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Gallus S, Mittmann E, Rabe KS. A Modular System for the Rapid Comparison of Different Membrane Anchors for Surface Display on Escherichia coli. Chembiochem 2021; 23:e202100472. [PMID: 34767678 PMCID: PMC9298812 DOI: 10.1002/cbic.202100472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/04/2021] [Indexed: 12/13/2022]
Abstract
Comparison of different membrane anchor motifs for the surface display of a protein of interest (passenger) is crucial for achieving the best possible performance. However, generating genetic fusions of the passenger to various membrane anchors is time-consuming. We herein employ a recently developed modular display system, in which the membrane anchor and the passenger are expressed separately and assembled in situ via SpyCatcher and SpyTag interaction, to readily combine a model passenger cytochrome P450 BM3 (BM3) with four different membrane anchors (Lpp-OmpA, PgsA, INP and AIDA-I). This approach has the significant advantage that passengers and membrane anchors can be freely combined in a modular fashion without the need to generate direct genetic fusion constructs in each case. We demonstrate that the membrane anchors impact not only cell growth and membrane integrity, but also the BM3 surface display capacity and whole-cell biocatalytic activity. The previously used Lpp-OmpA as well as PgsA were found to be efficient for the display of BM3 via SpyCatcher/SpyTag interaction. Our strategy can be transferred to other user-defined anchor and passenger combinations and could thus be used for acceleration and improvement of various applications involving cell surface display.
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Affiliation(s)
- Sabrina Gallus
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces 1 (IBG 1), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Esther Mittmann
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces 1 (IBG 1), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Kersten S Rabe
- Karlsruhe Institute of Technology (KIT), Institute for Biological Interfaces 1 (IBG 1), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
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2
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Somasundaram S, Jeong J, Kumaravel A, Hong SH. Whole-Cell display of Pyrococcus horikoshii glutamate decarboxylase in Escherichia coli for high-titer extracellular gamma-aminobutyric acid production. J Ind Microbiol Biotechnol 2021; 48:6310578. [PMID: 34180519 PMCID: PMC8788790 DOI: 10.1093/jimb/kuab039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 06/25/2021] [Indexed: 11/12/2022]
Abstract
We investigated the effect of cell-surface display of glutamate decarboxylase (GadB) on gamma-aminobutyric acid (GABA) production in recombinant Escherichia coli. We integrated GadB from the hyperthermophilic, anaerobic archaeon Pyrococcus horikoshii to the C-terminus of the E. coli outer membrane protein C (OmpC). After 12 hr of culturing GadB-displaying cells, the GABA concentration in the extracellular medium increased to 3.2 g/l, which is eight times that obtained with cells expressing GadB in the cytosol. To further enhance GABA production, we increased the temperatures of the culture. At 60°C, the obtained GABA concentration was 4.62 g/l after 12 hr of culture, and 5.35 g/l after 24 hr, which corresponds to a yield of 87.7%.
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Affiliation(s)
- Sivachandiran Somasundaram
- Department of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea
| | - Jaehoon Jeong
- Department of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea
| | - Ashokkumar Kumaravel
- Department of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea
| | - Soon Ho Hong
- Department of Chemical Engineering, University of Ulsan, 93 Daehak-ro, Nam-gu, Ulsan 44610, Republic of Korea
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3
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Fabrication of silica on chitin in ambient conditions using silicatein fused with a chitin-binding domain. Bioprocess Biosyst Eng 2021; 44:1883-1890. [PMID: 33974134 DOI: 10.1007/s00449-021-02568-w] [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: 01/26/2021] [Accepted: 04/02/2021] [Indexed: 10/21/2022]
Abstract
High temperatures, harsh pH conditions, and toxic chemicals involved in the conventional synthesis and coating of silica limit the fabrication of new-generation hybrid materials immobilizing live cells and biomolecules such as enzymes and drugs. This hinders the application of inorganic-organic biohybrid materials in various fields, including bioelectronics, energy generation, and biomedicine. Silicatein, an enzyme found in siliceous sponges, catalyzes the polymerization of silica under mild conditions, that is, at room temperature and neutral pH. Silicatein was fused with a chitin-binding domain (ChBD) to selectively bind the fusion silicatein on the chitin material and with a small soluble tag called InakC, a hydrophilic protein from Pseudomonas syringae, to control the unfavorable aggregation of silicatein. The fusion silicatein was soluble in aqueous media and was successfully found to be adsorbed on the chitin material. The immobilized fusion silicatein acted as an interfacial catalyst to fabricate silica on chitin under ambient conditions. This technique can be used to fabricate inorganic-organic hybrid materials to immobilize biomolecules and can be applied to develop novel biocatalytic systems, biosensors, and tissue culture scaffolds.
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4
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Jia X, Li Y, Xu T, Wu K. Display of lead-binding proteins on Escherichia coli surface for lead bioremediation. Biotechnol Bioeng 2020; 117:3820-3834. [PMID: 32740905 DOI: 10.1002/bit.27525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 12/21/2022]
Abstract
Cell surface display of heavy metal-binding proteins has been used to enhance the adsorption capacity of heavy metals and the engineered microbial cells can be potentially used for the bioremediation of heavy metals. In this study, the proteins PbrR, PbrR691, and PbrD from the Cupriavidus metallidurans strain CH34 were displayed on the extracellular membrane of Escherichia coli BL21 cells, with the N-domain of ice-nucleation protein as the anchor protein to achieve specific adsorption of lead ions (Pb2+ ) and bioremediation of lead in the soil. The localization of fusion proteins was confirmed by western blot analysis. We investigated the effects of fusion pattern, expression level, heavy metal concentration, and the presence of other heavy metal ions on the adsorption of Pb2+ by these engineered bacteria, and the optimal linker peptide (flexible linker) and inducer concentration (0.5 mM) were obtained. The engineered bacteria showed specific selectivity and strong adsorption capacity for Pb2+ . The maximum Pb2+ adsorption capacity of strains displaying the three proteins (PbrR, PbrR691, and PbrD) were 942.1-, 754.3-, and 864.8-μmol/g cell dry weight, respectively, which was the highest reported to date. The engineered E. coli bacteria were also applied to Pb2+ -contaminated soil and the detoxification effects were observed via the seed germination test and the growth of Nicotiana benthamiana in comparison with the control BL21, which provides the proof-of-concept for in situ remediations of Pb2+ -contaminated water or soil.
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Affiliation(s)
- Xiaoqiang Jia
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Frontier Science Center for Synthetic Biology, Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, China
| | - Ying Li
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Tao Xu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Kang Wu
- Department of Chemical Engineering, University of New Hampshire, Durham, New Hampshire
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5
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Hussein FB, Venkiteshwaran K, Mayer BK. Cell surface-expression of the phosphate-binding protein PstS: System development, characterization, and evaluation for phosphorus removal and recovery. J Environ Sci (China) 2020; 92:129-140. [PMID: 32430116 DOI: 10.1016/j.jes.2020.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/29/2020] [Accepted: 02/12/2020] [Indexed: 06/11/2023]
Abstract
Simultaneous overabundance and scarcity of inorganic phosphate (Pi) is a critical issue driving the development of innovative water/wastewater treatment technologies that not only facilitate Pi removal to prevent eutrophication, but also recover Pi for agricultural reuse. Here, a cell-surface expressed high-affinity phosphate binding protein (PstS) system was developed, and its Pi capture and release potential was evaluated. E. coli was genetically modified to express PstS on its outer membrane using the ice nucleation protein (INP) as an anchoring motif. Verification of protein expression and localization were performed utilizing SDS-polyacrylamide gel electrophoresis (SDS-PAGE), western blot, and outer membrane separation analyses. Cell surface characterization was investigated through acid-base titration, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectroscopy (FTIR). These tests provided information on the macromolecular structure and composition of the bacteria surface as well as the proton-exchange properties of the surface functional groups (i.e., pKa values). Phosphate desorption and adsorption batch experiments were conducted to evaluate the effects of temperature, pH, and ionic strength on phosphate capture and release. The PstS surface-displayed cells demonstrated greater potential to release and capture phosphate compared to non-modified cells. Higher temperatures up to 40°C, basic pH conditions (pH = 10.5), and higher ionic strength up to 1.0 mol/L KCl promoted 20%-50% higher phosphate release.
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Affiliation(s)
- Faten B Hussein
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, 53233, USA
| | - Kaushik Venkiteshwaran
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, 53233, USA
| | - Brooke K Mayer
- Department of Civil, Construction and Environmental Engineering, Marquette University, Milwaukee, WI, 53233, USA.
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6
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Bian L, Zhang Z, Tang RX, Shen W, Ma LX. Flavin-Based Fluorescent Protein EcFbFP Auto-Guided Surface Display of Methyl Parathion Hydrolase in Escherichia coli. Mol Biotechnol 2020; 61:816-825. [PMID: 31486973 DOI: 10.1007/s12033-019-00204-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Methyl parathion hydrolase (MPH) plays an important role in degrading a range of organophosphorus compounds. In order to display MPH on the cell surface of Escherichia coli strain RosettaBlue™, the Flavin-based fluorescent protein EcFbFP was severed as an auto-anchoring matrix. With net negative charges of EcFbFP supplying the driving forces, fusion protein MPH-EcFbFP through a two-step auto-surface display process was finally verified by (a) inner membrane translocation and (b) anchoring at outer membrane. Cells with surface-displayed MPH obtained activity of 0.12 U/OD600 against substrate methyl parathion. MPH when fused with engineered EcFbFP containing 20 net negative charges exhibited fivefold higher anchoring efficiency and tenfold higher enzymatic catalytic activity of 1.10 U/OD600. The above result showed that MPH was successfully displayed on cell surface and can be used for biodegradation of methyl parathion.
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Affiliation(s)
- Lu Bian
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan, China
| | - Zhen Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan, China
| | - Rong-Xing Tang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan, China
| | - Wei Shen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan, China
| | - Li-Xin Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, Wuhan, China.
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Wang JM, Wang CM, Men X, Yue TQ, Madzak C, Xiang XH, Xiang HY, Zhang HB. Construction of arming Yarrowia lipolytica surface-displaying soybean seed coat peroxidase for use as whole-cell biocatalyst. Enzyme Microb Technol 2019; 135:109498. [PMID: 32146931 DOI: 10.1016/j.enzmictec.2019.109498] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/06/2019] [Accepted: 12/20/2019] [Indexed: 02/07/2023]
Abstract
Whole-cell biocatalysts could be used in wide-ranging applications. In this study, a new kind of whole-cell biocatalyst was successfully constructed by genetically immobilizing soybean seed coat peroxidase (SBP) on the cell surface of Yarrowia lipolytica Po1h, using a new integrative surface display expression vector (pMIZY05). The coding sequence of SBP was optimized and chemically synthesized, then inserted into pMIZY05 to generate expression plasmid pMIZY05-oEp. A DNA fragment corresponding to SBP and selection marker expression cassettes, without bacterial sequences, was released from pMIZY05-oEp by enzyme digestion and used to transform host yeast cells. A transformant (CM11) with a high recombinant SBP activity of 1571.9 U/mL was obtained, and recombinant SBP was proved to be successfully anchored on cell surface by testing the activities of different cellular fractions. After optimization of culture conditions, the recombinant SBP activity of CM11 was increased to 4187.8 U/mL. Afterwards, biochemical properties of the recombinant SBP were determined: optimum catalytic conditions were 37.5℃ at pH 3.5, and recombinant SBP exhibited high stability during thermal or acidic treatment. Recombinant activity of cell-displayed SBP was re-examined at optimum temperature and pH, which promoted an increase up to 4432.5 U/mL. To our knowledge, this represents the highest activity ever reported for heterologous expression of SBP. This study also provides a useful strategy for heterologous expression of proteins which could be toxic to intracellular content of host cells.
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Affiliation(s)
- Ji-Ming Wang
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 26601, China
| | - Chao-Ming Wang
- CAS Key Laboratory of Animal Models and Human Disease Mechanisms / Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Kunming College of Life Science, University of Chinese Academy of Sciences, Kunming 650204, China
| | - Xiao Men
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 26601, China
| | - Tong-Qin Yue
- College of Life Science, Qingdao University, Qingdao 266071, China
| | - Catherine Madzak
- UMR782 GMPA, INRA/AgroParisTech/Université Paris-Saclay, 78850 Thiverval-Grignon, France
| | - Xiao-Hua Xiang
- Hainan Cigar Research Institute, Hainan Provincial Branch of China National Tobacco Corporation, Haikou 571100, China
| | - Hai-Ying Xiang
- Yunnan Academy of Tobacco Science, Kunming 650106, China.
| | - Hai-Bo Zhang
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 26601, China.
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8
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Expression of xylanase on Escherichia coli using a truncated ice nucleation protein of Erwinia ananas (InaA). Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Merlo R, Del Prete S, Valenti A, Mattossovich R, Carginale V, Supuran CT, Capasso C, Perugino G. An AGT-based protein-tag system for the labelling and surface immobilization of enzymes on E. coli outer membrane. J Enzyme Inhib Med Chem 2019; 34:490-499. [PMID: 30724623 PMCID: PMC6366409 DOI: 10.1080/14756366.2018.1559161] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The use of natural systems, such as outer membrane protein A (OmpA), phosphoporin E (PhoE), ice nucleation protein (INP), etc., has been proved very useful for the surface exposure of proteins on the outer membrane of Gram-negative bacteria. These strategies have the clear advantage of unifying in a one-step the production, the purification and the in vivo immobilisation of proteins/biocatalysts onto a specific biological support. Here, we introduce the novel Anchoring-and-Self-Labelling-protein-tag (ASLtag), which allows the in vivo immobilisation of enzymes on E. coli surface and the labelling of the neosynthesised proteins with the engineered alkylguanine-DNA-alkyl-transferase (H5) from Sulfolobus solfataricus. Our results demonstrated that this tag enhanced the overexpression of thermostable enzymes, such as the carbonic anhydrase (SspCA) from Sulfurihydrogenibium yellowstonense and the β-glycoside hydrolase (SsβGly) from S. solfataricus, without affecting their folding and catalytic activity, proposing a new tool for the improvement in the utilisation of biocatalysts of biotechnological interest.
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Affiliation(s)
- Rosa Merlo
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Sonia Del Prete
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Anna Valenti
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Rosanna Mattossovich
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Vincenzo Carginale
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Claudiu T Supuran
- b Neurofarba Department , University of Florence, Polo Scientifico , Sesto Fiorentino Firenze , Italy
| | - Clemente Capasso
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
| | - Giuseppe Perugino
- a Department of Biology Agriculture and Food Sciences , Institute of Bioscience and BioResources - National Research Council of Italy , Naples , Italy
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Nakatani H, Kanie J, Hori K. On‐fiber display of a functional peptide at sites distant from the cell surface using a long bacterionanofiber of a trimeric autotransporter adhesin. Biotechnol Bioeng 2018; 116:239-249. [DOI: 10.1002/bit.26857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 10/20/2018] [Accepted: 10/30/2018] [Indexed: 01/08/2023]
Affiliation(s)
- Hajime Nakatani
- Department of Biomolecular EngineeringGraduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐kuNagoya Japan
| | - Junichi Kanie
- Department of Biomolecular EngineeringGraduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐kuNagoya Japan
| | - Katsutoshi Hori
- Department of Biomolecular EngineeringGraduate School of Engineering, Nagoya University, Furo‐cho, Chikusa‐kuNagoya Japan
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11
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Zhang Z, Liu J, Fan J, Wang Z, Li L. Detection of catechol using an electrochemical biosensor based on engineered Escherichia coli cells that surface-display laccase. Anal Chim Acta 2018; 1009:65-72. [PMID: 29422133 DOI: 10.1016/j.aca.2018.01.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 12/01/2017] [Accepted: 01/04/2018] [Indexed: 02/08/2023]
Abstract
In this study, we report an electrochemical microbial biosensor that was made by immobilizing a bacterial laccase on the surface of Escherichia coli cells followed by adsorption of modified live cells onto a glassy-carbon electrode. Expression and surface localization of laccase on target cells were confirmed by Western blotting, flow cytometry assays and immunofluorescence microscopy observation. Increased tandem-aligned anchors with three repeats of the N-terminal domain of an ice nucleation protein were used to construct a highly active E. coli whole cell laccase-based catalytic system. When the proposed biosensor was used to detect catechol, the electrochemical response under optimized pH conditions was linear within a concentration range of 0.5 μM-300.0 μM catechol. Metal ions (Mn2+, Fe3+, Cu2+, Mg2+, Al3+ and Zn2+) at concentrations from 1 to 10 mg L-1, bovine serum albumin and glucose at concentrations from 0.1 to 10 g L-1, and ascorbic acid at concentrations from 0.01 to 0.1 g L-1 did not cause a noticeable interference effect. The detection limit of 0.1 μM catechol was comparable to those of other biosensors based on purified chemically modified laccases. When used to detect catechol in real red wine and tea samples, the biosensor offered a considerable level of accuracy comparable to the HPLC method as well as high recovery rates (98.2%-103.8%) towards all of the tested samples. Moreover, the developed system also exhibited high stability and reproducibility.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; College of Biology Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China
| | - Jin Liu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jin Fan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Zhiyong Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China.
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12
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Kim D, Ku S. Bacillus Cellulase Molecular Cloning, Expression, and Surface Display on the Outer Membrane of Escherichia coli. Molecules 2018; 23:E503. [PMID: 29495265 PMCID: PMC6017809 DOI: 10.3390/molecules23020503] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 02/21/2018] [Accepted: 02/23/2018] [Indexed: 12/18/2022] Open
Abstract
One of the main challenges of using recombinant enzymes is that they are derived from genetically-modified microorganisms commonly located in the intracellular region. The use of these recombinant enzymes for commercial purposes requires the additional processes of cell disruption and purification, which may result in enzyme loss, denaturation, and increased total production cost. In this study, the cellulase gene of Bacillus licheniformis ATCC 14580 was cloned, over-expressed, and surface displayed in recombinant Escherichia coli using an ice-nucleation protein (INP). INP, an outer membrane-bound protein from Pseudomonas syringae, was utilized as an anchor linker, which was cloned with a foreign cellulase gene into the pET21a vector to develop a surface display system on the outer membrane of E. coli. The resulting strain successfully revealed cellulase on the host cell surface. The over-expressed INP-cellulase fusion protein was confirmed via staining assay for determining the extracellular cellulase and Western blotting method for the molecular weight (MW) of cellulase, which was estimated to be around 61.7 kDa. Cell fractionation and localization tests demonstrated that the INP-cellulase fusion protein was mostly present in the supernatant (47.5%) and outer membrane (19.4%), while the wild-type strain intracellularly retained enzymes within cytosol (>61%), indicating that the INP gene directed the cellulase expression on the bacteria cell surface. Further studies of the optimal enzyme activity were observed at 60 °C and pH 7.0, and at least 75% of maximal enzyme activity was preserved at 70 °C.
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Affiliation(s)
- Daehwan Kim
- Laboratory of Renewable Resources Engineering, Purdue University, West Lafayette, IN 47907, USA.
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA.
| | - Seockmo Ku
- Fermentation Science Program, School of Agribusiness and Agriscience, College of Basic and Applied Sciences, Middle Tennessee State University, Murfreesboro, TN 37132, USA.
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Hao K, Chen XH, Qi XZ, Zhu B, Wang GX, Ling F. Display of GCRV vp7 protein on the surface of Escherichia coli and its immunoprotective effects in grass carp (Ctenopharyngodon idella). FISH & SHELLFISH IMMUNOLOGY 2018; 72:199-209. [PMID: 29102630 DOI: 10.1016/j.fsi.2017.10.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 10/18/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
Infection with Grass carp reovirus (GCRV) is becoming unprecedentedly widespread in grass carp (Ctenopharyngodon idella) aquaculture industry, yet the management of GCRV infection still remains a challenge. Therefore, it is of importance to develop effective means against GCRV. As a delivery system of viral antigens, surface displaying of heterologous proteins on bacteria using anchoring motifs has successfully been implemented in human and veterinary vaccines research. In this study, a novel vaccine (BL21/InpN/vp7) was developed based on surface displaying a major capsid protein (vp7) of GCRV using the anchoring motif of N-terminal unique domain of ice-nucleation protein (InpN) on Escherichia coli BL21 (DE3) vaccine. Then the grass carp were immunized by surface displaying BL21/InpN/vp7 vaccine against GCRV using both intraperitoneal injection and bath immunization and their immune responses were tested. The results revealed that some non-specific immune parameters (acid phosphatase (ACP), alkaline phosphatase (AKP) and total antioxidant capacity (T-AOC)) were strongly increased in grass carp post injection inoculation (vp7 dose ranged from 10 to 20 μg). The specific antibody levels against GCRV and the transcriptional of immune-related genes (TNF-α, IL-1β, MHCI and IgM) were also significantly enhanced in grass carp by injection inoculation (vp7 dose ranged from 5 to 20 μg). On the other hand, only the highest dose of bath vaccination significantly induced the production of specific antibody and up-regulated transcriptions of several immune-related genes (IgM and MHCI) in grass carp. The lower cumulative mortality of grass carp in vaccinated groups after GCRV challenge clearly demonstrated that surface displayed vp7 vaccine could protect fish against GCRV infection. The relative percentage survival (RPS) value in injection vaccinated group (88.89%) was much higher compared to bath group (18.89%), which was in consistent with the production of specific serum antibodies, non-specific immune response and immune related genes expression. To sum up, our results indicated the surface display of heterologous antigenic proteins on E. coli BL21 (DE3) using the anchoring motif of ice-nucleation protein may provide a promising approach to the vaccine development of aquatic animals and suggested its potential to be used as vaccine to fight against GCRV infection.
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Affiliation(s)
- Kai Hao
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China
| | - Xiao-Hui Chen
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China
| | - Xiao-Zhou Qi
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China
| | - Bin Zhu
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China
| | - Gao-Xue Wang
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China.
| | - Fei Ling
- College of Animal Science and Technology, Northwest A&F University, Xinong Road 22nd, Yangling, Shaanxi 712100, China.
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Del Prete S, Perfetto R, Rossi M, Alasmary FAS, Osman SM, AlOthman Z, Supuran CT, Capasso C. A one-step procedure for immobilising the thermostable carbonic anhydrase (SspCA) on the surface membrane of Escherichia coli. J Enzyme Inhib Med Chem 2017; 32:1120-1128. [PMID: 28791907 PMCID: PMC6010132 DOI: 10.1080/14756366.2017.1355794] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The carbonic anhydrase superfamily (CA, EC 4.2.1.1) of metalloenzymes is present in all three domains of life (Eubacteria, Archaea, and Eukarya), being an interesting example of convergent/divergent evolution, with its seven families (α-, β-, γ-, δ-, ζ-, η-, and θ-CAs) described so far. CAs catalyse the simple, but physiologically crucial reaction of carbon dioxide hydration to bicarbonate and protons. Recently, our groups characterised the α-CA from the thermophilic bacterium, Sulfurihydrogenibium yellowstonense finding a very high catalytic activity for the CO2 hydration reaction (kcat = 9.35 × 105 s-1 and kcat/Km = 1.1 × 108 M-1 s-1) which was maintained after heating the enzyme at 80 °C for 3 h. This highly thermostable SspCA was covalently immobilised within polyurethane foam and onto the surface of magnetic Fe3O4 nanoparticles. Here, we describe a one-step procedure for immobilising the thermostable SspCA directly on the surface membrane of Escherichia coli, using the INPN domain of Pseudomonas syringae. This strategy has clear advantages with respect to other methods, which require as the first step the production and the purification of the biocatalyst, and as the second step the immobilisation of the enzyme onto a specific support. Our results demonstrate that thermostable SspCA fused to the INPN domain of P. syringae ice nucleation protein (INP) was correctly expressed on the outer membrane of engineered E. coli cells, affording for an easy approach to design biotechnological applications for this highly effective thermostable catalyst.
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Affiliation(s)
- Sonia Del Prete
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy.,b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
| | - Rosa Perfetto
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Mosè Rossi
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
| | - Fatmah A S Alasmary
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Sameh M Osman
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Zeid AlOthman
- c Department of Chemistry, College of Science , King Saud University , Riyadh , Saudi Arabia
| | - Claudiu T Supuran
- b Dipartimento Neurofarba, Sezione di Scienze Farmaceutiche, and Laboratorio di Chimica Bioinorganica, Polo Scientifico , Università degli Studi di Firenze , Florence , Italy
| | - Clemente Capasso
- a Dipartimento di Scienze Bio-Agroalimentari, CNR-Istituto di Bioscienze e Biorisorse , CNR , Napoli , Italy
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Jin J, Yurkow EJ, Adler D, Lee TC. A Novel Approach To Improve the Efficiency of Block Freeze Concentration Using Ice Nucleation Proteins with Altered Ice Morphology. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:2373-2382. [PMID: 28241114 DOI: 10.1021/acs.jafc.6b03710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Freeze concentration is a separation process with high success in product quality. The remaining challenge is to achieve high efficiency with low cost. This study aims to evaluate the potential of using ice nucleation proteins (INPs) as an effective method to improve the efficiency of block freeze concentration while also exploring the related mechanism of ice morphology. Our results show that INPs are able to significantly improve the efficiency of block freeze concentration in a desalination model. Using this experimental system, we estimate that approximately 50% of the energy cost can be saved by the inclusion of INPs in desalination cycles while still meeting the EPA standard of drinking water (<500 ppm). Our investigative tools for ice morphology include optical microscopy and X-ray computed tomography imaging analysis. Their use indicates that INPs promote the development of a lamellar structured ice matrix with larger hydraulic diameters, which facilitates brine drainage and contains less brine entrapment as compared to control samples. These results suggest great potential for applying INPs to develop an energy-saving freeze concentration method via the alteration of ice morphology.
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Affiliation(s)
- Jue Jin
- Department of Food Science, Rutgers, the State University of New Jersey , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
| | - Edward J Yurkow
- Molecular Imaging Center, Rutgers Translational Sciences, Rutgers, the State University of New Jersey , 41 Gordon Road, Suite D, Piscataway, New Jersey 08854, United States
| | - Derek Adler
- Molecular Imaging Center, Rutgers Translational Sciences, Rutgers, the State University of New Jersey , 41 Gordon Road, Suite D, Piscataway, New Jersey 08854, United States
| | - Tung-Ching Lee
- Department of Food Science, Rutgers, the State University of New Jersey , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Sekar R, Shin HD, DiChristina TJ. Direct conversion of cellulose and hemicellulose to fermentable sugars by a microbially-driven Fenton reaction. BIORESOURCE TECHNOLOGY 2016; 218:1133-1139. [PMID: 27469094 DOI: 10.1016/j.biortech.2016.07.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 07/18/2016] [Accepted: 07/20/2016] [Indexed: 06/06/2023]
Abstract
The aim of this work was to develop a microbially-driven Fenton reaction that fragments cellulose and hemicellulose, degrades cellodextrins and xylodextrins, and produces short-chain oligosaccharides and monomeric sugars in a single bioreactor. The lignocellulose degradation system operates at neutral pH and does not require addition of conventional lignocellulose-degrading enzymes, thus avoiding problems associated with enzyme accessibility and specificity. The ability to produce useful bioproducts was demonstrated by production of the bioplastic polyhydroxybutyrate with the xylan degradation products as starting substrate.
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Affiliation(s)
- Ramanan Sekar
- School of Biology, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Hyun Dong Shin
- School of Biology, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Thomas J DiChristina
- School of Biology, Georgia Institute of Technology, Atlanta, GA 30332, United States.
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18
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Tozakidis IEP, Brossette T, Lenz F, Maas RM, Jose J. Proof of concept for the simplified breakdown of cellulose by combining Pseudomonas putida strains with surface displayed thermophilic endocellulase, exocellulase and β-glucosidase. Microb Cell Fact 2016; 15:103. [PMID: 27287198 PMCID: PMC4901517 DOI: 10.1186/s12934-016-0505-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 06/01/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The production and employment of cellulases still represents an economic bottleneck in the conversion of lignocellulosic biomass to biofuels and other biocommodities. This process could be simplified by displaying the necessary enzymes on a microbial cell surface. Such an approach, however, requires an appropriate host organism which on the one hand can withstand the rough environment coming along with lignocellulose hydrolysis, and on the other hand does not consume the generated glucose so that it remains available for subsequent fermentation steps. RESULTS The robust soil bacterium Pseudomonas putida showed a strongly reduced uptake of glucose above a temperature of 50 °C, while remaining structurally intact hence recyclable, which makes it suitable for cellulose hydrolysis at elevated temperatures. Consequently, three complementary, thermophilic cellulases from Ruminiclostridium thermocellum were displayed on the surface of the bacterium. All three enzymes retained their activity on the cell surface. A mixture of three strains displaying each one of these enzymes was able to synergistically hydrolyze filter paper at 55 °C, producing 20 μg glucose per mL cell suspension in 24 h. CONCLUSION We could establish Pseudomonas putida as host for the surface display of cellulases, and provided proof-of-concept for a fast and simple cellulose breakdown process at elevated temperatures. This study opens up new perspectives for the application of P. putida in the production of biofuels and other biotechnological products.
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Affiliation(s)
- Iasson E P Tozakidis
- Institute of Pharmaceutical and Medicinal Chemistry, Westfälische Wilhelms-Universität Münster, PharmaCampus, Corrensstraße 48, 48149, Münster, Germany.,NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, PharmaCampus, Corrensstraße 48, 48149, Münster, Germany
| | - Tatjana Brossette
- Autodisplay Biotech GmbH, Merowingerplatz 1a, 40225, Düsseldorf, Germany
| | - Florian Lenz
- Institute of Pharmaceutical and Medicinal Chemistry, Westfälische Wilhelms-Universität Münster, PharmaCampus, Corrensstraße 48, 48149, Münster, Germany
| | - Ruth M Maas
- Autodisplay Biotech GmbH, Merowingerplatz 1a, 40225, Düsseldorf, Germany
| | - Joachim Jose
- Institute of Pharmaceutical and Medicinal Chemistry, Westfälische Wilhelms-Universität Münster, PharmaCampus, Corrensstraße 48, 48149, Münster, Germany. .,NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, PharmaCampus, Corrensstraße 48, 48149, Münster, Germany.
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Zhao X, Wang R, Shang Q, Hao H, Li Y, Zhang Y, Guo Z, Wang Y, Xie Z. The new flagella-associated collagen-like proteins ClpB and ClpC of Bacillus amyloliquefaciens FZB42 are involved in bacterial motility. Microbiol Res 2015; 184:25-31. [PMID: 26856450 DOI: 10.1016/j.micres.2015.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 12/03/2015] [Accepted: 12/16/2015] [Indexed: 10/22/2022]
Abstract
Collagen-like proteins (CLPs) share the distinctive Gly-X-Thr repeating amino acid sequence of animal collagens, and contain N- and C-terminal domain making a collagen-like structure in Bacillus amyloliquefaciens FZB42, a plant growth-promoting rhizobacterium. Our previous study demonstrated that CLPs play important roles in biofilm construction and adherence to the surfaces on plant roots. However, bacterial localization of the CLPs remains unclear. Here, disrupted strains on all four clp genes (clpA, clpB, clpC and clpD) shown fewer filament than wild-type bacteria in extracellular matrix under scanning electron microscope (SEM). Transmission electron microscopy (TEM) was used to observe the differences on filament which associated on the cell surface, then the CLPs mutation strains showed less flagella than the wild type. Immunogold labeling determined the location that ClpB and ClpC localized on the flagella surface. In addition, western blotting analysis of crude flagella extracts suggested that the ClpB and ClpC are associated to flagella as well. The mutation strains also reduced motility of swimming on the surface of soft agar medium and changed the architectural of microcolony biofilm edge. The study suggests that collagen-like protein ClpB and ClpC, as novel proteins, associated with flagella in B. amyloliquefaciens.
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Affiliation(s)
- Xia Zhao
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
| | - Ruoyu Wang
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China.
| | - Qianhan Shang
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
| | - Haiting Hao
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; University of Chinese Academy of Sciences, Beijing, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
| | - Yuyao Li
- Key Laboratory of Arid and Grassland Agroecology, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Yubao Zhang
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
| | - Zhihong Guo
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
| | - Yun Wang
- Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China
| | - Zhongkui Xie
- Gaolan Station of Agricultural and Ecological Experiment, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China; Key Laboratory of Stress Physiology and Ecology in Cold and Arid Regions of Gansu Province, Lanzhou, China
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20
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Niu M, Yu Q, Tian P, Gao Z, Wang D, Shi X. Engineering Bacterial Surface Displayed Human Norovirus Capsid Proteins: A Novel System to Explore Interaction Between Norovirus and Ligands. Front Microbiol 2015; 6:1448. [PMID: 26733983 PMCID: PMC4686607 DOI: 10.3389/fmicb.2015.01448] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Accepted: 12/04/2015] [Indexed: 01/24/2023] Open
Abstract
Human noroviruses (HuNoVs) are major contributors to acute nonbacterial gastroenteritis outbreaks. Many aspects of HuNoVs are poorly understood due to both the current inability to culture HuNoVs, and the lack of efficient small animal models. Surrogates for HuNoVs, such as recombinant viral like particles (VLPs) expressed in eukaryotic system or P particles expressed in prokaryotic system, have been used for studies in immunology and interaction between the virus and its receptors. However, it is difficult to use VLPs or P particles to collect or isolate potential ligands binding to these recombinant capsid proteins. In this study, a new strategy was used to collect HuNoVs binding ligands through the use of ice nucleation protein (INP) to display recombinant capsid proteins of HuNoVs on bacterial surfaces. The viral protein-ligand complex could be easily separated by a low speed centrifugation step. This system was also used to explore interaction between recombinant capsid proteins of HuNoVs and their receptors. In this system, the VP1 capsid encoding gene (ORF2) and the protruding domain (P domain) encoding gene (3′ terminal fragment of ORF2) of HuNoVs GI.1 and GII.4 were fused with 5′ terminal fragment of INP encoding gene (inaQn). The results demonstrated that the recombinant VP1 and P domains of HuNoVs were expressed and anchored on the surface of Escherichia coli BL21 cells after the bacteria were transformed with the corresponding plasmids. Both cell surface displayed VP1 and P domains could be recognized by HuNoVs specific antibodies and interact with the viral histo-blood group antigens receptors. In both cases, displayed P domains had better binding abilities than VP1. This new strategy of using displayed HuNoVs capsid proteins on the bacterial surface could be utilized to separate HuNoVs binding components from complex samples, to investigate interaction between the virus and its receptors, as well as to develop an oral vaccine for HuNoVs.
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Affiliation(s)
- Mengya Niu
- Department of Food Science and Technology, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University Shanghai, China
| | - Qianqian Yu
- Department of Food Science and Technology, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University Shanghai, China
| | - Peng Tian
- Produce Safety and Microbiology Research Unit, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture Albany, CA, USA
| | - Zhiyong Gao
- Beijing Center for Diseases Prevention and Control Beijing, China
| | - Dapeng Wang
- Department of Food Science and Technology, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University Shanghai, China
| | - Xianming Shi
- Department of Food Science and Technology, MOST-USDA Joint Research Center for Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University Shanghai, China
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Autodisplay of Human Hyaluronidase Hyal-1 on Escherichia coli and Identification of Plant-Derived Enzyme Inhibitors. Molecules 2015; 20:15449-68. [PMID: 26343612 PMCID: PMC6331893 DOI: 10.3390/molecules200915449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 08/17/2015] [Accepted: 08/18/2015] [Indexed: 11/17/2022] Open
Abstract
Hyaluronan (HA) is the main component of the extracellular matrix (ECM). Depending on its chain size, it is generally accepted to exert diverse effects. High molecular weight HA is anti-angiogenic, immunosuppressive and anti-inflammatory, while lower fragments are angiogenic and inflammatory. Human hyaluronidase Hyal-1 (Hyal-1) is one of the main enzymes in the metabolism of HA. This makes Hyal-1 an interesting target. Not only for functional and mechanistic studies, but also for drug development. In this work, Hyal-1 was expressed on the surface of E. coli, by applying Autodisplay, to overcome formation of inactive “inclusion bodies”. With the cells displaying Hyal-1 an activity assay was performed using “stains-all” dye. Subsequently, the inhibitory effects of four saponins and 14 plant extracts on the activity of surface displayed Hyal-1 were evaluated. The determined IC50 values were 177 µM for glycyrrhizic acid, 108 µM for gypsophila saponin 2, 371 µM for SA1657 and 296 µM for SA1641. Malvae sylvestris flos, Equiseti herba and Ononidis radix extracts showed IC50 values between 1.4 and 1.7 mg/mL. In summary, Autodisplay enabled the expression of functional human target protein Hyal-1 in E. coli and facilitated an accelerated testing of potential inhibitors.
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22
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Bao S, Yu S, Guo X, Zhang F, Sun Y, Tan L, Duan Y, Lu F, Qiu X, Ding C. Construction of a cell-surface display system based on the N-terminal domain of ice nucleation protein and its application in identification of mycoplasma
adhesion proteins. J Appl Microbiol 2015; 119:236-44. [DOI: 10.1111/jam.12824] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 11/30/2022]
Affiliation(s)
- S. Bao
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - S. Yu
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - X. Guo
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - F. Zhang
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - Y. Sun
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - L. Tan
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - Y. Duan
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - F. Lu
- College of Veterinary Medicine; Gansu Agricultural University; Lanzhou China
| | - X. Qiu
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
| | - C. Ding
- Shanghai Veterinary Research Institute; Chinese Academy of Agricultural Sciences; Shanghai China
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Gao S, Li D, Liu Y, Zha E, Zhou T, Yue X. Oral immunization with recombinant hepatitis E virus antigen displayed on the Lactococcus lactis surface enhances ORF2-specific mucosal and systemic immune responses in mice. Int Immunopharmacol 2014; 24:140-5. [PMID: 25445956 DOI: 10.1016/j.intimp.2014.10.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 10/29/2014] [Accepted: 10/31/2014] [Indexed: 11/20/2022]
Abstract
Hepatitis E virus (HEV) as a recognized zoonotic pathogen has posed global burden on public health, which is exacerbated by lack of efficient vaccine. In this study, we constructed a recombinant (inaQ-ORF2 gene fusion) Lactococcus lactis (L. lactis) strain NZ3900 that expresses and displays the hepatitis E virus antigen ORF2 utilizing an ice uncleation protein-based anchor system. After oral vaccination of BALB/c mice, significantly higher levels of ORF2-specific mucosal IgA and serum IgG were detected and cellular immunity was also induced. These findings further support that L. lactis-based HEV antigen vaccines could be used for human and animal protection against infection.
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Affiliation(s)
- Shenyang Gao
- Department of Animal Husbandry & Veterinary Medicine, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China; Department of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang 110161, China
| | - Dandan Li
- Animal Quarantine Lab, Inspection & Quarantine Technology Center of Hainan Entry-Exit Inspection & Quarantine Bureau, Haikou 570000, China
| | - Ying Liu
- Department of Animal Husbandry & Veterinary Medicine, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China
| | - Enhui Zha
- Department of Animal Husbandry & Veterinary Medicine, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China; Department of Food Science and Engineering, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China.
| | - Tiezhong Zhou
- Department of Animal Husbandry & Veterinary Medicine, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China
| | - Xiqing Yue
- Department of Food Science, Shenyang Agricultural University, No.120 Dongling Road, Shenyang 110161, China; Department of Animal Husbandry & Veterinary Medicine, Liaoning Medical University, No. 5-48 Renmin Street, Jinzhou 121001, China
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Schüürmann J, Quehl P, Festel G, Jose J. Bacterial whole-cell biocatalysts by surface display of enzymes: toward industrial application. Appl Microbiol Biotechnol 2014; 98:8031-46. [DOI: 10.1007/s00253-014-5897-y] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/10/2014] [Accepted: 06/11/2014] [Indexed: 11/24/2022]
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Expression and localization of an ice nucleating protein from a soil bacterium, Pseudomonas borealis. Cryobiology 2014; 69:110-8. [PMID: 24930584 DOI: 10.1016/j.cryobiol.2014.06.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/02/2014] [Accepted: 06/04/2014] [Indexed: 11/20/2022]
Abstract
An ice nucleating protein (INP) coding region with 66% sequence identity to the INP of Pseudomonas syringae was previously cloned from P. borealis, a plant beneficial soil bacterium. Ice nucleating activity (INA) in the P. borealis DL7 strain was highest after transfer of cultures to temperatures just above freezing. The corresponding INP coding sequence (inaPb or ina) was used to construct recombinant plasmids, with recombinant expression visualized using a green fluorescent protein marker (gfp encoding GFP). Although the P. borealis strain was originally isolated by ice-affinity, bacterial cultures with membrane-associated INP-GFP did not adsorb to pre-formed ice. Employment of a shuttle vector allowed expression of ina-gfp in both Escherichia coli and Pseudomonas cells. At 27 °C, diffuse fluorescence appeared throughout the cells and was associated with low INA. However, after transfer of cultures to 4 °C, the protein localized to the poles coincident with high INA. Transformants with truncated INP sequences ligated to either gfp, or an antifreeze protein-gfp fusion showed that the repetitive ice-nucleation domain was not necessary for localization. Such localization is consistent with the flanking residues of the INP associating with a temperature-dependent secretion apparatus. A polar location would facilitate INP-INP interactions resulting in the formation of larger aggregates, serving to increase INA. Expression of INPs by P. borealis could function as an efficient atmospheric dispersal mechanism for these soil bacteria, which are less likely to use these proteins for nutrient procurement, as has been suggested for P. syringae.
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Kwak Y, Lee SE, Shin JH. Expression of organophosphorus hydrolase in Escherichia coli for use as whole-cell biocatalyst. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcatb.2013.09.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Huang GL, Anderson TD, Clubb RT. Engineering microbial surfaces to degrade lignocellulosic biomass. Bioengineered 2013; 5:96-106. [PMID: 24430239 PMCID: PMC4049913 DOI: 10.4161/bioe.27461] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Renewable lignocellulosic plant biomass is a promising feedstock from which to produce biofuels, chemicals, and materials. One approach to cost-effectively exploit this resource is to use consolidating bioprocessing (CBP) microbes that directly convert lignocellulose into valuable end products. Because many promising CBP-enabling microbes are non-cellulolytic, recent work has sought to engineer them to display multi-cellulase containing minicellulosomes that hydrolyze biomass more efficiently than isolated enzymes. In this review, we discuss progress in engineering the surfaces of the model microorganisms: Bacillus subtilis, Escherichia coli, and Saccharomyces cerevisiae. We compare the distinct approaches used to display cellulases and minicellulosomes, as well as their surface enzyme densities and cellulolytic activities. Thus far, minicellulosomes have only been grafted onto the surfaces of B. subtilis and S. cerevisiae, suggesting that the absence of an outer membrane in fungi and Gram-positive bacteria may make their surfaces better suited for displaying the elaborate multi-enzyme complexes needed to efficiently degrade lignocellulose.
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Affiliation(s)
- Grace L Huang
- Department of Chemistry and Biochemistry; University of California-Los Angeles; Los Angeles, CA USA; UCLA-DOE Institute of Genomics and Proteomics; University of California-Los Angeles; Los Angeles, CA USA
| | - Timothy D Anderson
- Department of Chemistry and Biochemistry; University of California-Los Angeles; Los Angeles, CA USA; UCLA-DOE Institute of Genomics and Proteomics; University of California-Los Angeles; Los Angeles, CA USA
| | - Robert T Clubb
- Department of Chemistry and Biochemistry; University of California-Los Angeles; Los Angeles, CA USA; UCLA-DOE Institute of Genomics and Proteomics; University of California-Los Angeles; Los Angeles, CA USA; Molecular Biology Institute; University of California-Los Angeles; Los Angeles, CA USA
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Kim SJ, Song JK, Kim HK. Cell surface display of Staphylococcus haemolyticus L62 lipase in Escherichia coli and its application as a whole cell biocatalyst for biodiesel production. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.07.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Park TJ, Heo NS, Yim SS, Park JH, Jeong KJ, Lee SY. Surface display of recombinant proteins on Escherichia coli by BclA exosporium of Bacillus anthracis. Microb Cell Fact 2013; 12:81. [PMID: 24053632 PMCID: PMC3850424 DOI: 10.1186/1475-2859-12-81] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 09/17/2013] [Indexed: 11/12/2022] Open
Abstract
Background The anchoring motif is one of the most important aspects of cell surface display as well as efficient and stable display of target proteins. Thus, there is currently a need for the identification and isolation of novel anchoring motifs. Results A system for the display of recombinant proteins on the surface of Escherichia coli was developed using the Bacillus anthracis exosporal protein (BclA) as a new anchoring motif. For the surface display of recombinant proteins, the BAN display platform was constructed in which a target protein is linked to the C-terminus of N-terminal domain (21 amino acids) of BclA. The potential application of BAN platform for cell surface display was demonstrated with two model proteins of different size, the Bacillus sp. endoxylanase (XynA) and monooxygenase (P450 BM3m2). Through experimental analysis including outer membrane fractionation, confocal microscopy and activity assay, it was clearly confirmed that both model proteins were successfully displayed with high activities on the E. coli cell surface. Conclusions These results of this study suggest that the strategy employing the B. anthracis BclA as an anchoring motif is suitable for the display of heterologous proteins on the surface of E. coli and consequently for various biocatalytic applications as well as protein engineering.
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Affiliation(s)
- Tae Jung Park
- BioProcess Engineering Research Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea.
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Gu MZ, Wang JC, Liu WB, Zhou Y, Ye BC. Expression and displaying of β-glucosidase from Streptomyces coelicolor A3 in Escherichia coli. Appl Biochem Biotechnol 2013; 170:1713-23. [PMID: 23722947 DOI: 10.1007/s12010-013-0301-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2012] [Accepted: 05/16/2013] [Indexed: 10/26/2022]
Abstract
Two genes encoding β-glucosidase from Streptomyces coelicolor A3(2) were cloned and expressed in Escherichia coli BL21 (DE3). Two recombinant enzymes (SC1059 and SC7558) were purified and characterized. The molecular mass of the purified SC1059 and SC7558 as determined by SDS-PAGE agrees with the calculated values (51.0 and 52.2 kDa, respectively). Optimal temperature and pH for the two enzymes were both at 35 °C and 6.0. SC7558 exhibited to be much more active than SC1059 under optimal conditions, and it was recombined with ice nucleation protein which could anchor on the surface of the cell. The optimal temperature and pH of the recombinant cells were 55 °C and 8.0, respectively. The resultant cells were to be used as material for immobilized β-glucosidase, which is convenient to catalyze substrates in various complicated conditions.
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Affiliation(s)
- Ming-Zhu Gu
- Lab of Biosystems and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Meilong Rd. 130, Shanghai 200237, China
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31
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Polysaccharide hydrolysis with engineered Escherichia coli for the production of biocommodities. ACTA ACUST UNITED AC 2013; 40:401-10. [DOI: 10.1007/s10295-013-1245-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2012] [Accepted: 02/13/2013] [Indexed: 02/06/2023]
Abstract
Abstract
Escherichia coli can ferment a broad range of sugars, including pentoses, hexoses, uronic acids, and polyols. These features make E. coli a suitable microorganism for the development of biocatalysts to be used in the production of biocommodities and biofuels by metabolic engineering. E. coli cannot directly ferment polysaccharides because it does not produce and secrete the necessary saccharolytic enzymes; however, there are many genetic tools that can be used to confer this ability on this prokaryote. The construction of saccharolytic E. coli strains will reduce costs and simplify the production process because the saccharification and fermentation can be conducted in a single reactor with a reduced concentration or absence of additional external saccharolytic enzymes. Recent advances in metabolic engineering, surface display, and excretion of hydrolytic enzymes provide a framework for developing E. coli strains for the so-called consolidated bioprocessing. This review presents the different strategies toward the development of E. coli strains that have the ability to display and secrete saccharolytic enzymes to hydrolyze different sugar-polymeric substrates and reduce the loading of saccharolytic enzymes.
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Kojima M, Akahoshi T, Okamoto K, Yanase H. Expression and surface display of Cellulomonas endoglucanase in the ethanologenic bacterium Zymobacter palmae. Appl Microbiol Biotechnol 2012; 96:1093-104. [DOI: 10.1007/s00253-012-4424-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Revised: 09/06/2012] [Accepted: 09/07/2012] [Indexed: 11/29/2022]
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Li Q, Yan Q, Chen J, He Y, Wang J, Zhang H, Yu Z, Li L. Molecular characterization of an ice nucleation protein variant (inaQ) from Pseudomonas syringae and the analysis of its transmembrane transport activity in Escherichia coli. Int J Biol Sci 2012; 8:1097-108. [PMID: 22991498 PMCID: PMC3445048 DOI: 10.7150/ijbs.4524] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2012] [Accepted: 08/27/2012] [Indexed: 01/05/2023] Open
Abstract
The ice nucleation protein (INP) of Pseudomonas syringae has gained scientific interest not only because of its pathogenicity of foliar necroses but also for its wide range of potential applications, such as in snow making, frozen food preparation, and surface-display system development. However, studies on the transport activity of INP remain lacking. In the present study, a newly identified INP-gene variant, inaQ, from a P. syringae MB03 strain was cloned. Its structural domains, signal sequences, and the hydrophilicity or hydrophobicity of each domain, were then characterized. The deduced amino acid sequence of InaQ shares similar protein domains with three P. syringae INPs, namely, InaK, InaZ, and InaV, which were identified as an N-terminal domain, a central repeating domain, and a C-terminal domain. The expression of the full-length InaQ and of various truncated variants was induced in Escherichia coli to analyze their transmembrane transport and surface-binding activities, while using the green fluorescence protein (GFP) as the fusion partner. With two transmembrane segments and a weak secretion signal, the N-terminal domain (InaQ-N) alone was found to be responsible for the transport process as well as for the binding to the outer membrane, whereas the C-terminal region was nonfunctional in protein transport. Increased membrane transport and surface-binding capacities were induced by a low isopropyl-β-D-thiogalactoside concentration (0.1 mmol/l) but not by culture temperatures (15 ºC to 37 ºC). Furthermore, by constructing the GFP-fused proteins with a single InaQ-N, as well as two and three tandemly aligned InaQ-N molecules, the transport and membrane-binding activities of these proteins were compared using Western blot analysis, immmunofluorescence microscopy, and assays of the GFP specific fluorescence intensity of subcellular fractions and flow cytometry, which showed that the increase of InaQ-N repeats resulted in a coordinated increase of the surface-immobilization efficiency. Therefore, the results of this study can serve as a molecular basis for improving the performance of INP-based cell surface-display systems.
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Affiliation(s)
- Qianqian Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
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Liang B, Li L, Mascin M, Liu A. Construction of Xylose Dehydrogenase Displayed on the Surface of Bacteria Using Ice Nucleation Protein for Sensitive d-Xylose Detection. Anal Chem 2011; 84:275-82. [DOI: 10.1021/ac202513u] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bo Liang
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road Qingdao, 266101, People’s Republic of China
| | - Liang Li
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road Qingdao, 266101, People’s Republic of China
| | - Marco Mascin
- Dipartimento di Chimica, Universita
degli Studi di Firenze, 50019 Sesto Fiorentino, Italy
| | - Aihua Liu
- Laboratory for Biosensing, Qingdao Institute of Bioenergy & Bioprocess Technology, and Key Laboratory of Bioenergy, Chinese Academy of Sciences, 189 Songling Road Qingdao, 266101, People’s Republic of China
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Dou JL, Jing T, Fan JJ, Yuan ZM. Surface display of domain III of Japanese encephalitis virus E protein on Salmonella typhimurium by using an ice nucleation protein. Virol Sin 2011; 26:409-17. [PMID: 22160941 DOI: 10.1007/s12250-011-3216-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Accepted: 10/21/2011] [Indexed: 10/14/2022] Open
Abstract
A bacterial cell surface display technique based on an ice nucleation protein has been employed for the development of live vaccine against viral infection. Due to its ubiquitous ability to invade host cells, Salmonella typhimurium might be a good candidate for displaying viral antigens. We demonstrated the surface display of domain III of Japanese encephalitis virus E protein and the enhanced green fluorescent protein on S. typhimurium BRD509 using the ice nucleation protein. The effects of the motif in the ice nucleation protein on the effective display of integral protein were also investigated. The results showed that display motifs in the protein can target integral foreign protein on the surface of S. typhimurium BRD509. Moreover, recombinant strains with surface displayed viral proteins retained their invasiveness, suggesting that the recombinant S. typhimurium can be used as live vaccine vector for eliciting complete immunogenicity. The data may yield better understanding of the mechanism by which ice nucleation protein displays foreign proteins in the Salmonella strain.
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Affiliation(s)
- Jian-Lin Dou
- Key Laboratory of Agricultural and Environmental Microbiology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
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36
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Fan LH, Liu N, Yu MR, Yang ST, Chen HL. Cell surface display of carbonic anhydrase on Escherichia coli using ice nucleation protein for CO₂ sequestration. Biotechnol Bioeng 2011; 108:2853-64. [PMID: 21732326 DOI: 10.1002/bit.23251] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 06/07/2011] [Accepted: 06/20/2011] [Indexed: 11/11/2022]
Abstract
Carbonic anhydrase (CA) has recently gained renewed interests for its potential as a mass-transfer facilitator for CO(2) sequestration. However, the low stability and high price severely limit its applications. In this work, the expression of α-CA from Helicobacter pylori on the outer membrane of Escherichia coli using a surface-anchoring system derived from ice nucleation protein (INP) from Pseudomonas syringae was developed. To find the best surface anchoring motif, full-length INP (114 kDa), truncated INP (INP-NC, 33 kDa), and INP's N-domain with first two subunits (INP-N, 22 kDa) were evaluated. Two vectors, pKK223-3 and pET22b(+), with different promoters (T7 and Tac) were used to construct the fusion genes, and for each vector, three recombinant strains, each expressing a different length of the fusion protein, were obtained. SDS-PAGE, Western blot, immunofluorescence microscopy, FACS, and whole-cell ELISA confirmed the expression of fusion proteins on the surface of E. coli. The smallest fusion protein with INP-N as the anchoring motif had the highest expression level and CA activity, suggesting that INP-N is the best carrying protein due to its smaller size. Also, the T7 promoter in pET22b(+) induced with 0.2 mM IPTG gave high protein expression levels, whereas the Tac promoter in pKK223-3 gave low expression levels. The surface displayed CA was at least twofold more stable than that of the free form, and did not show any adverse effect on cell growth and outer membrane integrity. Cells with surface displayed CA were successfully used to facilitate CO(2) sequestration in contained liquid membrane (CLM).
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Affiliation(s)
- Li-Hai Fan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, USA
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37
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Cell surface display of poliovirus receptor on Escherichia coli, a novel method for concentrating viral particles in water. Appl Environ Microbiol 2011; 77:5141-8. [PMID: 21622793 DOI: 10.1128/aem.00071-11] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The lack of efficient methods for concentrating viruses in water samples leads to underreporting of viral contamination in source water. A novel strategy for viral concentration was developed using the expression of target virus receptors on bacterial cells. Poliovirus type 1, the most studied enterovirus, was used as a surrogate for enteric viruses. The human poliovirus receptor (hPVR) gene was expressed on the surface of Escherichia coli cells by using the ice nucleation protein (INP) gene. The hPVR gene was ligated to the 3' end of the INP gene after the removal of the stop codon. The resulting open reading frame (ORF) was used for the projection of hPVR onto the outer membrane of E. coli. Gene expression was tested by SDS-PAGE, Western blot, and dot blot analyses, and virion capture ability was confirmed by transmission electron microscopy. The application of engineered E. coli cells for capturing viruses in 1-liter samples of source and drinking water resulted in 75 to 99% procedural recovery efficiency. Cell surface display of viral receptors on bacterial cells opens a new prospect for an efficient and inexpensive alternative tool for capturing and concentrating waterborne viruses in water samples.
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38
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Wu JY, Tsai TY, Liu TT, Lin CC, Chen JH, Yang SC, Shieh CJ, Liu YC. Production of recombinant EGFP via surface display of ice nucleation protein and self-cleavage intein. Biochem Eng J 2011. [DOI: 10.1016/j.bej.2011.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Anchorage of GFP fusion on the cell surface of Pseudomonas putida. Biodegradation 2010; 22:51-61. [DOI: 10.1007/s10532-010-9375-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Accepted: 05/25/2010] [Indexed: 11/26/2022]
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40
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Yang C, Song C, Mulchandani A, Qiao C. Genetic engineering of Stenotrophomonas strain YC-1 to possess a broader substrate range for organophosphates. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:6762-6766. [PMID: 20455565 DOI: 10.1021/jf101105s] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this work, Stenotrophomonas sp. strain YC-1, a native soil bacterium that produces methyl parathion hydrolase (MPH), was genetically engineered to possess a broader substrate range for organophosphates (OPs). A surface anchor system derived from the truncated ice nucleation protein (INPNC) from Pseudomonas syringae was used to target organophosphorus hydrolase (OPH) onto the cell surface of strain YC-1, reducing the potential substrate uptake limitation. The surface localization of INPNC-OPH was verified by cell fractionation, Western blot, proteinase accessibility, and immunofluorescence microscopy. No growth inhibition was observed for the engineered strain, and suspended cultures retained almost 100% activity over a period of 2 weeks. Concomitant expression of OPH in strain YC-1 resulted in a recombinant strain capable of simultaneously degrading diethyl and dimethyl OPs. A mixture of six OP pesticides (0.2 mM each) could be degraded completely within 5 h. The broader substrate specificity in combination with the rapid degradation rate makes this engineered strain a promising candidate for in situ remediation of OP-contaminated sites.
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Affiliation(s)
- Chao Yang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
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41
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Li Q, Yu Z, Shao X, He J, Li L. Improved phosphate biosorption by bacterial surface display of phosphate-binding protein utilizing ice nucleation protein. FEMS Microbiol Lett 2009; 299:44-52. [PMID: 19686343 DOI: 10.1111/j.1574-6968.2009.01724.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The conventional enhanced biological phosphorus removal (EBPR) system often deteriorates at low chemical oxygen demand (COD) or under aeration conditions. A new approach that incorporates phosphate-eutrophic wastewater remediation was introduced through immobilization of an intracellular phosphate-binding protein (PBP) onto the surface of Pseudomonas putida or Escherichia coli, using the N-terminal anchor (InaQ-N) of a newly identified ice nucleation protein from Pseudomonas syringae. A green fluorescent protein-fusion protein was expressed and used to confirm surface localization. The PBP was then targeted to the surface of E. coli JM109 and P. putida AB92019. The engineered P. putida and E. coli microorganisms were capable of absolute biosorption of total phosphates at rates of 60 and 80 mg L(-1), respectively, over 5 h. In the recombinant P. putida cells, a surface-immobilized PBP fusion that had three tandemly repeated InaQ-Ns exhibited the maximum increment in phosphate biosorption, at sixfold compared with the control strain. Even heat-killed recombinant cells of either P. putida or E. coli retained substantial biosorptive activities. The current study demonstrates that the bacterial surface display of PBP should be considered as a strong contender for generating organisms capable of functioning in EBPR systems under low COD, resulting in improved removal of eutrophic phosphorus from wastewaters.
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Affiliation(s)
- Qianqian Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
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42
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Purification and characterization of a novel halostable cellulase from Salinivibrio sp. strain NTU-05. Enzyme Microb Technol 2009. [DOI: 10.1016/j.enzmictec.2009.02.006] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Stable expression and secretion of polyhydroxybutyrate depolymerase of Paucimonas lemoignei in Escherichia coli. J Microbiol 2008; 46:662-9. [DOI: 10.1007/s12275-008-0283-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2008] [Accepted: 11/26/2008] [Indexed: 11/26/2022]
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44
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Xu Y, Liu Q, Zhou L, Yang Z, Zhang Y. Surface display of GFP by Pseudomonas syringae truncated ice nucleation protein in attenuated Vibrio anguillarum strain. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2008; 10:701-708. [PMID: 18535860 DOI: 10.1007/s10126-008-9108-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2007] [Revised: 02/27/2008] [Accepted: 04/16/2008] [Indexed: 05/26/2023]
Abstract
Microbial cell surface display of foreign proteins has been widely developed for many potential applications in live vaccine construction, whole-cell biocatalysts, and bioadsorption. To investigate the feasibility of displaying heterologous proteins on the surface of attenuated Vibrio anguillarum strain for potential multivalent live vaccine development, different display systems were built upon a truncated ice nucleation protein (INP) from Pseudomonas syringae ICMP3023 whose N- and C-terminal domains were considered to be the putative membrane-anchoring motifs. Green fluorescent protein (GFP), as a reporter, was fused with the display systems in different forms of N-GFP, NC-GFP, and N-GFP-C. Analysis of the total expression level and surface localization of GFP demonstrated that the truncated P. syringae INP could be used to display foreign protein in V. anguillarum, while the system of N-GFP showed the higher levels of total expression and surface display based on unit cell density among the three and might be available for further carrier vaccine development.
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Affiliation(s)
- Yuzhou Xu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
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45
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Lei Y, Mulchandani A, Chen W. Improved Degradation of Organophosphorus Nerve Agents and p-Nitrophenol by Pseudomonas putida JS444 with Surface-Expressed Organophosphorus Hydrolase. Biotechnol Prog 2008; 21:678-81. [PMID: 15932242 DOI: 10.1021/bp049590l] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pseudomonas putida JS444, isolated from p-nitrophenol (PNP) contaminated waste sites, was genetically engineered to simultaneously degrade organophosphorus pesticides (OP) and PNP. A surface anchor system derived from the ice-nucleation protein (INP) from Pseudomonas syringae was used to target the organophosphorus hydrolase (OPH) onto the surface of Pseudomonas putida JS444, reducing the potential substrate uptake limitation. Engineered cells were capable of targeting OPH onto the cell surface as demonstrated by western blotting, cell fractionation, and immunofluorescence microscopy. The engineered P. putida JS444 degraded organophosphates as well as PNP rapidly without instability problems associated with the engineered Moraxella sp. The initial hydrolysis rate was 7.90, 3.54, and 1.53 micromol/h/mg dry weight for paraoxon, parathion, and methyl parathion, respectively. The excellent stability in combination with the rapid degradation rate for organophosphates and PNP make this engineered strain an ideal biocatalyst for complete mineralization of organophosphates.
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Affiliation(s)
- Yu Lei
- Department of Chemical and Environmental Engineeirng, University of California, Riverside, California 92521, USA
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46
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High cell density cultivation of Escherichia coli with surface anchored transglucosidase for use as whole-cell biocatalyst for alpha-arbutin synthesis. J Ind Microbiol Biotechnol 2007; 35:95-101. [PMID: 17973131 DOI: 10.1007/s10295-007-0270-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2007] [Accepted: 10/14/2007] [Indexed: 10/22/2022]
Abstract
A fed-batch culture strategy for the production of recombinant Escherichia coli cells anchoring surface-displayed transglucosidase for use as a whole-cell biocatalyst for alpha-arbutin synthesis was developed. Lactose was used as an inducer of the recombinant protein. In fed-batch cultures, dissolved oxygen was used as the feed indicator for glucose, thus accumulation of glucose and acetate that affected the cell growth and recombinant protein production was avoided. Fed-batch fermentation with lactose induction yielded a biomass of 18 g/L, and the cells possessed very high transglucosylation activity. In the synthesis of alpha-arbutin by hydroquinone glucosylation, the whole-cell biocatalysts showed a specific activity of 501 nkat/g cell and produced 21 g/L of arbutin, which corresponded to 76% molar conversion. A sixfold increased productivity of whole cell biocatalysts was obtained in the fed-batch culture with lactose induction, as compared to batch culture induced by IPTG.
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47
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Wu ML, Tsai CY, Chen TH. Cell surface display of Chi92 on Escherichia coli using ice nucleation protein for improved catalytic and antifungal activity. FEMS Microbiol Lett 2007; 256:119-25. [PMID: 16487328 DOI: 10.1111/j.1574-6968.2006.00115.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The gene encoding chitinase 92 (Chi92) from Aeromonas hydrophila JP10 has been displayed on the cell surface of Escherichia coli using the N-terminal region of ice nucleation proteins (INPN) as an anchoring motif. Immunofluorescence microscopy confirmed that Chi92 was anchored on the cell surface. Western blot analysis further identified the synthesis of INP derivatives containing the N-terminal domain INPN-Chi92 fusion protein of the expected size (112 kDa). Whole cell enzyme assay indicated that the displayed Chi92 showed enhanced catalytic activity toward colloidal chitin. In addition, the Chi92-displayed cells exhibited inhibitory effects on the mycelial growth of phytopathogenic fungi, including Fusarium decemcellulare, Sclerotium rolfsii, Rhizoctonia solani kuhn, and Fusarium oxysporum f.sp. melonis. This study suggested that the INP-based display systems can be used to express a large protein (90 kDa Chi92) on the cell surface of E. coli without growth inhibition. In addition, the display of chitinase on the cell surface may provide an attractive method for the development of biocontrol agents against phytopathogenic fungi.
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Affiliation(s)
- Mei Li Wu
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung, Taiwan.
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48
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Yim SK, Jung HC, Pan JG, Kang HS, Ahn T, Yun CH. Functional expression of mammalian NADPH–cytochrome P450 oxidoreductase on the cell surface of Escherichia coli. Protein Expr Purif 2006; 49:292-8. [PMID: 16829136 DOI: 10.1016/j.pep.2006.05.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Revised: 05/22/2006] [Accepted: 05/23/2006] [Indexed: 11/20/2022]
Abstract
To develop a whole-cell oxidoreductase system without the practical limitation of substrate/product transport, easy preparation, stability of enzymes, and low expression levels, we here report the development of a whole cell biocatalyst displaying rat NADPH-cytochrome P450 oxidoreductase (CPR, 77-kDa) on the surface of Escherichia coli by using ice-nucleation protein from Pseudomonas syringae. Surface localization and functionality of the CPR were verified by flow cytometry, electron microscopy, and measurements of enzyme activities. The results of this study comprise the first report of microbial cell-surface display of diflavin-containing mammalian enzymes. This system will allow us to select and develop oxidoreductases, containing bulky and complex prosthetic groups of FAD and FMN, into practically useful whole-cell biocatalysts for broad biological and biotechnological applications including the selective synthesis of new chemicals and pharmaceuticals, bioconversion, bioremediation, and bio-chip development.
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Affiliation(s)
- Sung-Kun Yim
- Hormone Research Center and School of Biological Sciences and Technology, Chonnam National University, Gwangju 500-757, Republic of Korea
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Boer H, Simolin H, Cottaz S, Söderlund H, Koivula A. Heterologous expression and site-directed mutagenesis studies of two Trichoderma harzianum chitinases, Chit33 and Chit42, in Escherichia coli. Protein Expr Purif 2006; 51:216-26. [PMID: 16997574 DOI: 10.1016/j.pep.2006.07.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2006] [Revised: 07/26/2006] [Accepted: 07/27/2006] [Indexed: 10/24/2022]
Abstract
Heterologous expression of two fungal chitinases, Chit33 and Chit42, from Trichoderma harzianum was tested in the different compartments and on the surface of Escherichia coli cells. Our goal was to find a fast and efficient expression system for protein engineering and directed evolution studies of the two fungal enzymes. Cytoplasmic overexpression resulted in both cases in inclusion body formation, where active enzyme could be recovered after refolding. Periplasmic expression of Chit33, and especially of Chit42, proved to be better suited for mutagenesis purposes. Recombinant chitinases from the periplasmic expression system showed activity profiles similar to those of the native proteins. Both chitinases also degraded a RET (resonance energy transfer) based bifunctionalized chitinpentaose substrate in a similar manner as reported for some putative exochitinases in the glycosyl hydrolase family 18, offering a sensitive way to assay their activities. We further demonstrated that Chit42 can also be displayed on E. coli surface and the enzymatic activity can be measured directly from the whole cells using methylumbelliferyl-chitinbioside as a substrate. The periplasmic expression and the surface display of Chit42, both offer a suitable expression system for protein engineering and activity screening in a microtiter plate scale. As a first mutagenesis approach we verified the essential role of the two carboxylic acid residues E172 (putative proton donor) and D170 (putative stabilizer) in the catalytic mechanism of Chit42, and additionally the role of the carboxylic acid E145 (putative proton donor) in the catalytic mechanism of Chit33.
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Affiliation(s)
- Harry Boer
- VTT Technical Research Centre of Finland, P.O. Box 1000, FI-02044 VTT, Finland.
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Jung HC, Kwon SJ, Pan JG. Display of a thermostable lipase on the surface of a solvent-resistant bacterium, Pseudomonas putida GM730, and its applications in whole-cell biocatalysis. BMC Biotechnol 2006; 6:23. [PMID: 16620394 PMCID: PMC1459859 DOI: 10.1186/1472-6750-6-23] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Accepted: 04/19/2006] [Indexed: 12/02/2022] Open
Abstract
Background Whole-cell biocatalysis in organic solvents has been widely applied to industrial bioprocesses. In two-phase water-solvent processes, substrate conversion yields and volumetric productivities can be limited by the toxicity of solvents to host cells and by the low mass transfer rates of the substrates from the solvent phase to the whole-cell biocatalysts in water. Results To solve the problem of solvent toxicity, we immobilized a thermostable lipase (TliA) from Pseudomonas fluorescens on the cell surface of a solvent-resistant bacterium, Pseudomonas putida GM730. Surface immobilization of enzymes eliminates the mass-transfer limitation imposed by the cell wall and membranes. TliA was successfully immobilized on the surface of P. putida cells using the ice-nucleation protein (INP) anchoring motif from Pseudomonas syrinage. The surface location was confirmed by flow cytometry, protease accessibility and whole-cell enzyme activity using a membrane-impermeable substrate. Three hundred and fifty units of whole-cell hydrolytic activity per gram dry cell mass were obtained when the enzyme was immobilized with a shorter INP anchoring motif (INPNC). The surface-immobilized TliA retained full enzyme activity in a two-phase water-isooctane reaction system after incubation at 37°C for 12 h, while the activity of the free form enzyme decreased to 65% of its initial value. Whole cells presenting immobilized TliA were shown to catalyze three representative lipase reactions: hydrolysis of olive oil, synthesis of triacylglycerol and chiral resolution. Conclusion In vivo surface immobilization of enzymes on solvent-resistant bacteria was demonstrated, and appears to be useful for a variety of whole-cell bioconversions in the presence of organic solvents.
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Affiliation(s)
- Heung-Chae Jung
- National Research Laboratory of Microbial Display, GenoFocus, Inc., 461-58 Jeonmindong, Yusong, Daejeon 305-811, Republic of Korea
- Systems Microbiology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 52 Oundong, Yusong, Daejeon 305-333, Republic of Korea
| | - Seok-Joon Kwon
- National Research Laboratory of Microbial Display, GenoFocus, Inc., 461-58 Jeonmindong, Yusong, Daejeon 305-811, Republic of Korea
- Present address: Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA
| | - Jae-Gu Pan
- National Research Laboratory of Microbial Display, GenoFocus, Inc., 461-58 Jeonmindong, Yusong, Daejeon 305-811, Republic of Korea
- Systems Microbiology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 52 Oundong, Yusong, Daejeon 305-333, Republic of Korea
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