1
|
Su Y, Chen S, Liu S, Wang Y, Chen X, Xu M, Cai S, Pan N, Qiao K, Chen B, Yang S, Liu Z. Affinity Purification and Molecular Characterization of Angiotensin-Converting Enzyme (ACE)-Inhibitory Peptides from Takifugu flavidus. Mar Drugs 2023; 21:522. [PMID: 37888457 PMCID: PMC10608451 DOI: 10.3390/md21100522] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023] Open
Abstract
An affinity chromatography filler of CNBr-activated Sepharose 4B-immobilized ACE was used to purify ACE-inhibitory peptides from Takifugu flavidus protein hydrolysate (<1 kDa). Twenty-four peptides with an average local confidence score (ALC) ≥ 80% from bounded components (eluted by 1 M NaCl) were identified by LC-MS/MS. Among them, a novel peptide, TLRFALHGME, with ACE-inhibitory activity (IC50 = 93.5 µmol·L-1) was selected. Molecular docking revealed that TLRFALHGME may interact with the active site of ACE through H-bond, hydrophobic, and electrostatic interactions. The total binding energy (ΔGbinding) of TLRFALHGME was estimated to be -82.7382 kJ·mol-1 by MD simulations, indicating the favorable binding of peptides with ACE. Furthermore, the binding affinity of TLRFALHGME to ACE was determined by surface plasmon resonance (SPR) with a Kd of 80.9 µmol, indicating that there was a direct molecular interaction between them. TLRFALHGME has great potential for the treatment of hypertension.
Collapse
Affiliation(s)
- Yongchang Su
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China;
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Shicheng Chen
- Medical Laboratory Sciences Program, College of Health and Human Sciences, Northern Illinois University, DeKalb, IL 60015, USA;
| | - Shuji Liu
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Yin Wang
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Xiaoting Chen
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Min Xu
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Shuilin Cai
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Nan Pan
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Kun Qiao
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Bei Chen
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| | - Suping Yang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China;
| | - Zhiyu Liu
- Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province, Fisheries Research Institute of Fujian, Xiamen 361013, China; (S.L.); (Y.W.); (X.C.); (M.X.); (S.C.); (N.P.); (K.Q.); (B.C.)
| |
Collapse
|
2
|
Eaglesham JB, Garcia A, Berkmen M. Production of antibodies in SHuffle Escherichia coli strains. Methods Enzymol 2021; 659:105-144. [PMID: 34752282 DOI: 10.1016/bs.mie.2021.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Antibodies are globally important macromolecules, used for research, diagnostics, and as therapeutics. The common mammalian antibody immunoglobulin G (IgG) is a complex glycosylated macromolecule, composed of two heavy chains and two light chains held together by multiple disulfide bonds. For this reason, IgG and related antibody fragments are usually produced through secretion from mammalian cell lines, such as Chinese Hamster Ovary cells. However, there is growing interest in production of antibodies in prokaryotic systems due to the potential for rapid and cheap production in a highly genetically manipulable system. Research on oxidative protein folding in prokaryotes has enabled engineering of Escherichia coli strains capable of producing IgG and other disulfide bonded proteins in the cytoplasm, known as SHuffle. In this protocol, we provide a review of research on prokaryotic antibody production, guidelines on cloning of antibody expression constructs, conditions for an initial expression and purification experiment, and parameters which may be optimized for increased purification yields. Last, we discuss the limitations of prokaryotic antibody production, and highlight potential future avenues for research on antibody expression and folding.
Collapse
|
3
|
Mato A, Blanco FG, Maestro B, Sanz JM, Pérez-Gil J, Prieto MA. Dissecting the Polyhydroxyalkanoate-Binding Domain of the PhaF Phasin: Rational Design of a Minimized Affinity Tag. Appl Environ Microbiol 2020; 86:e00570-20. [PMID: 32303541 PMCID: PMC7267194 DOI: 10.1128/aem.00570-20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 04/10/2020] [Indexed: 12/13/2022] Open
Abstract
Phasin PhaF from Pseudomonas putida consists of a modular protein whose N-terminal domain (BioF) has been demonstrated to be responsible for binding to the polyhydroxyalkanoate (PHA) granule. BioF has been exploited for biotechnological purposes as an affinity tag in the functionalization of PHA beads with fusion proteins both in vivo and in vitro The structural model of this domain suggests an amphipathic α-helical conformation with the hydrophobic residues facing the PHA granule. In this work, we analyzed the mean hydrophobicity and the hydrophobic moment of the native BioF tag to rationally design shorter versions that maintain affinity for the granule. Hybrid proteins containing the green fluorescent protein (GFP) fused to the BioF derivatives were studied for in vivo localization on PHA, stability on the surface of the PHA granule against pH, temperature, and ionic strength, and their possible influence on PHA synthesis. Based on the results obtained, a minimized BioF tag for PHA functionalization has been proposed (MinP) that retains similar binding properties but possesses an attractive biotechnological potential derived from its reduced size. The MinP tag was further validated by analyzing the functionality and stability of the fusion proteins MinP-β-galactosidase and MinP-CueO from Escherichia coliIMPORTANCE Polyhydroxyalkanoates (PHAs) are biocompatible, nontoxic, and biodegradable biopolymers with exceptional applications in the industrial and medical fields. The complex structure of the PHA granule can be exploited as a toolbox to display molecules of interest on their surface. Phasins, the most abundant group of proteins on the granule, have been employed as anchoring tags to obtain functionalized PHA beads for high-affinity bioseparation, enzyme immobilization, diagnostics, or cell targeting. Here, a shorter module based on the previously designed BioF tag has been demonstrated to maintain the affinity for the PHA granule, with higher stability and similar functionalization efficiency. The use of a 67% shorter peptide, which maintains the binding properties of the entire protein, constitutes an advantage for the immobilization of recombinant proteins on the PHA surface both in vitro and in vivo.
Collapse
Affiliation(s)
- Aranzazu Mato
- Polymer Biotechnology Group, Microbial and Plant Biotechnology Department, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - Francisco G Blanco
- Polymer Biotechnology Group, Microbial and Plant Biotechnology Department, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| | - Beatriz Maestro
- Host-Parasite Interplay in Pneumococcal Infection Group, Microbial and Plant Biotechnology Department, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
| | - Jesús M Sanz
- Host-Parasite Interplay in Pneumococcal Infection Group, Microbial and Plant Biotechnology Department, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Madrid, Spain
| | - Jesús Pérez-Gil
- Biochemical and Molecular Biology Department, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Madrid, Spain
| | - M Auxiliadora Prieto
- Polymer Biotechnology Group, Microbial and Plant Biotechnology Department, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy-Spanish National Research Council (SusPlast-CSIC), Madrid, Spain
| |
Collapse
|
4
|
Wong JX, Ogura K, Chen S, Rehm BHA. Bioengineered Polyhydroxyalkanoates as Immobilized Enzyme Scaffolds for Industrial Applications. Front Bioeng Biotechnol 2020; 8:156. [PMID: 32195237 PMCID: PMC7064635 DOI: 10.3389/fbioe.2020.00156] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/14/2020] [Indexed: 12/11/2022] Open
Abstract
Enzymes function as biocatalysts and are extensively exploited in industrial applications. Immobilization of enzymes using support materials has been shown to improve enzyme properties, including stability and functionality in extreme conditions and recyclability in biocatalytic processing. This review focuses on the recent advances utilizing the design space of in vivo self-assembled polyhydroxyalkanoate (PHA) particles as biocatalyst immobilization scaffolds. Self-assembly of biologically active enzyme-coated PHA particles is a one-step in vivo production process, which avoids the costly and laborious in vitro chemical cross-linking of purified enzymes to separately produced support materials. The homogeneous orientation of enzymes densely coating PHA particles enhances the accessibility of catalytic sites, improving enzyme function. The PHA particle technology has been developed into a remarkable scaffolding platform for the design of cost-effective designer biocatalysts amenable toward robust industrial bioprocessing. In this review, the PHA particle technology will be compared to other biological supramolecular assembly-based technologies suitable for in vivo enzyme immobilization. Recent progress in the fabrication of biological particulate scaffolds using enzymes of industrial interest will be summarized. Additionally, we outline innovative approaches to overcome limitations of in vivo assembled PHA particles to enable fine-tuned immobilization of multiple enzymes to enhance performance in multi-step cascade reactions, such as those used in continuous flow bioprocessing.
Collapse
Affiliation(s)
- Jin Xiang Wong
- School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
- MacDiarmid Institute of Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington, New Zealand
| | - Kampachiro Ogura
- School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Shuxiong Chen
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, Australia
| | - Bernd H. A. Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, Australia
- Menzies Health Institute Queensland (MHIQ), Griffith University, Gold Coast Campus, Southport, QLD, Australia
| |
Collapse
|
5
|
Wong JX, Gonzalez-Miro M, Sutherland-Smith AJ, Rehm BHA. Covalent Functionalization of Bioengineered Polyhydroxyalkanoate Spheres Directed by Specific Protein-Protein Interactions. Front Bioeng Biotechnol 2020; 8:44. [PMID: 32117925 PMCID: PMC7015861 DOI: 10.3389/fbioe.2020.00044] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/21/2020] [Indexed: 12/21/2022] Open
Abstract
Bioengineered polyhydroxyalkanoate (PHA) spheres assembled in engineered bacteria are showing promising potential in protein immobilization for high-value applications. Here, we have designed innovative streamlined approaches to add functional proteins from complex mixtures (e.g., without prior purification) to bioengineered PHA spheres directly harnessing the specificity of the SpyTag/SpyCatcher mediated protein ligation. Escherichia coli was engineered to assemble PHA spheres displaying the SpyCatcher domain while simultaneously producing a SpyTagged target protein, which was in vivo specifically ligated to the PHA spheres. To further demonstrate the specificity of this ligation reaction, we incubated isolated SpyCatcher-coated PHA spheres with cell lysates containing SpyTagged target protein, which also resulted in specific ligation mediating surface functionalization. An even cruder approach was used by lysing a mixture of cells, either producing PHA spheres or target protein, which resulted in specific surface functionalization suggesting that ligation between the SpyCatcher-coated PHA spheres and the SpyTagged target proteins is highly specific. To expand the design space of this general modular approach toward programmable multifunctionalization, e.g., one-pot construction of immobilized multienzyme cascade systems on PHA spheres, we designed various recombinant bimodular PHA spheres utilizing alternative Tag/Catcher pairs (e.g., SnoopTag/SnoopCatcher and SdyTag/SdyCatcher systems). One of our bimodular PHA spheres resulted in simultaneous multifunctionalization of plain PHA spheres in one-step with two differently tagged proteins under in vitro and ex vivo reaction conditions while remaining functional. Our bimodular PHA spheres also showed high orthogonality with the non-target peptide tag and exhibited decent robustness against repeated freeze-thaw treatment. We demonstrated the utility of these approaches by using a fluorescent protein, a monomeric amylase, and a dimeric organophosphate hydrolase as target proteins. We established a versatile toolbox for dynamic functionalization of PHA spheres for biomedical and industrial applications.
Collapse
Affiliation(s)
- Jin Xiang Wong
- School of Fundamental Sciences, Massey University, Palmerston North, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington, New Zealand
| | | | | | - Bernd H. A. Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD, Australia
| |
Collapse
|
6
|
Grage K, McDermott P, Rehm BHA. Engineering Bacillus megaterium for production of functional intracellular materials. Microb Cell Fact 2017; 16:211. [PMID: 29166918 PMCID: PMC5700737 DOI: 10.1186/s12934-017-0823-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/13/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Over the last 10-15 years, a technology has been developed to engineer bacterial poly(3-hydroxybutyrate) (PHB) inclusions as functionalized beads, for applications such as vaccines, diagnostics and enzyme immobilization. This has been achieved by translational fusion of foreign proteins to the PHB synthase (PhaC). The respective fusion protein mediates self-assembly of PHB inclusions displaying the desired protein function. So far, beads have mainly been produced in recombinant Escherichia coli, which is problematic for some applications as the lipopolysaccharides (LPS) co-purified with such inclusions are toxic to humans and animals. RESULTS In this study, we have bioengineered the formation of functional PHB inclusions in the Gram-positive bacterium Bacillus megaterium, an LPS-free and established industrial production host. As B. megaterium is a natural PHB producer, the PHB-negative strain PHA05 was used to avoid any background PHB production. Plasmid-mediated T7 promoter-driven expression of the genes encoding β-ketothiolase (phaA), acetoacetyl-CoA-reductase (phaB) and PHB synthase (phaC) enabled PHB production in B. megaterium PHA05. To produce functionalized PHB inclusions, the N- and C-terminus of PhaC was fused to four and two IgG binding Z-domains from Staphylococcus aureus, respectively. The ZZ-domain PhaC fusion protein was strongly overproduced at the surface of the PHB inclusions and the corresponding isolated ZZ-domain displaying PHB beads were found to purify IgG with a binding capacity of 40-50 mg IgG/g beads. As B. megaterium has the ability to sporulate and respective endospores could co-purify with cellular inclusions, a sporulation negative production strain was generated by disrupting the spoIIE gene in PHA05. This strain did not produce spores when tested under sporulation inducing conditions and it was still able to synthesize ZZ-domain displaying PHB beads. CONCLUSIONS This study provides proof of concept for the successful genetic engineering of B. megaterium as a host for the production of functionalized PHB beads. Disruption of the spoIIE gene rendered B. megaterium incapable of sporulation but particularly suitable for production of functionalized PHB beads. This sporulation-negative mutant represents an improved industrial production strain for biotechnological processes otherwise impaired by the possibility of endospore formation.
Collapse
Affiliation(s)
- Katrin Grage
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North, 4442, New Zealand
| | - Paul McDermott
- Bioline Reagents Ltd., Unit 16, The Edge Business Centre, Humber Road, London, NW2 6EW, UK
| | - Bernd H A Rehm
- Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Don Young Road, Nathan, QLD, Australia.
| |
Collapse
|
7
|
Purification of therapeutic proteins mediated by in vivo polyester immobilized sortase. Biotechnol Lett 2017; 40:369-373. [DOI: 10.1007/s10529-017-2473-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
|
8
|
Du J, Rehm BHA. Purification of target proteins from intracellular inclusions mediated by intein cleavable polyhydroxyalkanoate synthase fusions. Microb Cell Fact 2017; 16:184. [PMID: 29096637 PMCID: PMC5667439 DOI: 10.1186/s12934-017-0799-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 10/24/2017] [Indexed: 11/12/2022] Open
Abstract
Background Recombinant protein production and purification from Escherichia coli is often accompanied with expensive and complicated procedures, especially for therapeutic proteins. Here it was demonstrated that, by using an intein cleavable polyhydroxyalkanoate synthase fusion, recombinant proteins can be first produced and sequestered on a natural resin, the polyhydroxyalkanoate (PHA) inclusions, then separated from contaminating host proteins via simple PHA bead isolation steps, and finally purified by specific release into the soluble fraction induced by a pH reduction. Results By translationally fusing a target protein to PHA synthase using a self-cleaving intein as linker, intracellular production of PHA beads was achieved. Upon isolation of respective PHA beads the soluble pure target protein was released by a simple pH shift to 6. The utility of this approach was exemplified by producing six target proteins, including Aequorea victoria green fluorescent protein (GFP), Mycobacterium tuberculosis vaccine candidate Rv1626, the immunoglobulin G (IgG) binding ZZ domain of protein A derived from Staphylococcus aureus, human tumor necrosis factor alpha (TNFα), human granulocyte colony-stimulating factor (G-CSF), and human interferon alpha 2b (IFNα2b). Conclusions Here a new method for production and purification of a tag-less protein was developed through intein cleavable polyhydroxyalkanoate synthase fusion. Pure target protein could be easily obtained without laborious downstream processing. Electronic supplementary material The online version of this article (10.1186/s12934-017-0799-1) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jinping Du
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | - Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand. .,Centre for Cell Factories and Biopolymers, Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia.
| |
Collapse
|
9
|
Rehm BHA. Bioengineering towards self-assembly of particulate vaccines. Curr Opin Biotechnol 2017; 48:42-53. [PMID: 28365472 DOI: 10.1016/j.copbio.2017.03.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/20/2017] [Accepted: 03/15/2017] [Indexed: 02/07/2023]
Abstract
There is an unmet demand for safe and efficient vaccines for prevention of various infectious diseases. Subunit vaccines comprise selected pathogen specific antigens are a safe alternative to whole organism vaccines. However they often lack immunogenicity. Natural and synthetic self-assembling polymers and proteins will be reviewed in view their use to encapsulate and/or display antigens to serve as immunogenic antigen carriers for induction of protective immunity. Recent advances made in in vivo assembly of antigen-displaying polyester inclusions will be a focus. Particulate vaccines are inherently immunogenic due to enhanced uptake by antigen presenting cells which process antigens mediating adaptive immune responses. Bioengineering approaches enable the design of tailor-made particulate vaccines to fine tune immune responses towards protective immunity.
Collapse
Affiliation(s)
- Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
| |
Collapse
|
10
|
Lee SY. Applications of Microbial Biopolymers in Display Technology. CONSEQUENCES OF MICROBIAL INTERACTIONS WITH HYDROCARBONS, OILS, AND LIPIDS: PRODUCTION OF FUELS AND CHEMICALS 2017. [PMCID: PMC7123360 DOI: 10.1007/978-3-319-50436-0_377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Microorganisms produce a variety of different polymers such as polyamides, polysaccharides, and polyesters. The polyesters, the polyhydroxyalkanoates (PHAs), are the most extensively studied polymers in regard to their use in display technology. The material properties of bacterial PHAs in combination with their biocompatibility and biodegradability make them attractive substrates for use in display technology applications. By translationally fusing bioactive molecules to a gene encoding a PHA-binding domain, the appropriate functionalization for a given application can be achieved such that the need for chemical immobilization is circumvented. By separately extracting and processing the biopolymer, using it to coat a surface, and then treating this surface with the fusion proteins, surface functionalization for immunodiagnostic microarray or tissue engineering applications can be accomplished. Conversely, by expressing the fusion protein directly in the PHA-producing organisms, one-step production of functionalized beads can be achieved. Such beads have been demonstrated in diverse applications, including fluorescence-activated cell sorting, enzyme-linked immunosorbent assays, microarrays, diagnostic skin test for tuberculosis, vaccines, protein purification, and affinity bioseparation.
Collapse
Affiliation(s)
- Sang Yup Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea (Republic of)
| |
Collapse
|
11
|
Rehm FBH, Chen S, Rehm BHA. Enzyme Engineering for In Situ Immobilization. Molecules 2016; 21:E1370. [PMID: 27754434 PMCID: PMC6273058 DOI: 10.3390/molecules21101370] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/05/2016] [Accepted: 10/05/2016] [Indexed: 11/19/2022] Open
Abstract
Enzymes are used as biocatalysts in a vast range of industrial applications. Immobilization of enzymes to solid supports or their self-assembly into insoluble particles enhances their applicability by strongly improving properties such as stability in changing environments, re-usability and applicability in continuous biocatalytic processes. The possibility of co-immobilizing various functionally related enzymes involved in multistep synthesis, conversion or degradation reactions enables the design of multifunctional biocatalyst with enhanced performance compared to their soluble counterparts. This review provides a brief overview of up-to-date in vitro immobilization strategies while focusing on recent advances in enzyme engineering towards in situ self-assembly into insoluble particles. In situ self-assembly approaches include the bioengineering of bacteria to abundantly form enzymatically active inclusion bodies such as enzyme inclusions or enzyme-coated polyhydroxyalkanoate granules. These one-step production strategies for immobilized enzymes avoid prefabrication of the carrier as well as chemical cross-linking or attachment to a support material while the controlled oriented display strongly enhances the fraction of accessible catalytic sites and hence functional enzymes.
Collapse
Affiliation(s)
- Fabian B H Rehm
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand.
| | - Shuxiong Chen
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand.
| | - Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand.
| |
Collapse
|
12
|
Parlane NA, Gupta SK, Rubio-Reyes P, Chen S, Gonzalez-Miro M, Wedlock DN, Rehm BHA. Self-Assembled Protein-Coated Polyhydroxyalkanoate Beads: Properties and Biomedical Applications. ACS Biomater Sci Eng 2016; 3:3043-3057. [PMID: 33445349 DOI: 10.1021/acsbiomaterials.6b00355] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Polyhydroxyalkanoates (PHAs) are biological polyesters that can be naturally produced by a range of bacteria as water-insoluble inclusions composed of a PHA core coated with PHA synthesis, structural, and regulatory proteins. These naturally self-assembling shell-core particles have been recently conceived as biomaterials that can be bioengineered as biologically active beads for medical applications. Protein engineering of PHA-associated proteins enabled the production of PHA-protein assemblies exhibiting biologically active protein-based functions relevant for applications as vaccines or diagnostics. Here we provide an overview of the recent advances in bioengineering of PHA particles toward the display of biomedically relevant protein functions such as selected disease-specific antigens as diagnostic tools or for the design of particulate subunit vaccines against infectious diseases such as tuberculosis, meningitis, pneumonia, and hepatitis C.
Collapse
Affiliation(s)
- Natalie A Parlane
- AgResearch, Hopkirk Research Institute, Palmerston North 4442, New Zealand
| | - Sandeep K Gupta
- AgResearch, Hopkirk Research Institute, Palmerston North 4442, New Zealand
| | - Patricia Rubio-Reyes
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Shuxiong Chen
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - Majela Gonzalez-Miro
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
| | - D Neil Wedlock
- AgResearch, Hopkirk Research Institute, Palmerston North 4442, New Zealand
| | - Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand.,MacDiarmid Institute for Advanced Materials and Nanotechnology, Kelburn Parade, Wellington 6140, New Zealand
| |
Collapse
|
13
|
Ren G, Ke N, Berkmen M. Use of the SHuffle Strains in Production of Proteins. ACTA ACUST UNITED AC 2016; 85:5.26.1-5.26.21. [PMID: 27479507 DOI: 10.1002/cpps.11] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Escherichia coli continues to be a popular expression host for the production of proteins, yet successful recombinant expression of active proteins to high yields remains a trial and error process. This is mainly due to decoupling of the folding factors of a protein from its native host, when expressed recombinantly in E. coli. Failure to fold could be due to many reasons but is often due to lack of post-translational modifications that are absent in E. coli. One such post-translational modification is the formation of disulfide bonds, a common feature of secreted proteins. The genetically engineered SHuffle cells offer an expression solution to proteins that require disulfide bonds for their folding and activity. The purpose of this protocol unit is to familiarize the researcher with the biology of SHuffle cells and guide the experimental design in order to optimize and increase the chances of successful expression of their desired protein of choice. Example of the expression and purification of a model disulfide-bonded protein DsbC is described in detail. © 2016 by John Wiley & Sons, Inc.
Collapse
Affiliation(s)
| | - Na Ke
- New England Biolabs, Ipswich, Massachusetts
| | | |
Collapse
|
14
|
Hay ID, Du J, Reyes PR, Rehm BHA. In vivo polyester immobilized sortase for tagless protein purification. Microb Cell Fact 2015; 14:190. [PMID: 26608345 PMCID: PMC4658790 DOI: 10.1186/s12934-015-0385-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 11/17/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Laboratory scale recombinant protein production and purification techniques are often complicated, involving multiple chromatography steps and specialized equipment and reagents. Here it was demonstrated that recombinant proteins can be expressed as covalently immobilized to the surface of polyester (polyhydroxyalkanoate, PHA) beads in vivo in Escherichia coli by genetically fusing them to a polyester synthase gene (phaC). The insertion of a self-cleaving module, a modified sortase A (SrtA) from Staphylococcus aureus and its five amino acid recognition sequence between the synthase and the target protein led to a simple protein production and purification method. RESULTS The generation of hybrid genes encoding tripartite PhaC-SrtA-Target fusion proteins, enabled immobilization of proteins of interest to the surface of PHA beads in vivo. After simple cell lysis and isolation of the PHA beads, the target proteins could be selectively and efficiently released form the beads by activating the sortase with CaCl2 and triglycine. Up to 6 mg/l of soluble proteins at a purity of ~98 % could be isolated in one step with no optimization. This process was used to produce and isolate three proteins: Green fluorescent protein, maltose binding protein and the Mycobacterium tuberculosis vaccine candidate Rv1626. CONCLUSIONS We have developed a new technique for easy production and purification of recombinant proteins. This technique is capable of producing and purifying high yields of proteins suitable for research application in less than 2 days. No costly or specialized protein chromatography equipment, resins, reagents or expertise are required.
Collapse
Affiliation(s)
- Iain D Hay
- Department of Microbiology, Monash University, Clayton, 3800, Australia. .,Polybatics Ltd., Palmerston North, New Zealand.
| | - Jinping Du
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
| | - Patricia Rubio Reyes
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand.
| | - Bernd H A Rehm
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand. .,MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington, New Zealand. .,Polybatics Ltd., Palmerston North, New Zealand.
| |
Collapse
|
15
|
Use of Bacterial Polyhydroxyalkanoates in Protein Display Technologies. SPRINGER PROTOCOLS HANDBOOKS 2014. [DOI: 10.1007/8623_2014_34] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
|