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Chaitanyakumar A, Somu P, Srinivasan R. Expression and Immobilization of Tannase for Tannery Effluent Treatment from Lactobacillus plantarum and Staphylococcus lugdunensis: A Comparative Study. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04861-2. [PMID: 38421571 DOI: 10.1007/s12010-024-04861-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2024] [Indexed: 03/02/2024]
Abstract
Agro-industrial discharges have higher concentrations of tannins and have been a significant cause of pollution to water bodies and soil surrounding the agro-industries. So in this study, toxic tannic acid is into commercially valuable gallic acid from the tannery effluent using immobilized microbial tannase. Tannase genes were isolated from Lactobacillus plantarum JCM 1149 (tanLpl) and Staphylococcus lugdunensis MTCC 3614 (tanA). Further, these isolated tannese genes were cloned and expressed in BL 21 host using pET 28a as an expression vector, and immobilized in sodium alginate beads. Vegetable tannery effluent was treated by tannase-immobilized beads at 25 °C and 37 °C, where liberated gallic acid was analyzed using TLC and NMR to confirm the tannin reduction. Further, both immobilized tannases exhibited excellent reusability up to 15 cycles of regeneration without significant reduction in their activity. Moreover, we also showed that immobilized tannases tanLpl and tanA activity remained unaffected compared to the free enzyme in the presence of metal ions. Further, tanA activity remained unaffected over a wide range of pH, and tanLpl showed high thermal stability. Thus, immobilized tannase tanLpl and tanA provide a possible solution for tannery effluent treatment depending upon industry requirements and reaction composition/effluent composition, one can choose a better-immobilized tannase among the two as per the need-based requirement.
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Affiliation(s)
- Amballa Chaitanyakumar
- Department of Biotechnology, University Institute of Engineering and Technology, Guru Nanak University, Ibrahimpatnam, 501510, Telangana, India.
- Department of Biotechnology, School of Bio-Sciences and Technology, Vellore Institute of Technology, 632 014, Tamil Nadu, Vellore, India.
| | - Prathap Somu
- Department of Biotechnology and Chemical Engineering, School of Civil and Chemical Engineering, Manipal University Jaipur, Dehmi Kalan, Jaipur, 303007, India.
| | - Ramachandran Srinivasan
- Centre for Ocean Research, Sathyabama Research Park, Sathyabama Institute of Science and Technology, Chennai, 600119, Tamil Nadu, India
- Department of Biotechnology, School of Bio-Sciences and Technology, Vellore Institute of Technology, 632 014, Tamil Nadu, Vellore, India
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Gao R, Kou X, Tong L, Li ZW, Shen Y, He R, Guo L, Wang H, Ma X, Huang S, Chen G, Ouyang G. Ionic Liquid-Mediated Dynamic Polymerization for Facile Aqueous-Phase Synthesis of Enzyme-Covalent Organic Framework Biocatalysts. Angew Chem Int Ed Engl 2024; 63:e202319876. [PMID: 38183367 DOI: 10.1002/anie.202319876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/08/2024]
Abstract
Utilizing covalent organic framework (COF) as a hypotoxic and porous scaffold to encapsulate enzyme (enzyme@COF) has inspired numerous interests at the intersection of chemistry, materials, and biological science. In this study, we report a convenient scheme for one-step, aqueous-phase synthesis of highly crystalline enzyme@COF biocatalysts. This facile approach relies on an ionic liquid (2 μL of imidazolium ionic liquid)-mediated dynamic polymerization mechanism, which can facilitate the in situ assembly of enzyme@COF under mild conditions. This green strategy is adaptive to synthesize different biocatalysts with highly crystalline COF "exoskeleton", as well evidenced by the low-dose cryo-EM and other characterizations. Attributing to the rigorous sieving effect of crystalline COF pore, the hosted lipase shows non-native selectivity for aliphatic acid hydrolysis. In addition, the highly crystalline linkage affords COF "exoskeleton" with higher photocatalytic activity for in situ production of H2 O2 , enabling us to construct a self-cascading photo-enzyme coupled reactor for pollutants degradation, with a 2.63-fold degradation rate as the poorly crystalline photo-enzyme reactor. This work showcases the great potentials of employing green and trace amounts of ionic liquid for one-step synthesis of crystalline enzyme@COF biocatalysts, and emphasizes the feasibility of diversifying enzyme functions by integrating the reticular chemistry of a COF.
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Affiliation(s)
- Rui Gao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xiaoxue Kou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Linjing Tong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhi-Wei Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yujian Shen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Rongwei He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Lihong Guo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Hao Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Xiaomin Ma
- Cryo-EM Center, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Siming Huang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the, NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, China
| | - Guosheng Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gangfeng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
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Xu W, Wu Y, Xu Y, Cai X, Gu W, Zhu C. Metal-Organic Framework-Based Artificial Organelle Corrects Microenvironment Interference for Accurate Intratumoral Glucose Analysis. Angew Chem Int Ed Engl 2023; 62:e202308827. [PMID: 37802975 DOI: 10.1002/anie.202308827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/29/2023] [Accepted: 10/06/2023] [Indexed: 10/08/2023]
Abstract
Enzymatic catalysis with high efficiency allows them a great prospect in metabolite monitoring in living cells. However, complex tumor microenvironments, such as acidity, H2 O2 , and hypoxia, are bound to disturb catalytic reactions for misleading results. Here, we report a spatially compartmentalized artificial organelle to correct intratumoral glucose analysis, where the zeolitic imidazolate framework-8 immobilized glucose oxidase-horseradish peroxidase cascade core and catalase-directed shell act as signal transduction and guarding rooms respectively. The acid-digested core and stable shell provide appropriate spaces to boost biocatalytic efficiency with good tolerability. Notably, the endogenous H2 O2 is in situ decomposed to O2 by catalase, which not only overcomes the interference in signal output but also alleviates the hypoxic states to maximize glucose oxidation. The marked protective effect and biocompatibility render artificial organelles to correct the signal transduction for dynamic monitoring glucose in vitro and in vivo, achieving our goal of accurate intratumoral metabolite analysis.
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Affiliation(s)
- Weiqing Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Yu Wu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Yuling Xu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Xiaoli Cai
- Department of Nutrition, Hygiene and Toxicology, School of Public Health, Medical College, Wuhan University of Science and Technology, 430065, Wuhan, P. R. China
| | - Wenling Gu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
| | - Chengzhou Zhu
- National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, 430079, Wuhan, P. R. China
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Xing C, Mei P, Mu Z, Li B, Feng X, Zhang Y, Wang B. Enhancing Enzyme Activity by the Modulation of Covalent Interactions in the Confined Channels of Covalent Organic Frameworks. Angew Chem Int Ed Engl 2022; 61:e202201378. [PMID: 35267241 DOI: 10.1002/anie.202201378] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Indexed: 01/03/2023]
Abstract
Controllable regulations on the enzyme conformation to optimize catalytic performance are highly desired for the immobilized biocatalysts yet remain challenging. Covalent organic frameworks (COFs) possess confined channels with finely tunable pore environment, offering a promising platform for enzyme encapsulation. Herein, we covalently immobilized the cytochrome c (Cyt c) in the size-matched channels of COFs with different contents of anchoring site, and significant enhancement of the stability and activity (≈600 % relative activity compared with free enzyme) can be realized by optimizing the covalent interactions. Structural analyses on the immobilized Cyt c suggest that covalent bonding could induce conformational perturbation resulting in more accessible active sites. The effectiveness of the covalent interaction modulation together with the tailorable confined channels of COFs offers promise to develop high-performance biocatalysts.
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Affiliation(s)
- Chunyan Xing
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Pei Mei
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Zhenjie Mu
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Bixiao Li
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Xiao Feng
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yuanyuan Zhang
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Bo Wang
- Frontiers Science Center for High Energy Material, Advanced Technology Research Institute (Jinan), Key Laboratory of Cluster Science (Ministry of Education), Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Advanced Research Institute of Multidisciplinary Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
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Khan S, Babadaei MMN, Hasan A, Edis Z, Attar F, Siddique R, Bai Q, Sharifi M, Falahati M. Enzyme-polymeric/inorganic metal oxide/hybrid nanoparticle bio-conjugates in the development of therapeutic and biosensing platforms. J Adv Res 2021; 33:227-239. [PMID: 34603792 PMCID: PMC8463903 DOI: 10.1016/j.jare.2021.01.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 01/02/2021] [Accepted: 01/22/2021] [Indexed: 12/23/2022] Open
Abstract
Background Because enzymes can control several metabolic pathways and regulate the production of free radicals, their simultaneous use with nanoplatforms showing protective and combinational properties is of great interest in the development of therapeutic nano-based platforms. However, enzyme immobilization on nanomaterials is not straightforward due to the toxic and unpredictable properties of nanoparticles in medical practice. Aim of review In fact, because of the ability to load enzymes on nano-based supports and increase their renewability, scientific groups have been tempted to create potential therapeutic enzymes in this field. Therefore, this study not only pays attention to the therapeutic and diagnostic applications of diseases by enzyme-nanoparticle (NP) bio-conjugate (abbreviated as: ENB), but also considers the importance of nanoplatforms used based on their toxicity, ease of application and lack of significant adverse effects on loaded enzymes. In the following, based on the published reports, we explained that the immobilization of enzymes on polymers, inorganic metal oxide and hybrid compounds provide hopes for potential use of ENBs in medical activities. Then, the use of ENBs in bioassay activities such as paper-based or wearing biosensors and lab-on-chip/microfluidic biosensors were evaluated. Finally, this review addresses the current challenges and future perspective of ENBs in biomedical applications. Key scientific concepts of review This literature may provide useful information regarding the application of ENBs in biosensing and therapeutic platforms.
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Affiliation(s)
- Suliman Khan
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mohammad Mahdi Nejadi Babadaei
- Department of Molecular Genetics, Faculty of Biological Science, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar
- Biomedical Research Centre, Qatar University, Doha 2713, Qatar
| | - Zehra Edis
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
- Center of Medical and Bio-allied Health Sciences Research, Ajman University, PO Box 346, Ajman, United Arab Emirates
| | - Farnoosh Attar
- Department of Food Toxicology, Research Center of Food Technology and Agricultural Products, Standard Research Institute (SRI), Karaj, Iran
| | - Rabeea Siddique
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qian Bai
- Department of Anesthesiology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Majid Sharifi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
- Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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Gallo-Cordova A, Ovejero JG, Pablo-Sainz-Ezquerra AM, Cuya J, Jeyadevan B, Veintemillas-Verdaguer S, Tartaj P, Morales MDP. Unravelling an amine-regulated crystallization crossover to prove single/multicore effects on the biomedical and environmental catalytic activity of magnetic iron oxide colloids. J Colloid Interface Sci 2021; 608:1585-97. [PMID: 34742075 DOI: 10.1016/j.jcis.2021.10.111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/20/2021] [Accepted: 10/18/2021] [Indexed: 11/23/2022]
Abstract
Elucidation of reaction mechanisms in forming nanostructures is relevant to obtain robust and affordable protocols that can lead to materials with enhanced properties and good reproducibility. Here, the formation of magnetic iron oxide monocrystalline nanoflowers in polyol solvents using N-methyldiethanolamine (NMDEA) as co-solvent has been shown to occur through a non-classical crystallization pathway. This pathway involves intermediate mesocrystals that, in addition, can be transformed into large single colloidal nanocrystals. Interestingly, the crossover of a non-classical crystallization pathway to a classical crystallization pathway can be induced by merely changing the NMDEA concentration. The key is the stability of a green rust-like intermediate complex that modulates the nucleation rate and growth of magnetite nanocrystals. The crossover separates two crystallization domains (classical and non-classical) and three basic configurations (mesocrystals, large and small colloidal nanocrystals). The above finding facilitated the synthesis of magnetic materials with different configurations to suit various engineering applications. Consequently, the effect of the single and multicore configurations of magnetic iron oxide on the biomedical (magnetic hyperthermia and enzyme immobilization) and catalytic activity (Fenton-like reactions and photo-Fenton-like processes driven by visible light irradiation) has been experimentally demonstrated.
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Isanapong J, Pornwongthong P. Immobilized laccase on zinc oxide nanoarray for catalytic degradation of tertiary butyl alcohol. J Hazard Mater 2021; 411:125104. [PMID: 33482503 DOI: 10.1016/j.jhazmat.2021.125104] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Laccase is an effective biocatalyst in bioremediation process; however, the application of the enzyme is limited due to its cost, recovery, and stability. In this study, we developed, characterized and evaluated the efficiency of immobilized laccase on zinc oxide nanostructure to catalyze biodegradation of TBA in comparison to the suspended enzyme. The results showed that both immobilized and suspended laccase were capable of catalyzing TBA biodegradation; however, the efficiency of the immobilized laccase on TBA removal was higher than that of the suspended enzyme. The repeatability testing revealed the potential of the immobilized laccase for repeatedly catalyzing TBA biodegradation with storage capacity. While the Vmax of immobilized enzyme was higher than suspended laccase (2.25 ± 0.542 mg TBA/h∙U vs. 1.47 ± 0.185 mg TBA/h∙U), the km of the immobilized enzyme was higher than the suspended laccase (67.9 ± 20.5 mg TBA/L vs. 33.5 ± 7.10 mg TBA/L). This suggests that the immobilized laccase is better in TBA removal, but has lower affinity with TBA than the suspended enzyme. Thus, immobilization of the enzyme can be applied to increase the efficiency and minimize the use of laccase for TBA remediation.
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Affiliation(s)
- Jantiya Isanapong
- Department of Agro-Industrial, Food and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok Thailand
| | - Peerapong Pornwongthong
- Department of Agro-Industrial, Food and Environmental Technology, Faculty of Applied Science, King Mongkut's University of Technology North Bangkok, Bangkok Thailand.
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Arco JD, Pérez E, Naitow H, Matsuura Y, Kunishima N, Fernández-Lucas J. Structural and functional characterization of thermostable biocatalysts for the synthesis of 6-aminopurine nucleoside-5'-monophospate analogues. Bioresour Technol 2019; 276:244-252. [PMID: 30640018 DOI: 10.1016/j.biortech.2018.12.120] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/26/2018] [Accepted: 12/29/2018] [Indexed: 06/09/2023]
Abstract
The present work describes the functional and structural characterization of adenine phosphoribosyltransferase 2 from Thermus thermophilus HB8 (TtAPRT2). The combination of structural and substrate specificity data provided valuable information for immobilization studies. Dimeric TtAPRT2 was immobilized onto glutaraldehyde-activated MagReSyn®Amine magnetic iron oxide porous microparticles by two different strategies: a) an enzyme immobilization at pH 8.5 to encourage the immobilization process by N-termini (MTtAPRT2A, MTtAPRT2B, MTtAPRT2C) or b) an enzyme immobilization at pH 10.0 to encourage the immobilization process through surface exposed lysine residues (MTtAPRT2D, MTtAPRT2E, MTtAPRT2F). According to catalyst load experiments, MTtAPRT2B (activity: 480 IU g-1biocatalyst, activity recovery: 52%) and MTtAPRT2F (activity: 507 IU g-1biocatalyst, activity recovery: 44%) were chosen as optimal derivatives. The biochemical characterization studies demonstrated that immobilization process improved the thermostability of TtAPRT2. Moreover, the potential reusability of MTtAPRT2B and MTtAPRT2F was also tested. Finally, MTtAPRT2F was employed in the synthesis of nucleoside-5'-monophosphate analogues.
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Affiliation(s)
- Jon Del Arco
- Applied Biotechnology Group, Biomedical Science School, Universidad Europea de Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670, Villaviciosa de Odón, Spain
| | - Elena Pérez
- Applied Biotechnology Group, Biomedical Science School, Universidad Europea de Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670, Villaviciosa de Odón, Spain
| | - Hisashi Naitow
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Yoshinori Matsuura
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Naoki Kunishima
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan
| | - Jesús Fernández-Lucas
- Applied Biotechnology Group, Biomedical Science School, Universidad Europea de Madrid, Urbanización El Bosque, Calle Tajo, s/n, 28670, Villaviciosa de Odón, Spain; Grupo de Investigación en Desarrollo Agroindustrial Sostenible, Universidad de la Costa, CUC, Calle 58 # 55 - 66, Barranquilla, Colombia.
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Biswas P, Karn AK, Balasubramanian P, Kale PG. Biosensor for detection of dissolved chromium in potable water: A review. Biosens Bioelectron 2017; 94:589-604. [PMID: 28364706 DOI: 10.1016/j.bios.2017.03.043] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Revised: 03/10/2017] [Accepted: 03/20/2017] [Indexed: 12/18/2022]
Abstract
The unprecedented deterioration rate of the environmental quality due to rapid urbanization and industrialization causes a severe global health concern to both ecosystem and humanity. Heavy metals are ubiquitous in nature and being used extensively in industrial processes, the exposure to excessive levels could alter the biochemical cycles of living systems. Hence the environmental monitoring through rapid and specific detection of heavy metal contamination in potable water is of paramount importance. Various standard analytical techniques and sensors are used for the detection of heavy metals include spectroscopy and chromatographic methods along with electrochemical, optical waveguide and polymer based sensors. However, the mentioned techniques lack the point of care application as it demands huge capital cost as well as the attention of expert personnel for sample preparation and operation. Recent advancements in the synergetic interaction among biotechnology and microelectronics have advocated the biosensor technology for a wide array of applications due to its characteristic features of sensitivity and selectivity. This review paper has outlined the overview of chromium toxicity, conventional analytical techniques along with a particular emphasis on electrochemical based biosensors for chromium detection in potable water. This article emphasized porous silicon as a host material for enzyme immobilization and elaborated the working principle, mechanism, kinetics of an enzyme-based biosensor for chromium detection. The significant characteristics such as pore size, thickness, and porosity make the porous silicon suitable for enzyme entrapment. Further, several schemes on porous silicon-based immobilized enzyme biosensors for the detection of chromium in potable water are proposed.
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Affiliation(s)
- Puja Biswas
- Department of Electrical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India; Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India.
| | - Abhinav Kumar Karn
- Department of Electrical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India.
| | - P Balasubramanian
- Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India.
| | - Paresh G Kale
- Department of Electrical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, India.
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Talebi M, Vaezifar S, Jafary F, Fazilati M, Motamedi S. Stability Improvement of Immobilized α-amylase using Nano Pore Zeolite. Iran J Biotechnol 2016; 14:33-38. [PMID: 28959315 DOI: 10.15171/ijb.1261] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Enzyme engineering by immobilization techniques has proven to be well compatible with the other chemical or biological approaches aiming to improve enzyme's functions and stability. Zeolites are porous alumino-silicates with a wide range of porosity and particle size along with the other remarkable properties such as high surface area, high stability against a wide range temperatures, pHs, as well as organic solvents. OBJECTIVES Nano-zeolites are a class of advanced materials that have special properties that has made them ideal candidate for a wide range of applications. MATERIALS AND METHODS In this study, a nano-zeolite which has been synthesized and characterized in our previous work, was used to immobilize α-amylase and activated with glutaraldehyde as a bi-functional agent to improve enzyme properties. RESULTS Studies have shown an increased stability of the immobilized enzyme compared to the free enzyme against a range of temperature change and pHs as well. Also the stability of the immobilized enzyme was increased with respect to storage. The calculated binding efficiency shows that the immobilized α-amylase conserved 58.44 % of its native activity. CONCLUSIONS Using nano pore zeolite for covalent attachment of the α-amylase resulted in an increased resistance of this enzyme against denaturation. The immobilized enzyme demonstrated higher stability compared to the free enzyme at higher temperatures and pH variations. Immobilization also caused an increase in the enzyme stability during storage.
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Affiliation(s)
- Maedeh Talebi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Sedigheh Vaezifar
- Department of Medical Engineering, Payame Noor University, Tehran, Iran
| | - Fariba Jafary
- Young Researchers and Elite Club, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Mohamad Fazilati
- Department of Biochemistry, Payame Noor University, Isfahan, Iran
| | - Shima Motamedi
- School of Veterinary Medicine, Razi University, Kermanshah, Iran
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Magalhães L, de Oliveira AHC, de Souza Vasconcellos R, Mariotini-Moura C, de Cássia Firmino R, Fietto JLR, Cardoso CL. Label-free assay based on immobilized capillary enzyme reactor of Leishmania infantum nucleoside triphosphate diphosphohydrolase (LicNTPDase-2-ICER-LC/UV). J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1008:98-107. [PMID: 26638034 DOI: 10.1016/j.jchromb.2015.11.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 11/11/2015] [Accepted: 11/17/2015] [Indexed: 10/22/2022]
Abstract
Nucleoside triphosphate diphosphohydrolase (NTPDase) is an enzyme belonging to the apyrase family that participates in the hydrolysis of the nucleosides di- and triphosphate to the corresponding nucleoside monophosphate. This enzyme underlies the virulence of parasites such as Leishmania. Recently, an NTPDase from Leishmania infantum (LicNTPDase-2) was cloned and expressed and has been considered as a new drug target for the treatment of leishmaniasis. With the intent of developing label-free online screening methodologies, LicNTPDase-2 was covalently immobilized onto a fused silica capillary tube in the present study to create an immobilized capillary enzyme reactor (ICER) based on LicNTPDase-2 (LicNTPDase-2-ICER). To perform the activity assays, a multidimensional chromatographic method was developed employing the LicNTPDase-2-ICER in the first dimension, and an analytical Ascentis C8 column was used in the second dimension to provide analytical separation of the substrates and products. The validated LicNTPDase-2-ICER method provided the following kinetic parameters of the immobilized enzyme: KM of 2.2 and 1.8mmolL(-1) for the ADP and ATP substrates, respectively. Suramin (1mmolL(-1)) was also shown to inhibit 32.9% of the enzymatic activity. The developed method is applicable to kinetic studies and enables the recognition of the ligands. Furthermore, a comparison of the values of LicNTPDase-2-ICER with those obtained with an LC method using free enzyme in solution showed that LicNTPDase-2-ICER-LC/UV was an accurate and reproducible method that enabled automated measurements for the rapid screening of ligands.
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Affiliation(s)
- Luana Magalhães
- Departamento de Química-Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto-Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil
| | | | - Raphael de Souza Vasconcellos
- Departamento de Bioquímica e Biologia Molecular-Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil; Instituto Nacional de Biotecnologia Estrutural e Química Medicinal em Doenças Infecciosas (INBEQMeDI), São Carlos, São Paulo, Brazil
| | - Christiane Mariotini-Moura
- Departamento de Bioquímica e Biologia Molecular-Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil; Instituto Nacional de Biotecnologia Estrutural e Química Medicinal em Doenças Infecciosas (INBEQMeDI), São Carlos, São Paulo, Brazil
| | - Rafaela de Cássia Firmino
- Departamento de Bioquímica e Biologia Molecular-Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil
| | - Juliana Lopes Rangel Fietto
- Departamento de Bioquímica e Biologia Molecular-Universidade Federal de Viçosa, 36570-000 Viçosa, MG, Brazil; Instituto Nacional de Biotecnologia Estrutural e Química Medicinal em Doenças Infecciosas (INBEQMeDI), São Carlos, São Paulo, Brazil
| | - Carmen Lúcia Cardoso
- Departamento de Química-Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto-Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil.
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