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Rahman MU, Ullah MW, Shah JA, Sethupathy S, Bilal H, Abdikakharovich SA, Khan AU, Khan KA, Elboughdiri N, Zhu D. Harnessing the power of bacterial laccases for xenobiotic degradation in water: A 10-year overview. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 918:170498. [PMID: 38307266 DOI: 10.1016/j.scitotenv.2024.170498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 11/10/2023] [Accepted: 01/25/2024] [Indexed: 02/04/2024]
Abstract
Industrialization and population growth are leading to the production of significant amounts of sewage containing hazardous xenobiotic compounds. These compounds pose a threat to human and animal health, as well as the overall ecosystem. To combat this issue, chemical, physical, and biological techniques have been used to remove these contaminants from water bodies affected by human activity. Biotechnological methods have proven effective in utilizing microorganisms and enzymes, particularly laccases, to address this problem. Laccases possess versatile enzymatic characteristics and have shown promise in degrading different xenobiotic compounds found in municipal, industrial, and medical wastewater. Both free enzymes and crude enzyme extracts have demonstrated success in the biotransformation of these compounds. Despite these advancements, the widespread use of laccases for bioremediation and wastewater treatment faces challenges due to the complex composition, high salt concentration, and extreme pH often present in contaminated media. These factors negatively impact protein stability, recovery, and recycling processes, hindering their large-scale application. These issues can be addressed by focusing on large-scale production, resolving operation problems, and utilizing cutting-edge genetic and protein engineering techniques. Additionally, finding novel sources of laccases, understanding their biochemical properties, enhancing their catalytic activity and thermostability, and improving their production processes are crucial steps towards overcoming these limitations. By doing so, enzyme-based biological degradation processes can be improved, resulting in more efficient removal of xenobiotics from water systems. This review summarizes the latest research on bacterial laccases over the past decade. It covers the advancements in identifying their structures, characterizing their biochemical properties, exploring their modes of action, and discovering their potential applications in the biotransformation and bioremediation of xenobiotic pollutants commonly present in water sources.
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Affiliation(s)
- Mujeeb Ur Rahman
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Muhammad Wajid Ullah
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Junaid Ali Shah
- College of Life Sciences, Jilin University, Changchun 130012, PR China; Fergana Medical Institute of Public Health Uzbekistan, Fergana 150110, Uzbekistan
| | - Sivasamy Sethupathy
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China
| | - Hazart Bilal
- Department of Dermatology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, PR China
| | | | - Afaq Ullah Khan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Khalid Ali Khan
- Applied College, Mahala Campus and the Unit of Bee Research and Honey Production/Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Noureddine Elboughdiri
- Chemical Engineering Department, College of Engineering, University of Ha'il, Ha'il 81441, Saudi Arabia; Chemical Engineering Process Department, National School of Engineers Gabes, University of Gabes, Gabes 6029, Tunisia
| | - Daochen Zhu
- Biofuels Institute, School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, PR China.
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Zhang L, Zheng H, Zhang X, Chen X, Liu Y, Tang Y, Zhang W, Wang Z, Zhao L, Guo Y. Effective Degradation of Free Gossypol in Defatted Cottonseed Meal by Bacterial Laccases: Performance and Toxicity Analysis. Foods 2024; 13:566. [PMID: 38397543 PMCID: PMC10888038 DOI: 10.3390/foods13040566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/05/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Cottonseed meal (CSM) is the major by-product of the cottonseed oil extraction process with high protein content. However, the presence of free gossypol (FG) in CSM severely restricts its utilization in the food and animal feed industries. The development of a biological strategy for the effective removal of FG in CSM has become an urgent need. In this study, three bacterial laccases including CotA from Bacillus licheniformis, CueO from Escherichia coli, and LcLac from Loigolactobacillus coryniformis were heterologously expressed and investigated for their FG degradation ability. The results showed that CotA laccase displayed the highest FG-degrading capacity among the three laccases, achieving 100% FG degradation at 37 °C and pH 7.0 in 1 h without the addition of a redox mediator. Moreover, in vitro and in vivo studies confirmed that the hepatotoxicity of FG was effectively eliminated after oxidative degradation by CotA laccase. Furthermore, the addition of CotA laccase could achieve 87% to 98% FG degradation in defatted CSM within 2 h. In conclusion, CotA laccase can be developed as an effective biocatalyst for the detoxification of FG in CSM.
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Affiliation(s)
- Liangyu Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Hao Zheng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Xingke Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Xiaoxue Chen
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Yanrong Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (Y.L.); (Y.T.); (L.Z.)
| | - Yu Tang
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (Y.L.); (Y.T.); (L.Z.)
| | - Wei Zhang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Zhixiang Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
| | - Lihong Zhao
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; (Y.L.); (Y.T.); (L.Z.)
| | - Yongpeng Guo
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (H.Z.); (X.Z.); (X.C.); (W.Z.); (Z.W.)
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Durão P, Kis P, Chelo IM, Ventura MR, Martins LO. Environmentally Friendly Degradation and Detoxification of Rifampicin by a Bacterial Laccase and Hydrogen Peroxide. Chembiochem 2024; 25:e202300627. [PMID: 37947295 DOI: 10.1002/cbic.202300627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/12/2023]
Abstract
Antibiotics are micropollutants accumulating in our rivers and wastewaters, potentially leading to bacterial antibiotic resistance, a worldwide problem to which there is no current solution. Here, we have developed an environmentally friendly two-step process to transform the antibiotic rifampicin (RIF) into non-antimicrobial compounds. The process involves an enzymatic oxidation step by the bacterial CotA-laccase and a hydrogen peroxide bleaching step. NMR identified rifampicin quinone as the main product of the enzymatic oxidation. Growth of Escherichia coli strains in the presence of final degradation products (FP) and minimum inhibitory concentration (MIC) measurements confirmed that FP are non-anti-microbial compounds, and bioassays suggest that FP is not toxic to eukaryotic organisms. Moreover, competitive fitness assays between susceptible and RIF-resistant bacteria show that susceptible bacteria is strongly favoured in the presence of FP. Our results show that we have developed a robust and environmentally friendly process to effectively remediate rifampicin from antibiotic contaminated environments.
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Affiliation(s)
- Paulo Durão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Peter Kis
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Ivo M Chelo
- cE3c - Centre for Ecology, Evolution and Environmental Changes & CHANGE - Global Change and Sustainability Institute, 1749-016, Lisboa, Portugal
- Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal
| | - M Rita Ventura
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
| | - Lígia O Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av da República, 2780-157, Oeiras, Portugal
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Singh G, Kumar S, Afreen S, Bhalla A, Khurana J, Chandel S, Aggarwal A, Arya SK. Laccase mediated delignification of wasted and non-food agricultural biomass: Recent developments and challenges. Int J Biol Macromol 2023; 235:123840. [PMID: 36849073 DOI: 10.1016/j.ijbiomac.2023.123840] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 02/27/2023]
Abstract
Utilization of microbial laccases is considered as the cleaner and target specific biocatalytic mechanism for the recovery of cellulose and hemicelluloses from nonfood and wasted agricultural, lignocellulosic biomass (LCB). The extent of lignin removal by laccase depends on the biochemical composition of biomass and the redox potential (E0) of the biocatalyst. Intensive research efforts are going on all over the world for the recognition of appropriate and easily available agricultural lignocellulosic feedstocks to exploit maximally for the production of value-added bioproducts and biofuels. In such circumstances, laccase can play a major role as a leading biocatalyst and potent substitute for chemical based deconstruction of the lignocellulosic materials. The limited commercialization of laccase at an industrial scale has been feasible due to its full working efficiency mostly expressed in the presence of cost intensive redox mediators only. Although, recently there are some reports that came on the mediator free biocatalysis of enzyme but still not considerably explored and neither understood in depth. The present review will address the various research gaps and shortcomings that acted as the big hurdles before the complete exploitation of laccases at an industrial scale. Further, this article also reveals insights on different microbial laccases and their diverse functional environmental conditions that affect the deconstruction process of LCB.
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Affiliation(s)
- Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara 144411, Punjab, India.
| | - Shiv Kumar
- Department of Microbiology, Guru Gobind Singh Medical College and Hospital, Baba Farid University of Health Sciences, Faridkot 151203, Punjab, India
| | - Sumbul Afreen
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology-Delhi, New Delhi, India
| | - Aditya Bhalla
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, USA
| | - Jyoti Khurana
- Biotechnology Department, Arka Jain University, Jamshedpur, Jharkhand, India
| | - Sanjeev Chandel
- GHG College of Pharmacy, Raikot Road, Ludhiana, -141109, India
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Renfeld ZV, Chernykh AM, Egorova Shebanova AD, Baskunov BP, Gaidina AS, Myasoedova NM, Moiseeva OV, Kolomytseva MP. The Laccase of Myrothecium roridum VKM F-3565: A New Look at Fungal Laccase Tolerance to Neutral and Alkaline Conditions. Chembiochem 2023; 24:e202200600. [PMID: 36513608 DOI: 10.1002/cbic.202200600] [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: 10/19/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022]
Abstract
Most of the currently known fungal laccases show their maximum activity under acidic environmental conditions. It is known that a decrease in the activity of a typical laccase at neutral or alkaline pH values is the result of an increase in the binding of the hydroxide anion to the T2/T3 copper center, which prevents the transfer of an electron from the T1 Cu to the trinuclear copper center. However, evolutionary pressure has resolved the existing limitations in the catalytic mechanism of laccase, allowing such enzymes to be functionally active under neutral/alkaline pH conditions, thereby giving fungi an advantage for their survival. Combined molecular and biochemical studies, homological modeling, calculation of the electrostatic potential on the Connolly surface at pH 5.0 and 7.0, and structural analysis of the novel alkaliphilic laccase of Myrothecium roridum VKM F-3565 and alkaliphilic and acidophilic fungal laccases with a known structure allowed a new intramolecular channel near the one of the catalytic aspartate residues at T2-copper atom to be found. The amino acid residues of alkaliphilic laccases forming this channel can presumably serve as proton donors for catalytic aspartates under neutral conditions, thus ensuring proper functioning. For the first time for ascomycetous laccases, the production of new trimeric products of phenylpropanoid condensation under neutral conditions has been shown, which could have a potential for use in pharmacology.
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Affiliation(s)
- Zhanna V Renfeld
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Alexey M Chernykh
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Anna D Egorova Shebanova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Boris P Baskunov
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Anastasya S Gaidina
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Nina M Myasoedova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Olga V Moiseeva
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
| | - Marina P Kolomytseva
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Pushchino Center for Biological Research, Russian Academy of Sciences, Prosp. Nauki 5, Pushchino, Moscow Region, 142290, Russian Federation
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Sutaoney P, Pandya S, Gajarlwar D, Joshi V, Ghosh P. Feasibility and potential of laccase-based enzyme in wastewater treatment through sustainable approach: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:86499-86527. [PMID: 35771325 DOI: 10.1007/s11356-022-21565-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/14/2022] [Indexed: 06/15/2023]
Abstract
The worldwide increase in metropolitan cities and rise in industrialization have resulted in the assimilation of hazardous pollutants into the ecosystems. Different physical, chemical and biological techniques have been employed to remove these toxins from water bodies. Several bioprocess applications using microbes and their enzymes are utilized to achieve the goal. Biocatalysts, such as laccases, are employed explicitly to deplete a variety of organic pollutants. However, the degradation of contaminants using biocatalysts has many disadvantages concerning the stability and activity of the enzyme. Hence, they are immobilized on different supports to improve the enzyme kinetics and recyclability. Furthermore, standard wastewater treatment methods are not effective in eliminating all the contaminants. As a result, membrane separation technologies have emerged to overcome the limitations of traditional wastewater treatment methods. Moreover, enzymes immobilized onto these membranes have generated new avenues in wastewater purification technology. This review provides the latest information on laccases from diverse sources, their molecular framework and their mode of action. This report also gives information about various immobilization techniques and the application of membrane bioreactors to eliminate and biotransform hazardous contaminants. In a nutshell, laccases appear to be the most promising biocatalysts for green and cost-efficient wastewater treatment technologies.
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Affiliation(s)
- Priya Sutaoney
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Srishti Pandya
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Devashri Gajarlwar
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Veenu Joshi
- Center for Basic Sciences, Pt. Ravishankar Shukla University, Raipur, Chhattisgarh, India
| | - Prabir Ghosh
- Department of Chemical Engineering, NIT Raipur, Raipur, Chhattisgarh, India.
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Farag AM, El-Naggar MY, Ghanem KM. 2,4-Dichlorophenol biotransformation using immobilized marine halophilic Bacillus subtilis culture and laccase enzyme: application in wastewater treatment. J Genet Eng Biotechnol 2022; 20:134. [PMID: 36112327 PMCID: PMC9481827 DOI: 10.1186/s43141-022-00417-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 09/10/2022] [Indexed: 11/30/2022]
Abstract
Background 2,4-Dichlorophenol (2,4-DCP) is a very toxic aromatic compound for humans and the environment and is highly resistant to degradation. Therefore, it is necessary to develop efficient remediation and cost-effective approaches to this pollutant. Microbial enzymes such as laccases can degrade phenols, but limited information is known about immobilized bacterial laccase and their reuse. Methods Immobilization of marine halophilic Bacillus subtilis AAK cultures via entrapment and adsorption techniques and degradation of different phenolic compounds by immobilized cells were estimated. Partial purification and immobilization of laccase enzymes were carried out. In addition, the biodegradation of 2,4-DCP and others contaminated by wastewater was investigated. Results Immobilization of cells and partially purified laccase enzymes by adsorption into 3% alginate increased 2,4-DCP biotransformation compared with free cells and free enzymes. In addition, the reuse of both the immobilized culture and laccase enzymes was evaluated. The highest removal of 2,4-DCP from pulp and paper wastewater samples inoculated by immobilized cells and the immobilized enzyme was 90% and 95%, respectively, at 50 h and 52 h of incubation, compared to free cells and free enzyme. Conclusion The results of this study have revealed the immobilization of a biocatalyst and its laccase enzyme as a promising technique for enhancing the degradation of 2,4-DCP and other toxic phenolic and aromatic compounds. The reuse of the biocatalyst and its laccase enzyme enabled the application of this cost-effective bioremediation strategy. Supplementary Information The online version contains supplementary material available at 10.1186/s43141-022-00417-1.
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Biocatalytic Versatilities and Biotechnological Prospects of Laccase for a Sustainable Industry. Catal Letters 2022. [DOI: 10.1007/s10562-022-04134-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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MWCNTs-CTAB and HFs-Lac Nanocomposite-Modified Glassy Carbon Electrode for Rutin Determination. BIOSENSORS 2022; 12:bios12080632. [PMID: 36005028 PMCID: PMC9405827 DOI: 10.3390/bios12080632] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/26/2022]
Abstract
Rutin is a flavonoid glycoside compound, which is mainly transported via the blood circulation system in the human body. The monitoring of the blood concentration of rutin is of great significance in many fields such as pharmacology and pharmacokinetics. In this work, a biosensor based on multi-walled carbon nanotubes (MWCNTs), cetyltrimethylammonium bromide (CTAB), hydroxyl fullerenes (HFs), and laccase (Lac) nanocomposite-modified glassy carbon electrodes was constructed. The modified materials were characterized with a transmission electron microscope (TEM), cyclic voltammograms (CV), and electrochemical impedance spectroscopy (EIS). CTAB is used to disperse MWCNTs and improve hydrophilicity and biocompatibility of MWCNTs, while the use of Lac can enhance the oxidation of catechol structure in rutin, thus significantly improving the sensitivity and selectivity of the modified electrode. Linear sweep voltammetry (LSV) studies showed that the determination linear ranges of rutin were 0.1 µmol L−1 to 2 µmol L−1 and 2 µmol L−1 to 11 µmol L−1, with the determination limits of 30 nmol L−1 and 95.5 nmol L−1, respectively. The proposed biosensor can be used to detect rutin tablets and serum samples with high recovery, which indicates a good accuracy of this method, and the results are consistent with those measured by the traditional ultra-high performance liquid chromatography (UHPLC) method. Hence, this biosensor has potential practical application value in rutin drug quality testing and clinical blood drug concentration monitoring.
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Kumar A, Singh AK, Bilal M, Chandra R. Extremophilic Ligninolytic Enzymes: Versatile Biocatalytic Tools with Impressive Biotechnological Potential. Catal Letters 2022. [DOI: 10.1007/s10562-021-03800-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jiang Q, Cui Z, Wei R, Nie K, Xu H, Liu L. Feasible Cluster Model Method for Simulating the Redox Potentials of Laccase CueO and Its Variant. Front Bioeng Biotechnol 2022; 10:957694. [PMID: 35935497 PMCID: PMC9354848 DOI: 10.3389/fbioe.2022.957694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/20/2022] [Indexed: 11/23/2022] Open
Abstract
Laccases are regarded as versatile green biocatalysts, and recent scientific research has focused on improving their redox potential for broader industrial and environmental applications. The density functional theory (DFT) quantum mechanics approach, sufficiently rigorous and efficient for the calculation of electronic structures, is conducted to better comprehend the connection between the redox potential and the atomic structural feature of laccases. According to the crystal structure of wild type laccase CueO and its variant, a truncated miniature cluster model method was established in this research. On the basic of thermodynamic cycle, the overall Gibbs free energy variations before and after the one-electron reduction were calculated. It turned out that the trends of redox potentials to increase after variant predicted by the theoretical calculations correlated well with those obtained by experiments, thereby validating the feasibility of this cluster model method for simulating the redox potentials of laccases.
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Affiliation(s)
- Qixuan Jiang
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing, China
| | - Ziheng Cui
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing, China
| | - Ren Wei
- Junior Research Group Plastic Biodegradation at Institute of Biochemistry, University of Greifswald, Greifswald, Germany
| | - Kaili Nie
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing, China
| | - Haijun Xu
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing, China
- *Correspondence: Haijun Xu, ; Luo Liu,
| | - Luo Liu
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing, China
- *Correspondence: Haijun Xu, ; Luo Liu,
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Guo Y, Wang Y, Liu Y, Ma Q, Ji C, Zhao L. Detoxification of the mycoestrogen zearalenone by Bacillus licheniformis spore CotA laccase and application of immobilized laccase in contaminated corn meal. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhong H, Zhou J, Wang F, Wu W, Abdelrahman M, Li X. Whole-Genome Sequencing Reveals Lignin-Degrading Capacity of a Ligninolytic Bacterium (Bacillus cereus) from Buffalo (Bubalus bubalis) Rumen. Genes (Basel) 2022; 13:genes13050842. [PMID: 35627226 PMCID: PMC9140826 DOI: 10.3390/genes13050842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 01/05/2023] Open
Abstract
The buffalo is an amazing ruminant. Its ability to degrade lignin, which has been recently reported, is most likely due to unique rumen microorganisms with lignin-degradation potential. Our goal was to explore the lignin-degradation potential of ruminal microorganisms, in which ligninolytic enzyme encoding genes were involved to provide ideas for revealing the mechanism of lignin degradation by buffalo. In this study, a bacterium strain identified as Bacillus cereus AH7-7 was isolated from the buffalo (Bubalus bubalis) rumen. After whole-genome sequencing, the results demonstrated that B. cereus AH7-7 had laccase, cytochrome P450 and vanillin alcohol oxidase-encoding genes. Sixty-four genes of B. cereus AH7-7 were involved in multiple aromatic metabolic pathways, such as phenylalanine metabolism and aminobenzoate degradation. A positive reaction resulting in guaiacol medium indicated that laccase secretion from B. cereus AH7-7 increased with time. A biodegradation experiment revealed that a significant reduction in kraft lignin content (25.9%) by B. cereus AH7-7 occurred at the end of 6 days of incubation, which confirmed its lignin-degradation capacity. Overall, this is the first report showing that B. cereus AH7-7 from the buffalo rumen can degrade lignin, and revealing the encoding genes of lignin-degrading enzymes from genome level.
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Affiliation(s)
- Huimin Zhong
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan 430070, China; (H.Z.); (J.Z.); (F.W.); (W.W.)
| | - Jiayan Zhou
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan 430070, China; (H.Z.); (J.Z.); (F.W.); (W.W.)
| | - Fan Wang
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan 430070, China; (H.Z.); (J.Z.); (F.W.); (W.W.)
| | - Wenqing Wu
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan 430070, China; (H.Z.); (J.Z.); (F.W.); (W.W.)
| | - Mohamed Abdelrahman
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
- Animal Production Department, Faculty of Agriculture, Assuit University, Asyut 71515, Egypt
| | - Xiang Li
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), Huazhong Agricultural University, Wuhan 430070, China; (H.Z.); (J.Z.); (F.W.); (W.W.)
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
- Shennongjia Science & Technology Innovation Center, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: ; Tel.: +86-18995622055
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14
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Xiong D, Wen J, Lu G, Li T, Long M. Isolation, Purification, and Characterization of a Laccase-Degrading Aflatoxin B1 from Bacillus amyloliquefaciens B10. Toxins (Basel) 2022; 14:toxins14040250. [PMID: 35448859 PMCID: PMC9028405 DOI: 10.3390/toxins14040250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 01/27/2023] Open
Abstract
Aflatoxins, widely found in feed and foodstuffs, are potentially harmful to human and animal health because of their high toxicity. In this study, a strain of Bacillus amyloliquefaciens B10 with a strong ability to degrade aflatoxin B1 (AFB1) was screened; it could degrade 2.5 μg/mL of AFB1 within 96 h. The active substances of Bacillus amyloliquefaciens B10 for the degradation of AFB1 mainly existed in the culture supernatant. A new laccase with AFB1-degrading activity was separated by ammonium sulfate precipitation, diethylaminoethyl (DEAE) and gel filtration chromatography. The results of molecular docking showed that B10 laccase and aflatoxin had a high docking score. The coding sequence of the laccase was successfully amplified from cDNA by PCR and cloned into E. coli. The purified laccase could degrade 79.3% of AFB1 within 36 h. The optimum temperature for AFB1 degradation was 40 °C, and the optimum pH was 6.0–8.0. Notably, Mg2+ and dimethyl sulfoxide (DMSO) could enhance the AFB1-degrading activity of B10 laccase. Mutation of the three key metal combined sites of B10 laccase resulted in the loss of AFB1-degrading activity, indicating that these three metal combined sites of B10 laccase play an essential role in the catalytic degradation of AFB1.
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15
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Lima NSM, Gomes-Pepe ES, Campanharo JC, de Macedo Lemos EG. Broad thermal spectrum metagenomic laccase with action for dye decolorization and fentin hydroxide treatment. AMB Express 2022; 12:38. [PMID: 35322306 PMCID: PMC8943092 DOI: 10.1186/s13568-022-01375-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 03/13/2022] [Indexed: 11/10/2022] Open
Abstract
Laccases are multicopper oxidases that act on various phenolic and non-phenolic compounds, enabling numerous applications including xenobiotic bioremediation, biofuel production, drug development, and cosmetic production, and they can be used as additives in the textile and food industries. This wide range of uses makes these enzymes extremely attractive for novel biotechnology applications. Here, we undertook the kinetic characterization of LacMeta, a predicted as homotrimeric (~ 107,93 kDa) small laccase, and demonstrated that this enzyme performs best at an acidic pH (pH 3–5) towards ABTS as substrate and has a broad thermal spectrum (10–60 °C), which can promote high plastic action potential through dynamic environmental temperature fluctuations. This enzyme showed following kinetic parameters: kcat = 6.377 s−1 ± 0.303, Km = 4.219 mM, and Vmax = 24.43 µM/min (against ABTS as substrate). LacMeta almost completely degraded malachite green (50 mg/mL) in only 2 h. Moreover, the enzyme was able to degrade seven dyes from four distinct classes and it respectively achieved 85% and 83% decolorization of methylene blue and trypan blue with ABTS as the mediator. In addition, LacMeta showed potential for the degradation of two thirds of an agricultural fungicide: fentin hydroxide, thus demonstrating its biotechnological aptitude for bioremediation. The results of this study suggest that LacMeta has potential in textile wastewater treatment and that it could help in the bioremediation of other human/environmental toxins such as pesticides and antibiotic compounds belonging to the same chemical classes as the degraded dyes. LacMeta is a new two-domain laccase with activity over a wide temperature range LacMeta maintained 50% activity after 5 months of storage at 4 °C. Laccase was able to degrade in 2 h the Malachite Green dye, and had the potential to degrade fentin hydroxide
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16
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Eminent Industrial and Biotechnological Applications of Laccases from Bacterial Source: a Current Overview. Appl Biochem Biotechnol 2022; 194:2336-2356. [DOI: 10.1007/s12010-021-03781-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2021] [Indexed: 12/15/2022]
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17
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Brugnari T, Braga DM, Dos Santos CSA, Torres BHC, Modkovski TA, Haminiuk CWI, Maciel GM. Laccases as green and versatile biocatalysts: from lab to enzyme market-an overview. BIORESOUR BIOPROCESS 2021; 8:131. [PMID: 38650295 PMCID: PMC10991308 DOI: 10.1186/s40643-021-00484-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/07/2021] [Indexed: 11/10/2022] Open
Abstract
Laccases are multi-copper oxidase enzymes that catalyze the oxidation of different compounds (phenolics and non-phenolics). The scientific literature on laccases is quite extensive, including many basic and applied research about the structure, functions, mechanism of action and a variety of biotechnological applications of these versatile enzymes. Laccases can be used in various industries/sectors, from the environmental field to the cosmetics industry, including food processing and the textile industry (dyes biodegradation and synthesis). Known as eco-friendly or green enzymes, the application of laccases in biocatalytic processes represents a promising sustainable alternative to conventional methods. Due to the advantages granted by enzyme immobilization, publications on immobilized laccases increased substantially in recent years. Many patents related to the use of laccases are available, however, the real industrial or environmental use of laccases is still challenged by cost-benefit, especially concerning the feasibility of producing this enzyme on a large scale. Although this is a compelling point and the enzyme market is heated, articles on the production and application of laccases usually neglect the economic assessment of the processes. In this review, we present a description of laccases structure and mechanisms of action including the different sources (fungi, bacteria, and plants) for laccases production and tools for laccases evolution and prediction of potential substrates. In addition, we both compare approaches for scaling-up processes with an emphasis on cost reduction and productivity and critically review several immobilization methods for laccases. Following the critical view on production and immobilization, we provide a set of applications for free and immobilized laccases based on articles published within the last five years and patents which may guide future strategies for laccase use and commercialization.
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Affiliation(s)
- Tatiane Brugnari
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil.
| | - Dayane Moreira Braga
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
| | - Camila Souza Almeida Dos Santos
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
| | - Bruno Henrique Czelusniak Torres
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
| | - Tatiani Andressa Modkovski
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
| | - Charles Windson Isidoro Haminiuk
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
| | - Giselle Maria Maciel
- Biotechnology Laboratory, Department of Chemistry and Biology, Graduate Program in Environmental Science and Technology, Federal University of Technology, Paraná, Curitiba, Brazil
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18
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Cheng CM, Patel AK, Singhania RR, Tsai CH, Chen SY, Chen CW, Dong CD. Heterologous expression of bacterial CotA-laccase, characterization and its application for biodegradation of malachite green. BIORESOURCE TECHNOLOGY 2021; 340:125708. [PMID: 34391187 DOI: 10.1016/j.biortech.2021.125708] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Malachite green (MG) is used as fungicide/parasiticide in aquaculture, its persistence is detrimental as it exhibits carcinogenic effects to aquatic organisms. Bacterial laccase evaluated as the best enzyme at extreme condition for aquatic MG removal. Study aims to increase laccase concentration, CotA-laccase from Bacillus subtilis was cloned and overexpressed in Escherichia coli. Optimal catalysis for purified CotA-laccase were at pH 5.0, 60 °C, and 1 mM of (2,2-azino-di-[3-ethylbenzothiazoline-sulphonate-(6)]) with Km and Kcat 0.087 mM and 37.64 S-1 respectively. MG biodegradation by CotA-laccase in clam and tilapia pond wastewaters and cytotoxic effect of biodegraded products in grouper fin-1 cells were determined. MG degradation by CotA-laccase was equally efficient, exhibiting upto 90-94% decolorization at freshwater and saline conditions and treated solution was non-toxic to GF-1 cells. Thus, recombinant-CotA-laccase could be an environmentally-friendly enzyme for aquaculture to remove MG, thereby effective to reduce its accumulation in aquatic organisms and ensuring safe aquaculture products.
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Affiliation(s)
- Chiu-Min Cheng
- Department and Graduate Institute of Aquaculture, National Kaohsiung University of Science and Technology, Taiwan
| | - Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Cheng-Hsian Tsai
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Shen-Yi Chen
- Department of Safety, Health, and Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan
| | - Cheng Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Taiwan.
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Blaschek L, Pesquet E. Phenoloxidases in Plants-How Structural Diversity Enables Functional Specificity. FRONTIERS IN PLANT SCIENCE 2021; 12:754601. [PMID: 34659324 PMCID: PMC8517187 DOI: 10.3389/fpls.2021.754601] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/09/2021] [Indexed: 05/23/2023]
Abstract
The metabolism of polyphenolic polymers is essential to the development and response to environmental changes of organisms from all kingdoms of life, but shows particular diversity in plants. In contrast to other biopolymers, whose polymerisation is catalysed by homologous gene families, polyphenolic metabolism depends on phenoloxidases, a group of heterogeneous oxidases that share little beyond the eponymous common substrate. In this review, we provide an overview of the differences and similarities between phenoloxidases in their protein structure, reaction mechanism, substrate specificity, and functional roles. Using the example of laccases (LACs), we also performed a meta-analysis of enzyme kinetics, a comprehensive phylogenetic analysis and machine-learning based protein structure modelling to link functions, evolution, and structures in this group of phenoloxidases. With these approaches, we generated a framework to explain the reported functional differences between paralogs, while also hinting at the likely diversity of yet undescribed LAC functions. Altogether, this review provides a basis to better understand the functional overlaps and specificities between and within the three major families of phenoloxidases, their evolutionary trajectories, and their importance for plant primary and secondary metabolism.
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Sousa AC, Martins LO, Robalo MP. Laccases: Versatile Biocatalysts for the Synthesis of Heterocyclic Cores. Molecules 2021; 26:3719. [PMID: 34207073 PMCID: PMC8234338 DOI: 10.3390/molecules26123719] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 12/14/2022] Open
Abstract
Laccases are multicopper oxidases that have shown a great potential in various biotechnological and green chemistry processes mainly due to their high relative non-specific oxidation of phenols, arylamines and some inorganic metals, and their high redox potentials that can span from 500 to 800 mV vs. SHE. Other advantages of laccases include the use of readily available oxygen as a second substrate, the formation of water as a side-product and no requirement for cofactors. Importantly, addition of low-molecular-weight redox mediators that act as electron shuttles, promoting the oxidation of complex bulky substrates and/or of higher redox potential than the enzymes themselves, can further expand their substrate scope, in the so-called laccase-mediated systems (LMS). Laccase bioprocesses can be designed for efficiency at both acidic and basic conditions since it is known that fungal and bacterial laccases exhibit distinct optimal pH values for the similar phenolic and aromatic amines. This review covers studies on the synthesis of five- and six-membered ring heterocyclic cores, such as benzimidazoles, benzofurans, benzothiazoles, quinazoline and quinazolinone, phenazine, phenoxazine, phenoxazinone and phenothiazine derivatives. The enzymes used and the reaction protocols are briefly outlined, and the mechanistic pathways described.
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Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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21
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Olmeda I, Casino P, Collins RE, Sendra R, Callejón S, Huesa J, Soares AS, Ferrer S, Pardo I. Structural analysis and biochemical properties of laccase enzymes from two Pediococcus species. Microb Biotechnol 2021; 14:1026-1043. [PMID: 33635570 PMCID: PMC8085982 DOI: 10.1111/1751-7915.13751] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/22/2020] [Accepted: 12/31/2020] [Indexed: 11/29/2022] Open
Abstract
Prokaryotic laccases are emergent biocatalysts. However, they have not been broadly found and characterized in bacterial organisms, especially in lactic acid bacteria. Recently, a prokaryotic laccase from the lactic acid bacterium Pediococcus acidilactici 5930, which can degrade biogenic amines, was discovered. Thus, our study aimed to shed light on laccases from lactic acid bacteria focusing on two Pediococcus laccases, P. acidilactici 5930 and Pediococcus pentosaceus 4816, which have provided valuable information on their biochemical activities on redox mediators and biogenic amines. Both laccases are able to oxidize canonical substrates as ABTS, ferrocyanide and 2,6-DMP, and non-conventional substrates as biogenic amines. With ABTS as a substrate, they prefer an acidic environment and show sigmoidal kinetic activity, and are rather thermostable. Moreover, this study has provided the first structural view of two lactic acid bacteria laccases, revealing new structural features not seen before in other well-studied laccases, but which seem characteristic for this group of bacteria. We believe that understanding the role of laccases in lactic acid bacteria will have an impact on their biotechnological applications and provide a framework for the development of engineered lactic acid bacteria with enhanced properties.
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Affiliation(s)
- Isidoro Olmeda
- ENOLABInstitut de Biotecnologia i Biomedicina (BioTecMed)Universitat de ValènciaValenciaSpain
| | - Patricia Casino
- Departament de Bioquímica i Biologia MolecularUniversitat de ValènciaValenciaSpain
- Institut de Biotecnologia i Biomedicina (BioTecMed)Universitat de ValènciaValenciaSpain
- Group 739 of the Centro de Investigación Biomédica en Red sobre Enfermedades Raras (CIBERER) del Instituto de Salud Carlos IIIValenciaSpain
| | - Robert E. Collins
- Office of Educational ProgramsBrookhaven National LaboratoryUptonNY11973USA
- Department of Chemistry and Physical SciencesQuinnipiac UniversityHamdenCT06518USA
| | - Ramón Sendra
- Departament de Bioquímica i Biologia MolecularUniversitat de ValènciaValenciaSpain
| | - Sara Callejón
- ENOLABInstitut de Biotecnologia i Biomedicina (BioTecMed)Universitat de ValènciaValenciaSpain
- Present address:
ENARTIS Wine TechENARTIS SEPSA S.A.U. PolIndustrial AlcesAvda de los vinos, 18Alcázar de San JuanCiudad Real13600Spain
| | - Juanjo Huesa
- Departament de Bioquímica i Biologia MolecularUniversitat de ValènciaValenciaSpain
| | - Alexei S. Soares
- Photon Sciences DirectorateBrookhaven National LaboratoryUptonNY11973USA
| | - Sergi Ferrer
- ENOLABInstitut de Biotecnologia i Biomedicina (BioTecMed)Universitat de ValènciaValenciaSpain
| | - Isabel Pardo
- ENOLABInstitut de Biotecnologia i Biomedicina (BioTecMed)Universitat de ValènciaValenciaSpain
- Departament de Microbiologia i EcologiaUniversitat de ValènciaValenciaSpain
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22
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Enzymatic characterization, molecular dynamics simulation, and application of a novel Bacillus licheniformis laccase. Int J Biol Macromol 2020; 167:1393-1405. [PMID: 33202275 DOI: 10.1016/j.ijbiomac.2020.11.093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/20/2020] [Accepted: 11/12/2020] [Indexed: 02/01/2023]
Abstract
A new laccase gene from newly isolated Bacillus licheniformis TCCC 111219 was actively expressed in Escherichia coli. This recombinant laccase (rLAC) exhibited a high stability towards a wide pH range and high temperatures. 170% of the initial activity was detected at pH 10.0 after 10-d incubation, and 60% of the initial activity was even kept after 2-h incubation at 70 °C. It indicated that only single type of extreme environment, such as strong alkaline environment (300 K, pH 12) or high temperature (370 K, pH 7), did not show obvious impact on the structural stability of rLAC during molecular dynamics simulation process. But the four loop regions of rLAC where the active site is situated were seriously destroyed when strong alkaline and high temperature environment existed simultaneously (370 K, pH 12) because of the damage of hydrogen bonds and salt bridges. Moreover, this thermo- and alkaline-stable enzyme could efficiently decolorize the structurally differing azo, triphenylmethane, and anthraquinone dyes with appropriate mediator at pH 3.0, 7.0, and 9.0 at 60 °C. These rare characteristics suggested its high potential in industrial applications to decolorize textile dyeing effluent.
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23
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Bu T, Yang R, Zhang Y, Cai Y, Tang Z, Li C, Wu Q, Chen H. Improving decolorization of dyes by laccase from Bacillus licheniformis by random and site-directed mutagenesis. PeerJ 2020; 8:e10267. [PMID: 33240620 PMCID: PMC7666548 DOI: 10.7717/peerj.10267] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/07/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Dye wastewater increases cancer risk in humans. For the treatment of dyestuffs, biodegradation has the advantages of economy, high efficiency, and environmental protection compared with traditional physical and chemical methods. Laccase is the best candidate for dye degradation because of its multiple substrates and pollution-free products. METHODS Here, we modified the laccase gene of Bacillus licheniformis by error-prone PCR and site-directed mutagenesis and expressed in E. coli. The protein was purified by His-tagged protein purification kit. We tested the enzymatic properties of wild type and mutant laccase by single factor test, and further evaluated the decolorization ability of laccase to acid violet, alphazurine A, and methyl orange by spectrophotometry. RESULTS Mutant laccase Lacep69and D500G were superior to wild type laccase in enzyme activity, stability, and decolorization ability. Moreover, the laccase D500G obtained by site-directed mutagenesis had higher enzyme activity in both, and the specific activity of the purified enzyme was as high as 426.13 U/mg. Also, D500G has a higher optimum temperature of 70 °C and temperature stability, while it has a more neutral pH 4.5 and pH stability. D500G had the maximum enzyme activity at a copper ion concentration of 12 mM. The results of decolorization experiments showed that D500G had a strong overall decolorization ability, with a lower decolorization rate of 18% for methyl orange and a higher decolorization rate of 78% for acid violet. CONCLUSION Compared with the wild type laccase, the enzyme activity of D500G was significantly increased. At the same time, it has obvious advantages in the decolorization effect of different dyes. Also, the advantages of temperature and pH stability increase its tolerance to the environment of dye wastewater.
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Affiliation(s)
- Tongliang Bu
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Rui Yang
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - YanJun Zhang
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Yuntao Cai
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Zizhong Tang
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Chenglei Li
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Qi Wu
- College of Life Science, Sichuan Agricultural University, Ya’an, China
| | - Hui Chen
- College of Life Science, Sichuan Agricultural University, Ya’an, China
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24
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Abu ML, Mohammad R, Oslan SN, Salleh AB. The use of response surface methodology for enhanced production of a thermostable bacterial lipase in a novel yeast system. Prep Biochem Biotechnol 2020; 51:350-360. [PMID: 32940138 DOI: 10.1080/10826068.2020.1818256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A thermostable bacterial lipase from Geobacillus zalihae was expressed in a novel yeast Pichia sp. strain SO. The preliminary expression was too low and discourages industrial production. This study sought to investigate the optimum conditions for T1 lipase production in Pichia sp. strain SO. Seven medium conditions were investigated and optimized using Response Surface Methodology (RSM). Five responding conditions namely; temperature, inoculum size, incubation time, culture volume and agitation speed observed through Plackett-Burman Design (PBD) method had a significant effect on T1 lipase production. The medium conditions were optimized using Box-Behnken Design (BBD). Investigations reveal that the optimum conditions for T1 lipase production and Biomass concentration (OD600) were; Temperature 31.76 °C, incubation time 39.33 h, culture volume 132.19 mL, inoculum size 3.64%, and agitation speed of 288.2 rpm with a 95% PI low as; 12.41 U/mL and 95% PI high of 13.65 U/mL with an OD600 of; 95% PI low as; 19.62 and 95% PI high as; 22.62 as generated by the software was also validated. These predicted parameters were investigated experimentally and the experimental result for lipase activity observed was 13.72 U/mL with an OD600 of 24.5. At these optimum conditions, there was a 3-fold increase on T1 lipase activity. This study is the first to develop a statistical model for T1 lipase production and biomass concentration in Pichia sp. Strain SO. The optimized production of T1 lipase presents a choice for its industrial application.
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Affiliation(s)
- Mary Ladidi Abu
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, Selangor, Malaysia.,Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Selangor, Malaysia.,Department of Biochemistry, Faculty of Natural Sciences, Ibrahim Badamasi Babangida University Lapai, Niger State, Nigeria
| | - Rosfarizan Mohammad
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Selangor, Malaysia
| | - Siti Nurbaya Oslan
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, Selangor, Malaysia.,Department of Biochemistry, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Selangor, Malaysia.,Enzyme Technology Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Abu Bakar Salleh
- Enzyme and Microbial Technology Research Centre, Universiti Putra Malaysia, Selangor, Malaysia
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25
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El-Bendary MA, Ezzat SM, Ewais EA, Al-Zalama MA. Optimization of spore laccase production by Bacillus amyloliquefaciens isolated from wastewater and its potential in green biodecolorization of synthetic textile dyes. Prep Biochem Biotechnol 2020; 51:16-27. [DOI: 10.1080/10826068.2020.1786698] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Magda A. El-Bendary
- Microbial Chemistry Department, Genetic Engineering and Biotechnology Research Division, National Research Centre, Giza, Egypt
| | - Safaa M. Ezzat
- Microbiology Department, Central Laboratory for Environmental Quality-Monitoring (CLEQM), National Water Research Center, Cairo, Egypt
| | - Emad A. Ewais
- Microbiology and Botany Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
| | - Mohamed A. Al-Zalama
- Microbiology Department, Central Laboratory for Environmental Quality-Monitoring (CLEQM), National Water Research Center, Cairo, Egypt
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Borges PT, Brissos V, Hernandez G, Masgrau L, Lucas MF, Monza E, Frazão C, Cordeiro TN, Martins LO. Methionine-Rich Loop of Multicopper Oxidase McoA Follows Open-to-Close Transitions with a Role in Enzyme Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01623] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Patrícia T. Borges
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Vânia Brissos
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Guillem Hernandez
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Laura Masgrau
- Zymvol Biomodeling, Carrer Roc Boronat, 117, 08018 Barcelona, Spain
- Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | | | - Emanuele Monza
- Zymvol Biomodeling, Carrer Roc Boronat, 117, 08018 Barcelona, Spain
| | - Carlos Frazão
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Tiago N. Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
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Non-Hydrolyzable Plastics - An Interdisciplinary Look at Plastic Bio-Oxidation. Trends Biotechnol 2020; 39:12-23. [PMID: 32487438 DOI: 10.1016/j.tibtech.2020.05.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 12/15/2022]
Abstract
Enzymatic plastic conversion has emerged recently as a potential adjunct and alternative to conventional plastic waste management technology. Publicity over progress in the enzymatic degradation of polyesters largely neglects that the majority of commercial plastics, including polyethylene, polypropylene, polystyrene and polyvinyl chloride, are still not biodegradable. Details about the mechanisms used by enzymes and an understanding of macromolecular factors influencing these have proved to be vital in developing biodegradation methods for polyesters. To expand the application of enzymatic degradation to other more recalcitrant plastics, extensive knowledge gaps need to be addressed. By drawing on interdisciplinary knowledge, we suggest that physicochemical influences also have a crucial impact on reactions in less well-studied types of plastic, and these need to be investigated in detail.
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Li X, Liu D, Wu Z, Li D, Cai Y, Lu Y, Zhao X, Xue H. Multiple Tolerance and Dye Decolorization Ability of a Novel Laccase Identified from Staphylococcus Haemolyticus. J Microbiol Biotechnol 2020; 30:615-621. [PMID: 31986565 PMCID: PMC9728370 DOI: 10.4014/jmb.1910.10061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Laccases are multicopper oxidases with important industrial value. In the study, a novel laccase gene (mco) in a Staphylococcus haemolyticus isolate is identified and heterologously expressed in Escherichia coli. Mco shares less than 40% of amino acid sequence identities with the other characterized laccases, exhibiting the maximal activity at pH 4.0 and 60°C with 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) as a substrate. Additionally, the Mco is tolerant to a wide range of pH, heavy metal ions and many organic solvents, and it has a high decolorization capability toward textile dyes in the absence of redox mediators. The characteristics of the Mco make this laccase potentially useful for industrial applications such as textile finishing. Based on BLASTN results, mco is found to be widely distributed in both the bacterial genome and bacterial plasmids. Its potential role in oxidative defense ability of staphylococci may contribute to the bacterial colonization and survival.
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Affiliation(s)
- Xingxing Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Dongliang Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Zhaowei Wu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Dan Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Yifei Cai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Yao Lu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - Xin Zhao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China,Department of Animal Science, McGill University, Quebec, Canada
| | - Huping Xue
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China,Corresponding author Phone: +86-29-87080899 Fax: +86-29-87080899 E-mail:
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Multicopper Oxidases in Saccharomyces cerevisiae and Human Pathogenic Fungi. J Fungi (Basel) 2020; 6:jof6020056. [PMID: 32349384 PMCID: PMC7345259 DOI: 10.3390/jof6020056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/20/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022] Open
Abstract
Multicopper oxidases (MCOs) are produced by microscopic and macroscopic fungal species and are involved in various physiological processes such as morphogenesis, lignin degradation, and defense mechanisms to stress inducing environmental conditions as well as fungal virulence. This review will summarize our current understanding regarding the functions of MCOs present in Saccharomyces cerevisiae and in different human fungal pathogens. Of the two main MCO groups, the first group of MCOs is involved in iron homoeostasis and the second includes laccases. This review will also discuss their role in the pathogenesis of human fungal pathogens.
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Guo Y, Qin X, Tang Y, Ma Q, Zhang J, Zhao L. CotA laccase, a novel aflatoxin oxidase from Bacillus licheniformis, transforms aflatoxin B 1 to aflatoxin Q 1 and epi-aflatoxin Q 1. Food Chem 2020; 325:126877. [PMID: 32387986 DOI: 10.1016/j.foodchem.2020.126877] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 03/17/2020] [Accepted: 04/19/2020] [Indexed: 11/26/2022]
Abstract
In the present study, the CotA protein from Bacillus licheniformis ANSB821 was cloned and expressed in Escherichia coli. Apart from the laccase activities, we found that the recombinant CotA could effectively oxidize aflatoxin B1 in the absence of redox mediators. The Km, Kcat and Vmax values of the recombinant CotA towards aflatoxin B1 were 60.62 μM, 0.03 s-1 and 10.08 μg min-1 mg-1, respectively. CotA-mediated aflatoxin B1 degradation products were purified and identified to be aflatoxin Q1 and epi-aflatoxin Q1. The treatment of human liver cells L-02 with aflatoxin Q1 and epi-aflatoxin Q1 did not suppress cell viability and induce apoptosis. Molecular docking simulation revealed that hydrogen bonds and van der Waals interaction played an important role in aflatoxin B1-CotA stability. These findings in the current study are promising for a possible application of CotA as a novel aflatoxin oxidase in degrading AFB1 in food.
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Affiliation(s)
- Yongpeng Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Xiaojuan Qin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Yu Tang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Jianyun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
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Zhu Y, Zhan J, Zhang Y, Lin Y, Yang X. The K428 residue from Thermus thermophilus SG0.5JP17-16 laccase plays the substantial role in substrate binding and oxidation. J Biomol Struct Dyn 2020; 39:1312-1320. [DOI: 10.1080/07391102.2020.1729864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yanyun Zhu
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, People’s Republic Of China
| | - Jiangbo Zhan
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, People’s Republic Of China
| | - Yi Zhang
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, People’s Republic Of China
| | - Ying Lin
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, People’s Republic Of China
| | - Xiaorong Yang
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, Guangzhou, People’s Republic Of China
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Janusz G, Pawlik A, Świderska-Burek U, Polak J, Sulej J, Jarosz-Wilkołazka A, Paszczyński A. Laccase Properties, Physiological Functions, and Evolution. Int J Mol Sci 2020; 21:ijms21030966. [PMID: 32024019 PMCID: PMC7036934 DOI: 10.3390/ijms21030966] [Citation(s) in RCA: 251] [Impact Index Per Article: 62.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 01/29/2020] [Accepted: 01/30/2020] [Indexed: 01/16/2023] Open
Abstract
Discovered in 1883, laccase is one of the first enzymes ever described. Now, after almost 140 years of research, it seems that this copper-containing protein with a number of unique catalytic properties is widely distributed across all kingdoms of life. Laccase belongs to the superfamily of multicopper oxidases (MCOs)—a group of enzymes comprising many proteins with different substrate specificities and diverse biological functions. The presence of cupredoxin-like domains allows all MCOs to reduce oxygen to water without producing harmful byproducts. This review describes structural characteristics and plausible evolution of laccase in different taxonomic groups. The remarkable catalytic abilities and broad substrate specificity of laccases are described in relation to other copper-containing MCOs. Through an exhaustive analysis of laccase roles in different taxa, we find that this enzyme evolved to serve an important, common, and protective function in living systems.
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Affiliation(s)
- Grzegorz Janusz
- Department of Biochemistry and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland; (A.P.); (J.P.); (J.S.); (A.J.-W.)
- Correspondence: ; Tel.: +48-81-537-5521
| | - Anna Pawlik
- Department of Biochemistry and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland; (A.P.); (J.P.); (J.S.); (A.J.-W.)
| | - Urszula Świderska-Burek
- Department of Botany, Mycology and Ecology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland;
| | - Jolanta Polak
- Department of Biochemistry and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland; (A.P.); (J.P.); (J.S.); (A.J.-W.)
| | - Justyna Sulej
- Department of Biochemistry and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland; (A.P.); (J.P.); (J.S.); (A.J.-W.)
| | - Anna Jarosz-Wilkołazka
- Department of Biochemistry and Biotechnology, Maria Curie-Skłodowska University, Akademicka 19 Street, 20-033 Lublin, Poland; (A.P.); (J.P.); (J.S.); (A.J.-W.)
| | - Andrzej Paszczyński
- Professor Emeritus, School of Food Science, University of Idaho, Moscow, ID 83844, USA;
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Valles M, Kamaruddin AF, Wong LS, Blanford CF. Inhibition in multicopper oxidases: a critical review. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00724b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This review critiques the literature on inhibition of O2-reduction catalysis in multicopper oxidases like laccase and bilirubin oxidase and provide recommendations for best practice when carrying out experiments and interpreting published data.
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Affiliation(s)
- Morgane Valles
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Chemistry
| | - Amirah F. Kamaruddin
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Materials
| | - Lu Shin Wong
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Chemistry
| | - Christopher F. Blanford
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Materials
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Li Z, Jiang S, Xie Y, Fang Z, Xiao Y, Fang W, Zhang X. Mechanism of the salt activation of laccase Lac15. Biochem Biophys Res Commun 2020; 521:997-1002. [DOI: 10.1016/j.bbrc.2019.11.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 11/03/2019] [Indexed: 01/08/2023]
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Stanzione I, Pezzella C, Giardina P, Sannia G, Piscitelli A. Beyond natural laccases: extension of their potential applications by protein engineering. Appl Microbiol Biotechnol 2019; 104:915-924. [DOI: 10.1007/s00253-019-10147-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/06/2019] [Accepted: 09/17/2019] [Indexed: 11/28/2022]
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Arregui L, Ayala M, Gómez-Gil X, Gutiérrez-Soto G, Hernández-Luna CE, Herrera de los Santos M, Levin L, Rojo-Domínguez A, Romero-Martínez D, Saparrat MCN, Trujillo-Roldán MA, Valdez-Cruz NA. Laccases: structure, function, and potential application in water bioremediation. Microb Cell Fact 2019; 18:200. [PMID: 31727078 PMCID: PMC6854816 DOI: 10.1186/s12934-019-1248-0] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/31/2019] [Indexed: 11/11/2022] Open
Abstract
The global rise in urbanization and industrial activity has led to the production and incorporation of foreign contaminant molecules into ecosystems, distorting them and impacting human and animal health. Physical, chemical, and biological strategies have been adopted to eliminate these contaminants from water bodies under anthropogenic stress. Biotechnological processes involving microorganisms and enzymes have been used for this purpose; specifically, laccases, which are broad spectrum biocatalysts, have been used to degrade several compounds, such as those that can be found in the effluents from industries and hospitals. Laccases have shown high potential in the biotransformation of diverse pollutants using crude enzyme extracts or free enzymes. However, their application in bioremediation and water treatment at a large scale is limited by the complex composition and high salt concentration and pH values of contaminated media that affect protein stability, recovery and recycling. These issues are also associated with operational problems and the necessity of large-scale production of laccase. Hence, more knowledge on the molecular characteristics of water bodies is required to identify and develop new laccases that can be used under complex conditions and to develop novel strategies and processes to achieve their efficient application in treating contaminated water. Recently, stability, efficiency, separation and reuse issues have been overcome by the immobilization of enzymes and development of novel biocatalytic materials. This review provides recent information on laccases from different sources, their structures and biochemical properties, mechanisms of action, and application in the bioremediation and biotransformation of contaminant molecules in water. Moreover, we discuss a series of improvements that have been attempted for better organic solvent tolerance, thermo-tolerance, and operational stability of laccases, as per process requirements.
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Affiliation(s)
- Leticia Arregui
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe Cuajimalpa, C.P. 05348 Mexico City, Mexico
| | - Marcela Ayala
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001 Chamilpa, 62210 Cuernavaca, Morelos Mexico
| | - Ximena Gómez-Gil
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Guadalupe Gutiérrez-Soto
- Facultad de Agronomía, Universidad Autónoma de Nuevo León, Francisco Villa, 66059 Colonia Ex hacienda El Canadá, General Escobedo, Nuevo León Mexico
| | - Carlos Eduardo Hernández-Luna
- Laboratorio de Enzimología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Pedro de Alba y Manuel L. Barragán, Cd. Universitaria, 66451 San Nicolás de los Garza, Nuevo León Mexico
| | - Mayra Herrera de los Santos
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Laura Levin
- Laboratorio de Micología Experimental, DBBE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INMIBO-CONICET, Ciudad Universitaria, Pabellón 2, Piso 4, C1428BGA Ciudad Autónoma de Buenos Aires, Argentina
| | - Arturo Rojo-Domínguez
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe Cuajimalpa, C.P. 05348 Mexico City, Mexico
| | - Daniel Romero-Martínez
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Mario C. N. Saparrat
- Instituto de Fisiología Vegetal (INFIVE), Universidad Nacional de La Plata (UNLP)-CCT-La Plata-Consejo Nacional de Investigaciones Científicas y técnicas (CONICET), Diag. 113 y 61, 327CC, 1900, La Plata, Argentina
- Instituto de Botánica Spegazzini, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, 53 # 477, 1900, La Plata, Argentina
| | - Mauricio A. Trujillo-Roldán
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Norma A. Valdez-Cruz
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
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Wang J, Yu S, Li X, Feng F, Lu L. High-level expression of Bacillus amyloliquefaciens laccase and construction of its chimeric variant with improved stability by domain substitution. Bioprocess Biosyst Eng 2019; 43:403-411. [DOI: 10.1007/s00449-019-02236-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 10/20/2019] [Indexed: 02/01/2023]
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Behbahani M, Nosrati M, Moradi M, Mohabatkar H. Using Chou's General Pseudo Amino Acid Composition to Classify Laccases from Bacterial and Fungal Sources via Chou's Five-Step Rule. Appl Biochem Biotechnol 2019; 190:1035-1048. [PMID: 31659712 DOI: 10.1007/s12010-019-03141-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 09/12/2019] [Indexed: 01/28/2023]
Abstract
Laccases are a group of enzymes with a critical activity in the degradation process of both phenolic and non-phenolic compounds. These enzymes present in a diverse array of species, including fungi and bacteria. Since this enzyme is in the market for different usages from industry to medicine, having a better knowledge of its structures and properties from diverse sources will be useful to select the most appropriate candidate for different purposes. In the current study, sequence- and structure-based characteristics of these enzymes from fungi and bacteria, including pseudo amino acid composition (PseAAC), physicochemical characteristics, and their secondary structures, are being compared and classified. Autodock 4 software was used for docking analysis between these laccases and some phenolic and non-phenolic compounds. The results indicated that features including molecular weight, aliphatic, extinction coefficient, and random coil percentage of these protein groups present high degrees of diversity in most cases. Categorization of these enzymes by the notion of PseAAC, showed over 96% accuracy. The binding free energy between fungal laccases and their substrates showed to be considerably higher than those of bacterial ones. According to the outcomes of the current study, data mining methods by using different machine learning algorithms, especially neural networks, could provide valuable information for a fair comparison between fungal and bacterial laccases. These results also suggested an association between efficacy and physicochemical features of laccase enzymes from different sources.
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Affiliation(s)
- Mandana Behbahani
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Mokhtar Nosrati
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Mohammad Moradi
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Hassan Mohabatkar
- Department of Biotechnology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
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Wang J, Yu S, Feng F, Lu L. Simultaneous purification and immobilization of laccase on magnetic zeolitic imidazolate frameworks: Recyclable biocatalysts with enhanced stability for dye decolorization. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107285] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Singh G, Arya SK. Utility of laccase in pulp and paper industry: A progressive step towards the green technology. Int J Biol Macromol 2019; 134:1070-1084. [DOI: 10.1016/j.ijbiomac.2019.05.168] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/22/2019] [Accepted: 05/22/2019] [Indexed: 01/31/2023]
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Dandare SU, Young JM, Kelleher BP, Allen CCR. The distribution of novel bacterial laccases in alpine paleosols is directly related to soil stratigraphy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 671:19-27. [PMID: 30927724 DOI: 10.1016/j.scitotenv.2019.03.250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 03/12/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
Bacterial laccases are now known to be abundant in soil and to function outside of the cell facilitating the bacterial degradation of lignin. In this study we wanted to test the hypotheses that: i) Such enzymes can be identified readily in stratified paleosols using metagenomics approaches, ii) The distribution of these genes as potential 'public good' proteins in soil is a function of the soil environment, iii) Such laccase genes can be readily retrieved and expressed in E. coli cloning systems to demonstrate that de novo assembly processes can be used to obtain similar metagenome-derived enzyme activities. To test these hypotheses, in silico gene-targeted assembly was employed to identify genes encoding novel type B two-domain bacterial laccases from alpine soil metagenomes sequenced on an Illumina MiSeq sequencer. The genes obtained from different strata were heterologously cloned, expressed and the gene products were shown to be active against two classical laccase substrates. The use of a metagenome-driven pipeline to obtain such active biocatalysts has demonstrated the potential for gene mining to be applied systematically for the discovery of such enzymes. These data ultimately further demonstrate the application of soil pedology methods to environmental enzyme discovery. As an interdisciplinary effort, we can now establish that paleosols can serve as a useful source of novel biocatalytic enzymes for various applications. We also, for the first time, link soil stratigraphy to enzyme profiling for widespread functional gene activity in paleosols.
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Affiliation(s)
| | | | | | - Christopher C R Allen
- School of Biological Sciences, Queen's University Belfast, UK; Institute for Global Food Security, Queen's University Belfast, UK.
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Góralczyk-Bińkowska A, Jasińska A, Długoński J. CHARACTERISTICS AND USE OF MULTICOPPER OXIDASES ENZYMES. ADVANCEMENTS OF MICROBIOLOGY 2019. [DOI: 10.21307/pm-2019.58.1.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhu Y, Zhang Y, Zhan J, Lin Y, Yang X. Axial bonds at the T1 Cu site of Thermus thermophilus SG0.5JP17-16 laccase influence enzymatic properties. FEBS Open Bio 2019; 9:986-995. [PMID: 30964606 PMCID: PMC6487685 DOI: 10.1002/2211-5463.12633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/20/2019] [Accepted: 03/22/2019] [Indexed: 11/24/2022] Open
Abstract
Laccase is a multi‐copper oxidase which oxidizes substrate at the type 1 copper site, simultaneously coupling the reduction of dioxygen to water at the trinuclear copper center. In this study, we used site‐directed mutagenesis to study the effect of axial bonds between the metal and amino acid residue side chains in lacTT. Our kinetic and spectral data showed that the replacement of the axial residue with non‐coordinating residues resulted in higher efficiency (kcat/Km) and a lower Cu2+ population at the type 1 copper site, while substitution with strongly coordinating residues resulted in lower efficiency and a higher Cu2+ population, as compared with the wild‐type. The redox potentials of mutants with hydrophobic axial residues (Ala and Phe) were higher than that of the wild‐type. In conclusion, these insights into the catalytic mechanism of laccase may be of use in protein engineering to fine‐tune its enzymatic properties for industrial application.
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Affiliation(s)
- Yanyun Zhu
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
- Guangdong Research Center of Industrial Enzyme and Green Manufacturing TechnologySchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
| | - Yi Zhang
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
- Guangdong Research Center of Industrial Enzyme and Green Manufacturing TechnologySchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
| | - Jiangbo Zhan
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
- Guangdong Research Center of Industrial Enzyme and Green Manufacturing TechnologySchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
| | - Ying Lin
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
- Guangdong Research Center of Industrial Enzyme and Green Manufacturing TechnologySchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
| | - Xiaorong Yang
- Guangdong Provincial Key Laboratory of Fermentation and Enzyme EngineeringSchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
- Guangdong Research Center of Industrial Enzyme and Green Manufacturing TechnologySchool of Biology and Biological EngineeringSouth China University of TechnologyGuangzhouChina
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44
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Alba-Molina D, Rodríguez-Padrón D, Puente-Santiago AR, Giner-Casares JJ, Martín-Romero MT, Camacho L, Martins LO, Muñoz-Batista MJ, Cano M, Luque R. Mimicking the bioelectrocatalytic function of recombinant CotA laccase through electrostatically self-assembled bioconjugates. NANOSCALE 2019; 11:1549-1554. [PMID: 30629067 DOI: 10.1039/c8nr06001k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Unprecedented 3D nanobiosystems composed of recombinant CotA laccases and citrate-stabilised gold nanoparticles have been successfully achieved by an electrostatic self-assembly strategy. The bioelectrochemical reduction of O2 driven by CotA laccase at the spore coat was mimicked. Consequently key insights into its bioelectrocatalytic function were unravelled.
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Affiliation(s)
- David Alba-Molina
- Departamento de Química Física y Termodinamica Aplicada, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUIQFN, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, E-14071 Córdoba, Spain.
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Das R, Li G, Mai B, An T. Spore cells from BPA degrading bacteria Bacillus sp. GZB displaying high laccase activity and stability for BPA degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:798-806. [PMID: 29879666 DOI: 10.1016/j.scitotenv.2018.05.379] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/30/2018] [Accepted: 05/30/2018] [Indexed: 05/14/2023]
Abstract
Laccase has been applied extensively as a biocatalyst to remove different organic pollutants. This study characterized a spore-laccase from the bisphenol A (BPA)-degrading strain Bacillus sp. GZB. The spore-laccase was encoded with 513 amino acids, containing spore coat protein A (CotA). It showed optimal activity at 70 °C and pH = 7.2 in presence of 2, 6-dimethoxyphenol. At 60 °C, optimal activity was also seen at pH = 3.0 and pH = 6.8 with 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulfonate) and syringaldazine, respectively. The spore-laccase was stable at high temperature, at acidic to alkaline pH values, and in the presence of different organic solvents. Spore-laccase activity was increased by introducing Cu2+, Mg2+, and Na+, but was strongly inhibited by Fe2+, Ag+, l-cysteine, dithiothreitol, and NaN3. The cotA gene was cloned and expressed in E. coli BL21 (DE3); the purified protein was estimated as having a molecular weight of ~63 kDa. Different synthetic dyes and BPA were effectively decolorized or degraded both by the spore laccase and recombinant laccase. When BPA oxidation was catalyzed using laccase, there was an initial formation of phenoxy radicals and further oxidation or CC bond cleavage of the radicals produced different organic acids. Detailed reaction pathways were developed based on nine identified intermediates. The acute toxicity decreased gradually during BPA degradation by laccase. This study is the first report about a genus of Bacillus that can produce a highly active and stable laccase to degrade BPA.
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Affiliation(s)
- Ranjit Das
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Guiying Li
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
| | - Bixian Mai
- State Key Laboratory of Organic Geochemistry and Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Taicheng An
- Guangzhou Key Laboratory Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
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46
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Application of eukaryotic and prokaryotic laccases in biosensor and biofuel cells: recent advances and electrochemical aspects. Appl Microbiol Biotechnol 2018; 102:10409-10423. [PMID: 30327832 DOI: 10.1007/s00253-018-9421-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 12/25/2022]
Abstract
Laccases exhibit a wide range of applications, especially in the electrochemical field, where they are regarded as a potential biotic component. Laccase-based biosensors have immense practical applications in the food, environmental, and medical fields. The application of laccases as biocathodes in enzymatic biofuel cells has promising potential in the preparation of implantable equipment. Extensive studies have been directed towards the potential role of fungal laccases as biotic components of electrochemical equipment. In contrast, the potential of prokaryotic laccases in electrochemistry has been not fully understood. However, there has been recent and rapid progress in the discovery and characterization of new types of prokaryotic laccases. In this review, we have comprehensively discussed the application of different sources of laccases as a biocatalytic component in various fields of application. Further, we described the potential of different types of laccases in bioelectrochemical applications.
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47
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Guan ZB, Luo Q, Wang HR, Chen Y, Liao XR. Bacterial laccases: promising biological green tools for industrial applications. Cell Mol Life Sci 2018; 75:3569-3592. [PMID: 30046841 PMCID: PMC11105425 DOI: 10.1007/s00018-018-2883-z] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/30/2018] [Accepted: 07/19/2018] [Indexed: 11/26/2022]
Abstract
Multicopper oxidases (MCOs) are a pervasive family of enzymes that oxidize a wide range of phenolic and nonphenolic aromatic substrates, concomitantly with the reduction of dioxygen to water. MCOs are usually divided into two functional classes: metalloxidases and laccases. Given their broad substrate specificity and eco-friendliness (molecular oxygen from air as is used as the final electron acceptor and they only release water as byproduct), laccases are regarded as promising biological green tools for an array of applications. Among these laccases, those of bacterial origin have attracted research attention because of their notable advantages, including broad substrate spectrum, wide pH range, high thermostability, and tolerance to alkaline environments. This review aims to summarize the significant research efforts on the properties, mechanisms and structures, laccase-mediator systems, genetic engineering, immobilization, and biotechnological applications of the bacteria-source laccases and laccase-like enzymes, which principally include Bacillus laccases, actinomycetic laccases and some other species of bacterial laccases. In addition, these enzymes may offer tremendous potential for environmental and industrial applications.
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Affiliation(s)
- Zheng-Bing Guan
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China.
| | - Quan Luo
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Hao-Ran Wang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Yu Chen
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Xiang-Ru Liao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
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48
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Goacher RE, Braham EJ, Michienzi CL, Flick RM, Yakunin AF, Master ER. Direct analysis by time-of-flight secondary ion mass spectrometry reveals action of bacterial laccase-mediator systems on both hardwood and softwood samples. PHYSIOLOGIA PLANTARUM 2018; 164:5-16. [PMID: 29286544 DOI: 10.1111/ppl.12688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 12/20/2017] [Accepted: 12/26/2017] [Indexed: 06/07/2023]
Abstract
The modification and degradation of lignin play a vital role in carbon cycling as well as production of biofuels and bioproducts. The possibility of using bacterial laccases for the oxidation of lignin offers a route to utilize existing industrial protein expression techniques. However, bacterial laccases are most frequently studied on small model compounds that do not capture the complexity of lignocellulosic materials. This work studied the action of laccases from Bacillus subtilis and Salmonella typhimurium (EC 1.10.3.2) on ground wood samples from yellow birch (Betula alleghaniensis) and red spruce (Picea rubens). The ability of bacterial laccases to modify wood can be facilitated by small molecule mediators. Herein, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), gallic acid and sinapic acid mediators were tested. Direct analysis of the wood samples was achieved by time-of-flight secondary ion mass spectrometry (ToF-SIMS), a surface sensitive mass spectrometry technique that has characteristic peaks for H, G and S lignin. The action of the bacterial laccases on both wood samples was demonstrated and revealed a strong mediator influence. The ABTS mediator led to delignification, evident in an overall increase of polysaccharide peaks in the residual solid, along with equal loss of G and S-lignin peaks. The gallic acid mediator demonstrated minimal laccase activity. Meanwhile, the sinapic acid mediator altered the S/G peak ratio consistent with mediator attaching to the wood solids. The current investigation demonstrates the action of bacterial laccase-mediator systems directly on woody materials, and the potential of using ToF-SIMS to uncover the fundamental and applied role of bacterial enzymes in lignocellulose conversion.
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Affiliation(s)
- Robyn E Goacher
- Department of Biochemistry, Chemistry and Physics, Niagara University, 5795 Lewiston Road, Lewiston, NY, 14109, USA
| | - Erick J Braham
- Department of Biochemistry, Chemistry and Physics, Niagara University, 5795 Lewiston Road, Lewiston, NY, 14109, USA
- Department of Chemistry, Texas A&M University, 580 Ross Street, College Station, TX, 77843, USA
| | - Courtney L Michienzi
- Department of Biochemistry, Chemistry and Physics, Niagara University, 5795 Lewiston Road, Lewiston, NY, 14109, USA
| | - Robert M Flick
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Alexander F Yakunin
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
| | - Emma R Master
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario, M5S 3E5, Canada
- Department of Bioproducts and Biosystems, Aalto University, FI-00076 Aalto, Kemistintie 1, Espoo, Finland
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49
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Chumillas S, Maestro B, Feliu JM, Climent V. Comprehensive Study of the Enzymatic Catalysis of the Electrochemical Oxygen Reduction Reaction (ORR) by Immobilized Copper Efflux Oxidase (CueO) From Escherichia coli. Front Chem 2018; 6:358. [PMID: 30197881 PMCID: PMC6117412 DOI: 10.3389/fchem.2018.00358] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 07/30/2018] [Indexed: 11/23/2022] Open
Abstract
In recent years, enzymatic fuel cells have experienced a great development promoted by the availability of novel biological techniques that allow the access to a large number of enzymatic catalysts. One of the most important aspects in this area is the development of biocatalysts for the oxygen reduction reaction (ORR). Laccases from the group of enzymes called blue multi-cooper oxidases have received considerable attention because of their ability to catalyze the electrochemical oxygen reduction reaction to water when immobilized on metallic or carbonaceous electrode materials. In this paper we report a comprehensive study of the electrocatalytic activity of the enzyme Copper efflux oxidase (CueO) from Escherichia coli immobilized on different electrode materials. The influence of the electrode substrate employed for protein immobilization was evaluated using glassy carbon, gold or platinum electrodes. Gold and platinum electrodes were modified using different self-assembled monolayers (SAM) able to tune the electrostatic interaction between the protein and the substrate, depending on the nature of the terminal functional group in the SAM. The effects of protein immobilization time, electrode potential, solution pH and temperature, protein and O2 concentration have been carefully investigated. Finally, direct electron transfer (DET) was investigated in the presence of the following inhibitors: fluoride (F−), chloride (Cl−) and azide (N3-).
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Affiliation(s)
- Sara Chumillas
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
| | - Beatriz Maestro
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
| | - Juan M Feliu
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
| | - Víctor Climent
- Institute of Electrochemistry, University of Alicante, Alicante, Spain
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50
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Bello-Gil D, Roig-Molina E, Fonseca J, Sarmiento-Ferrández MD, Ferrándiz M, Franco E, Mira E, Maestro B, Sanz JM. An enzymatic system for decolorization of wastewater dyes using immobilized CueO laccase-like multicopper oxidase on poly-3-hydroxybutyrate. Microb Biotechnol 2018; 11:881-892. [PMID: 29896867 PMCID: PMC6116751 DOI: 10.1111/1751-7915.13287] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 04/28/2018] [Accepted: 05/24/2018] [Indexed: 01/06/2023] Open
Abstract
The presence of synthetic dyes in wastewaters generated by the textile industry constitutes a serious environmental and health problem that urges the scientific community on an appropriate action. As a proof‐of‐concept, we have developed a novel approach to design enzymatic bioreactors with the ability to decolorize dye solutions through the immobilization of the bacterial CueO laccase‐like multicopper oxidase from Escherichia coli on polyhydroxybutyrate (PHB) beads by making use of the BioF affinity tag. The decolorization efficiency of the system was characterized by a series of parameters, namely maximum enzyme adsorption capacity, pH profile, kinetic constants, substrate range, temperature and bioreactor recycling. Depending on the tested dye, immobilization increased the catalytic activity of CueO by up to 40‐fold with respect to the soluble enzyme, reaching decolorization efficiencies of 45–90%. Our results indicate that oxidase bioreactors based on polyhydroxyalkanoates are a promising alternative for the treatment of coloured industrial wastewaters.
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Affiliation(s)
- Daniel Bello-Gil
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Avda. Universidad s/n, 03202, Elche, Spain
| | - Emma Roig-Molina
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Avda. Universidad s/n, 03202, Elche, Spain
| | - Jennifer Fonseca
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Avda. Universidad s/n, 03202, Elche, Spain
| | | | - Marcela Ferrándiz
- Biotechnology Research Group, Textile Research Institute (AITEX), Plaza Emilio Sala 1, 03801, Alcoy, Spain
| | - Esther Franco
- Biotechnology Research Group, Textile Research Institute (AITEX), Plaza Emilio Sala 1, 03801, Alcoy, Spain
| | - Elena Mira
- Biotechnology Research Group, Textile Research Institute (AITEX), Plaza Emilio Sala 1, 03801, Alcoy, Spain
| | - Beatriz Maestro
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Avda. Universidad s/n, 03202, Elche, Spain
| | - Jesús M Sanz
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Avda. Universidad s/n, 03202, Elche, Spain.,Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, c/Ramiro de Maeztu 9, 28040, Madrid, Spain
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