysis showed that specific information for recognition of the precursor by the soluble Tat components is mainly present in the twin-arginine signal peptide. Study of the role of the Tat subunits in complex assembly and stability in the membrane and cytoplasm showed that TatB stabilizes TatC whereas a key role in driving Tat complex assembly is suggested for TatC. Finally, by analysis of the oligomeric properties of TatA in the membrane of S. lividans and study of the affinity of membrane-embedded TatA for Tat/Sec precursors, a role for TatA as a translocator is postulated.
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Affiliation(s)
- Sophie De Keersmaeker
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Kristof Vrancken
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Lieve Van Mellaert
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Jozef Anné
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Nick Geukens
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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25
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Ayadi DZ, Chouayekh H, Mhiri S, Zerria K, Fathallah DM, Bejar S. Expression by streptomyces lividans of the rat alpha integrin CD11b A-domain as a secreted and soluble recombinant protein. J Biomed Biotechnol 2006; 2007:54327. [PMID: 17497024 PMCID: PMC1791067 DOI: 10.1155/2007/54327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2006] [Revised: 09/22/2006] [Accepted: 10/24/2006] [Indexed: 11/17/2022] Open
Abstract
We already reported the use of a long synthetic signal peptide (LSSP) to secrete the Streptomyces sp. TO1 amylase by Streptomyces lividans strain. We herein report the expression and secretion of the rat CD11b A-domain using the same LSSP and S. lividans as host strain. We have used the Escherichia coli/Streptomyces shuttle vector pIJ699 for the cloning of the A-domain DNA sequence downstream of LSSP and under the control of the constitutive ermE-up promoter of Streptomyces erythraeus. Using this construct and S. lividans as a host strain, we achieved the expression of 8 mg/L of soluble secreted recombinant form of the A-domain of the rat leukocyte β2 integrin CD11/CD18 alpha M subunit (CD11b). This secreted recombinant CD11b A-domain reacted with a function blocking antibody showing that this protein is properly folded and probably functional. These data support the capability of Streptomyces to produce heterologous recombinant proteins as soluble secreted form using the “LSSP” synthetic signal peptide.
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Affiliation(s)
- Dorra Zouari Ayadi
- Laboratory of Enzymes and Metabolites of Prokaryotes, Center of Biotechnology of Sfax, BP “K”, 3038 Sfax, Tunisia
| | - Hichem Chouayekh
- Laboratory of Enzymes and Metabolites of Prokaryotes, Center of Biotechnology of Sfax, BP “K”, 3038 Sfax, Tunisia
| | - Sonda Mhiri
- Laboratory of Enzymes and Metabolites of Prokaryotes, Center of Biotechnology of Sfax, BP “K”, 3038 Sfax, Tunisia
| | - Khaled Zerria
- Molecular Biotechnology Group, Laboratory of Immunology, Institute Pasteur of Tunis, BP 74, 1002 Belvédère, Tunis, Tunisia
| | - Dahmani M. Fathallah
- Molecular Biotechnology Group, Laboratory of Immunology, Institute Pasteur of Tunis, BP 74, 1002 Belvédère, Tunis, Tunisia
| | - Samir Bejar
- Laboratory of Enzymes and Metabolites of Prokaryotes, Center of Biotechnology of Sfax, BP “K”, 3038 Sfax, Tunisia
- *Samir Bejar:
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26
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De Keersmaeker S, Vrancken K, Van Mellaert L, Lammertyn E, Anné J, Geukens N. Evaluation of TatABC overproduction on Tat- and Sec-dependent protein secretion in Streptomyces lividans. Arch Microbiol 2006; 186:507-12. [PMID: 16944098 DOI: 10.1007/s00203-006-0161-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Revised: 05/17/2006] [Accepted: 07/28/2006] [Indexed: 11/24/2022]
Abstract
The majority of bacterial proteins are exported across the cytoplasmic membrane via the Sec pathway, but also the more recently discovered twin-arginine translocation (Tat) route seems to play an important role for protein secretion in Streptomyces lividans in whose genome tatA, tatB and tatC have been identified. In the present work we showed that simultaneous overproduction of TatABC improved the Tat-dependent secretion capacity as could be concluded from the increased amount of secreted xylanase C, an exclusive Tat-dependent substrate. This result demonstrates that next to the availability of energy to drive secretion, also the number of translocases can be rate-limiting for Tat-dependent secretion. On the other hand, tatABC overexpression was found to diminish secretion of the Sec-dependent proteins xylanase B and subtilisin inhibitor in S. lividans. These results reveal cross-talk between both pathways in S. lividans.
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Affiliation(s)
- Sophie De Keersmaeker
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000, Leuven, Belgium
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27
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Escutia MR, Val G, Palacín A, Geukens N, Anné J, Mellado RP. Compensatory effect of the minorStreptomyces lividans type I signal peptidases on the SipY major signal peptidase deficiency as determined by extracellular proteome analysis. Proteomics 2006; 6:4137-46. [PMID: 16786486 DOI: 10.1002/pmic.200500927] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The developmentally complex bacterium Streptomyces lividans has the ability to produce and secrete a significant amount of protein and possesses four different type I signal peptidase genes (sipW, sipX, sipY and sipZ) that are unusually clustered in its chromosome. 2-DE and subsequent MS of extracellular proteins showed that proteins with typical export signals for type I and type II signal peptidases are the main components of the S. lividans secretome. Secretion of extracellular proteins is severely reduced in a strain deficient in the major type I signal peptidase (SipY). This deficiency was efficiently compensated by complementation with any of the other three signal peptidases as deduced from a comparison of the corresponding 2-D PAGE patterns with that of the wild-type strain.
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Affiliation(s)
- Marta R Escutia
- Centro Nacional de Biotecnología, Campus de la Universidad Autónoma, Cantoblanco, Madrid, Spain
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28
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Vallin C, Ramos A, Pimienta E, Rodríguez C, Hernández T, Hernández I, Del Sol R, Rosabal G, Van Mellaert L, Anné J. Streptomyces as host for recombinant production of Mycobacterium tuberculosis proteins. Tuberculosis (Edinb) 2006; 86:198-202. [PMID: 16644285 DOI: 10.1016/j.tube.2006.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2006] [Accepted: 02/27/2006] [Indexed: 11/30/2022]
Abstract
The 45/47 kDa APA protein (Rv1860) of Mycobacterium tuberculosis was produced by Streptomyces lividans. The recombinant protein could be recovered from the culture medium of an S. lividans clone containing the apa gene under control of the promoter and signal sequence of the Streptomyces coelicolor agarase gene. The recombinant protein production was further scaled-up using fermentation conditions. The APA protein was subsequently purified from the culture supernatant by means of immunochromatography. About 80 mg of recombinant protein were obtained per liter of culture media. In vivo tests with the APA protein purified from S. lividans TK24/pRGAPA1 revealed that the recombinant protein was antigenic and could induce high titers of specific antibodies in the mouse biological model. Results obtained concerning heterologous production of APA, its immunogenic and antigenic capacity, demonstrated the potential of S. lividans as a valuable host for the production of recombinant proteins from M. tuberculosis.
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Affiliation(s)
- Carlos Vallin
- Department of Biomedical Research, Center of Pharmaceutical Chemistry, Atabey, Playa, Havana, Cuba.
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29
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Nisole A, Lussier FX, Morley KL, Shareck F, Kazlauskas RJ, Dupont C, Pelletier JN. Extracellular production of Streptomyces lividans acetyl xylan esterase A in Escherichia coli for rapid detection of activity. Protein Expr Purif 2006; 46:274-84. [PMID: 16256365 DOI: 10.1016/j.pep.2005.09.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2005] [Revised: 09/02/2005] [Accepted: 09/08/2005] [Indexed: 11/20/2022]
Abstract
Acetyl xylan esterase A (AxeA) from Streptomyces lividans belongs to a large family of industrially relevant polysaccharide esterases. AxeA and its truncated form containing only the catalytically competent domain, AxeA(tr), catalyze both the deacetylation of xylan and the N-deacetylation of chitosan. This broad substrate specificity lends additional interest to their characterization and production. Here, we report three systems for extracellular production of AxeA(tr): secretion from the native host S. lividans with the native signal peptide, extracellular production in Escherichia coli with the native signal peptide, and in E. coli with the OmpA signal peptide. Over five to seven days of a shake flask culture, the native host S. lividans with the native signal peptide secreted AxeA(tr) into the extracellular medium in high yield (388 mg/L) with specific activity of 19 U/mg corresponding to a total of 7000 U/L. Over one day of shake flask culture, E. coli with the native secretion signal peptide produced 84-fold less in the extracellular medium (4.6 mg/L), but the specific activity was higher (100 U/mg) corresponding to a total of 460 U/L. A similar E. coli culture using the OmpA signal peptide, produced 10mg/L with a specific activity of 68 U/mg, corresponding to a total of 680 U/L. In 96-well microtiter plates, extracellular production with E. coli gave approximately 30 and approximately 86 microg/mL in S. lividans. Expression in S. lividans with the native signal peptide is best for high level production, while expression in E. coli using the OmpA secretion signal peptide is best for high-throughput expression and screening of variants in microtiter plate format.
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Affiliation(s)
- Audrey Nisole
- Département de chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Qué., Canada H3C 3J7
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30
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Sianidis G, Pozidis C, Becker F, Vrancken K, Sjoeholm C, Karamanou S, Takamiya-Wik M, van Mellaert L, Schaefer T, Anné J, Economou A. Functional large-scale production of a novel Jonesia sp. xyloglucanase by heterologous secretion from Streptomyces lividans. J Biotechnol 2006; 121:498-507. [PMID: 16168511 DOI: 10.1016/j.jbiotec.2005.08.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2005] [Revised: 07/13/2005] [Accepted: 08/02/2005] [Indexed: 10/25/2022]
Abstract
The gene encoding a novel xyloglucanase (Xeg) belonging to family 74 glycoside hydrolases was isolated from a Jonesia sp. strain through functional screening in Escherichia coli. The encoded xyloglucanase is a protein of 972 aminoacyl residues with a 23 residue aminoterminal signal peptide. Over-expression of Xeg in B. subtilis or E. coli failed. In contrast, Xeg was successfully over-expressed and secreted in Streptomyces lividans TK24. To this end Xeg was fused C-terminally to the secretory signal peptide of the subtilisin inhibitor protein (vsi) from Streptomyces venezuelae. The native Xeg signal peptide derived from Jonesia sp. is only poorly functional in S. lividans. Under optimal growth conditions, significant amounts of mature Xeg (100-150 mg/l) are secreted in the spent growth media. A protocol to rapidly purify Xeg to homogeneity from culture supernatants was developed. Biophysical and biochemical analyses indicate that the enzyme is intact, stable and fully functional. Xeg is the longest heterologous polypeptide shown to be secreted from S. lividans. This study further validates use of S. lividans for production of active heterologous proteins and demonstrates that heterologous polypeptides of up to 100 kDa are also tractable by this system.
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Affiliation(s)
- Giorgos Sianidis
- Institute of Molecular Biology and Biotechnology-FORTH and Department of Biology, University of Crete, P.O. Box 1527, Iraklio-Crete 71110, Greece
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De Keersmaeker S, Van Mellaert L, Lammertyn E, Vrancken K, Anné J, Geukens N. Functional analysis of TatA and TatB in Streptomyces lividans. Biochem Biophys Res Commun 2005; 335:973-82. [PMID: 16111662 DOI: 10.1016/j.bbrc.2005.07.165] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2005] [Accepted: 07/29/2005] [Indexed: 11/20/2022]
Abstract
Recently, genes encoding TatA, TatB, and TatC homologues were identified in Streptomyces lividans and the functionality of the twin-arginine translocation (Tat) pathway was demonstrated. Previously, we have shown that TatC is indispensable for Tat-dependent secretion in S. lividans. In the present work, we demonstrate that as TatB, S. lividans TatA is important but not essential for efficient secretion of xylanase C and tyrosinase. The results presented here indicate that in the presence of TatC, still partially functional translocation systems composed of TatAC or TatBC can be formed, suggesting that TatA and TatB have at least partially overlapping activities. However, the dissimilar effect caused by a tatA deletion or a tatB deletion on Tat-dependent secretion together with the fact that TatA cannot fully functionally substitute TatB and vice versa indicates that in S. lividans TatA and TatB are not functionally equivalent. Interestingly, soluble GST-tagged TatA and TatB were able to specifically bind Tat-dependent preproteins. The ability to bind Tat-dependent preproteins together with their cytoplasmic localization in S. lividans strongly suggests that both TatA and TatB, independently or associated, serve to recruit Tat-dependent preproteins to the translocase.
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Affiliation(s)
- Sophie De Keersmaeker
- Laboratory of Bacteriology, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium.
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Barbé S, Van Mellaert L, Theys J, Geukens N, Lammertyn E, Lambin P, Anné J. Secretory production of biologically active rat interleukin-2 by Clostridium acetobutylicum DSM792 as a tool for anti-tumor treatment. FEMS Microbiol Lett 2005; 246:67-73. [PMID: 15869963 DOI: 10.1016/j.femsle.2005.03.037] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2005] [Revised: 03/18/2005] [Accepted: 03/21/2005] [Indexed: 10/25/2022] Open
Abstract
The search for effective means of selectively delivering high therapeutic doses of anti-cancer agents to tumors has explored a variety of systems in the last decade. The ability of intravenously injected clostridial spores to infiltrate and thence selectively germinate in the hypoxic regions of solid tumors is exquisitely specific, making this system an interesting addition to the anti-cancer therapy arsenal. To increase the number of therapeutic proteins potentially useful for cancer treatment we have tested the possibility of Clostridium acetobutylicum to secrete rat interleukin-2 (rIL2). Therefore, rIL2 cDNA was placed under the control of the endo-beta-1,4-glucanase promoter and signal sequence of C. saccharobutylicum. Recombinant C. acetobutylicum containing the relevant construct secreted up to 800 microgl(-1) biologically active rIL2. The obtained yield should be sufficient to provoke in vivo effects.
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Affiliation(s)
- Sofie Barbé
- Laboratory of Bacteriology, Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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Hong B, Wang L, Lammertyn E, Geukens N, Van Mellaert L, Li Y, Anné J. Inactivation of the 20S proteasome in Streptomyces lividans and its influence on the production of heterologous proteins. Microbiology (Reading) 2005; 151:3137-3145. [PMID: 16151224 DOI: 10.1099/mic.0.28034-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Proteasomes are self-compartmentalizing proteases first discovered in eukaryotes but also occurring in archaea and in bacteria belonging to the order Actinomycetales. In bacteria, proteasomes have so far no known function. In order to evaluate the influence of the 20S proteasome on the production of heterologous proteins by Streptomyces lividans TK24, the production of a number of heterologous proteins, including soluble human tumour necrosis factor receptor II (shuTNFRII) and salmon calcitonin (sCT), was compared with the wild-type TK24, a proteasome-deficient mutant designated PRO41 and a strain complemented for the disrupted proteasome genes (strain PRO41R). S. lividans cells lacking intact proteasome genes are phenotypically indistinguishable from the wild-type or the complemented strain containing functional proteasomes. Using the expression and secretion signals of the subtilisin inhibitor of Streptomyces venezuelae CBS762.70 (Vsi) for shuTNFRII and those of tyrosinase of Streptomyces antibioticus (MelC1) for the production of sCT, both proteins were secreted in significantly higher amounts in the strain PRO41 than in the wild-type S. lividans TK24 or the complemented strain PRO41R. However, the secretion of other heterologous proteins such as shuTNFRI was not enhanced in the proteasome-deficient strain. This suggests that S. lividans TK24 can degrade some heterologous proteins in a proteasome-dependent fashion. The proteasome-deficient strain may therefore be useful for the efficient production of these heterologous proteins.
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Affiliation(s)
- Bin Hong
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical University, No. 1 Tiantanxili, Beijing 100050, China
| | - Lifei Wang
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical University, No. 1 Tiantanxili, Beijing 100050, China
| | - Elke Lammertyn
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Nick Geukens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Lieve Van Mellaert
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
| | - Yuan Li
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical University, No. 1 Tiantanxili, Beijing 100050, China
| | - Jozef Anné
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000 Leuven, Belgium
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Schaerlaekens K, Lammertyn E, Geukens N, De Keersmaeker S, Anné J, Van Mellaert L. Comparison of the Sec and Tat secretion pathways for heterologous protein production by Streptomyces lividans. J Biotechnol 2004; 112:279-88. [PMID: 15313005 DOI: 10.1016/j.jbiotec.2004.05.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Revised: 05/07/2004] [Accepted: 05/11/2004] [Indexed: 10/26/2022]
Abstract
Streptomyces is an interesting host for the secretory production of recombinant proteins because of its natural ability to secrete high levels of active proteins into the culture broth and the availability of extensive fermentation knowledge. In bacterial expression systems, heterologous protein secretion has, so far, almost exclusively been investigated using signal peptides that direct the secretion to the Sec pathway. In this study, we assessed the possibility of the Streptomyces lividans twin-arginine translocation (Tat) pathway to secrete the human proteins tumor necrosis factor (TNF) alpha and interleukin (IL) 10 by fusing the coding sequences of mature hTNFalpha and hIL10 to the twin-arginine signal peptides of S. lividans xylanase C (XlnC) and Streptomyces antibioticus tyrosinase. Both proteins were secreted and this secretion was blocked in the DeltatatB and DeltatatC single mutants, indicating that the transport of hTNFalpha and hIL10 could be directed through the Tat pathway. Secretion levels of hTNFalpha and hIL10, however, were lower for Tat-dependent than for Sec-dependent transport using the Sec-dependent signal peptide of the Streptomyces venezuelae subtilisin inhibitor. Surprisingly, Sec-dependent transport was enhanced in the tatB deletion strain. This was especially interesting in the case of hIL10, where Sec-dependent transport of hIL10 was at least 15 times higher in the DeltatatB mutant than in the wild-type strain.
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Affiliation(s)
- Kristien Schaerlaekens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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Geukens N, Frederix F, Reekmans G, Lammertyn E, Van Mellaert L, Dehaen W, Maes G, Anné J. Analysis of type I signal peptidase affinity and specificity for preprotein substrates. Biochem Biophys Res Commun 2004; 314:459-67. [PMID: 14733928 DOI: 10.1016/j.bbrc.2003.12.122] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Type I signal peptidases (SPases) are membrane-bound endopeptidases responsible for the catalytic cleavage of signal peptides from secretory proteins. Here, we analysed the interaction between a bacterial type I SPase and preprotein substrates using surface plasmon resonance. The use of a home-made biosensor surface based on a mixed self-assembled monolayer of thiols on gold allowed qualitative and kinetic analysis. In vitro binding of purified preproteins to a covalently immobilised bacterial SPase was found to be rather efficient (apparent K(D)=10(-7)-10(-8)M). The signal peptide was shown to be a prerequisite for SPase binding and the nature of the mature part of the preprotein significantly affected SPase binding affinity. The developed biosensor containing immobilised SPase is of great importance for analysis of specificity at substrate binding level and for drug screening. In fact, this is the first report of a membrane protein that was covalently attached to a biosensor surface and that retained binding capacity.
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Affiliation(s)
- Nick Geukens
- Laboratory of Bacteriology, Rega Institute, K.U.Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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Schaerlaekens K, Van Mellaert L, Lammertyn E, Geukens N, Anné J. The importance of the Tat-dependent protein secretion pathway in Streptomyces as revealed by phenotypic changes in tat deletion mutants and genome analysis. Microbiology (Reading) 2004; 150:21-31. [PMID: 14702394 DOI: 10.1099/mic.0.26684-0] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Streptomyces are Gram-positive soil bacteria that are used industrially, not only as a source of medically important natural compounds, but also as a host for the secretory production of a number of heterologous proteins. A good understanding of the different secretion processes in this organism is therefore of major importance. The functionality of the recently discovered bacterial twin-arginine translocation (Tat) pathway has already been shown in Streptomyces lividans. Here, the aberrant phenotype of S. lividans DeltatatB and DeltatatC single mutants is described. Both mutants are characterized by a dispersed growth in liquid medium, an impaired morphological differentiation on solid medium and growth retardation. To reveal the extent to which the Tat pathway is used in Streptomyces, putative Tat-dependent precursor proteins of Streptomyces coelicolor, a very close relative of S. lividans, and of Streptomyces avermitilis, of which the genomes have been completely sequenced, were identified by a modified version of the TATFIND computer program designed by Rose and colleagues [Rose, R. W., Brüser, T., Kissinger, J. C. & Pohlschröder, M. (2002). Mol Microbiol 45, 943-950]. A list of 230 precursor proteins was obtained; this is the highest number of putative Tat substrates found in any genome so far. In addition to the Streptomyces antibioticus tyrosinase, it was also demonstrated that the secretion of the S. lividans xylanase C is Tat-dependent. The predicted Tat substrates belong to a variety of protein classes, with a high number of proteins functioning in degradation of macromolecules, in binding and transport, and in secondary metabolism. Only a minor fraction of the proteins seem to bind a cofactor. The aberrant phenotype of the DeltatatB and DeltatatC mutants together with the high number of putative Tat-dependent substrates suggests that the Streptomyces Tat pathway has a distinct and more important role in protein secretion than in most other bacteria.
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Affiliation(s)
- Kristien Schaerlaekens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Lieve Van Mellaert
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Elke Lammertyn
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Nick Geukens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Jozef Anné
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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37
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Palacín A, Parro V, Geukens N, Anné J, Mellado RP. SipY Is the Streptomyces lividans type I signal peptidase exerting a major effect on protein secretion. J Bacteriol 2002; 184:4875-80. [PMID: 12169613 PMCID: PMC135301 DOI: 10.1128/jb.184.17.4875-4880.2002] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2001] [Accepted: 06/10/2002] [Indexed: 11/20/2022] Open
Abstract
Most bacteria contain one type I signal peptidase (SPase) for cleavage of signal peptides from secreted proteins. The developmental complex bacterium Streptomyces lividans has the ability to produce and secrete a significant amount of proteins and has four different type I signal peptidases genes (sipW, sipX, sipY, and sipZ) unusually clustered in its chromosome. Functional analysis of the four SPases was carried out by phenotypical and molecular characterization of the different individual sip mutants. None of the sip genes seemed to be essential for bacterial growth. Analysis of total extracellular proteins indicated that SipY is likely to be the major S. lividans SPase, since the sipY mutant strain is highly deficient in overall protein secretion and extracellular protease production, showing a delayed sporulation phenotype when cultured in solid medium.
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Affiliation(s)
- Arantxa Palacín
- Centro Nacional de Biotecnología, Campus de la Universidad Autónoma, Cantoblanco, 28049 Madrid, Spain
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38
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Geukens N, Lammertyn E, Van Mellaert L, Engelborghs Y, Mellado RP, Anné J. Physical requirements for in vitro processing of the Streptomyces lividans signal peptidases. J Biotechnol 2002; 96:79-91. [PMID: 12142145 DOI: 10.1016/s0168-1656(02)00039-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The Gram-positive eubacterium Streptomyces lividans contains four chromosomally encoded type I signal peptidases, SipW, SipX, SipY and SipZ, of which all but SipW have an unusual C-terminal membrane anchor. For in vitro characterisation of these signal peptidases, the S. lividans sip genes were expressed in Escherichia coli and the corresponding proteins were purified. The four enzymes had an optimum activity at an alkaline pH, notably pH 8-9 for SipW and SipY and pH 10-11 for SipX and SipZ. In contrast to SipW, the in vitro activities of SipX, SipY and SipZ significantly increased in the presence of detergent. Since none of the S. lividans Sip proteins contains the hydrophobic beta-barrel domain, which in E. coli LepB was proven to be requisite for detergent-dependent in vitro activity, we assume that for detergent dependence, the C-terminal transmembrane anchor can partly substitute for this domain. Finally, all Sip proteins were stimulated by added phospholipids, which strongly suggests that phospholipids play an important role in the catalytic mechanism.
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Affiliation(s)
- Nick Geukens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, 3000, Leuven, Belgium
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Schaerlaekens K, Schierová M, Lammertyn E, Geukens N, Anné J, Van Mellaert L. Twin-arginine translocation pathway in Streptomyces lividans. J Bacteriol 2001; 183:6727-32. [PMID: 11698358 PMCID: PMC95510 DOI: 10.1128/jb.183.23.6727-6732.2001] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The recently discovered bacterial twin-arginine translocation (Tat) pathway was investigated in Streptomyces lividans, a gram-positive organism with a high secretion capacity. The presence of one tatC and two hcf106 homologs in the S. lividans genome together with the several precursor proteins with a twin-arginine motif in their signal peptide suggested the presence of the twin-arginine translocation pathway in the S. lividans secretome. To demonstrate its functionality, a tatC deletion mutant was constructed. This mutation impaired the translocation of the Streptomyces antibioticus tyrosinase, a protein that forms a complex with its transactivator protein before export. Also the chimeric construct pre-TorA-23K, known to be exclusively secreted via the Tat pathway in Escherichia coli, could be translocated in wild-type S. lividans but not in the tatC mutant. In contrast, the secretion of the Sec-dependent S. lividans subtilisin inhibitor was not affected. This study therefore demonstrates that also in general in Streptomyces spp. the Tat pathway is functional. Moreover, this Tat pathway can translocate folded proteins, and the E. coli TorA signal peptide can direct Tat-dependent transport in S. lividans.
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Affiliation(s)
- K Schaerlaekens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
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40
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Geukens N, Lammertyn E, Van Mellaert L, Schacht S, Schaerlaekens K, Parro V, Bron S, Engelborghs Y, Mellado RP, Anné J. Membrane topology of the Streptomyces lividans type I signal peptidases. J Bacteriol 2001; 183:4752-60. [PMID: 11466278 PMCID: PMC99529 DOI: 10.1128/jb.183.16.4752-4760.2001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2000] [Accepted: 05/26/2001] [Indexed: 11/20/2022] Open
Abstract
Most bacterial membranes contain one or two type I signal peptidases (SPases) for the removal of signal peptides from export proteins. For Streptomyces lividans, four different type I SPases (denoted SipW, SipX, SipY, and SipZ) were previously described. In this communication, we report the experimental determination of the membrane topology of these SPases. A protease protection assay of SPase tendamistat fusions confirmed the presence of the N- as well as the C-terminal transmembrane anchor for SipY. SipX and SipZ have a predicted topology similar to that of SipY. These three S. lividans SPases are currently the only known prokaryotic-type type I SPases of gram-positive bacteria with a C-terminal transmembrane anchor, thereby establishing a new subclass of type I SPases. In contrast, S. lividans SipW contains only the N-terminal transmembrane segment, similar to most type I SPases of gram-positive bacteria. Functional analysis showed that the C-terminal transmembrane anchor of SipY is important to enhance the processing activity, both in vitro as well as in vivo. Moreover, for the S. lividans SPases, a relation seems to exist between the presence or absence of the C-terminal anchor and the relative contributions to the total SPase processing activity in the cell. SipY and SipZ, two SPases with a C-terminal anchor, were shown to be of major importance to the cell. Accordingly, for SipW, missing the C-terminal anchor, a minor role in preprotein processing was found.
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Affiliation(s)
- N Geukens
- Laboratory of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, 3000 Leuven, Belgium
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Pozidis C, Lammertyn E, Politou AS, Ann� J, Tsiftsoglou AS, Sianidis G, Economou A. Protein secretion biotechnology usingStreptomyces lividans: Large-scale production of functional trimeric tumor necrosis factor ? Biotechnol Bioeng 2001. [DOI: 10.1002/1097-0290(20010320)72:6<611::aid-bit1026>3.0.co;2-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Theys J, Nuyts S, Landuyt W, Van Mellaert L, Dillen C, Böhringer M, Dürre P, Lambin P, Anné J. Stable Escherichia coli-Clostridium acetobutylicum shuttle vector for secretion of murine tumor necrosis factor alpha. Appl Environ Microbiol 1999; 65:4295-300. [PMID: 10508051 PMCID: PMC91569 DOI: 10.1128/aem.65.10.4295-4300.1999] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Recombinant plasmids were constructed to secrete mouse tumor necrosis factor alpha (mTNF-alpha) from Clostridium acetobutylicum. The shuttle plasmids contained the clostridial endo-beta1, 4-glucanase (eglA) promoter and signal sequence that was fused in frame to the mTNF-alpha cDNA. The construction was first tested in Escherichia coli and then introduced in C. acetobutylicum DSM792 by electroporation. Controls confirmed the presence and stability of the recombinant plasmids in this organism. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis and an in vitro cytotoxic assay were used to monitor expression and secretion of mTNF-alpha during growth. Significant levels of biologically active mTNF-alpha were measured in both lysates and supernatants. The present report deals with investigations on the elaboration of a gene transfer system for cancer treatment using anaerobic bacteria.
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Affiliation(s)
- J Theys
- Laboratories of Bacteriology, Rega Institute, Katholieke Universiteit Leuven, Belgium
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44
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Lammertyn E, Anné J. Modifications of Streptomyces signal peptides and their effects on protein production and secretion. FEMS Microbiol Lett 1998; 160:1-10. [PMID: 9495006 DOI: 10.1111/j.1574-6968.1998.tb12882.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
As for other organisms, proteins to be secreted in Streptomyces are produced as preproteins consisting of the mature protein preceded by a N-terminal signal peptide which is cleaved off during membrane translocation. Although primary sequences are seldom conserved among signal peptides, they all have a typical tripartite structure: a basic amino-terminus, a central apolar core and a carboxy-terminal region containing the signal peptidase recognition site. In vitro mutagenesis studies have been carried out on various signal peptides to analyse the structure-function relationship of each of the three regions of Streptomyces signal peptides. In the current paper the present knowledge of Streptomyces leader sequences and the impact of introduced mutations on transcription, translation and secretion of homologous and heterologous proteins is reviewed.
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Affiliation(s)
- E Lammertyn
- Laboratory of Bacteriology, Rega Instituut, Katholieke Universiteit Leuven, Belgium
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45
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Van Mellaert L, Lammertyn E, Schacht S, Proost P, Van Damme J, Wroblowski B, Anné J, Scarcez T, Sablon E, Raeymaeckers J, Van Broekhoven A. Molecular characterization of a novel subtilisin inhibitor protein produced by Streptomyces venezuelae CBS762.70. DNA SEQUENCE : THE JOURNAL OF DNA SEQUENCING AND MAPPING 1998; 9:19-30. [PMID: 9773272 DOI: 10.3109/10425179809050021] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report here on the isolation and identification of a gene coding for a novel subtilisin inhibitor (VSI) isolated from Streptomyces venezuelae CBS762.70. The vsi gene was isolated on a 5-kb chromosomal PvuII fragment as identified by DNA sequencing and inhibitor activity testing of the gene product. Primer extension studies revealed that the mRNA transcriptional start point was situated at -37 and -36 relatively to the ATG start codon assuming the presence of solely one promoter. Vsi promoter strength was about double of those of ermE-P1a and aph-P1, as tested with the mRNA production of the aphII gene preceded by the respective promoters. Translation of the vsi coding sequence revealed a 28 amino acids long signal peptide. The mature VSI protein consists of 118 amino acids of which 87% was verified by N-terminal amino acid sequence analysis. Compared with the already known Streptomyces proteinase inhibitors, VSI shows a relatively high amino acid identity in the conserved domains. Nevertheless, only a maximum amino acid identity of 56.1% was noticed and some highly conserved residues were substituted in VSI. As a consequence, VSI could be classified within a separate group of Streptomyces subtilisin inhibitors.
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Affiliation(s)
- L Van Mellaert
- Laboratorie of Microbiology, Rega Institute, K.U. Leuven, Belgium
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