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In Silico Screening of Putative Corynebacterium pseudotuberculosis Antigens and Serological Diagnosis for Caseous Lymphadenitis in Sheep by Enzyme-Linked Immunosorbent Assay. Vet Med Int 2021; 2021:9931731. [PMID: 34373777 PMCID: PMC8349269 DOI: 10.1155/2021/9931731] [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: 03/23/2021] [Accepted: 07/17/2021] [Indexed: 11/18/2022] Open
Abstract
Corynebacterium pseudotuberculosis is the etiologic agent of Caseous Lymphadenitis (CLA), a disease leading to severe damage in sheep and goats farming due to the lack of serological diagnosis, treatment, and effective prophylaxis. In this context, several strategies in an attempt to discover new antigens to compose diagnosis assays or vaccines are fundamental. Therefore, this study aimed to use bioinformatics software to evaluate the critical chemical characteristics of unknown proteins of C. pseudotuberculosis by selecting them for heterologous expression in Escherichia coli. For this purpose, six protein sequences of ascorbate transporter subunit, UPF protein, MMPL family transporter, Ribonuclease, Iron ABC transporter domain-containing permease, and fimbrial subunit were obtained. In silico analyses were performed using amino acid sequences to access immunodominant epitopes and their antigenic and allergenic potential and physicochemical characterization. The expressed proteins were used as an antigen for serological diagnosis by ELISA. All proteins showed distinct immunodominant epitopes and potential antigenic characteristics. The only proteins expressed were PTS and Ribonuclease. In parallel, we expressed CP40 and all were used with ELISA antigen in 49 CLA positive sera and 26 CLA negative sera. The proteins alone showed 100% sensitivity and 96.2%, 92.3%, and 88.5% specificity for rPTS, rRibonuclease, and rCP40, respectively. When proteins were combined, they showed 100% sensitivity and 84.6%, 92.3%, 88.5%, and 92.3% specificity for rPTS/rCp40, rRibonuclease/rCP40, rPTS/rRibonuclease, and rPTS/rRibonuclease/rCP40, respectively. The results of this study show an excellent correlation of sensitivity and specificity with all proteins. None of the specificity values preclude the potential of rPTS, rRibonuclease, or rCP40 for use in ELISA diagnostic assays since the results of this work are superior to those of other studies on CLA diagnosis described in the literature.
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Jain M, Yadav P, Joshi B, Joshi A, Kodgire P. Recombinant organophosphorus hydrolase (OPH) expression in E. coli for the effective detection of organophosphate pesticides. Protein Expr Purif 2021; 186:105929. [PMID: 34139322 DOI: 10.1016/j.pep.2021.105929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 05/18/2021] [Accepted: 06/07/2021] [Indexed: 12/17/2022]
Abstract
Accumulation and exposure of organophosphate pesticides are of great concern today owing to their abundant usage and potential health hazards. Harmful effects of organophosphate pesticide exposure and limitations of the available treatment methods necessitate the development of reliable, selective, cost-effective, and sensitive methods of detection. We developed a novel biosensor based on the enzymatic action of recombinant organophosphorus hydrolase (OPH) expressed in E. coli. We report the development of colorimetric biosensors made of His-Nus-OPH as well as His-Nus-OPH loaded alginate microspheres. The colorimetric detection method developed using solution-phase and alginate-encapsulated His-Nus-OPH exhibited detection limits of 0.045 and 0.039 mM, respectively, for ethyl paraoxon, and 0.101 and 0.049 mM, respectively, for methyl parathion. Additionally, fluorescence measurement using pH-sensitive fluorescein isothiocyanate (FITC) was used to sense the quantity of organophosphorus pesticides. The fluorometric detection method using solution-phase His-Nus-OPH, with ethyl paraoxon and methyl parathion as the substrate, reveals the lower limit of detection as 0.014 mM and 0.044 mM, respectively. Our results demonstrate the viability of His-Nus-OPH for OP detection with good sensitivity, LOD, and linear range. We report the first use of N-terminal His-NusA-tagged OPH, which enhances solubility significantly and presents a significant advance for the scientific community.
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Affiliation(s)
- Monika Jain
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Simrol, Khandwa Road, Indore, 453552, India
| | - Priyanka Yadav
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Simrol, Khandwa Road, Indore, 453552, India
| | - Bhavana Joshi
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Simrol, Khandwa Road, Indore, 453552, India
| | - Abhijeet Joshi
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Simrol, Khandwa Road, Indore, 453552, India.
| | - Prashant Kodgire
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Simrol, Khandwa Road, Indore, 453552, India.
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Holič R, Šťastný D, Griač P. Sec14 family of lipid transfer proteins in yeasts. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158990. [PMID: 34118432 DOI: 10.1016/j.bbalip.2021.158990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 11/25/2022]
Abstract
The hydrophobicity of lipids prevents their free movement across the cytoplasm. To achieve highly heterogeneous and precisely regulated lipid distribution in different cellular membranes, lipids are transported by lipid transfer proteins (LTPs) in addition to their transport by vesicles. Sec14 family is one of the most extensively studied groups of LTPs. Here we provide an overview of Sec14 family of LTPs in the most studied yeast Saccharomyces cerevisiae as well as in other selected non-Saccharomyces yeasts-Schizosaccharomyces pombe, Kluyveromyces lactis, Candida albicans, Candida glabrata, Cryptococcus neoformans, and Yarrowia lipolytica. Discussed are specificities of Sec14-domain LTPs in various yeasts, their mode of action, subcellular localization, and physiological function. In addition, quite few Sec14 family LTPs are target of antifungal drugs, serve as modifiers of drug resistance or influence virulence of pathologic yeasts. Thus, they represent an important object of study from the perspective of human health.
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Affiliation(s)
- Roman Holič
- Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Dominik Šťastný
- Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Peter Griač
- Institute of Animal Biochemistry and Genetics, Centre of Biosciences, Slovak Academy of Sciences, Bratislava, Slovakia.
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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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Restrepo-Pineda S, Pérez NO, Valdez-Cruz NA, Trujillo-Roldán MA. Thermoinducible expression system for producing recombinant proteins in Escherichia coli: advances and insights. FEMS Microbiol Rev 2021; 45:6223457. [PMID: 33844837 DOI: 10.1093/femsre/fuab023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/09/2021] [Indexed: 12/13/2022] Open
Abstract
Recombinant protein (RP) production from Escherichia coli has been extensively studied to find strategies for increasing product yields. The thermoinducible expression system is commonly employed at the industrial level to produce various RPs which avoids the addition of chemical inducers, thus minimizing contamination risks. Multiple aspects of the molecular origin and biotechnological uses of its regulatory elements (pL/pR promoters and cI857 thermolabile repressor) derived from bacteriophage λ provide knowledge to improve the bioprocesses using this system. Here, we discuss the main aspects of the potential use of the λpL/pR-cI857 thermoinducible system for RP production in E. coli, focusing on the approaches of investigations that have contributed to the advancement of this expression system. Metabolic and physiological changes that occur in the host cells caused by heat stress and by RP overproduction are also described. Therefore, the current scenario and the future applications of systems that use heat to induce RP production is discussed to understand the relationship between the activation of the bacterial heat shock response, RP accumulation, and its possible aggregation to form inclusion bodies.
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Affiliation(s)
- Sara Restrepo-Pineda
- Unidad de Bioprocesos, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Ciudad de México, México
| | - Néstor O Pérez
- Probiomed S.A. de C.V. Planta Tenancingo, Cruce de Carreteras Acatzingo-Zumpahuacan SN, 52400 Tenancingo, Estado de México, México
| | - Norma A Valdez-Cruz
- Unidad de Bioprocesos, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Ciudad de México, México
| | - Mauricio A Trujillo-Roldán
- Unidad de Bioprocesos, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, 04510, Ciudad de México, México
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56
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Zhao H, Xu Y, Li X, Li G, Zhao H, Wang L. Expression and Purification of a Recombinant Enterotoxin Protein Using Different E. coli Host Strains and Expression Vectors. Protein J 2021; 40:245-254. [PMID: 33721189 DOI: 10.1007/s10930-021-09973-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2021] [Indexed: 11/24/2022]
Abstract
Infection by Enterotoxigenic Escherichia coli is a common cause of diarrhea in animals. The development of vaccines against enterotoxins can effectively control the infection. We have previously constructed a recombinant antigen SLS fused by STa, LTB and STb enterotoxin and it showed a high immunogenicity in mice. Herein, we evaluated the expression of SLS in three different E. coli cells with corresponding plasmids. SLS proteins expressed in E. coli BL21 (DE3) and Rosetta-gami B (DE3) were aggregated as inclusion bodies, and the proteins solubility were not obviously promoted in low temperature combined with adjustment of inducer concentration. In contrast, SLS protein with maltose-binding protein (MBP) yielded from TB1 (DE3) cells were partially soluble. After increasing the IPTG concentration in the medium up to 2 mM and incubating at 37 ℃ for 4 h, the soluble protein yield reached the highest level (4.533 mg/0.2 L culture), which was significantly higher than the expression of SLS protein in Rosetta-gami B (DE3) (P < 0.05). Therefore, the TB1-pMAL expression system can be used for mass extraction and purification of SLS antigen prior to measuring its immunogenicity in pregnant mammals.
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Affiliation(s)
- Hong Zhao
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Yongping Xu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.,Dalian SEM Bio-Engineering Technology Co. Ltd., Dalian, 116620, China
| | - Xiaoyu Li
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Gen Li
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Haofei Zhao
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Lili Wang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
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Mirzadeh A, Jafarihaghighi F, Kazemirad E, Sabzevar SS, Tanipour MH, Ardjmand M. Recent Developments in Recombinant Proteins for Diagnosis of Human Fascioliasis. Acta Parasitol 2021; 66:13-25. [PMID: 32974849 DOI: 10.1007/s11686-020-00280-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
Fascioliasis is an important neglected tropical disease that causes severe injury to the bile ducts and liver. Therefore, a rapid and accurate method for detection of Fasciola hepatica infection plays a vital role in early treatment. Currently, the diagnosis of fascioliasis is mainly conducted via serological tests using the excretory/secretory (E/S) products, which might cross-react with antigens from other helminth parasitic diseases. Hence, the development of serodiagnosis test using recombinant antigens may contribute to differentiate fascioliasis from other helminth infections. In the past 20 years, many attempts have been made to exert different F. hepatica recombinant antigens to obtain a well-established standard assay with high accuracy. In this review, we address recent studies that refer to the development of serodiagnosis tests for diagnosis of human fascioliasis based on the candidate recombinant antigens produced by different approaches. Meanwhile, in the present review, some main factors have been highlighted to improve the accuracy of diagnostic tests such as the effect of refolding methods to recover antigens' tertiary structure as well as applying a mixture of recombinant antigens with the highest sensitivity and specificity to improve the accuracy of diagnostic tests.
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Affiliation(s)
- Abolfazl Mirzadeh
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Farid Jafarihaghighi
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, 1584743311, Tehran, Iran
| | - Elham Kazemirad
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Shokouh Shahrokhi Sabzevar
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Hossein Tanipour
- Department of Biochemistry and Molecular Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Mehdi Ardjmand
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, 1584743311, Tehran, Iran
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Hepatitis B core-based virus-like particles: A platform for vaccine development in plants. ACTA ACUST UNITED AC 2021; 29:e00605. [PMID: 33732633 PMCID: PMC7937989 DOI: 10.1016/j.btre.2021.e00605] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 02/07/2023]
Abstract
Virus-like particles (VLPs) are a class of structures formed by the self-assembly of viral capsid protein subunits and contain no infective viral genetic material. The Hepatitis B core (HBc) antigen is capable of assembling into VLPs that can elicit strong immune responses and has been licensed as a commercial vaccine against Hepatitis B. The HBc VLPs have also been employed as a platform for the presentation of foreign epitopes to the immune system and have been used to develop vaccines against, for example, influenza A and Foot-and-mouth disease. Plant expression systems are rapid, scalable and safe, and are capable of providing correct post-translational modifications and reducing upstream production costs. The production of HBc-based virus-like particles in plants would thus greatly increase the efficiency of vaccine production. This review investigates the application of plant-based HBc VLP as a platform for vaccine production.
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Bacterial expression of a snake venom metalloproteinase inhibitory protein from the North American opossum (D.virginiana). Toxicon 2021; 194:1-10. [PMID: 33581173 DOI: 10.1016/j.toxicon.2021.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/21/2020] [Accepted: 01/20/2021] [Indexed: 11/20/2022]
Abstract
A variety of opossum species are resistant to snake venoms due to the presence of antihemorrhagic and antimyotoxic acidic serum glycoproteins that inhibit several toxic venom components. Two virtually identical antihemorrhagic proteins isolated from either the North American opossum (D. virginiana) or the South American big-eared opossum (D. aurita), termed oprin or DM43 respectively, inhibit specific snake venom metalloproteinases (SVMPs). A better understanding of the structure of these proteins may provide useful insight to determine their mechanism of action and for the development of therapeutics against the global health concern of snake-bite envenomation. The aim of this work is to produce a recombinant snake venom metalloproteinase inhibitor (SVMPI) similar to the above opossum proteins in Escherichia coli and determine if this bacterially produced protein inhibits the proteolytic properties of Western Diamondback rattlesnake (C. atrox) venom. The resulting heterologous SVMPI was produced with either a 6-Histidine or maltose binding protein (MBP) affinity tag on either the C-terminus or N-terminus of the protein, respectively. The presence of the solubility enhancing MBP affinity tag resulted in significantly more soluble protein expression. The inhibitory activity was measured using two complementary assays and the MBP labeled SVMPI showed 7-fold less activity as compared to the 6-Histidine labeled SVMPI. Thus, the bacterially derived SVMPI with an unlabeled N-terminus showed high inhibitory activity (IC50 = 4.5 μM). The use of a solubility enhancing MBP fusion protein construct appears to be a productive way to express sufficient quantities of this mammalian protein in E. coli for further study.
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60
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Rezaei-Moshaei M, Dehestani A, Bandehagh A, Pakdin-Parizi A, Golkar M, Heidari-Japelaghi R. Recombinant pebulin protein, a type 2 ribosome-inactivating protein isolated from dwarf elder (Sambucus ebulus L.) shows anticancer and antifungal activities in vitro. Int J Biol Macromol 2021; 174:352-361. [PMID: 33497693 DOI: 10.1016/j.ijbiomac.2021.01.129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/11/2021] [Accepted: 01/19/2021] [Indexed: 12/28/2022]
Abstract
In this study, encoding sequence of a new type 2 RIP (pebulin) was isolated and cloned from dwarf elder (Sambucus ebulus L.) native to the northern regions of Iran. The nucleotide sequence of pebulin was ligated to the pET-28a(+) expression plasmid and cloned into the E. coli strain BL21 (DE3) in order to express heterologously of recombinant protein. The recombinant pebulin protein was mainly produced in the form of insoluble inclusion bodies probably because to absence of N-glycosylation process in E. coli. Therefore, in order to increase the expression of recombinant protein in soluble form, co-expression of the target protein with the pG-Tf2 chaperone plasmid and incubation of bacterial culture under low temperature were used to enhance solubility and accumulation of recombinant protein. After purification of the recombinant protein using affinity chromatography method, the bioactivity of pebulin was analyzed by hemagglutination, anticancer, and antifungal assays. The results of the hemagglutination assay showed that purified pebulin agglutinated erythrocytes in all human blood groups. In addition, pebulin considerably inhibited the proliferation of cancer cell lines MCF-7 and HT-29 in a time- and dose-dependent manner and indicated remarkably growth-inhibiting effect against the plant pathogenic fungi such as Alternaria solani and Fusarium oxysporum.
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Affiliation(s)
| | - Ali Dehestani
- Genetics and Agricultural Biotechnology Institute of Tabarestan, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
| | - Ali Bandehagh
- Department of Plant Breeding and Biotechnology, the University of Tabriz, Tabriz, Iran
| | - Ali Pakdin-Parizi
- Genetics and Agricultural Biotechnology Institute of Tabarestan, Sari Agricultural Sciences and Natural Resources University, Sari, Iran
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Liao Y, Ni Z, Wu J, Li Z, Ge Y, Chen X, Yao J. Effect of acetate metabolism modulation on 2'-fucosyllactose production in engineered Escherichia coli. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2021.1885996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Yingxue Liao
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Scinece Island Branch, Graduate School of USTC, Hefei, PR China
| | - Zhijian Ni
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Scinece Island Branch, Graduate School of USTC, Hefei, PR China
| | - Jinyong Wu
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Huainan New Energy Research Center, Institute of Plasma Physics, Chinese Academy of Sciences, Huainan, Anhui, PR China
| | - Zhongkui Li
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Scinece Island Branch, Graduate School of USTC, Hefei, PR China
| | - Yuanfei Ge
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Scinece Island Branch, Graduate School of USTC, Hefei, PR China
| | - Xiangsong Chen
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Huainan New Energy Research Center, Institute of Plasma Physics, Chinese Academy of Sciences, Huainan, Anhui, PR China
| | - Jianming Yao
- Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, PR China
- Scinece Island Branch, Graduate School of USTC, Hefei, PR China
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Qassas MK, Skhal D, Natouf AH, Abbady AQ. Optimizing the expression of an anti- Leishmania nanobody ‘ALNb18’ produced free or fused with super folder GFP. BIOTECHNOL BIOTEC EQ 2021. [DOI: 10.1080/13102818.2022.2044381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Mohamed Karam Qassas
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Damascus University, Damascus, Syria
| | - Dania Skhal
- Department of Animal Biology, Science Collage, Damascus University, Damascus, Syria
| | - Abdul Hakim Natouf
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Damascus University, Damascus, Syria
| | - Abdul Qader Abbady
- Division of Molecular Biomedicine, Department of Molecular Biology and Biotechnology, Atomic Energy Commission of Syria (AECS), Damascus, Syria
- Department of Biology and Medical Science, Faculty of Pharmacy, International University for Science and Technology (IUST), Damascus, Syria
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Zou Y, Chen T. Engineered Akkermansia muciniphila: A promising agent against diseases (Review). Exp Ther Med 2020; 20:285. [PMID: 33209129 PMCID: PMC7668130 DOI: 10.3892/etm.2020.9415] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 09/15/2020] [Indexed: 12/23/2022] Open
Abstract
Achieving a harmonious gut microbial ecosystem has been hypothesized to be a successful method for alleviating metabolic disorders. The administration of probiotics, such as Lactobacillus and Bifidobacteria, is a known traditional and safe pathway to regulate human commensal microbes. With advancements in genetic sequencing and genetic editing tools, more bacteria are able to function as engineered probiotics with multiple therapeutic properties. As one of the next-generation probiotic candidates, Akkermansia muciniphila (A. muciniphila) has been discovered to enhance the gut barrier function and moderate inflammatory responses, exhibit improved effects with pasteurization and display beneficial probiotic effects in individuals with obesity, type 2 diabetes, atherosclerosis and autism-related gastrointestinal disturbances. In view of this knowledge, the present review aimed to summarize the effects of A. muciniphila in the treatment of metabolic disorders and to discuss several mature recombination systems for the genetic modification of A. muciniphila. From gaining an enhanced understanding of its genetic background, ingested A. muciniphila is expected to be used in various applications, including as a diagnostic tool, and in the site-specific delivery of therapeutic drugs.
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Affiliation(s)
- Yixuan Zou
- Institute of Translational Medicine, National Engineering Research Center for Bioengineering Drugs and Technologies, Nanchang University, Nanchang, Jiangxi 330031, P.R. China
| | - Tingtao Chen
- Institute of Translational Medicine, National Engineering Research Center for Bioengineering Drugs and Technologies, Nanchang University, Nanchang, Jiangxi 330031, P.R. China
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Ndawula C, Tabor AE. Cocktail Anti-Tick Vaccines: The Unforeseen Constraints and Approaches toward Enhanced Efficacies. Vaccines (Basel) 2020; 8:E457. [PMID: 32824962 PMCID: PMC7564958 DOI: 10.3390/vaccines8030457] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022] Open
Abstract
Ticks are second to mosquitoes as vectors of disease. Ticks affect livestock industries in Asia, Africa and Australia at ~$1.13 billion USD per annum. For instance, 80% of the global cattle population is at risk of infestation by the Rhipicephalus microplus species-complex, which in 2016 was estimated to cause $22-30 billion USD annual losses. Although the management of tick populations mainly relies on the application of acaricides, this raises concerns due to tick resistance and accumulation of chemical residues in milk, meat, and the environment. To counteract acaricide-resistant tick populations, immunological tick control is regarded among the most promising sustainable strategies. Indeed, immense efforts have been devoted toward identifying tick vaccine antigens. Until now, Bm86-based vaccines have been the most effective under field conditions, but they have shown mixed success worldwide. Currently, of the two Bm86 vaccines commercialized in the 1990s (GavacTM in Cuba and TickGARDPLUSTM in Australia), only GavacTM is available. There is thus growing consensus that combining antigens could broaden the protection range and enhance the efficacies of tick vaccines. Yet, the anticipated outcomes have not been achieved under field conditions. Therefore, this review demystifies the potential limitations and proposes ways of sustaining enhanced cocktail tick vaccine efficacy.
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Affiliation(s)
- Charles Ndawula
- Vaccinology Research program, National Livestock Resources Research Institute, P O. Box 5746, Nakyesasa 256, Uganda
| | - Ala E. Tabor
- Centre for Animal Science, Queensland Alliance for Agriculture & Food Innovation, The University of Queensland Australia, St Lucia 4072, Queensland, Australia
- School of Chemistry & Molecular Biosciences, The University of Queensland, St Lucia 4072, Queensland, Australia
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Nascimento KS, Andrade MLL, Silva IB, Domingues DL, Chicas LS, Silva MTL, Bringel PHSF, Marques GFO, Martins MGQ, Lóssio CF, Nascimento APM, Wolin IAV, Leal RB, Assreuy AMS, Cavada BS. Heterologous production of α-chain of Dioclea sclerocarpa lectin: Enhancing the biological effects of a wild-type lectin. Int J Biol Macromol 2020; 156:1-9. [PMID: 32275993 DOI: 10.1016/j.ijbiomac.2020.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 10/24/2022]
Abstract
Lectins from Diocleinae subtribe species (family Leguminosae) are of special interest since they present a wide spectrum of biological activities, despite their high structural similarity. During their synthesis in plant cells, these proteins undergo post-translational processing resulting in the formation of three chains (α, β, γ), which constitute the lectins' subunits. Furthermore, such wild-type proteins are presented as isolectins or with different combinations of these chains, which undermine their biotechnological potential. Thus, the present study aimed to produce a recombinant form of the lectin from Dioclea sclerocarpa seeds (DSL), exclusively constituted by α-chain. The recombinant DSL (rDSL) was successfully expressed in E. coli BL21 (DE3) and purified by affinity chromatography (Sephadex G-50), showing a final yield of 74 mg of protein per liter of culture medium and specificity for D-mannose, α-methyl-mannoside and melibiose, unlike the wild-type protein. rDSL presented an effective vasorelaxant effect in rat aortas up to 100% and also interacted with glioma cells C6 and U87. Our results demonstrated an efficient recombinant production of rDSL in a bacterial system that retained some biochemical properties of the wild-type protein, showing wider versatility in sugar specificities and better efficacy in its activity in the biological models evaluated in this work.
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Affiliation(s)
- Kyria S Nascimento
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil
| | - Maria L L Andrade
- Universidade Federal do Rio Grande do Norte, Escola Agrícola de Jundiaí, Distrito de Jundiaí, 59280000 Macaíba, Rio Grande do Norte, Brazil
| | - Ivanice B Silva
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil
| | - Daniel L Domingues
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil
| | - Larissa S Chicas
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil
| | - Mayara T L Silva
- Departamento de Bioquímica e Programa de Pós-graduação em Bioquímica, Universidade Federal de Santa Catarina, Campus Universitário, 88040900 Florianópolis, Santa Catarina, Brazil
| | - Pedro H S F Bringel
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Campus do Itaperi, 60714903 Fortaleza, Ceará, Brazil
| | - Gabriela F O Marques
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Campus do Itaperi, 60714903 Fortaleza, Ceará, Brazil
| | - Maria G Q Martins
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil; Centro Universitário INTA, Programa de pós-graduação em Biotecnologia, Sobral, Ceará, Brazil
| | - Claudia F Lóssio
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil
| | - Ana Paula M Nascimento
- Departamento de Bioquímica e Programa de Pós-graduação em Bioquímica, Universidade Federal de Santa Catarina, Campus Universitário, 88040900 Florianópolis, Santa Catarina, Brazil
| | - Ingrid A V Wolin
- Departamento de Bioquímica e Programa de Pós-graduação em Bioquímica, Universidade Federal de Santa Catarina, Campus Universitário, 88040900 Florianópolis, Santa Catarina, Brazil
| | - Rodrigo B Leal
- Departamento de Bioquímica e Programa de Pós-graduação em Bioquímica, Universidade Federal de Santa Catarina, Campus Universitário, 88040900 Florianópolis, Santa Catarina, Brazil
| | - Ana M S Assreuy
- Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Campus do Itaperi, 60714903 Fortaleza, Ceará, Brazil.
| | - Benildo S Cavada
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, 60440970 Fortaleza, Ceará, Brazil.
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66
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Guleria S, Joshi R, Singh D, Kumar S. Identification of host factors limiting the overexpression of recombinant Cu, Zn superoxide dismutase in Escherichia coli. Biotechnol Lett 2020; 42:2389-2401. [DOI: 10.1007/s10529-020-02962-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 07/03/2020] [Indexed: 11/24/2022]
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Shanmugaraj B, I. Bulaon CJ, Phoolcharoen W. Plant Molecular Farming: A Viable Platform for Recombinant Biopharmaceutical Production. PLANTS 2020; 9:plants9070842. [PMID: 32635427 PMCID: PMC7411908 DOI: 10.3390/plants9070842] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/20/2020] [Accepted: 06/30/2020] [Indexed: 12/20/2022]
Abstract
The demand for recombinant proteins in terms of quality, quantity, and diversity is increasing steadily, which is attracting global attention for the development of new recombinant protein production technologies and the engineering of conventional established expression systems based on bacteria or mammalian cell cultures. Since the advancements of plant genetic engineering in the 1980s, plants have been used for the production of economically valuable, biologically active non-native proteins or biopharmaceuticals, the concept termed as plant molecular farming (PMF). PMF is considered as a cost-effective technology that has grown and advanced tremendously over the past two decades. The development and improvement of the transient expression system has significantly reduced the protein production timeline and greatly improved the protein yield in plants. The major factors that drive the plant-based platform towards potential competitors for the conventional expression system are cost-effectiveness, scalability, flexibility, versatility, and robustness of the system. Many biopharmaceuticals including recombinant vaccine antigens, monoclonal antibodies, and other commercially viable proteins are produced in plants, some of which are in the pre-clinical and clinical pipeline. In this review, we consider the importance of a plant- based production system for recombinant protein production, and its potential to produce biopharmaceuticals is discussed.
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Affiliation(s)
- Balamurugan Shanmugaraj
- Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand;
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences Chulalongkorn University, Bangkok 10330, Thailand;
| | - Christine Joy I. Bulaon
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences Chulalongkorn University, Bangkok 10330, Thailand;
| | - Waranyoo Phoolcharoen
- Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Bangkok 10330, Thailand;
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences Chulalongkorn University, Bangkok 10330, Thailand;
- Correspondence: ; Tel.: +66-2-218-8359; Fax: +66-2-218-8357
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68
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Schwaighofer A, Ablasser S, Lux L, Kopp J, Herwig C, Spadiut O, Lendl B, Slouka C. Production of Active Recombinant Hyaluronidase Inclusion Bodies from Apis mellifera in E. coli Bl21(DE3) and characterization by FT-IR Spectroscopy. Int J Mol Sci 2020; 21:E3881. [PMID: 32485932 PMCID: PMC7313074 DOI: 10.3390/ijms21113881] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022] Open
Abstract
The bacterium E. coli is one of the most important hosts for recombinant protein production. The benefits are high growth rates, inexpensive media, and high protein titers. However, complex proteins with high molecular weight and many disulfide bonds are expressed as inclusion bodies (IBs). In the last decade, the overall perception of these IBs being not functional proteins changed, as enzyme activity was found within IBs. Several applications for direct use of IBs are already reported in literature. While fluorescent proteins or protein tags are used for determination of IB activity to date, direct measurements of IB protein activity are scacre. The expression of recombinant hyaluronidase from Apis mellifera in E. coli BL21(DE3) was analyzed using a face centered design of experiment approach. Hyaluronidase is a hard to express protein and imposes a high metabolic burden to the host. Conditions giving a high specific IB titer were found at 25 °C at low specific substrate uptake rates and induction times of 2 to 4 h. The protein activity of hyaluronidase IBs was verified using (Fourier transform) FT-IR spectroscopy. Degradation of the substrate hyaluronan occurred at increased rates with higher IB concentrations. Active recombinant hyaluronidase IBs can be immediately used for direct degradation of hyaluronan without further down streaming steps. FT-IR spectroscopy was introduced as a method for tracking IB activity and showed differences in degradation behavior of hyaluronan dependent on the applied active IB concentration.
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Affiliation(s)
- Andreas Schwaighofer
- FG Environmental Analytics, Process Analytics and Sensors, Institute of Chemical Technology and Analytics, Vienna University of Technology, Getreidemarkt 9/164, 1060 Wien, Austria; (A.S.); (L.L.); (B.L.)
| | - Sarah Ablasser
- FG Bioprocess Technology, ICEBE, Vienna University of Technology, Gumpendorferstrasse 1a, 1060 Vienna, Austria; (S.A.); (J.K.); (C.H.)
| | - Laurin Lux
- FG Environmental Analytics, Process Analytics and Sensors, Institute of Chemical Technology and Analytics, Vienna University of Technology, Getreidemarkt 9/164, 1060 Wien, Austria; (A.S.); (L.L.); (B.L.)
| | - Julian Kopp
- FG Bioprocess Technology, ICEBE, Vienna University of Technology, Gumpendorferstrasse 1a, 1060 Vienna, Austria; (S.A.); (J.K.); (C.H.)
| | - Christoph Herwig
- FG Bioprocess Technology, ICEBE, Vienna University of Technology, Gumpendorferstrasse 1a, 1060 Vienna, Austria; (S.A.); (J.K.); (C.H.)
| | - Oliver Spadiut
- FG Integrated Bioprocess Development, ICEBE, Vienna University of Technology, Gumpendorferstrasse 1a, 1060 Vienna, Austria;
| | - Bernhard Lendl
- FG Environmental Analytics, Process Analytics and Sensors, Institute of Chemical Technology and Analytics, Vienna University of Technology, Getreidemarkt 9/164, 1060 Wien, Austria; (A.S.); (L.L.); (B.L.)
| | - Christoph Slouka
- FG Integrated Bioprocess Development, ICEBE, Vienna University of Technology, Gumpendorferstrasse 1a, 1060 Vienna, Austria;
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69
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Yao D, Fan J, Han R, Xiao J, Li Q, Xu G, Dong J, Ni Y. Enhancing soluble expression of sucrose phosphorylase in Escherichia coli by molecular chaperones. Protein Expr Purif 2020; 169:105571. [DOI: 10.1016/j.pep.2020.105571] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/14/2020] [Accepted: 01/14/2020] [Indexed: 02/06/2023]
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70
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Souza JB, Cardoso R, Almeida-Souza HO, Carvalho CP, Correia LIV, Faria PCB, Araujo GR, Mendes MM, Rodrigues RS, Rodrigues VM, Dandekar AM, Goulart LR, Nascimento R. Generation and In-planta expression of a recombinant single chain antibody with broad neutralization activity on Bothrops pauloensis snake venom. Int J Biol Macromol 2020; 149:1241-1251. [PMID: 32035152 DOI: 10.1016/j.ijbiomac.2020.02.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 12/26/2022]
Abstract
The main systemic alterations present in bothropic envenomation are hemostasis disorders, for which the conventional treatment is based on animal-produced antiophidic sera. We have developed a neutralizing antibody against Bothrops pauloensis (B. pauloensis) venom, which is member of the genus most predominant in snakebite accidents in Brazil. Subsequently, we expressed this antibody in plants to evaluate its enzymatic and biological activities. The ability of single-chain variable fragment (scFv) molecules to inhibit fibrinogenolytic, azocaseinolytic, coagulant and hemorrhagic actions of snake venom metalloproteinases (SVMPs) contained in B. pauloensis venom was verified through proteolytic assays. The antibody neutralized the toxic effects of envenomation, particularly those related to systemic processes, by interacting with one of the predominant classes of metalloproteinases. This novel molecule is a potential tool with great antivenom potential and provides a biotechnological antidote to snake venom due to its broad neutralizing activity.
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Affiliation(s)
- Jessica B Souza
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil.
| | - Rone Cardoso
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Hebréia O Almeida-Souza
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Camila P Carvalho
- Department of Plant Pathology, University of Sao Paulo, Av. Padua Dias 11, 13418-310 Piracicaba, SP, Brazil
| | - Lucas Ian Veloso Correia
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Paula Cristina B Faria
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Galber R Araujo
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Mirian M Mendes
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Renata Santos Rodrigues
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Veridiana M Rodrigues
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
| | - Abhaya M Dandekar
- Plant Sciences Department, University of California, Davis, 1 Shields Ave, Davis, CA 95616, USA
| | - Luiz Ricardo Goulart
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil.
| | - Rafael Nascimento
- Institute of Biotechnology, Federal University of Uberlandia, Av. Amazonas, Bloco 2E, Campus Umuarama, 38400-902 Uberlandia, MG, Brazil
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71
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Nekoufar S, Fazeli A, Fazeli MR. Solubilization of Human Interferon β-1b Inclusion Body Proteins by Organic Solvents. Adv Pharm Bull 2020; 10:233-238. [PMID: 32373491 PMCID: PMC7191233 DOI: 10.34172/apb.2020.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/07/2019] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
Purposes: Solubilization of inclusion bodies expressed in E. coli is a critical step during manufacturing of recombinant proteins expressed as inclusion bodies. So far, various methods have been used for solubilization and purification of inclusion body proteins to obtain active proteins with high purity and yield. The aim of this study was to examine the benefit of organic solvents such as alcohols in solubilization of recombinant interferon β-1b inclusion bodies.
Methods: Effect of important parameters inclusion pH, concentration and type of denaturant and concentration of alcoholic solvents were optimized to formulate a suitable solubilization buffer and investigate their effect on solubilization of interferon β-1b inclusion bodies.
Results: Our findings showed the acidic pH in the range of 2-3 is more suitable than alkaline pH >12 for solubilization and achieving higher content of interferon β-1beta and pure recombinant protein. We have also demonstrated that 1% SDS acts better than 2M urea to solubilize Inclusion body proteins of interferon β-1b at pH of 2-3. The interferon concentration was 2.35 mg per 100 mg IB when we used 40% (v/v) 1-propanol and 20% (v/v) 2-butanol into the buffer solution as well.
Conclusion: The optimized method provides gentile condition for solubilization of inclusion body at high protein concentration and purity with a degree of retention of native secondary structure which makes this method valuable to be used in production and research area.
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Affiliation(s)
- Samira Nekoufar
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ahmad Fazeli
- The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mohammad Reza Fazeli
- Department of Drug & Food Control, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
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72
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Jong WSP, Ten Hagen-Jongman CM, Vikström D, Dontje W, Abdallah AM, de Gier JW, Bitter W, Luirink J. Mutagenesis-Based Characterization and Improvement of a Novel Inclusion Body Tag. Front Bioeng Biotechnol 2020; 7:442. [PMID: 31998707 PMCID: PMC6965018 DOI: 10.3389/fbioe.2019.00442] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/11/2019] [Indexed: 12/13/2022] Open
Abstract
Whereas, bacterial inclusion bodies (IBs) for long were regarded as undesirable aggregates emerging during recombinant protein production, they currently receive attention as promising nanoparticulate biomaterials with diverse applications in biotechnology and biomedicine. We previously identified ssTorA, a signal sequence that normally directs protein export via the Tat pathway in E. coli, as a tag that induces the accumulation of fused proteins into IBs under overexpression conditions. Here, we used targeted mutagenesis to identify features and motifs being either critical or dispensable for IB formation. We found that IB formation is neither related to the function of ssTorA as a Tat-signal sequence nor is it a general feature of this family of signal sequences. IB formation was inhibited by co-overexpression of ssTorA binding chaperones TorD and DnaK and by amino acid substitutions that affect the propensity of ssTorA to form an α-helix. Systematic deletion experiments identified a minimal region of ssTorA required for IB formation in the center of the signal sequence. Unbiased genetic screening of a library of randomly mutagenized ssTorA sequences for reduced aggregation properties allowed us to pinpoint residues that are critical to sustain insoluble expression. Together, the data point to possible mechanisms for the aggregation of ssTorA fusions. Additionally, they led to the design of a tag with superior IB-formation properties compared to the original ssTorA sequence.
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Affiliation(s)
- Wouter S P Jong
- Abera Bioscience AB, Solna, Sweden.,Department of Molecular Microbiology, Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit, Amsterdam, Netherlands
| | - Corinne M Ten Hagen-Jongman
- Department of Molecular Microbiology, Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit, Amsterdam, Netherlands
| | | | - Wendy Dontje
- Department of Clinical Immunology and Rheumatology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Abdallah M Abdallah
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha, Qatar.,Bioscience Core Laboratory, King Abdullah University of Science and Technology (KAUST), Jeddah, Saudi Arabia
| | - Jan-Willem de Gier
- Department of Biochemistry and Biophysics, Center for Biomembrane Research, Stockholm University, Stockholm, Sweden
| | - Wilbert Bitter
- Department of Molecular Microbiology, Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit, Amsterdam, Netherlands.,Medical Microbiology and Infection Control, Cancer Center Amsterdam, Amsterdam UMC, Vrije Universiteit, Amsterdam, Netherlands
| | - Joen Luirink
- Abera Bioscience AB, Solna, Sweden.,Department of Molecular Microbiology, Amsterdam Institute for Molecules Medicines and Systems (AIMMS), Vrije Universiteit, Amsterdam, Netherlands
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73
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Cai H, Yao H, Li T, Tang Y, Li D. High-level heterologous expression of the human transmembrane sterol Δ8,Δ7-isomerase in Pichia pastoris. Protein Expr Purif 2019; 164:105463. [DOI: 10.1016/j.pep.2019.105463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 07/30/2019] [Indexed: 01/11/2023]
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74
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de Oliveira TA, Silva WD, da Rocha Torres N, Badaró de Moraes JV, Senra RL, de Oliveira Mendes TA, Júnior AS, Bressan GC, Fietto JLR. Application of the LEXSY Leishmania tarentolae system as a recombinant protein expression platform: A review. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.08.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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75
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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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76
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Nasrin T, Patra M, Escudey M, Das TK. Biosynthesized CdS nanoparticles disturb E. coli growth through reactive oxygen production. Microb Pathog 2019; 135:103639. [DOI: 10.1016/j.micpath.2019.103639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 07/01/2019] [Accepted: 07/18/2019] [Indexed: 11/27/2022]
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77
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Swan J, Sakthivel D, Cameron TC, Faou P, Downs R, Rajapaksha H, Piedrafita D, Beddoe T. Proteomic identification of galectin-11 and -14 ligands from Fasciola hepatica. Int J Parasitol 2019; 49:921-932. [PMID: 31560927 DOI: 10.1016/j.ijpara.2019.06.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/19/2019] [Accepted: 06/24/2019] [Indexed: 12/14/2022]
Abstract
Fasciola hepatica is a globally distributed zoonotic trematode that causes fasciolosis in livestock, wildlife, ruminants and humans. Fasciolosis causes a significant economic impact on the agricultural sector and affects human health. Due to the increasing prevalence of triclabendazole resistance in F. hepatica, alternative treatment methods are required. Many protein antigens have been trialled as vaccine candidates with low success, however, the tegument of F. hepatica is highly glycosylated and the parasite-derived glycoconjugate molecules have been identified as an important mediator in host-parasite interactions and as prime targets for the host immune system. Galectin-11 (LGALS-11) and galectin-14 (LGALS-14) are two ruminant-specific glycan-binding proteins, showing upregulation in the bile duct of sheep infected with F. hepatica, which are believed to mediate host-parasite interaction and innate immunity against internal parasites. For the first known time, this study presents the ligand profile of whole worm and tegument extracts of F. hepatica that interacted with immobilised LGALS-11 and LGALS-14. LGALS-14 interacted with a total of 255 F. hepatica proteins. The protein which had the greatest interaction was identified as an uncharacterised protein which contained a C-type lectin domain. Many of the other proteins identified were previously trialled vaccine candidates including glutathione S-transferase, paramyosin, cathepsin L, cathepsin B, fatty acid binding protein and leucine aminopeptidase. In comparison to LGALS-14, LGALS-11 interacted with only 49 F. hepatica proteins and it appears to have a much smaller number of binding partners in F. hepatica. This is, to our knowledge, the first time host-specific lectins have been used for the enrichment of F. hepatica glycoproteins and this study has identified a number of glycoproteins that play critical roles in host-parasite interactions which have the potential to be novel vaccine candidates.
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Affiliation(s)
- Jaclyn Swan
- Department of Animal, Plant and Soil Science and Centre for AgriBioscience (AgriBio), La Trobe University, Victoria 3086, Australia; Centre for Livestock Interactions with Pathogens (CLiP), La Trobe University, Victoria 3086, Australia
| | - Dhanasekaran Sakthivel
- Department of Animal, Plant and Soil Science and Centre for AgriBioscience (AgriBio), La Trobe University, Victoria 3086, Australia
| | - Timothy C Cameron
- Department of Animal, Plant and Soil Science and Centre for AgriBioscience (AgriBio), La Trobe University, Victoria 3086, Australia; Centre for Livestock Interactions with Pathogens (CLiP), La Trobe University, Victoria 3086, Australia
| | - Pierre Faou
- Department of Biochemistry & Genetics, La Trobe Institute for Molecular Science, La Trobe University, Victoria 3086, Australia
| | - Rachael Downs
- Department of Biochemistry & Genetics, La Trobe Institute for Molecular Science, La Trobe University, Victoria 3086, Australia
| | - Harinda Rajapaksha
- Department of Biochemistry & Genetics, La Trobe Institute for Molecular Science, La Trobe University, Victoria 3086, Australia
| | - David Piedrafita
- School of Applied and Biomedical Sciences, Federation University, Churchill, Victoria 3842, Australia
| | - Travis Beddoe
- Department of Animal, Plant and Soil Science and Centre for AgriBioscience (AgriBio), La Trobe University, Victoria 3086, Australia; Centre for Livestock Interactions with Pathogens (CLiP), La Trobe University, Victoria 3086, Australia.
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78
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Molecular cloning, expression and characterization of secreted ferritin in the silkworm, Bombyx mori. Biometals 2019; 32:757-769. [PMID: 31363876 DOI: 10.1007/s10534-019-00208-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/29/2019] [Indexed: 11/25/2022]
Abstract
Ferritin is a ubiquitous iron storage protein which plays key role in regulating iron homeostasis and metabolism. In this paper, the ferritin heavy chain homologs (HCH) and light chain homologs (LCH) from Bombyx mori (BmFerHCH and BmFerLCH) were amplified through PCR and cloned into the expression vector pET-30a(+). The recombinant BmFerHCH and BmFerLCH expressed in Escherichia coli were in the form of insoluble inclusion bodies, indicating that the two proteins were not in their natural structural conformation. In order to obtain refolded ferritin in vitro, the inclusion bodies (BmFerHCH and/or BmFerLCH) were dissolved in denaturing buffer (100 mM Tris, 50 mM Glycine, 8 M urea, 5 mM DTT, pH 8.0) and then refolded in refolding buffer (100 mM Tris, 400 mM L-arginine, 0.2 mM PMSF, 0.5 mM DTT). The result showed that it was only when both BmFerHCH and BmFerLCH were present together in the denaturing buffer that refolding was successful and resulted in the formation of heteropolymers (H-L chain dimers) over homopolymers (H-H chain or L-L chain dimers). Moreover, the molecules (NaCl, Triton and glycerol) were found to enhance protein refolding. The optimum temperature, pH and ratios of BmFerHCH/BmFerLCH required for refolding were found to be 10 °C, pH 7, 1:1 or 1:2, respectively. Finally, the refolded ferritin had the ability to store iron, exhibited ferroxidase activity, and could withstand high temperatures and pH treatment, which is consistent with ferritin in other species.
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79
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Amann T, Schmieder V, Faustrup Kildegaard H, Borth N, Andersen MR. Genetic engineering approaches to improve posttranslational modification of biopharmaceuticals in different production platforms. Biotechnol Bioeng 2019; 116:2778-2796. [PMID: 31237682 DOI: 10.1002/bit.27101] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/27/2019] [Accepted: 06/18/2019] [Indexed: 12/18/2022]
Abstract
The number of approved biopharmaceuticals, where product quality attributes remain of major importance, is increasing steadily. Within the available variety of expression hosts, the production of biopharmaceuticals faces diverse limitations with respect to posttranslational modifications (PTM), while different biopharmaceuticals demand different forms and specifications of PTMs for proper functionality. With the growing toolbox of genetic engineering technologies, it is now possible to address general as well as host- or biopharmaceutical-specific product quality obstacles. In this review, we present diverse expression systems derived from mammalians, bacteria, yeast, plants, and insects as well as available genetic engineering tools. We focus on genes for knockout/knockdown and overexpression for meaningful approaches to improve biopharmaceutical PTMs and discuss their applicability as well as future trends in the field.
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Affiliation(s)
- Thomas Amann
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Valerie Schmieder
- acib GmbH-Austrian Centre of Industrial Biotechnology, Graz, Austria.,Department of Biotechnology, BOKU University of Natural Resources and Life Sciences, Vienna, Austria
| | - Helene Faustrup Kildegaard
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Nicole Borth
- Department of Biotechnology, BOKU University of Natural Resources and Life Sciences, Vienna, Austria
| | - Mikael Rørdam Andersen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kongens Lyngby, Denmark
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80
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Keith BA, Ching JC, Loewen ME. Von Willebrand Factor Type A domain of hCLCA1 is sufficient for U-937 macrophage activation. Biochem Biophys Rep 2019; 18:100630. [PMID: 30984882 PMCID: PMC6444176 DOI: 10.1016/j.bbrep.2019.100630] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 03/20/2019] [Accepted: 03/21/2019] [Indexed: 11/18/2022] Open
Abstract
The human hCLCA1 gene is a member of the CLCA gene family that has a well-documented role in inflammatory airway diseases. Previously, we demonstrated that secreted hCLCA1 plays a role in regulating the innate immune response by activating airway macrophages. However, the mechanism of this regulation remains unclear. In this present study, recombinant proteins containing different hCLCA1 domains are expressed to determine the specific hCLCA1 domain(s) responsible for macrophage activation. Specifically, hCLCA1 constructs containing the hydrolase domain (HYD), the von Willebrand Factor Type A (VWA) domain, and the fibronectin type III (FN3) domain were heterologously expressed and affinity purified through fast protein liquid chromatography. Circular dichroism spectroscopy revealed that the purified hCLCA1 constructs exhibited secondary structure consistent with folded proteins. The VWA domain clearly demonstrated an ability to activate macrophages, inducing an increase in both IL-1β mRNA and protein expression. This activation was associated with the activation of MAPKs and NF-κB pathways, identifying potential mechanistic pathways by which hCLCA1's VWA domain exerts its signaling effect. Altogether, this work identifies a domain with signaling function within hCLCA1, providing a specific target to one of the most highly induced gene products of airway inflammatory disease.
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Affiliation(s)
| | | | - Matthew E. Loewen
- Department of Veterinary Biomedical Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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81
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Correddu D, Montaño López JDJ, Vadakkedath PG, Lai A, Pernes JI, Watson PR, Leung IKH. An improved method for the heterologous production of soluble human ribosomal proteins in Escherichia coli. Sci Rep 2019; 9:8884. [PMID: 31222068 PMCID: PMC6586885 DOI: 10.1038/s41598-019-45323-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 05/31/2019] [Indexed: 11/11/2022] Open
Abstract
Human ribosomal proteins play important structural and functional roles in the ribosome and in protein synthesis. An efficient method to recombinantly produce and purify these proteins would enable their full characterisation. However, the production of human ribosomal proteins can be challenging. The only published method about the recombinant production of human ribosomal proteins involved the recovery of proteins from inclusion bodies, a process that is tedious and may lead to significant loss of yield. Herein, we explored the use of different Escherichia coli competent cells and fusion protein tags for the recombinant production of human ribosomal proteins. We found that, by using thioredoxin as a fusion protein, soluble ribosomal protein could be obtained directly from cell lysates, thus leading to an improved method to recombinantly produce these proteins.
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Affiliation(s)
- Danilo Correddu
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand
| | - José de Jesús Montaño López
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand.,Facultad de Ingeniería, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad Universitaria, Coyoacán, Cd. Mx., CP 04510, Mexico
| | - Praveen G Vadakkedath
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand
| | - Amy Lai
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand
| | - Jane I Pernes
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand.,School of Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, University Walk, Bristol, BS8 1TD, United Kingdom
| | - Paris R Watson
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand.,School of Biological Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6140, New Zealand
| | - Ivanhoe K H Leung
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand. .,Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland, 1142, New Zealand.
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82
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Zhang Y, Lang B, Zeng D, Li Z, Yang J, Yan R, Xu X, Lin J. Truncation of κ‑carrageenase for higher κ‑carrageenan oligosaccharides yield with improved enzymatic characteristics. Int J Biol Macromol 2019; 130:958-968. [DOI: 10.1016/j.ijbiomac.2019.02.109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
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83
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Enhancing the synthesis of latex clearing protein by different cultivation strategies. J Biotechnol 2019; 297:32-40. [DOI: 10.1016/j.jbiotec.2019.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/29/2019] [Accepted: 03/29/2019] [Indexed: 02/06/2023]
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84
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BATRA KANISHT, NANDA TRILOK. In silico characterization of interferon-stimulated gene (ISG15) as a biomarker for early pregnancy diagnosis in Bubalus bubalis. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i3.88036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Reproductive management of livestock is the foremost requirement for increasing production from any dairy animal. High reproductive efficiency can be achieved by implementation of one of the crucial management practices which involves early differentiation of pregnant and non-pregnant animals. The early and precise pregnancy diagnosis is the major problem in Bubalus bubalis (buffalo) due to absence of estrous signs instead of normal cyclicity of reproductive organs. Therefore, in the present study, one of the conceptus derived protein interferon stimulated protein (15 kDa) released during 18 to 21 days after insemination in response to implantation of embryo was in silico characterized. The protein expressed by interferon-stimulated gene-15 (ISG15) was analyzed by isolation and sequencing of coding region of mRNA. The primary and secondary structures were predicted from the protein sequence to decipher the interaction of ISG15 protein with other molecules. The functional characterization identifies various motifs present in ISG15 protein which are responsible for its interaction with other proteins. Physiochemical properties predicted the ISG15 protein nature during in vitro conditions which are required for any of the assays development. In addition, immunogenic studies revealed ISG15 protein is strongly antigenic in nature and can be used for antibody production. In conclusion, ISG15 protein expression from buffalo is a good indicator of conceptus implantation and has suitable properties for being used as target to develop early pregnancy diagnostic kits.
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85
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Expression, purification, and characterization of asparaginase II from Saccharomyces cerevisiae in Escherichia coli. Protein Expr Purif 2019; 159:21-26. [PMID: 30836141 DOI: 10.1016/j.pep.2019.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/17/2018] [Accepted: 02/19/2019] [Indexed: 11/22/2022]
Abstract
l-asparaginase catalyzes the conversion of l-asparagine to l-aspartate and ammonium. This protein is an important therapeutic enzyme used for the treatment of acute lymphoblastic leukemia. In this study, the asparaginase II-encoding gene ASP3 from Saccharomyces cerevisiae was cloned into the expression vector pET28a in-fusion with a 6x histidine tag and was expressed in Escherichia coli BL21 (DE3) cells. The protein was expressed at a high level (225.6 IU/g cells) as an intracellular and soluble molecule and was purified from the supernatant by nickel affinity chromatography. The enzyme showed very low activity against l-glutamine. The denaturing electrophoresis analysis indicated that the recombinant protein had a molecular mass of ∼38 kDa. The native enzyme was a tetramer with a molecular mass of approximately 178 kDa. The enzyme preparation showed antitumor activity against the K562 and Jurkat cell lines comparable or even superior to the E. coli commercial asparaginase.
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86
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Biosynthesis of resveratrol and piceatannol in engineered microbial strains: achievements and perspectives. Appl Microbiol Biotechnol 2019; 103:2959-2972. [DOI: 10.1007/s00253-019-09672-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 02/06/2023]
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87
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Fazaeli A, Golestani A, Lakzaei M, Rasi Varaei SS, Aminian M. Expression optimization, purification, and functional characterization of cholesterol oxidase from Chromobacterium sp. DS1. PLoS One 2019; 14:e0212217. [PMID: 30759160 PMCID: PMC6373949 DOI: 10.1371/journal.pone.0212217] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/29/2019] [Indexed: 12/17/2022] Open
Abstract
Cholesterol oxidase is a bifunctional bacterial flavoenzyme which catalyzes oxidation and isomerization of cholesterol. This valuable enzyme has attracted a great deal of attention because of its wide application in the clinical laboratory, synthesis of steroid derived drugs, food industries, and its potentially insecticidal activity. Therefore, development of an efficient protocol for overproduction of cholesterol oxidase could be valuable and beneficial in this regard. The present study examined the role of various parameters (host strain, culture media, induction time, isopropyl ß-D-1-thiogalactopyranoside concentration, as well as post-induction incubation time and temperature) on over-expression of cholesterol oxidase from Chromobacterium sp. DS1. Applying the optimized protocol, the yield of recombinant cholesterol oxidase significantly increased from 92 U/L to 2115 U/L. Under the optimized conditions, the enzyme was produced on a large-scale, and overexpressed cholesterol oxidase was purified from cell lysate by column nickel affinity chromatography. Km and Vmax values of the purified enzyme for cholesterol were estimated using Lineweaver-Burk plot. Further, the optimum pH and optimum temperature for the enzyme activity were determined. This study reports a straightforward protocol for cholesterol oxidase production which can be performed in any laboratory.
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Affiliation(s)
- Aliakbar Fazaeli
- Department of Clinical Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Abolfazl Golestani
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Ardabil, Iran
| | - Mostafa Lakzaei
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Ardabil, Iran
| | - Samaneh Sadat Rasi Varaei
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Ardabil, Iran
| | - Mahdi Aminian
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Ardabil, Iran
- Recombinant Vaccine Research Center, Tehran University of Medical Sciences, Tehran, Iran
- * E-mail:
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88
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Verma D, Antil M, Gupta V. Recombinant production of active Streptococcus pneumoniae CysE in E. coli facilitated by codon optimized BL21(DE3)-RIL and detergent. Prep Biochem Biotechnol 2019; 49:368-374. [PMID: 30734630 DOI: 10.1080/10826068.2019.1573194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The emergence of drug resistance in Streptococcus pneumoniae (Spn) is a global health threat and necessitates discovery of novel therapeutics. The serine acetyltransferase (also known as CysE) is an enzyme of cysteine biosynthesis pathway and is reported to be essential for the survival of several pathogenic bacteria. Therefore, it appears to be a very attractive target for structure-function understanding and inhibitor design. This study describes the molecular cloning of cysE from Spn in the pET21c vector and efforts carried out for expression and purification of active recombinant CysE. Significant expression of recombinant Spn cysE could be achieved in codon optimized BL21(DE3)-RIL strain as opposed to conventional BL21(DE3) strain. Analysis of codon adaptation index (CAI) with levels of eukaryotic genes and prokaryotic cysEs expressed in heterologous E. coli host suggests that codon optimized E. coli BL21(DE3)-RIL may be a better host for expressing genes with low CAI. Here, an efficient protocol has been developed for recovery of recombinant Spn CysE in soluble and biologically active form by the usage of nonionic detergent Triton X-100 at a concentration as low as 1%. Altogether, this study reports a simple strategy for producing functionally active Spn CysE in E. coli.
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Affiliation(s)
- Deepali Verma
- a Department of Biotechnology , Jaypee Institute of Information Technology , Noida , India
| | - Monika Antil
- a Department of Biotechnology , Jaypee Institute of Information Technology , Noida , India
| | - Vibha Gupta
- a Department of Biotechnology , Jaypee Institute of Information Technology , Noida , India
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89
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Azatian SB, Kaur N, Latham MP. Increasing the buffering capacity of minimal media leads to higher protein yield. JOURNAL OF BIOMOLECULAR NMR 2019; 73:11-17. [PMID: 30613903 PMCID: PMC6441617 DOI: 10.1007/s10858-018-00222-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/22/2018] [Indexed: 05/03/2023]
Abstract
We describe a general and simple modification to the standard M9 minimal medium recipe that leads to an approximate twofold increase in the yield of heterologously expressed proteins in Escherichia coli BL21(DE3) bacteria. We monitored the growth of bacteria transformed with plasmids for three different test proteins in five minimal media with different concentrations of buffering salts and/or initial media pH. After purification of the over-expressed proteins, we found a clear correlation between the protein yield and change in media pH over time, where the minimal media that were the most buffered and therefore most resistant to change in pH produced the most protein. And in all three test protein cases, the difference in yield was nearly twofold between the best and worst buffering media. Thus, we propose that increasing the buffering capacity of M9 minimal media will generally lead to a similar increase for most of the proteins currently produced by this standard protein expression protocol. Moreover, we have qualitatively found that this effect also extends to deuterated M9 minimal media growths, which could lead to significant cost savings in these preparations.
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Affiliation(s)
- Stephan B Azatian
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Ave., Lubbock, TX, 79423-1061, USA
| | - Navneet Kaur
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Ave., Lubbock, TX, 79423-1061, USA
| | - Michael P Latham
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Ave., Lubbock, TX, 79423-1061, USA.
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90
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Slouka C, Kopp J, Spadiut O, Herwig C. Perspectives of inclusion bodies for bio-based products: curse or blessing? Appl Microbiol Biotechnol 2019; 103:1143-1153. [PMID: 30569219 PMCID: PMC6394472 DOI: 10.1007/s00253-018-9569-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 12/19/2022]
Abstract
The bacterium Escherichia coli is a major host for recombinant protein production of non-glycosylated products. Depending on the expression strategy, the recombinant protein can be located intracellularly, which often leads to protein aggregates inside of the cytoplasm, forming so the called inclusion bodies (IBs). When compared to other protein expression strategies, inclusion body formation allows high product titers and also the possibility of expressing proteins being toxic for the host. In the past years, the comprehension of inclusion bodies being only inactive protein aggregates changed, and the new term of non-classical inclusion bodies emerged. These inclusion bodies are believed to contain a reasonable amount of active protein within their structure. However, subsequent downstream processing, such as homogenisation of cells, centrifugation or solubilisation of IBs, is prone to variable process performance and is often known to result in low extraction yields. It is hypothesised that variations in IB quality attributes are responsible for those effects and that such attributes can be controlled by upstream process conditions. In this review, we address the impact of process design (process parameters) in the upstream on defined inclusion body quality attributes. The following topics are therefore addressed: (i) an overview of the range of inclusion body applications (including emerging technologies); (ii) analytical methods to determine quality attributes; and (iii) screws in process engineering to achieve the desired quality attributes for different inclusion body-based applications. Process parameters in the upstream can be used to trigger different quality attributes including protein activity, but are not exploited to a satisfying content yet. Design by quality approaches in the upstream are already considered for a multitude of existing processes. Further intensifying this approach may pave the industrial application for new IB-based products and improves IB processing, as discussed within this review.
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Affiliation(s)
- Christoph Slouka
- Christian Doppler Laboratory for Mechanistic and Physiological Methods for Improved Bioprocesses, TU Wien, Gumpendorfer Straße, 1a, 1060, Vienna, Austria
| | - Julian Kopp
- Christian Doppler Laboratory for Mechanistic and Physiological Methods for Improved Bioprocesses, TU Wien, Gumpendorfer Straße, 1a, 1060, Vienna, Austria
| | - Oliver Spadiut
- Research Area Biochemical Engineering, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorfer Straße, 1a, 1060, Vienna, Austria
| | - Christoph Herwig
- Christian Doppler Laboratory for Mechanistic and Physiological Methods for Improved Bioprocesses, TU Wien, Gumpendorfer Straße, 1a, 1060, Vienna, Austria.
- Research Area Biochemical Engineering, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorfer Straße, 1a, 1060, Vienna, Austria.
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91
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Webby MN, Sullivan MP, Yegambaram KM, Radjainia M, Keown JR, Kingston RL. A method for analyzing the composition of viral nucleoprotein complexes, produced by heterologous expression in bacteria. Virology 2018; 527:159-168. [PMID: 30529564 DOI: 10.1016/j.virol.2018.11.013] [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] [Received: 08/04/2018] [Revised: 10/23/2018] [Accepted: 11/22/2018] [Indexed: 12/27/2022]
Abstract
Viral genomes are protected and organized by virally encoded packaging proteins. Heterologous production of these proteins often results in formation of particles resembling the authentic viral capsid or nucleocapsid, with cellular nucleic acids packaged in place of the viral genome. Quantifying the total protein and nucleic acid content of particle preparations is a recurrent biochemical problem. We describe a method for resolving this problem, developed when characterizing particles resembling the Menangle Virus nucleocapsid. The protein content was quantified using the biuret assay, which is largely independent of amino acid composition. Bound nucleic acids were quantified by determining the phosphorus content, using inductively coupled plasma mass spectrometry. Estimates for the amount of RNA packaged within the particles were consistent with the structurally-characterized packaging mechanism. For a bacterially-produced nucleoprotein complex, phosphorus usually provides a unique elemental marker of bound nucleic acids, hence this method of analysis should be routinely applicable.
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Affiliation(s)
- Melissa N Webby
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Matthew P Sullivan
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | | | - Mazdak Radjainia
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Jeremy R Keown
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Richard L Kingston
- School of Biological Sciences, University of Auckland, Auckland, New Zealand.
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92
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Demers JP, Fricke P, Shi C, Chevelkov V, Lange A. Structure determination of supra-molecular assemblies by solid-state NMR: Practical considerations. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2018; 109:51-78. [PMID: 30527136 DOI: 10.1016/j.pnmrs.2018.06.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 06/15/2018] [Accepted: 06/15/2018] [Indexed: 05/26/2023]
Abstract
In the cellular environment, biomolecules assemble in large complexes which can act as molecular machines. Determining the structure of intact assemblies can reveal conformations and inter-molecular interactions that are only present in the context of the full assembly. Solid-state NMR (ssNMR) spectroscopy is a technique suitable for the study of samples with high molecular weight that allows the atomic structure determination of such large protein assemblies under nearly physiological conditions. This review provides a practical guide for the first steps of studying biological supra-molecular assemblies using ssNMR. The production of isotope-labeled samples is achievable via several means, which include recombinant expression, cell-free protein synthesis, extraction of assemblies directly from cells, or even the study of assemblies in whole cells in situ. Specialized isotope labeling schemes greatly facilitate the assignment of chemical shifts and the collection of structural data. Advanced strategies such as mixed, diluted, or segmental subunit labeling offer the possibility to study inter-molecular interfaces. Detailed and practical considerations are presented with respect to first setting up magic-angle spinning (MAS) ssNMR experiments, including the selection of the ssNMR rotor, different methods to best transfer the sample and prepare the rotor, as well as common and robust procedures for the calibration of the instrument. Diagnostic spectra to evaluate the resolution and sensitivity of the sample are presented. Possible improvements that can reduce sample heterogeneity and improve the quality of ssNMR spectra are reviewed.
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Affiliation(s)
- Jean-Philippe Demers
- Department of Molecular Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany; Laboratory of Cell Biology, Center for Cancer Research (CCR), National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Pascal Fricke
- Department of Molecular Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Chaowei Shi
- Department of Molecular Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Veniamin Chevelkov
- Department of Molecular Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany
| | - Adam Lange
- Department of Molecular Biophysics, Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP), 13125 Berlin, Germany; Institut für Biologie, Humboldt-Universität zu Berlin, 10115 Berlin, Germany.
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93
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Ni W, Liu H, Wang P, Wang L, Sun X, Wang H, Zhao G, Zheng Z. Evaluation of multiple fused partners on enhancing soluble level of prenyltransferase NovQ in Escherichia coli. Bioprocess Biosyst Eng 2018; 42:465-474. [DOI: 10.1007/s00449-018-2050-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 11/23/2018] [Indexed: 01/18/2023]
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94
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Fazaeli A, Golestani A, Lakzaei M, Rasi Varaei SS, Aminian M. Expression optimization of recombinant cholesterol oxidase in Escherichia coli and its purification and characterization. AMB Express 2018; 8:183. [PMID: 30421362 PMCID: PMC6232189 DOI: 10.1186/s13568-018-0711-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/29/2018] [Indexed: 12/22/2022] Open
Abstract
Cholesterol oxidase is a bacterial flavoenzyme which catalyzes oxidation and isomerization of cholesterol. This enzyme has a great commercial value because of its wide applications in cholesterol analysis of clinical samples, synthesis of steroid-derived drugs, food industries, and potentially insecticidal activity. Accordingly, development of an efficient protocol for overexpression of cholesterol oxidase can be very valuable and beneficial. In this study, expression optimization of cholesterol oxidase from Streptomyces sp. SA-COO was investigated in Escherichia coli host strains. Various parameters that may influence the yield of a recombinant enzyme were evaluated individually. The optimal host strain, culture media, induction time, Isopropyl ß-d-1-thiogalactopyranoside concentration, as well as post-induction incubation time and temperature were determined in a shaking flask mode. Applying the optimized protocol, the production of recombinant cholesterol oxidase was significantly enhanced from 3.2 to 158 U/L. Under the optimized condition, the enzyme was produced on a large-scale, and highly expressed cholesterol oxidase was purified from cell lysate by column nickel affinity chromatography. Km and Vmax values of the purified enzyme for cholesterol were estimated using Lineweaver–Burk plot. Further, the optimum pH and optimum temperature for the enzyme activity were also determined. We report a straightforward and easy protocol for cholesterol oxidase production which can be performed in any laboratory.
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95
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Mirzadeh A, Yoosefy A, Kazemirad E, Barati Z, Golkar M, Babaie J, Jafarihaghighi F, Valadkhani Z. Evaluation of a set of refolded recombinant antigens for serodiagnosis of human fascioliasis. PLoS One 2018; 13:e0203490. [PMID: 30281608 PMCID: PMC6169862 DOI: 10.1371/journal.pone.0203490] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 08/21/2018] [Indexed: 11/30/2022] Open
Abstract
Diagnosis of fascioliasis with high sensitivity and specificity antigens play a vital role in the management of the disease. Majority of commercial serological tests use F. hepatica native antigens and indicate wide diversities in test accuracy. Nowadays, recombinant antigens have been introduced as diagnostic reagents offer better test standardization. A combination of highly pure recombinant antigens associated with correct folding will leads to improve specificity and sensitivity of ELISA for diagnosis of Fascioliasis. In this article, Fasciola hepatica saposin-like protein 2 (SAP-2), ferritin protein (Ftn-1) and leucine aminopeptidase (LAP) recombinant antigens were considered as tools for the detection of F. hepatica immunoglobulin G antibodies in persons with chronic human fasciolasis. The recombinant antigens were obtained as fusion proteins, expressed in Escherichia coli and purified by immobilized metal affinity chromatography (IMAC). The refolding processes of denatured recombinant proteins were performed using dialysis method in the presence of chemical additives, and reduced/oxidized glutathione (in vitro). The immunoreactivity of the recombinant antigens was assessed individually and in a combination compared with excretory/secretory antigen (E/S) in an enzyme-linked immunosorbent assay (ELISA) test. The experiments were optimized using 213 serum samples from humans, including patients with chronic fascioliasis, patients with other parasitic diseases, and healthy subjects. The results indicated 95% sensitivity and 98% specificity for rtFhSAP-2, 96% sensitivity and 91% specificity for E/S, 80% and 83.3% for rtFhFtn-1, 84% and 88% for FhLAP, and also, 96% and 95% for combination of recombinant antigens, respectively. In conclusion, the results of this investigation showed that rtFhSAP-2 with the highest specificity and acceptable sensitivity has a considerable superiority compared to mentioned antigens and even in combination with these antigens in serodiagnosis of human fascioliasis.
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Affiliation(s)
- Abolfazl Mirzadeh
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Asiyeh Yoosefy
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Elham Kazemirad
- Department of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Barati
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Majid Golkar
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Jalal Babaie
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | | | - Zarrintaj Valadkhani
- Department of Medical Parasitology, Pasteur Institute of Iran, Tehran, Iran
- * E-mail:
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96
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Effect of rare codons in C-terminal of green fluorescent protein on protein production in Escherichia coli. Protein Expr Purif 2018; 149:23-30. [DOI: 10.1016/j.pep.2018.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/02/2018] [Accepted: 04/16/2018] [Indexed: 11/23/2022]
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97
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Selas Castiñeiras T, Williams SG, Hitchcock AG, Smith DC. E. coli strain engineering for the production of advanced biopharmaceutical products. FEMS Microbiol Lett 2018; 365:5049002. [DOI: 10.1093/femsle/fny162] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 07/02/2018] [Indexed: 02/06/2023] Open
Affiliation(s)
| | - Steven G Williams
- Cobra Biologics, Stephenson Building, The Science Park, Keele ST5 5SP, UK
| | - Antony G Hitchcock
- Cobra Biologics, Stephenson Building, The Science Park, Keele ST5 5SP, UK
| | - Daniel C Smith
- Cobra Biologics, Stephenson Building, The Science Park, Keele ST5 5SP, UK
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98
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Xu Y, Wang B, Liu X, Shi B, Li B. Recombinant expression and comparative bioactivity of tongue sole insulin-like growth factor (IGF)-1 and IGF-2 in Pichia pastoris. AQUACULTURE RESEARCH 2018; 49:2193-2200. [DOI: 10.1111/are.13675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- Yongjiang Xu
- Key Laboratory of Sustainable Development of Marine Fisheries; Ministry of Agriculture; Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
- Laboratory for Marine Fisheries and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
| | - Bin Wang
- Key Laboratory of Sustainable Development of Marine Fisheries; Ministry of Agriculture; Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
- Laboratory for Marine Fisheries and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
| | - Xuezhou Liu
- Key Laboratory of Sustainable Development of Marine Fisheries; Ministry of Agriculture; Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
- Laboratory for Marine Fisheries and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
| | - Bao Shi
- Key Laboratory of Sustainable Development of Marine Fisheries; Ministry of Agriculture; Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
- Laboratory for Marine Fisheries and Food Production Processes; Qingdao National Laboratory for Marine Science and Technology; Qingdao China
| | - Bin Li
- Key Laboratory of Sustainable Development of Marine Fisheries; Ministry of Agriculture; Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
- Kang Li Tai Pharmaceutical Co., Ltd; Qingdao China
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99
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Aarthy M, Puhazhselvan P, Aparna R, George AS, Gowthaman MK, Ayyadurai N, Masaki K, Nakajima-Kambe T, Kamini NR. Growth associated degradation of aliphatic-aromatic copolyesters by Cryptococcus sp. MTCC 5455. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.03.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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100
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Bacete L, Mélida H, Miedes E, Molina A. Plant cell wall-mediated immunity: cell wall changes trigger disease resistance responses. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:614-636. [PMID: 29266460 DOI: 10.1111/tpj.13807] [Citation(s) in RCA: 274] [Impact Index Per Article: 45.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 12/07/2017] [Accepted: 12/14/2017] [Indexed: 05/18/2023]
Abstract
Plants have evolved a repertoire of monitoring systems to sense plant morphogenesis and to face environmental changes and threats caused by different attackers. These systems integrate different signals into overreaching triggering pathways which coordinate developmental and defence-associated responses. The plant cell wall, a dynamic and complex structure surrounding every plant cell, has emerged recently as an essential component of plant monitoring systems, thus expanding its function as a passive defensive barrier. Plants have a dedicated mechanism for maintaining cell wall integrity (CWI) which comprises a diverse set of plasma membrane-resident sensors and pattern recognition receptors (PRRs). The PRRs perceive plant-derived ligands, such as peptides or wall glycans, known as damage-associated molecular patterns (DAMPs). These DAMPs function as 'danger' alert signals activating DAMP-triggered immunity (DTI), which shares signalling components and responses with the immune pathways triggered by non-self microbe-associated molecular patterns that mediate disease resistance. Alteration of CWI by impairment of the expression or activity of proteins involved in cell wall biosynthesis and/or remodelling, as occurs in some plant cell wall mutants, or by wall damage due to colonization by pathogens/pests, activates specific defensive and growth responses. Our current understanding of how these alterations of CWI are perceived by the wall monitoring systems is scarce and few plant sensors/PRRs and DAMPs have been characterized. The identification of these CWI sensors and PRR-DAMP pairs will help us to understand the immune functions of the wall monitoring system, and might allow the breeding of crop varieties and the design of agricultural strategies that would enhance crop disease resistance.
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Affiliation(s)
- Laura Bacete
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, UPM, 28040, Madrid, Spain
| | - Hugo Mélida
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
| | - Eva Miedes
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, UPM, 28040, Madrid, Spain
| | - Antonio Molina
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Campus de Montegancedo UPM, 28223, Pozuelo de Alarcón, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaría y de Biosistemas, UPM, 28040, Madrid, Spain
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