1
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Jennings MR, Min S, Xu GS, Homayuni K, Suresh B, Haikal YA, Blazeck J. Optimized expression and purification of a human adenosine deaminase in E. coli and characterization of its Asp8Asn variant. Protein Expr Purif 2024; 213:106362. [PMID: 37683902 PMCID: PMC10664833 DOI: 10.1016/j.pep.2023.106362] [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: 05/23/2023] [Revised: 08/22/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023]
Abstract
Homo sapiens adenosine deaminase isoform 1 (HsADA1) hydrolyzes adenosine and 2-deoxyadenosine as a key step in the purine nucleoside salvage pathway. Some HsADA1 mutations have severe deleterious effects, as is the case in a severe combined immunodeficiency resulting from loss of enzyme activity (ADA-SCID). Other mutations that reduce enzyme activity, for instance the Asp8Asn (D8N) variant, do not cause ADA-SCID but are correlated with other consequences to health. To ease further study of HsADA1 and its variants, we optimized an inexpensive, recombinant expression process in an Escherichia coli host through multiplexed parameter testing enabled by a lysate-based microtiter plate assay. We demonstrate the importance of gene codon usage, induction time and temperature, and alcohol supplementation towards improving enzyme yield to a final titer of 5 mg per liter of culture. We further show that use of a double-histidine-tag (his-tag) system greatly improves purity. We then utilize our expression and purification framework to produce the HsADA1 D8N variant, which had previously not been purified to homogeneity. We confirm that the D8N variant is ∼30% less active than the wildtype HsADA1 and show that it better retains its activity in human serum. Additionally, we show that both HsADA1 and the D8N variant have heightened activity in serum, driven in part by a previously undescribed phenomenon involving albumin. Therefore, this work presents a valuable process to produce HsADA1 that allows for insights into it and its variants' behavior. We also confirm the utility of lysate-based activity assays towards finding optimal E. coli expression conditions for enzymes and show how fusing his-tags in tandem can enhance product purity.
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Affiliation(s)
- Maria Rain Jennings
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Soohyon Min
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Grace S Xu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kassandra Homayuni
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Bhavana Suresh
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Yusef Amir Haikal
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - John Blazeck
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
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2
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Feng Y, Shao S, Zhou X, Wei W, Liu X, Tang Y, Hua Y, Zheng J, Zhang Y, Ying X. Enhancing the Catalytic Activity of Glycolate Oxidase from Chlamydomonas reinhardtii through Semi-Rational Design. Microorganisms 2023; 11:1689. [PMID: 37512862 PMCID: PMC10385363 DOI: 10.3390/microorganisms11071689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 06/25/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Glycolate oxidase is a peroxisomal flavoprotein catalyzing the oxidation of glycolate to glyoxylate and plays crucial metabolic roles in green algae, plants, and animals. It could serve as a biocatalyst for enzymatic production of glyoxylate, a fine chemical with a wide variety of applications in perfumery, flavor, and the pharmaceutical and agrochemical industries. However, the low catalytic activity of native glycolate oxidase and low levels of active enzyme in heterologous expression limit its practical use in industrial biocatalysis. Herein, the glycolate oxidase from Chlamydomonas reinhardtii (CreGO) was selected through phylogenetic tree analysis, and its low level of soluble expression in E. coli BL21(DE3) was improved through the use of the glutathione thioltransferase (GST), the choice of the vector pET22b and the optimization of induction conditions. The semi-rational design of the fusion enzyme GST-Gly-Ser-Gly-CreGO led to the superior variant GST-Gly-Ser-Gly-CreGO-Y27S/V111G/V212R with the kcat/Km value of 29.2 s-1·mM-1, which was six times higher than that of the wild type. In contrast to GST-Gly-Ser-Gly-CreGO, 5 mg/mL of crude enzyme GST-Gly-Ser-Gly-CreGO-Y27S/V111G/V212R together with 25 μg/mL of catalase catalyzed the oxidation of 300 mM of methyl glycolate for 8 h, increasing the yield from 50.4 to 93.5%.
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Affiliation(s)
- Yingting Feng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Shuai Shao
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xueting Zhou
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wan Wei
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xun Liu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yi Tang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuhao Hua
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jianyong Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yinjun Zhang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiangxian Ying
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, China
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3
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Munir A, Ahmed N, Akram M, Fujimura NA, Tahir S, Malik K. Enhanced soluble expression of active recombinant human interleukin-29 using champion pET SUMO system. Biotechnol Lett 2023:10.1007/s10529-023-03402-x. [PMID: 37266881 DOI: 10.1007/s10529-023-03402-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 05/05/2023] [Accepted: 05/19/2023] [Indexed: 06/03/2023]
Abstract
Current research focuses on the soluble and high-level expression of biologically active recombinant human IL-29 protein in Escherichia coli. The codon-optimized IL-29 gene was cloned into the Champion™ pET SUMO expression system downstream of the SUMO tag under the influence of the T7 lac promoter. The expression of SUMO-fused IL-29 protein was compared in E. coli Rosetta 2(DE3), Rosetta 2(DE3) pLysS, and Rosetta-gami 2(DE3). The release of the SUMO fusion partner resulted in approximately 98 mg of native rhIL-29 protein with a purity of 99% from 1 l of fermentation culture. Purified rhIL-29 was found to be biologically active, as evaluated by its anti-proliferation assay. It was found that Champion™ pET SUMO expression system can be used to obtained high yield of biologically active soluble recombinant human protein compared to other expression vector.
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Affiliation(s)
- Ayesha Munir
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Nadeem Ahmed
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan.
| | - Muhammad Akram
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Nao Akusa Fujimura
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Saad Tahir
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Kausar Malik
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
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4
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Han R, Fang H, Fan Z, Ji Y, Schwaneberg U, Ni Y. Coupled reaction of glycosyltransferase and sucrose synthase for high-yielding and cost-effective synthesis of rosin. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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5
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Generation of a recombinant version of a biologically active cell-permeant human HAND2 transcription factor from E. coli. Sci Rep 2022; 12:16129. [PMID: 36167810 PMCID: PMC9515176 DOI: 10.1038/s41598-022-19745-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 09/02/2022] [Indexed: 12/02/2022] Open
Abstract
Transcription factor HAND2 has a significant role in vascularization, angiogenesis, and cardiac neural crest development. It is one of the key cardiac factors crucial for the enhanced derivation of functional and mature myocytes from non-myocyte cells. Here, we report the generation of the recombinant human HAND2 fusion protein from the heterologous system. First, we cloned the full-length human HAND2 gene (only protein-coding sequence) after codon optimization along with the fusion tags (for cell penetration, nuclear translocation, and affinity purification) into the expression vector. We then transformed and expressed it in Escherichia coli strain, BL21(DE3). Next, the effect (in terms of expression) of tagging fusion tags with this recombinant protein at two different terminals was also investigated. Using affinity chromatography, we established the one-step homogeneous purification of recombinant human HAND2 fusion protein; and through circular dichroism spectroscopy, we established that this purified protein had retained its secondary structure. We then showed that this purified human protein could transduce the human cells and translocate to its nucleus. The generated recombinant HAND2 fusion protein showed angiogenic potential in the ex vivo chicken embryo model. Following transduction in MEF2C overexpressing cardiomyoblast cells, this purified recombinant protein synergistically activated the α-MHC promoter and induced GFP expression in the α-MHC-eGFP reporter assay. Prospectively, the purified bioactive recombinant HAND2 protein can potentially be a safe and effective molecular tool in the direct cardiac reprogramming process and other biological applications.
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Falak S, Sajed M, Rashid N. Strategies to enhance soluble production of heterologous proteins in Escherichia coli. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-021-00994-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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A combination strategy of solubility enhancers for effective production of soluble and bioactive human enterokinase. J Biotechnol 2021; 340:57-63. [PMID: 34506803 DOI: 10.1016/j.jbiotec.2021.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/27/2021] [Accepted: 09/03/2021] [Indexed: 11/23/2022]
Abstract
Enterokinase is one of the hydrolases that catalyze hydrolysis to regulate biological processes in intestinal visceral mucosa. Enterokinase plays an essential role in accelerating the process of protein digestion as it converts trypsinogen into active trypsin by accurately recognizing and cleaving a specific peptide sequence, (Asp)4-Lys. Due to its exceptional substrate specificity, enterokinase is widely used as a versatile molecular tool in various bioprocessing, especially in removing fusion tags from recombinant proteins. Despite its biotechnological importance, mass production of soluble enterokinase in bacteria still remains an unsolved challenge. Here, we present an effective production strategy of human enterokinase using tandemly linked solubility enhancers consisting of thioredoxin, phosphoglycerate kinase or maltose-binding protein. The resulting enterokinases exhibited significantly enhanced solubility and bacterial expression level while retaining enzymatic activity, which demonstrates that combinatorial design of fusion proteins has the potential to provide an efficient way to produce recombinant proteins in bacteria.
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8
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Ma W, Lu Y, Zuo Y, Wang C, Liu J. Effects of removing a highly conserved disulfide bond in ubiquitin-associated domain of human HOIP on biochemical characteristics. Protein Expr Purif 2021; 190:106005. [PMID: 34695570 DOI: 10.1016/j.pep.2021.106005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/21/2021] [Accepted: 10/21/2021] [Indexed: 11/30/2022]
Abstract
Disulfide bond formed between the cysteine pairs plays a key role in maintaining the integrity of the protein structure and function. The ubiquitin-associated (UBA) domain of human HOIP contains three cysteine residues, Cys504, Cys551, and Cys572. Disulfide bonds formed by Cys504 and Cys551 residues are highly conserved, but the effect of disulfide bonds on the biochemical characteristics of UBA has not been elucidated. In addition, due to the presence of isolated Cys572, inactive inclusion bodies may be formed during protein expression or trigger protein aggregation during protein purification. In this study, the co-expression of SUMO fusion protein combined with SUMO protease (ULP enzyme) in Escherichia coli was successfully applied to improve the soluble expression of UBA domain. Introduced three mutants (UBAC551A, UBAC572A and UBAC551,572A) determined the effects of disulfide bonds on the biochemical characteristics of UBA. Circular dichroism and analytical size exclusion chromatography results showed that the target proteins obtained by co-expression could be folded correctly and had biological activity. Both thermal-induced and urea-induced results demonstrated that the elimination of disulfide bonds would significantly reduce the stability of UBA. Fluorescence spectroscopy result showed that the elimination of disulfide bonds slightly increases the binding affinity of UBA to ligands. In summary, soluble, stable and active UBA domain and its mutants were prepared by co-expression system, which will further contribute to the structural and functional research of UBA.
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Affiliation(s)
- Wenlei Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Ying Lu
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Yongmei Zuo
- Heilongjiang Institute of Animal Health Inspection, Harbin, 150006, China
| | - Chenchen Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China
| | - Jiafu Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, China; Harbin Medical University-Daqing, No 39, Xin Yang Road, Daqing, Heilongjiang, 163319, China.
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Strategies for the Production of Soluble Interferon-Alpha Consensus and Potential Application in Arboviruses and SARS-CoV-2. Life (Basel) 2021; 11:life11060460. [PMID: 34063766 PMCID: PMC8223780 DOI: 10.3390/life11060460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/08/2021] [Accepted: 05/14/2021] [Indexed: 12/18/2022] Open
Abstract
Biopharmaceutical production is currently a multibillion-dollar industry with high growth perspectives. The research and development of biologically sourced pharmaceuticals are extremely important and a reality in our current healthcare system. Interferon alpha consensus (cIFN) is a non-natural synthetic antiviral molecule that comprises all the most prevalent amino acids of IFN-α into one consensus protein sequence. For clinical use, cIFN is produced in E. coli in the form of inclusion bodies. Here, we describe the use of two solubility tags (Fh8 and DsbC) to improve soluble cIFN production. Furthermore, we analyzed cIFN production in different culture media and temperatures in order to improve biopharmaceutical production. Our results demonstrate that Fh8-cIFN yield was improved when bacteria were cultivated in autoinduction culture medium at 30 °C. After hydrolysis, the recovery of soluble untagged cIFN was 58% from purified Fh8-cIFN molecule, fourfold higher when compared to cIFN recovered from the DsbC-cIFN, which achieved 14% recovery. The biological activity of cIFN was tested on in vitro model of antiviral effect against Zika, Mayaro, Chikungunya and SARS-CoV-2 virus infection in susceptible VERO cells. We show, for the first time, that cIFN has a potent activity against these viruses, being very low amounts of the molecule sufficient to inhibit virus multiplication. Thus, this molecule could be used in a clinical approach to treat Arboviruses and SARS-CoV-2.
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10
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Generation of biologically active recombinant human OCT4 protein from E. coli. 3 Biotech 2021; 11:207. [PMID: 33927995 DOI: 10.1007/s13205-021-02758-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 03/27/2021] [Indexed: 02/06/2023] Open
Abstract
Octamer-binding transcription factor 4 (OCT4) is vital for early embryonic development and is a master regulator of pluripotency in embryonic stem cells. Notably, OCT4 is a key reprogramming factor to derive induced pluripotent stem cells, which have tremendous prospects in regenerative medicine. In the current study, we report heterologous expression and purification of human OCT4 in E. coli to produce pure recombinant protein under native conditions. To achieve this, the 1083 bp coding sequence of the human OCT4 gene was codon-optimized for heterologous expression in E. coli. The codon-optimized sequence was fused with fusion tags, namely a cell-penetrating peptide sequence for intracellular delivery, a nuclear localization sequence for intranuclear delivery, and a His-tag for affinity purification. Subsequently, the codon-optimized sequence and the fusion tags were cloned in the protein expression vector, pET28a(+), and transformed into E. coli strain BL21(DE3) for expression. The recombinant OCT4 protein was purified from the soluble fraction under native conditions using immobilized metal ion affinity chromatography in a facile manner, and its identity was confirmed by Western blotting and mass spectrometry. Furthermore, the secondary structure of the recombinant protein was analyzed using far ultraviolet circular dichroism spectroscopy, which confirmed that the purified fusion protein maintained a secondary structure conformation, and it predominantly composed of α-helices. Next, the recombinant OCT4 protein was applied to human cells, and was found that it was able to enter the cells and translocate to the nucleus. Furthermore, the biological activity of the transduced OCT4 protein was also demonstrated on human cells. This recombinant tool can substitute for genetic and viral forms of OCT4 to enable the derivation of integration-free pluripotent cells. It can also be used to elucidate its biological role in various cellular processes and diseases and for structural and biochemical studies. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02758-z.
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Castro LS, Lobo GS, Pereira P, Freire MG, Neves MC, Pedro AQ. Interferon-Based Biopharmaceuticals: Overview on the Production, Purification, and Formulation. Vaccines (Basel) 2021; 9:328. [PMID: 33915863 PMCID: PMC8065594 DOI: 10.3390/vaccines9040328] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/20/2021] [Accepted: 03/22/2021] [Indexed: 12/17/2022] Open
Abstract
The advent of biopharmaceuticals in modern medicine brought enormous benefits to the treatment of numerous human diseases and improved the well-being of many people worldwide. First introduced in the market in the early 1980s, the number of approved biopharmaceutical products has been steadily increasing, with therapeutic proteins, antibodies, and their derivatives accounting for most of the generated revenues. The success of pharmaceutical biotechnology is closely linked with remarkable developments in DNA recombinant technology, which has enabled the production of proteins with high specificity. Among promising biopharmaceuticals are interferons, first described by Isaacs and Lindenmann in 1957 and approved for clinical use in humans nearly thirty years later. Interferons are secreted autocrine and paracrine proteins, which by regulating several biochemical pathways have a spectrum of clinical effectiveness against viral infections, malignant diseases, and multiple sclerosis. Given their relevance and sustained market share, this review provides an overview on the evolution of interferon manufacture, comprising their production, purification, and formulation stages. Remarkable developments achieved in the last decades are herein discussed in three main sections: (i) an upstream stage, including genetically engineered genes, vectors, and hosts, and optimization of culture conditions (culture media, induction temperature, type and concentration of inducer, induction regimens, and scale); (ii) a downstream stage, focusing on single- and multiple-step chromatography, and emerging alternatives (e.g., aqueous two-phase systems); and (iii) formulation and delivery, providing an overview of improved bioactivities and extended half-lives and targeted delivery to the site of action. This review ends with an outlook and foreseeable prospects for underdeveloped aspects of biopharma research involving human interferons.
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Affiliation(s)
- Leonor S. Castro
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Guilherme S. Lobo
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Patrícia Pereira
- Centre for Mechanical Engineering, Materials and Processes, Department of Chemical Engineering, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal;
| | - Mara G. Freire
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Márcia C. Neves
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
| | - Augusto Q. Pedro
- CICECO–Aveiro Institute of Materials, Chemistry Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (L.S.C.); (G.S.L.); (M.G.F.)
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13
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Generation of cell-permeant recombinant human transcription factor GATA4 from E. coli. Bioprocess Biosyst Eng 2021; 44:1131-1146. [PMID: 33559005 DOI: 10.1007/s00449-021-02516-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 01/17/2021] [Indexed: 12/11/2022]
Abstract
Transcription factor GATA4 is expressed during early embryogenesis and is vital for proper development. In addition, it is a crucial reprogramming factor for deriving functional cardiomyocytes and was recently identified as a tumor suppressor protein in various cancers. To generate a safe and effective molecular tool that can potentially be used in a cell reprogramming process and as an anti-cancer agent, we have identified optimal expression parameters to obtain soluble expression of human GATA4 in E. coli and purified the same to homogeneity under native conditions using immobilized metal ion affinity chromatography. The identity of GATA4 protein was confirmed using western blotting and mass spectrometry. Using circular dichroism spectroscopy, it was demonstrated that the purified recombinant protein has maintained its secondary structure, primarily comprising of random coils and α-helices. Subsequently, this purified recombinant protein was applied to human cells and was found that it was non-toxic and able to enter the cells as well as translocate to the nucleus. Prospectively, this cell- and nuclear-permeant molecular tool is suitable for cell reprogramming experiments and can be a safe and effective therapeutic agent for cancer therapy.
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14
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Goncharuk MV, Lushpa VA, Goncharuk SA, Arseniev AS, Mineev KS. Sampling the cultivation parameter space for the bacterial production of TLR1 intracellular domain reveals the multiple optima. Protein Expr Purif 2021; 181:105832. [PMID: 33516826 DOI: 10.1016/j.pep.2021.105832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/14/2021] [Accepted: 01/24/2021] [Indexed: 10/25/2022]
Abstract
T7 expression system is an extremely popular approach for the recombinant protein production in Escherichia coli for structural and functional studies and therapeutic applications. There are many useful tools and successful techniques that allow expressing the desired protein in this system. However, high yield of soluble protein often requires a systematic optimization of a wide range of cell cultivation parameters. Here we analyze the effect of three key cultivation parameters - chemical inductor, temperature and time of post-induction culturing on the expression level of TLR1 intracellular TIR domain in a soluble form. In addition, the influence of Triton X-100 detergent on the protein solubility during the cell lysis was investigated. We show that a high expression level of the correctly folded soluble protein can be obtained under different combinations of cultivation parameters.
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Affiliation(s)
- Marina V Goncharuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya str., 16/10, Moscow, Russia.
| | - Vladislav A Lushpa
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya str., 16/10, Moscow, Russia; Moscow Institute of Physics and Technology, 141701, Institutsky per, 9, Dolgoprudny, Russia
| | - Sergey A Goncharuk
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya str., 16/10, Moscow, Russia
| | - Alexander S Arseniev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya str., 16/10, Moscow, Russia
| | - Konstantin S Mineev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Miklukho-Maklaya str., 16/10, Moscow, Russia
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15
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Prabhu SK, Yang Q, Tong X, Wang LX. Exploring a combined Escherichia coli-based glycosylation and in vitro transglycosylation approach for expression of glycosylated interferon alpha. Bioorg Med Chem 2021; 33:116037. [PMID: 33515919 DOI: 10.1016/j.bmc.2021.116037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 02/06/2023]
Abstract
The conventional use of E. coli system for protein expression is limited to non-glycosylated proteins. While yeast, insect and mammalian systems are available to produce heterologous glycoproteins, developing an engineered E. coli-based glycosylation platform will provide a faster, more economical, and more convenient alternative. In this work, we present a two-step approach for production of a homogeneously glycosylated eukaryotic protein using the E. coli expression system. Human interferon α-2b (IFNα) is used as a model protein to illustrate this glycosylation scheme. In the first step, the N-glycosyltransferase from Actinobacillus pleuropneumoniae (ApNGT) is co-expressed for in vivo transfer of a glucose residue to IFNα at an NX(S/T) N-glycosylation sequon. Several E. coli systems were examined to evaluate the efficiency of IFNα N-glucosylation. In the second step, the N-glucosylated protein is efficiently elaborated with biantennary sialylated complex-type N-glycan using an in vitro chemoenzymatic method. The N-glycosylated IFNα product was found to be biologically active and displayed significantly improved proteolytic stability. This work presents a feasible E. coli-based glycosylation machinery for producing therapeutic eukaryotic glycoproteins.
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Affiliation(s)
- Sunaina Kiran Prabhu
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Qiang Yang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Xin Tong
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Lai-Xi Wang
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA.
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16
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Narayan G, Sundaravadivelu PK, Agrawal A, Gogoi R, Nagotu S, Thummer RP. Soluble expression, purification, and secondary structure determination of human PDX1 transcription factor. Protein Expr Purif 2020; 180:105807. [PMID: 33309974 DOI: 10.1016/j.pep.2020.105807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/03/2020] [Accepted: 12/08/2020] [Indexed: 01/06/2023]
Abstract
The transcription factor PDX1 is a master regulator essential for proper development of the pancreas, duodenum and antrum. Furthermore, it is an indispensable reprogramming factor for the derivation of human β-cells, and recently, it has been identified as a tumor suppressor protein in gastric cancer. Here, we report the soluble expression and purification of the full-length human PDX1 protein from a heterologous system. To achieve this, the 849 bp coding sequence of the PDX1 gene was first codon-optimized for expression in Escherichia coli (E. coli). This codon-optimized gene sequence was fused to a protein transduction domain, a nuclear localization sequence, and a His-tag, and this insert was cloned into the protein expression vector for expression in E. coli strain BL21(DE3). Next, screening and identification of the suitable gene construct and optimal expression conditions to obtain this recombinant fusion protein in a soluble form was performed. Further, we have purified this recombinant fusion protein to homogeneity under native conditions. Importantly, the secondary structure of the protein was retained after purification. Further, this recombinant PDX1 fusion protein was applied to human cells and showed the ability to enter the cells as well as translocate to the nucleus. This recombinant tool can be used as a safe tool and can potentially replace its genetic and viral forms in the reprogramming process to induce a β-cell-specific transcriptional profile in an integration-free manner. Additionally, it can also be used to elucidate its role in cellular processes and for structural and biochemical studies.
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Affiliation(s)
- Gloria Narayan
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
| | - Pradeep Kumar Sundaravadivelu
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
| | - Akriti Agrawal
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
| | - Ranadeep Gogoi
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research Guwahati, Changsari, 781101, Guwahati, Assam, India; CSIR-North East Institute of Science & Technology, Jorhat, 785006, Assam, India.
| | - Shirisha Nagotu
- Organelle Biology and Cellular Ageing Lab, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
| | - Rajkumar P Thummer
- Laboratory for Stem Cell Engineering and Regenerative Medicine, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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17
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Fu Z, Fan G, Zhu Y, Teng C, Li H, Liu Q, Yang R, Li X. Soluble expression of a novel feruloyl esterase from Burkholderia pyrrocinia B1213 in Escherichia coli and optimization of production conditions. BIOTECHNOL BIOTEC EQ 2020. [DOI: 10.1080/13102818.2020.1803129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Zhilei Fu
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Guangsen Fan
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Yuting Zhu
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Chao Teng
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Hehe Li
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Qian Liu
- Beijing Key Laboratory of Bioactive Substances and Functional Foods, College of Biochemical Engineering, Beijing Union University, Beijing, PR China
| | - Ran Yang
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
| | - Xiuting Li
- Laboratory of Food Microbiology and Enzyme Engineering, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, Beijing, PR China
- Laboratory of Food Microbiology and Enzyme Engineering, School of Food and Health, Beijing Technology and Business University, Beijing, PR China
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18
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Wang X, Wu J, Chen J, Xiao L, Zhang Y, Wang F, Li X. Efficient Biosynthesis of R-(-)-Linalool through Adjusting the Expression Strategy and Increasing GPP Supply in Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:8381-8390. [PMID: 32657129 DOI: 10.1021/acs.jafc.0c03664] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
R-(-)-linalool is widely used in pharmaceutical, agrochemical, and fragrance industries. However, plant extraction furnishes only limited and unstable R-(-)-linalool yields that do not satisfy market demand. Therefore, a sustainable yet efficient and productive method is urgently needed. To induce the R-(-)-linalool biosynthesis pathway in Escherichia coli, we expressed several heterologous (3R)-linalool synthases (LISs) and then chose a suitable LIS from Streptomyces clavuligerus (bLIS) for further study. The bLIS expression was markedly elevated by using optimized ribosomal binding sites and protein fusion tags. To increase the geranyl diphosphate content, we tested various alterations in prenyltransferases and their mutants. The final strain accumulated 100.1 and 1027.3 mg L-1 R-(-)-linalool under shake flask and fed-batch fermentation conditions, respectively. The latter is the highest reported R-(-)-linalool yield to date. This work could lay theoretical and empirical foundations for engineering terpenoid pathways and optimizing other metabolic pathways.
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Affiliation(s)
- Xun Wang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jing Wu
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jiaming Chen
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Longjie Xiao
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yu Zhang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Fei Wang
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xun Li
- Jiangsu Provincial Key Laboratory for the Chemistry and Utilization of Agro-Forest Biomass, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Key Laboratory of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
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19
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Ahmadzadeh M, Farshdari F, Nematollahi L, Behdani M, Mohit E. Anti-HER2 scFv Expression in Escherichia coli SHuffle®T7 Express Cells: Effects on Solubility and Biological Activity. Mol Biotechnol 2019; 62:18-30. [DOI: 10.1007/s12033-019-00221-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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20
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Zarkar N, Nasiri Khalili MA, Khodadadi S, Zeinoddini M, Ahmadpour F. Expression and purification of soluble and functional fusion protein DAB 389 IL-2 into the E. coli strain Rosetta-gami (DE3). Biotechnol Appl Biochem 2019; 67:206-212. [PMID: 31600001 DOI: 10.1002/bab.1833] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 09/03/2019] [Indexed: 11/10/2022]
Abstract
DAB389 IL-2 (Denileukin diftitox) is considered an immunotoxin, and it is the first immunotoxin approved by Food and Drug Administration. It is used for the treatment of a cutaneous form of T-cell lymphoma. This fusion protein has two disulfide bonds in its structure that play an essential role in toxicity and functionality of the immunotoxin. Escherichia coli (E. coli) strain BL21 (DE3) is not capable of making disulfide bonds in its reductive cytoplasm, but the E. coli strain Rosetta-gami (DE3) is a proper strain for the correct expression of the protein due to mutations in glutaredoxin reductase and thioredoxin reductase. In this study, a pET21a vector with the His6-tag fused at the N-terminus of DAB389 IL-2 was used to express the soluble immunotoxin in E. coli Rosetta-gami (DE3). After the purification of the soluble protein by two-step column chromatographies, the structure of DAB389 IL-2 was analyzed using the Native-PAGE and circular dichroism methods. In the following, the nuclease activity of soluble DAB389 IL-2 and its cytotoxicity activity were determined. It is concluded that the soluble recombinant protein expressed in the E. coli Rosetta-gami (DE3) has an intact structure and also functional; hence, this form of immunotoxin could be competitive with its commercial counterparts.
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Affiliation(s)
| | | | | | | | - Fathollah Ahmadpour
- Trauma Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran
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21
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de Marco A, Ferrer-Miralles N, Garcia-Fruitós E, Mitraki A, Peternel S, Rinas U, Trujillo-Roldán MA, Valdez-Cruz NA, Vázquez E, Villaverde A. Bacterial inclusion bodies are industrially exploitable amyloids. FEMS Microbiol Rev 2019; 43:53-72. [PMID: 30357330 DOI: 10.1093/femsre/fuy038] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/23/2018] [Indexed: 12/13/2022] Open
Abstract
Understanding the structure, functionalities and biology of functional amyloids is an issue of emerging interest. Inclusion bodies, namely protein clusters formed in recombinant bacteria during protein production processes, have emerged as unanticipated, highly tunable models for the scrutiny of the physiology and architecture of functional amyloids. Based on an amyloidal skeleton combined with varying amounts of native or native-like protein forms, bacterial inclusion bodies exhibit an unusual arrangement that confers mechanical stability, biological activity and conditional protein release, being thus exploitable as versatile biomaterials. The applicability of inclusion bodies in biotechnology as enriched sources of protein and reusable catalysts, and in biomedicine as biocompatible topographies, nanopills or mimetics of endocrine secretory granules has been largely validated. Beyond these uses, the dissection of how recombinant bacteria manage the aggregation of functional protein species into structures of highly variable complexity offers insights about unsuspected connections between protein quality (conformational status compatible with functionality) and cell physiology.
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Affiliation(s)
- Ario de Marco
- Laboratory for Environmental and Life Sciences, University of Nova Gorica, Vipavska Cesta 13, 5000 Nova Gorica, Slovenia
| | - Neus Ferrer-Miralles
- Institut de Biotecnologia i de Biomedicina (IBB), Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,Departament de Genètica i de Microbiologia, Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Carrer de la Vall Moronta s/n, 08193 Cerdanyola del Vallès, Spain
| | - Elena Garcia-Fruitós
- Department of Ruminant Production, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Torre Marimon, 08140 Caldes de Montbui, Barcelona, Spain
| | - Anna Mitraki
- Department of Materials Science and Technology, University of Crete, Vassilika Vouton, 70013 Heraklion, Crete, Greece.,Institute of Electronic Structure and Laser (IESL), Foundation for Research and Technology Hellas (FORTH), N. Plastira 100, Vassilika Vouton, 70013 Heraklion, Crete, Greece
| | | | - Ursula Rinas
- Leibniz University of Hannover, Technical Chemistry and Life Science, 30167 Hannover, Germany.,Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Mauricio A Trujillo-Roldán
- Programa de Investigación de Producción de Biomoléculas, Unidad de Bioprocesos, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510 Ciudad de México, México
| | - Norma A Valdez-Cruz
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510 Ciudad de México, México
| | - Esther Vázquez
- Institut de Biotecnologia i de Biomedicina (IBB), Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,Departament de Genètica i de Microbiologia, Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Carrer de la Vall Moronta s/n, 08193 Cerdanyola del Vallès, Spain
| | - Antonio Villaverde
- Institut de Biotecnologia i de Biomedicina (IBB), Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,Departament de Genètica i de Microbiologia, Carrer de la Vall Moronta s/n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Carrer de la Vall Moronta s/n, 08193 Cerdanyola del Vallès, Spain
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22
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Tyurin AA, Kabardaeva KV, Mustafaev ON, Pavlenko OS, Sadovskaya NS, Fadeev VS, Zvonova EA, Goldenkova-Pavlova IV. Expression of Soluble Active Interferon αA in Escherichia coli Periplasm by Fusion with Thermostable Lichenase Using the Domain Insertion Approach. BIOCHEMISTRY (MOSCOW) 2018; 83:259-269. [DOI: 10.1134/s0006297918030069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Cook DP, Gysemans C, Mathieu C. Lactococcus lactis As a Versatile Vehicle for Tolerogenic Immunotherapy. Front Immunol 2018; 8:1961. [PMID: 29387056 PMCID: PMC5776164 DOI: 10.3389/fimmu.2017.01961] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/19/2017] [Indexed: 12/22/2022] Open
Abstract
Genetically modified Lactococcus lactis bacteria have been engineered as a tool to deliver bioactive proteins to mucosal tissues as a means to exert both local and systemic effects. They have an excellent safety profile, the result of years of human consumption in the food industry, as well as a lack of toxicity and immunogenicity. Also, containment strategies have been developed to promote further application as clinical protein-based therapeutics. Here, we review technological advancements made to enhanced the potential of L. lactis as live biofactories and discuss some examples of tolerogenic immunotherapies mediated by mucosal drug delivery via L. lactis. Additionally, we highlight their use to induce mucosal tolerance by targeted autoantigen delivery to the intestine as an approach to reverse autoimmune type 1 diabetes.
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Affiliation(s)
- Dana P Cook
- Laboratory of Clinical and Experimental Endocrinology (CEE), KU Leuven, Leuven, Belgium
| | - Conny Gysemans
- Laboratory of Clinical and Experimental Endocrinology (CEE), KU Leuven, Leuven, Belgium
| | - Chantal Mathieu
- Laboratory of Clinical and Experimental Endocrinology (CEE), KU Leuven, Leuven, Belgium
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24
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Molecular Cloning, Structural Modeling and the Production of Soluble Triple-Mutated Diphtheria Toxoid (K51E/G52E/E148K) Co-expressed with Molecular Chaperones in Recombinant Escherichia coli. Mol Biotechnol 2018; 59:117-127. [PMID: 28324209 DOI: 10.1007/s12033-017-0001-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
CRM197 is a diphtheria toxin (DT) mutant (G52E) which has been used as a carrier protein for conjugate vaccines. However, it still possesses cytotoxicity toward mammalian cells. The goal of this project was to produce a non-toxic and soluble CRM197EK through introduction of triple amino acid substitutions (K51E/G52E/E148K) in Escherichia coli. The expression of CRM197EKTrxHis was optimized and co-expressed with different molecular chaperones. The soluble CRM197EKTrxHis was produced at a high concentration (97.33 ± 17.47 μg/ml) under the optimal condition (induction with 0.1 mM IPTG at 20 °C for 24 h). Cells containing pG-Tf2, expressing trigger factor and GroEL-GroES, accumulated the highest amount of soluble CRM197EKTrxHis at 111.24 ± 10.40 μg/ml after induction for 24 h at 20 °C. The soluble CRM197EKTrxHis still possesses nuclease activity and completely digest λDNA at 25 and 37 °C with 8- and 4-h incubation, respectively. Molecular modeling of diphtheria toxin, CRM197 and CRM197EK indicated that substitutions of two amino acids (K51E/E148K) may cause poor NAD binding, consistent with the lack of toxicity. Therefore, CRM197EK might be used as a new potential carrier protein. However, further in vivo study is required to confirm its roles as functional carrier protein in conjugate vaccines.
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25
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Purification of therapeutic proteins mediated by in vivo polyester immobilized sortase. Biotechnol Lett 2017; 40:369-373. [DOI: 10.1007/s10529-017-2473-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
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26
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Du J, Rehm BHA. Purification of target proteins from intracellular inclusions mediated by intein cleavable polyhydroxyalkanoate synthase fusions. Microb Cell Fact 2017; 16:184. [PMID: 29096637 PMCID: PMC5667439 DOI: 10.1186/s12934-017-0799-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 10/24/2017] [Indexed: 11/12/2022] Open
Abstract
Background Recombinant protein production and purification from Escherichia coli is often accompanied with expensive and complicated procedures, especially for therapeutic proteins. Here it was demonstrated that, by using an intein cleavable polyhydroxyalkanoate synthase fusion, recombinant proteins can be first produced and sequestered on a natural resin, the polyhydroxyalkanoate (PHA) inclusions, then separated from contaminating host proteins via simple PHA bead isolation steps, and finally purified by specific release into the soluble fraction induced by a pH reduction. Results By translationally fusing a target protein to PHA synthase using a self-cleaving intein as linker, intracellular production of PHA beads was achieved. Upon isolation of respective PHA beads the soluble pure target protein was released by a simple pH shift to 6. The utility of this approach was exemplified by producing six target proteins, including Aequorea victoria green fluorescent protein (GFP), Mycobacterium tuberculosis vaccine candidate Rv1626, the immunoglobulin G (IgG) binding ZZ domain of protein A derived from Staphylococcus aureus, human tumor necrosis factor alpha (TNFα), human granulocyte colony-stimulating factor (G-CSF), and human interferon alpha 2b (IFNα2b). Conclusions Here a new method for production and purification of a tag-less protein was developed through intein cleavable polyhydroxyalkanoate synthase fusion. Pure target protein could be easily obtained without laborious downstream processing. Electronic supplementary material The online version of this article (10.1186/s12934-017-0799-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jinping Du
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand. .,Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia.
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27
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Kudoh K, Kubota G, Fujii R, Kawano Y, Ihara M. Exploration of the 1-deoxy-d-xylulose 5-phosphate synthases suitable for the creation of a robust isoprenoid biosynthesis system. J Biosci Bioeng 2017; 123:300-307. [DOI: 10.1016/j.jbiosc.2016.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 10/04/2016] [Accepted: 10/06/2016] [Indexed: 01/29/2023]
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28
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Zhang X, Wang K, Lin Q, Zheng M, Li Q, Li T, Hong Q, Zheng Q, Yu H, Gu Y, Li S, Xia N. A shared N-terminal hydrophobic tail for the formation of nanoparticulates. Nanomedicine (Lond) 2016; 11:2289-303. [PMID: 27499052 DOI: 10.2217/nnm-2016-0146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
AIM Nanoparticulate design is important for the production of nanotechnological materials and passive immunogens. Using lessons from our hepatitis E vaccine, we herein design protein-based nanoparticles through incorporation of an N-terminal hydrophobic tail (NHT, located on HEV ORF2 aa368-460). MATERIALS & METHODS Flu HA1, HIV gp41/gp120/p24, HBsAg and HPV16 L2 were fused with NHT, expressed in Escherichia coli and subjected to self-assembly in vitro. Nanosized particles were characterized by size-exclusion chromatography and negative electron microscopy. Immunogenicity was assessed in mice. RESULTS All the NHT-fused proteins spontaneously formed nanoparticulates and presented with immunogenicity approximately 2-log over their nonassembling forms. CONCLUSION Protein self-assembly provides an attractive means to create nanosized particles that bear specific antigens. Our strategy outlines a novel and shared method for the design of immunogenic nanoparticles.
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Affiliation(s)
- Xiao Zhang
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China.,National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
| | - Kaihang Wang
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Qingshan Lin
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Minghua Zheng
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Qiong Li
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Tingting Li
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Qiyang Hong
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China
| | - Qingbing Zheng
- National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
| | - Hai Yu
- National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
| | - Ying Gu
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China.,National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
| | - Shaowei Li
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China.,National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology & Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, China.,National Institute of Diagnostics & Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, China
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29
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Vu TTT, Jeong B, Krupa M, Kwon U, Song JA, Do BH, Nguyen MT, Seo T, Nguyen AN, Joo CH, Choe H. Soluble Prokaryotic Expression and Purification of Human Interferon Alpha-2b Using a Maltose-Binding Protein Tag. J Mol Microbiol Biotechnol 2016; 26:359-368. [PMID: 27463335 DOI: 10.1159/000446962] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 05/19/2016] [Indexed: 12/09/2022] Open
Abstract
Human interferon alpha-2b (IFNα-2b) has therapeutic applications as an antiviral and antiproliferative drug and has been used for a wide range of indications. Efficient production of IFNα-2b in Escherichia coli has been difficult because the protein tends to form inclusion bodies. This obstacle has garnered interest in efficiently expressing IFNα-2b and overcoming its poor solubility. In this study, seven N-terminal fusion partners - hexahistidine (His6), thioredoxin, glutathione S-transferase (GST), maltose-binding protein (MBP), N-utilization substance protein A, protein disulfide bond isomerase (PDI), and b'a' domain of PDI - were tested for soluble overexpression of codon-optimized IFNα-2b in E. coli. Low temperature increased the expression level of all of the tagged proteins except for the GST fusion. All the tags, except for His6 and GST, improved solubility. We purified IFNα-2b from the MBP-tagged fusion using immobilized metal affinity chromatography and anion exchange chromatography, and obtained a final yield of 7.2 mg from an initial 500-ml culture. The endotoxin level was 0.46 EU/µg. Biological activity was demonstrated using a luciferase assay, which showed a dose-dependent response with a calculated EC50 of 10.3 ± 5.9 pM. Our results demonstrate that using an MBP-tagged fusion is an efficient way to produce pure IFNα-2b.
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Affiliation(s)
- Thu Trang Thi Vu
- Department of Physiology and Bio-Medical Institute of Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
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Safary A, Moniri R, Hamzeh-Mivehroud M, Dastmalchi S. A strategy for soluble overexpression and biochemical characterization of halo-thermotolerant Bacillus laccase in modified E. coli. J Biotechnol 2016; 227:56-63. [PMID: 27059481 DOI: 10.1016/j.jbiotec.2016.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/30/2016] [Accepted: 04/05/2016] [Indexed: 02/06/2023]
Abstract
An efficient method was introduced for soluble expression of recombinant laccase (rpCotA(SL-1)) from a newly isolated halo-thermotolerant Bacillus sp. SL-1 in modified Escherichia coli, trxB2/gor2 mutant (Origami™ B (DE3)). The yield of purified soluble laccase in Origami strain under micro-aerobic condition was ∼20mg/L of bacterial culture, showing significant improvement over the laccase produced in E.coli BL21 strain under aerobic condition. The specific activity of 13U/mg for purified laccase produced in micro-aerobic condition was higher than that of 1.07U/mg observed for the purified enzyme obtained in aerobic condition in Origami. The kinetic Km and kcat parameters for laccase-induced oxidation reactions were 46μM and 23s(-1) for ABTS (2,2'-Azino-bis(3-ethylbenzthiazoline-6-sulphonic acid), and 19.6μM and 24s(-1) for SGZ (syringaldazine) substrates, respectively. The rpCotA(SL-1) displayed thermostability at 70°C and tolerance to specified concentrations of NaCl, NaN3, EDTA and SDS as inhibitors. The enzyme was relatively stable in the presence of different concentration of organic solvents, however the residual activity was adversely affected as the dipole moment of the solvents increase. Here we successfully report the production of soluble and functional laccase in Origami at the expression level suitable for industrial application.
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Affiliation(s)
- Azam Safary
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran; Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rezvan Moniri
- Anatomical Sciences Research Center, Kashan University of Medical Sciences, Kashan, Iran; Department of Microbiology and Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
| | - Maryam Hamzeh-Mivehroud
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Moon H, Bae Y, Kim H, Kang S. Plug-and-playable fluorescent cell imaging modular toolkits using the bacterial superglue, SpyTag/SpyCatcher. Chem Commun (Camb) 2016; 52:14051-14054. [DOI: 10.1039/c6cc07363h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Simple plug-and-playable fluorescent cell imaging modular toolkits are established and target cells are visualized with selective colors on demand.
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Affiliation(s)
- Hyojin Moon
- Department of Biological Sciences
- School of Life Sciences
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
| | - Yoonji Bae
- Department of Biological Sciences
- School of Life Sciences
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
| | - Hansol Kim
- Department of Biological Sciences
- School of Life Sciences
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
| | - Sebyung Kang
- Department of Biological Sciences
- School of Life Sciences
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan
- Korea
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32
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Development of next generation of therapeutic IFN-α2b via genetic code expansion. Acta Biomater 2015; 19:100-11. [PMID: 25769229 DOI: 10.1016/j.actbio.2015.03.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 02/08/2015] [Accepted: 03/03/2015] [Indexed: 01/04/2023]
Abstract
With the aim to overcome the heterogeneity associated with marketed IFN-α2b PEGylates and optimize the size of the PEG moiety and the site of PEGylation, we develop a viable and facile platform through genetic code expansion for PEGylation of IFN-α2b at any chosen site(s). This approach includes site-specific incorporation of an azide-bearing amino acid into IFN-α2b followed by orthogonal and stoichiometric conjugation of a variety of PEGs via a copper-free click reaction. By this approach, only the chosen site(s) within IFN-α2b is consistently PEGylated under mild conditions, leading to a single and homogenous conjugate. Furthermore, it makes the structure-activity relationship study of IFN-α2b possible by which the opposite effects of PEGylation on the biological and pharmacological properties are optimized. Upon re-examination of the PEGylated IFN-α2b isomers carrying different sizes of PEG at different sites, we find mono-PEGylates at H34, A74 and E107 with a 20-, 10- and 10-kDa PEG moiety, respectively, have both higher biological activities and better PK profiles than others. These might represent the direction for development of the next generation of PEGylated IFN-α2b.
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Khow O, Suntrarachun S. Strategies for production of active eukaryotic proteins in bacterial expression system. Asian Pac J Trop Biomed 2015; 2:159-62. [PMID: 23569889 DOI: 10.1016/s2221-1691(11)60213-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 08/20/2011] [Accepted: 09/01/2011] [Indexed: 11/30/2022] Open
Abstract
Bacteria have long been the favorite expression system for recombinant protein production. However, the flaw of the system is that insoluble and inactive proteins are co-produced due to codon bias, protein folding, phosphorylation, glycosylation, mRNA stability and promoter strength. Factors are cited and the methods to convert to soluble and active proteins are described, for example a tight control of Escherichia coli milieu, refolding from inclusion body and through fusion technology.
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Affiliation(s)
- Orawan Khow
- Queen Saovabha Memorial Institute, Thai Red Cross Society, Bangkok 10330, Thailand
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34
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An efficient strategy for heterologous expression and purification of active peptide hainantoxin-IV. PLoS One 2015; 10:e0117099. [PMID: 25647561 PMCID: PMC4315428 DOI: 10.1371/journal.pone.0117099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 12/18/2014] [Indexed: 11/19/2022] Open
Abstract
Hainantoxin-IV (HNTX-IV) from the venom of the spider Selenocosmia hainana is a potent antagonist that specifically inhibits the tetrodotoxin-sensitive (TTX-S) sodium channels. The toxin peptide consists of 35 amino acids and adopts a typical inhibitory cystine knot (ICK) motif. To obtain adequate HNTX-IV peptides for further insight into the structure-activity relationships of the toxin, a novel strategy including cloning, expression and purification was developed in an E. coli expression system. For this purpose, a seamless restriction-free (RF) cloning method was employed for the construction of an expression vector to avoid introducing unwanted sequences into the target gene. Furthermore, the solubility of recombinant HNTX-IV could be promoted efficiently by the combination of a glutathione S-transferase (GST) tag and a small ubiquitin-related modifier (SUMO) tag. Finally, an affinity-chromatography-free purification strategy was developed by cut-off dialysis tubing combined with trichloroacetic acid (TCA) extraction. Further HPLC purification yielded recombinant, tag-free HNTX-IV with high yield and purity. The molecular weight of recombinant HNTX-IV (rHNTX-IV) is identical to its theoretical value according to Matrix-Assisted Laser Desorption / Ionization Time of Flight Mass Spectrometry (MALDI-TOF-MS) analysis. The recombinant toxin has similar activity (IC50 value of 120 nM) on the tetrodotoxin-sensitive (TTX-S) sodium channels in adult rat dorsal root ganglion (DRG) neurons to native toxins. In the report, an efficient and cost-effective strategy for producing rHNTX-IV was developed, which paved the way for the further study of structure-activity relationships of rHNTX-IV and its pharmaceutical applications.
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35
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Kuruganti S, Accavitti-Loper MA, Walter MR. Production and characterization of thirteen human type-I interferon-α subtypes. Protein Expr Purif 2014; 103:75-83. [PMID: 25149396 DOI: 10.1016/j.pep.2014.08.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 08/07/2014] [Accepted: 08/11/2014] [Indexed: 01/04/2023]
Abstract
Thirteen human interferon-α (IFNα) subtypes were expressed in Escherichiacoli and purified using an N-terminal affinity tag from the prodomain of subtilisin. IFNα subtypes were expressed in soluble form and purified from cell lysates or refolded and purified from inclusion bodies. Proteins produced by either protocol exhibited biological activities equal to or greater than commercially prepared IFNα preparations. The IFNαs were used to produce an anti-IFNα16 antibody (MAb-1B12) that specifically neutralized the biological activity of IFNα16, but not the 12 other IFNαs. Using MAb-1B12, and a previously generated IFNAR1/IFNAR2-FChk heterodimer, an assay was developed to determine total type I IFN biological activity and IFNα16-derived biological activity in an unknown sample.
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Affiliation(s)
- Srilalitha Kuruganti
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | | | - Mark R Walter
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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36
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Peciak K, Tommasi R, Choi JW, Brocchini S, Laurine E. Expression of soluble and active interferon consensus in SUMO fusion expression system in E. coli. Protein Expr Purif 2014; 99:18-26. [PMID: 24680730 DOI: 10.1016/j.pep.2014.03.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2013] [Revised: 03/15/2014] [Accepted: 03/17/2014] [Indexed: 12/24/2022]
Abstract
Protein production can be improved if methods for soluble protein expression are developed. Interferon consensus (IFN-con) is used to treat hepatitis C. IFN-con has superior activity compared to other clinically used interferon α subtypes. However IFN-con is a challenging protein to produce in a soluble form using an Escherichia coli expression system. Here we describe the expression of soluble and active recombinant IFN-con in E. coli. The IFN-con gene sequence was optimised for expression in E. coli, which was then cloned into the Champion™ pET SUMO expression vector downstream of the SUMO fusion protein and under strong T7lac promoter. The SUMO-IFN-con fusion protein was efficiently expressed using the SHuffle™ E. coli strain and existed in soluble form as 86-88% of the total IFN-con. After removal of the SUMO fusion partner, approximately 50mg of recombinant IFN-con of at least 98% purity (by RP-HPLC) was obtained from a 1L fermentation culture. Using an A549/EMCV antiviral assay, the specific activity of the recombinant IFN-con was determined to be 960×10(6) IU/mg as calculated to NIBSC standard for IFN-con (3×10(5)pfu/mL virus titre). Comparison of the antiviral activity of the produced IFN-con to IFN α-2a showed that IFN-con displays 2.8 times greater activity, which is in good agreement with what has been reported in the literature for pure protein. IFN-con expression in a soluble form from E. coli allowed us to use a simple, two-step purification process to yield highly pure and active IFN-con which is more efficient than obtaining IFN-con from inclusion bodies.
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Affiliation(s)
- Karolina Peciak
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; PolyTherics Ltd., The London Bioscience Innovation Centre, 2 Royal College Street, London NW1 0NH, UK
| | - Rita Tommasi
- PolyTherics Ltd., The London Bioscience Innovation Centre, 2 Royal College Street, London NW1 0NH, UK
| | - Ji-won Choi
- PolyTherics Ltd., The London Bioscience Innovation Centre, 2 Royal College Street, London NW1 0NH, UK
| | - Steve Brocchini
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; PolyTherics Ltd., The London Bioscience Innovation Centre, 2 Royal College Street, London NW1 0NH, UK
| | - Emmanuelle Laurine
- PolyTherics Ltd., The London Bioscience Innovation Centre, 2 Royal College Street, London NW1 0NH, UK.
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37
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Construction of a novel liver-targeting fusion interferon by incorporation of a Plasmodium region I-plus peptide. BIOMED RESEARCH INTERNATIONAL 2014; 2014:261631. [PMID: 24575402 PMCID: PMC3915749 DOI: 10.1155/2014/261631] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Accepted: 09/12/2013] [Indexed: 01/12/2023]
Abstract
Interferon alpha (IFN α) exerts a multiplicity of biological actions including antiviral, immunomodulatory, and antiproliferative effects. Administration of IFN α is the current treatment for chronic hepatitis B; however, therapy outcome has not been completely satisfactory. The systemic effects of IFN α may account for its low in vivo biological activity and multiple adverse events. The purpose of this study was to design a novel liver-targeting fusion interferon (IFN-CSP) by fusing IFN α2b with a Plasmodium region I-plus peptide, thus targeting the drug specifically to the liver. The DNA sequence encoding IFN-CSP was constructed using improved splicing by overlapping extension-PCR method, and then cloned into the pET-21b vector for protein expression in E. coli BL21 (DE3). The recombinant protein was expressed as a His-tagged protein and purified using a combination of Ni affinity and HiTrap affinity chromatography at a purity of over 95%. The final yield of biologically active IFN-CSP was up to 270 mg/L culture. The purified recombinant protein showed anti-HBV activity and liver-targeting potentiality in vitro. These data suggests that the novel fusion interferon IFN-CSP may be an excellent candidate as a liver-targeting anti-HBV agent.
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38
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Tao YL, Yang DH, Zhang YT, Zhang Y, Wang ZQ, Wang YS, Cai SQ, Liu SL. Cloning, expression, and characterization of the β-glucosidase hydrolyzing secoisolariciresinol diglucoside to secoisolariciresinol from Bacteroides uniformis ZL1. Appl Microbiol Biotechnol 2013; 98:2519-31. [DOI: 10.1007/s00253-013-5111-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 06/06/2013] [Accepted: 07/03/2013] [Indexed: 12/16/2022]
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39
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Hong SY, Jung EJ, Joo JC, Yoo YJ. Soluble expression of Candida antarctica lipase B in Escherichia coli by fusion with Skp chaperone. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-012-0093-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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An improved method for rapid preparation of oligodendrocyte-specific rabbit polyclonal antibody. BIOTECHNOL BIOPROC E 2011. [DOI: 10.1007/s12257-010-0361-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Singh AB, Sharma AK, Mukherjee KJ. Analyzing the metabolic stress response of recombinant Escherichia coli cultures expressing human interferon-beta in high cell density fed batch cultures using time course transcriptomic data. MOLECULAR BIOSYSTEMS 2011; 8:615-28. [PMID: 22134216 DOI: 10.1039/c1mb05414g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fed batch cultures expressing recombinant interferon beta under the T7 promoter were run with different exponential feeding rates of a complex substrate and induced at varying cell densities. Post-induction profiles of the specific product formation rates showed a strong dependence on the specific growth rate with the maximum product yield obtained at 0.2 h(-1). A study of the relative transcriptomic profiles as a function of pre-induction μ was therefore done to provide insight into the role of cellular physiology in enhancing recombinant protein expression. Hierarchical clustering analysis of the significantly regulated genes allowed us to identify biologically important groups of genes which fall under specific master regulators. The groups were: rpoH, ArcB, CreB, Lrp, RelA, Fis and Hfq. The response of these regulators, which exert a feedback control on the growth and product formation rates correlated well with the expression levels obtained. Thus at the optimum pre-induction μ, the alternative sigma factors and ribosomal machinery genes did not get depressed till the 6th hour post-induction unlike at other specific growth rates, demonstrating a critical role for the genes in sustaining recombinant protein expression.
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Affiliation(s)
- Anuradha B Singh
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
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42
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Recombinant production of antimicrobial peptides in Escherichia coli: A review. Protein Expr Purif 2011; 80:260-7. [DOI: 10.1016/j.pep.2011.08.001] [Citation(s) in RCA: 203] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Revised: 07/27/2011] [Accepted: 08/01/2011] [Indexed: 11/20/2022]
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43
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Park DW, Kim SS, Nam MK, Kim GY, Kim J, Rhim H. Improved recovery of active GST-fusion proteins from insoluble aggregates: solubilization and purification conditions using PKM2 and HtrA2 as model proteins. BMB Rep 2011; 44:279-84. [PMID: 21524355 DOI: 10.5483/bmbrep.2011.44.4.279] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The glutathione S-transferase (GST) system is useful for increasing protein solubility and purifying soluble GST fusion proteins. However, purifying half of the GST fusion proteins is still difficult, because they are virtually insoluble under non-denaturing conditions. To optimize a simple and rapid purification condition for GST-pyruvate kinase muscle 2 (GST-PKM2) protein, we used 1% sarkosyl for lysis and a 1:200 ratio of sarkosyl to Triton X-100 (S-T) for purification. We purified the GST-PKM2 protein with a high yield, approximately 5 mg/L culture, which was 33 times higher than that prepared using a conventional method. Notably, the GST-high-temperature requirement A2 (GST-HtrA2) protein, used as a model protein for functional activity, fully maintained its proteolytic activity, even when purified under our S-T condition. This method may be useful to apply to other biologically important proteins that become highly insoluble in the prokaryotic expression system.
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Affiliation(s)
- Dae-Wook Park
- Department of Biomedical Sciences, College of Medicine, The Catholic University of Korea, Seoul 137-701, Korea
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44
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Makino T, Skretas G, Georgiou G. Strain engineering for improved expression of recombinant proteins in bacteria. Microb Cell Fact 2011; 10:32. [PMID: 21569582 PMCID: PMC3120638 DOI: 10.1186/1475-2859-10-32] [Citation(s) in RCA: 139] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 05/14/2011] [Indexed: 01/17/2023] Open
Abstract
Protein expression in Escherichia coli represents the most facile approach for the preparation of non-glycosylated proteins for analytical and preparative purposes. So far, the optimization of recombinant expression has largely remained a matter of trial and error and has relied upon varying parameters, such as expression vector, media composition, growth temperature and chaperone co-expression. Recently several new approaches for the genome-scale engineering of E. coli to enhance recombinant protein expression have been developed. These methodologies now enable the generation of optimized E. coli expression strains in a manner analogous to metabolic engineering for the synthesis of low-molecular-weight compounds. In this review, we provide an overview of strain engineering approaches useful for enhancing the expression of hard-to-produce proteins, including heterologous membrane proteins.
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Affiliation(s)
- Tomohiro Makino
- Department of Chemical Engineering, The University of Texas at Austin, 78712, USA
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45
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Ohta T, Ueda Y, Ito K, Miura C, Yamashita H, Miura T, Tozawa Y. Anti-viral effects of interferon administration on sevenband grouper, Epinephelus septemfasciatus. FISH & SHELLFISH IMMUNOLOGY 2011; 30:1064-1071. [PMID: 21316457 DOI: 10.1016/j.fsi.2011.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2010] [Revised: 12/24/2010] [Accepted: 02/04/2011] [Indexed: 05/30/2023]
Abstract
Interferon (IFN) plays crucial roles in innate immune responses against viral infections. In the present study, we report cloning and characterization of the IFN gene from the sevenband grouper (Epinephelus septemfasciatus), and the anti-viral effects of its recombinant IFN protein in vivo. The isolated cDNA from sevenband grouper IFN encoded a protein consisting of 178 amino acids, and its first 22 amino acids represented a putative signal peptide. We named the identified sevenband grouper IFN gene as SgIFNa1 based on the result from phylogenetic analysis that categorized the deduced protein sequence into fish IFNa family. The expression of SgIFNa1 mRNA in the head kidney cells was induced by synthetic Poly(I:C), which is known as an inducer of IFN. It has also been confirmed that injection of recombinant SgIFNa1 protein (rSgIFNa1) upregulates expression of the Mx gene, which is known as an IFN-responsive gene, in head kidney cells. Moreover, we observed that preliminarily injection of rSgIFNa1 provided significant protection against a lethal challenge of nervous necrosis virus (NNV), which is a serious disease of sevenband grouper. These results demonstrate that SgIFNa1 has anti-viral activity and the administration of rSgIFNa1 to sevenband grouper is effective in preventing severe symptom development after NNV infection.
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Affiliation(s)
- Takashi Ohta
- Cell-Free Science and Technology Research Center, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan
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46
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Kakeshita H, Kageyama Y, Ara K, Ozaki K, Nakamura K. Propeptide of Bacillus subtilis amylase enhances extracellular production of human interferon-α in Bacillus subtilis. Appl Microbiol Biotechnol 2010; 89:1509-17. [DOI: 10.1007/s00253-010-2954-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 10/12/2010] [Accepted: 10/14/2010] [Indexed: 11/28/2022]
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47
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Sense and nonsense from a systems biology approach to microbial recombinant protein production. Biotechnol Appl Biochem 2010; 55:9-28. [PMID: 20044926 DOI: 10.1042/ba20090174] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The 'Holy Grail' of recombinant protein production remains the availability of generic protocols and hosts for the production of even the most difficult target products. The present review provides first an explanation why the shock imposed on bacteria using a standard induction protocol not only arrests growth, but also decreases the number of colony-forming units by several orders of magnitude. Particular emphasis is placed on findings of numerous genome-wide transcriptomic studies that highlight cellular stress, in which the general stress, heat-shock and stringent responses are the underlying basis for the manifestation of the deterioration of cell physiology. We then review common approaches used to solve bottlenecks in protein folding and post-translational modification that result in recombinant protein deposition in cytoplasmic inclusion bodies. Finally, we suggest a generic approach to process design that minimizes stress on the production host and a strategy for isolating improved hosts.
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48
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Retnoningrum DS, Ningrum RA, Kurniawan YN, Indrayati A, Rachmawati H. Construction of synthetic open reading frame encoding human interferon alpha 2b for high expression in Escherichia coli and characterization of its gene product. J Biotechnol 2010; 145:193-8. [DOI: 10.1016/j.jbiotec.2009.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2009] [Revised: 10/01/2009] [Accepted: 11/09/2009] [Indexed: 11/26/2022]
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49
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Improvement of soluble recombinant interferon-α expression by methyl α-D-glucopyranoside in araBAD promoter system of Escherichia coli. BIOTECHNOL BIOPROC E 2009. [DOI: 10.1007/s12257-008-0270-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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50
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Tian ZG, Dong TT, Yang YL, Teng D, Wang JH. Expression of antimicrobial peptide LH multimers in Escherichia coli C43(DE3). Appl Microbiol Biotechnol 2009; 83:143-9. [PMID: 19205689 DOI: 10.1007/s00253-009-1893-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2008] [Revised: 01/22/2009] [Accepted: 01/22/2009] [Indexed: 11/26/2022]
Abstract
The tandem repeats of LFB15(W4,10)-HP(4-16) (LH) gene were cloned into vector pET32a(+) for recombinant expression in Escherichia coli. The E. coli C43(DE3) was successfully used as the expression host to avoid the cell death during induction in E. coli BL21(DE3). Fusion LH dimer was expressed as inclusion body at a portion of 35% of total cell protein and could be well purified by Ni(2+)-chelating chromatography. The recombinant LH was released by the cleavage of 50% formic acid, and its yield reached 11.3 mg/l with purity of 95%. The MIC(50) of 3.6 and 1.9 microM of recombinant LH against E. coli CMCC 44102 and Bacillus subtilis ATCC 6633 were determined, respectively. The results demonstrated that expression of tandem LH gene in E. coli C43(DE3) and formic acid cleavage would provide a potent efficient platform for the production of interested peptides.
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Affiliation(s)
- Zi-gang Tian
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, 12 Zhongguancun Nandajie St., Haidian District, Beijing 100081, People's Republic of China
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