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Sakono M, Nakamura M, Ohshima T, Miyakoshi A, Arai R, Minamihata K, Kamiya N. One-pot synthesis of fibrillar-shaped functional nanomaterial using microbial transglutaminase. J Biosci Bioeng 2023; 135:440-446. [PMID: 37088672 DOI: 10.1016/j.jbiosc.2023.03.015] [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: 06/16/2022] [Revised: 03/29/2023] [Accepted: 03/29/2023] [Indexed: 04/25/2023]
Abstract
Recently, functional nanowire production using amyloids as a scaffold for protein immobilization has attracted attention. However, protein immobilization on amyloid fibrils often caused protein inactivation. In this study, we investigated protein immobilization using enzymatic peptide ligation to suppress protein inactivation during immobilization. We attempted to immobilize functional molecules such as green fluorescent protein (GFP) and Nanoluc to a transthyretin (TTR) amyloid using microbial transglutaminase (MTG), which links the glutamine side chain to the primary amine. Linkage between amyloid fibrils and functional molecules was achieved through the MTG substrate sequence, and the functional molecules-loaded nanowires were successfully fabricated. We also found that the synthetic process from amyloidization to functional molecules immobilization could be achieved in a single-step procedure.All rights reserved.
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Affiliation(s)
- Masafumi Sakono
- Department of Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan.
| | - Mitsuki Nakamura
- Department of Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Tatsuki Ohshima
- Department of Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Ayano Miyakoshi
- Department of Applied Chemistry, Faculty of Engineering, University of Toyama, 3190 Gofuku, Toyama, Toyama 930-8555, Japan
| | - Ryoichi Arai
- Department of Biomolecular Innovation, Institute for Biomedical Sciences, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, Ueda, Nagano 386-8567, Japan; Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University, Ueda, Nagano 386-8567, Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan
| | - Noriho Kamiya
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Fukuoka 819-0395, Japan; Division of Biotechnology, Center for Future Chemistry, Kyushu University, 744 Mootoka, Nishi-Ku, Fukuoka 819-0395, Japan
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Polymer Particles Bearing Recombinant LEL CD81 as Trapping Systems for Hepatitis C Virus. Pharmaceutics 2021; 13:pharmaceutics13050672. [PMID: 34067169 PMCID: PMC8151308 DOI: 10.3390/pharmaceutics13050672] [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: 04/14/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 12/23/2022] Open
Abstract
Hepatitis C is one of the most common social diseases in the world. The improvements in both the early diagnostics of the hepatitis C and the treatment of acute viremia caused by hepatitis C virus are undoubtedly an urgent task. In present work, we offered the micro- and nanotraps for the capturing of HCV. As a capturing moiety, we designed and synthesized in E. coli a fusion protein consisting of large extracellular loop of CD81 receptor and streptavidin as spacing part. The obtained protein has been immobilized on the surface of PLA-based micro- and nanoparticles. The developed trapping systems were characterized in terms of their physico-chemical properties. In order to illustrate the ability of developed micro- and nanotraps to bind HCV, E2 core protein of HCV was synthesized as a fusion protein with GFP. Interaction of E2 protein and hepatitis C virus-mimicking particles with the developed trapping systems were testified by several methods.
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Towards the Development of a 3-D Biochip for the Detection of Hepatitis C Virus. SENSORS 2020; 20:s20092719. [PMID: 32397590 PMCID: PMC7249126 DOI: 10.3390/s20092719] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/06/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Abstract
The early diagnostics of hepatitis C virus (HCV) infections is currently one of the most highly demanded medical tasks. This study is devoted to the development of biochips (microarrays) that can be applied for the detection of HCV. The analytical platforms of suggested devices were based on macroporous poly(glycidyl methacrylate-co-di(ethylene glycol) dimethacrylate) monolithic material. The biochips were obtained by the covalent immobilization of specific probes spotted onto the surface of macroporous monolithic platforms. Using the developed biochips, different variants of bioassay were investigated. This study was carried out using hepatitis C virus-mimetic particles (VMPs) representing polymer nanoparticles with a size close to HCV and bearing surface virus antigen (E2 protein). At the first step, the main parameters of bioassay were optimized. Additionally, the dissociation constants were calculated for the pairs “ligand–receptor” and “antigen–antibody” formed at the surface of biochips. As a result of this study, the analysis of VMPs in model buffer solution and human blood plasma was carried out in a format of direct and “sandwich” approaches. It was found that bioassay efficacy appeared to be similar for both the model medium and real biological fluid. Finally, limit of detection (LOD), limit of quantification (LOQ), spot-to-spot and biochip-to-biochip reproducibility for the developed systems were evaluated.
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Antimonova OI, Lebedev DV, Zabrodskaya YA, Grudinina NA, Timkovsky AL, Ramsay E, Shavlovsky MM, Egorov VV. Changing times: Fluorescence-lifetime analysis of amyloidogenic SF-IAPP fusion protein. J Struct Biol 2019; 205:78-83. [DOI: 10.1016/j.jsb.2018.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 11/02/2018] [Accepted: 11/16/2018] [Indexed: 12/30/2022]
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Ohshima T, Sakono M. Enzymatic Installation of Functional Molecules on Amyloid-Based Polymers. Bioconjug Chem 2017; 28:2687-2691. [PMID: 29068665 DOI: 10.1021/acs.bioconjchem.7b00479] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We produced a functional polymer whose framework comprised transthyretin (TTR) amyloid fibrils. In order to immobilize functional molecules onto the amyloid fibrils, transpeptidase sortase A (srtA), which catalyzes the covalent binding of LPXTG with polyglycine, was employed. After the preparation of the amyloid fibril of LPETGG-tagged TTR, immobilization of Gly5-fused GFP on the amyloid fibrils by srtA-mediated transpeptidation was carried out. SrtA recognized the amyloid fibrils consisting of an LPETGG-tagged TTR variant (L55P) as a good substrate, resulting in successful preparation of a GFP-immobilized amyloid. Intriguingly, the replacement of GFP with Gly5-fused luciferase was confirmed when the GFP-immobilized amyloids were mixed with Gly5-luciferase in the presence of srtA. Thus, it was found that functional molecules covalently immobilized on amyloid could be detached and substituted with other tagged molecules by using srtA.
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Affiliation(s)
- Tatsuki Ohshima
- Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama , 3190 Gofuku, Toyama 930-8555, Japan
| | - Masafumi Sakono
- Department of Applied Chemistry, Graduate School of Science and Engineering, University of Toyama , 3190 Gofuku, Toyama 930-8555, Japan
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Antimonova OI, Grudinina NA, Egorov VV, Polyakov DS, Il’in VV, Shavlovskii MM. Interaction of the dye Congo red with fibrils of lysozyme, beta2-microglobulin, and transthyretin. ACTA ACUST UNITED AC 2016. [DOI: 10.1134/s1990519x1606002x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Polyakov DS, Sakhabeyev RG, Shavlovsky MM. Partial denaturation of recombinant protein for affinity purification. APPL BIOCHEM MICRO+ 2016. [DOI: 10.1134/s0003683816010105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu M, Wang C, Li D, Liu Y, Sheng Q, Lv Z, Yu W, Wang D, Zhang Y, Nie Z. Cloning and expression characteristics of the notch-associated gene BmE(spl)mγ from silkworm, Bombyx mori. Appl Biochem Biotechnol 2014; 173:2065-75. [PMID: 24916802 DOI: 10.1007/s12010-014-1003-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 05/26/2014] [Indexed: 10/25/2022]
Abstract
The E(spl)mγ gene in Drosophila is a regulatory target gene downstream of the Notch pathway. BmE(spl)mγ (Bombyx mori, E(spl)mγ) is an ortholog of the Drosophila E(spl)mγ gene, and the gene encodes a protein with 248 amino acid residues. This gene was cloned and overexpressed in Escherichia coli BL21(DE3). The recombinant protein was purified and subsequently used to generate a rabbit polyclonal antibody. Western blotting analyses showed that BmE(spl)mγ expression is high in pupa and egg, and low in larva and moth. In the fifth instar larva, the protein levels are high in head, epidermis, sexual gland, trachea, and the fatbody and low in the Malpighian tubule, hemolymph, gut, and silk gland. The further immunohistochemical analyses also showed higher BmE(spl)mγ expression in the head of fifth instar larva and pupa. Of the four moth parts studied, the thorax had the highest expression level. Thus, BmE(spl)mγ might be associated with neurogenesis in silkworm. Furthermore, DAPT (a γ-secretase inhibitor and an indirect inhibitor of Notch) blocking experiments showed that higher concentrations of the blocking agent and a longer processing time reduce the transcription levels of the BmE(spl)mγ gene, demonstrating that the silkworm BmE(spl)mγ gene is associated with the Notch signal pathway. These findings suggest that the function of BmE(spl)mγ may be similar to that of its Drosophila homolog.
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Affiliation(s)
- Min Liu
- College of Life Sciences, Zhejiang Sci-Tech University, Hanghzou, 310018, China
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Xu JZ, Zhang JL, Guo YF, Jia QD, Zhang WG. HETEROLOGOUS EXPRESSION OFEscherichia coliFRUCTOSE-1,6-BISPHOSPHATASE INCorynebacterium glutamicumAND EVALUATING THE EFFECT ON CELL GROWTH AND L-LYSINE PRODUCTION. Prep Biochem Biotechnol 2014; 44:493-509. [DOI: 10.1080/10826068.2013.833115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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