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Edoamodu CE, Nwodo UU. Optimisation and physicochemical characterisation of a thermo-alkali stable laccase produced by wastewater associated Bacillus sp. NU2. ENVIRONMENTAL TECHNOLOGY 2024; 45:4441-4456. [PMID: 37641161 DOI: 10.1080/09593330.2023.2253503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 08/09/2023] [Indexed: 08/31/2023]
Abstract
Laccase is a multicopper enzyme that plays a unique role in bioremediation of environmental pollutants. Bacteria were isolated from hospital wastewater and screened for laccase production. The laccase production process condition was optimised, and the laccase obtained was characterised. The 16S rRNA molecular analysis conducted on the best laccase producer revealed a Bacillus sp. NU2 identified. The process conditions: pH5, 45°C, 100 rpm, 5% inoculum, and growth constituents viz: tangerine peel and wheat bran agro-wastes, beef extract, ammonium persulfate, glucose, galactose, xylose, sorbitol, fructose carbon sources; and 4-aminophenol inducer optimally stimulated laccase production. The Bacillus sp. NU2 laccase was optimal at pH and temperature conditions of 8.0°C and 60°C, with a noteworthy pH and thermal stability observed. Furthermore, NU2 laccase showed a moderate/high tolerance and relative activity effect on various chemical inhibitors, halides and surfactant of triton x-100 (105 ± 0.92%), PMSF (107 ± 0.81%), and NaCl (94 ± 0.81%) at 1, 3, and 6 (mM) concentration. Additionally, NU2 laccase maintained a relative activity of 101%, 104%, and 102% for Mg2+, Zn2+, and Fe3+ at 1, 3, and 6 mM respectively. Acetone and propanol significantly upregulated laccase activity at 114 ± 0.0008% and 118.24 ± 0.35 and also at 30 and 20 (%) concentrations. Conclusively, the tolerant effect of Bacillus sp. NU2 laccase in pH, temperature, inhibitors and organic solvents suggests its potential for biotechnological application and promotion of a greener environment.
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Affiliation(s)
- Chiedu E Edoamodu
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
| | - Uchechukwu U Nwodo
- SAMRC Microbial Water Quality Monitoring Centre, University of Fort Hare, Alice, South Africa
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, South Africa
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2
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Aghaee M, Salehipour M, Rezaei S, Mogharabi-Manzari M. Bioremediation of organic pollutants by laccase-metal-organic framework composites: A review of current knowledge and future perspective. BIORESOURCE TECHNOLOGY 2024; 406:131072. [PMID: 38971387 DOI: 10.1016/j.biortech.2024.131072] [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: 06/01/2024] [Revised: 06/27/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
Immobilized laccases are widely used as green biocatalysts for bioremediation of phenolic pollutants and wastewater treatment. Metal-organic frameworks (MOFs) show potential application for immobilization of laccase. Their unique adsorption properties provide a synergic effect of adsorption and biodegradation. This review focuses on bioremediation of wastewater pollutants using laccase-MOF composites, and summarizes the current knowledge and future perspective of their biodegradation and the enhancement strategies of enzyme immobilization. Mechanistic strategies of preparation of laccase-MOF composites were mainly investigated via physical adsorption, chemical binding, and de novo/co-precipitation approaches. The influence of architecture of MOFs on the efficiency of immobilization and bioremediation were discussed. Moreover, as sustainable technology, the integration of laccases and MOFs into wastewater treatment processes represents a promising approach to address the challenges posed by industrial pollution. The MOF-laccase composites can be promising and reliable alternative to conventional techniques for the treatment of wastewaters containing pharmaceuticals, dyes, and phenolic compounds. The detailed exploration of various immobilization techniques and the influence of MOF architecture on performance provides valuable insights for optimizing these composites, paving the way for future advancements in environmental biotechnology. The findings of this research have the potential to influence industrial wastewater treatment and promoting cleaner treatment processes and contributing to sustainability efforts.
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Affiliation(s)
- Mehdi Aghaee
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, P.O. Box 48175-861 Sari 4847193698, Iran
| | - Masoud Salehipour
- Department of Biology, Faculty of Biological Sciences, Parand Branch of Islamic Azad University, P.O. Box 37613-96361, Parand, Tehran, Iran
| | - Shahla Rezaei
- Department of Biology, Faculty of Biological Sciences, Parand Branch of Islamic Azad University, P.O. Box 37613-96361, Parand, Tehran, Iran
| | - Mehdi Mogharabi-Manzari
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, P.O. Box 48175-861 Sari 4847193698, Iran; Thalassemia Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran.
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3
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Wang T, Liu Y, Zou K, Guan M, Wu Y, Hu Y, Yu H, Du J, Wu D. The Analysis, Description, and Examination of the Maize LAC Gene Family's Reaction to Abiotic and Biotic Stress. Genes (Basel) 2024; 15:749. [PMID: 38927685 PMCID: PMC11202975 DOI: 10.3390/genes15060749] [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: 05/10/2024] [Revised: 06/02/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024] Open
Abstract
Laccase (LAC) is a diverse group of genes found throughout the plant genome essential for plant growth and the response to stress by converting monolignin into intricate lignin formations. However, a comprehensive investigation of maize laccase has not yet been documented. A bioinformatics approach was utilized in this research to conduct a thorough examination of maize (Zea mays L.), resulting in the identification and categorization of 22 laccase genes (ZmLAC) into six subfamilies. The gene structure and motifs of each subgroup were largely consistent. The distribution of the 22 LAC genes was uneven among the maize chromosomes, with the exception of chromosome 9. The differentiation of the genes was based on fragment replication, and the differentiation time was about 33.37 million years ago. ZmLAC proteins are primarily acidic proteins. There are 18 cis-acting elements in the promoter sequences of the maize LAC gene family associated with growth and development, stress, hormones, light response, and stress response. The analysis of tissue-specific expression revealed a high expression of the maize LAC gene family prior to the V9 stage, with minimal expression at post-V9. Upon reviewing the RNA-seq information from the publicly available transcriptome, it was discovered that ZmLAC5, ZmLAC10, and ZmLAC17 exhibited significant expression levels when exposed to various biotic and abiotic stress factors, suggesting their crucial involvement in stress responses and potential value for further research. This study offers an understanding of the functions of the LAC genes in maize's response to biotic and abiotic stress, along with a theoretical basis for comprehending the molecular processes at play.
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Affiliation(s)
- Tonghan Wang
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Yang Liu
- College of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, China; (Y.L.); (M.G.)
| | - Kunliang Zou
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Minhui Guan
- College of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, China; (Y.L.); (M.G.)
| | - Yutong Wu
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Ying Hu
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Haibing Yu
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Junli Du
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
| | - Degong Wu
- College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China; (T.W.); (K.Z.); (Y.W.); (Y.H.); (H.Y.); (J.D.)
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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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Martin E, Dubessay P, Record E, Audonnet F, Michaud P. Recent advances in laccase activity assays: A crucial challenge for applications on complex substrates. Enzyme Microb Technol 2024; 173:110373. [PMID: 38091836 DOI: 10.1016/j.enzmictec.2023.110373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
Despite being one of the first enzymes discovered in 1883, the determination of laccase activity remains a scientific challenge, and a barrier to the full use of laccase as a biocatalyst. Indeed, laccase, an oxidase of the blue multi-copper oxidases family, has a wide range of substrates including substituted phenols, aromatic amines and lignin-related compounds. Its one-electron mechanism requires only oxygen and releases water as a reaction product. These characteristics make laccase a biocatalyst of interest in many fields of applications including pulp and paper industry, biorefineries, food, textile, and pharmaceutical industries. But to fully envisage the use of laccase at an industrial scale, its activity must be reliably quantifiable on complex substrates and in complex matrices. This review aims to describe current and emerging methods for laccase activity assays and place them in the context of a potential industrial use of the enzyme.
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Affiliation(s)
- Elise Martin
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Pascal Dubessay
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Eric Record
- INRAE, Aix-Marseille Université, UMR1163, Biodiversité et Biotechnologie Fongiques, 13288 Marseille, France
| | - Fabrice Audonnet
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France
| | - Philippe Michaud
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut Pascal, F-63000 Clermont-Ferrand, France.
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6
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Bhatt S, Choudhary P, Chatterjee S, Akhter Y. Comparative analysis of SilA-laccase mediated degradation of ciprofloxacin, norfloxacin and ofloxacin and interpretation of the possible catalytic mechanism. J Biomol Struct Dyn 2024; 42:425-434. [PMID: 37096761 DOI: 10.1080/07391102.2023.2197074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 03/13/2023] [Indexed: 04/26/2023]
Abstract
Fluoroquinolones (FQs) are the most commonly used antimicrobial drugs and regardless of their advantages in the healthcare sector, the pollution of these antimicrobial drugs in the environment has big concerns about human and environmental health. The presence of these antibiotic drugs even at the lowest concentrations in the environment has resulted in the emergence and spread of antibiotic resistance. Hence, it is necessary to remediate these pollutants from the environment. Previously alkaline laccase (SilA) from Streptomyces ipomoeae has been demonstrated to show degrading potentials against two of the FQs, Ciprofloxacin (CIP) and Norfloxacin (NOR); however, the molecular mechanism was not elucidated in detail. In this study, we have analyzed the possible molecular catalytic mechanism of FQ degrading SilA-laccase for the degradation of the FQs, CIP, NOR and Ofloxacin (OFL) using three-dimensional protein structure modeling, molecular docking and molecular dynamic (MD) studies. The comparative protein sequence analysis revealed the presence of tetrapeptide conserved catalytic motif, His102-X-His104-Gly105. After evaluating the active site of the enzyme in depth using CDD, COACH and S-site tools, we have identified the catalytic triad composed of three conserved amino acid residues, His102, Val103 and Tyr108 with which ligands interacted during the catalysis process. By analyzing the MD trajectories, it is revealed that the highest degradation potential of SilA is for CIP followed by NOR and OFL. Ultimately, this study provides the possible comparative catalytic mechanism for the degradation of CIP, NOR and OFL by the SilA enzyme.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sunidhi Bhatt
- Bioremediation and Metabolomics Research Group, Department of Environmental Sciences, Central University of Himachal Pradesh, Distt-Kangara, Himachal Pradesh, India
| | - Priyanka Choudhary
- Bioremediation and Metabolomics Research Group, Department of Environmental Sciences, Central University of Himachal Pradesh, Distt-Kangara, Himachal Pradesh, India
| | - Subhankar Chatterjee
- Bioremediation and Metabolomics Research Group, Department of Ecology & Environmental Sciences, Pondicherry University, Kalapet, Puducherry, India
| | - Yusuf Akhter
- Department of Biotechnology, Babasaheb Bhimrao Ambedkar University, Lucknow, India
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Ali S, Huang S, Zhou J, Bai Y, Liu Y, Shi L, Liu S, Hu Z, Tang Y. miR397-LACs mediated cadmium stress tolerance in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2023; 113:415-430. [PMID: 37566350 DOI: 10.1007/s11103-023-01369-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/04/2023] [Indexed: 08/12/2023]
Abstract
Cadmium (Cd) is a non-essential heavy metal, assimilated in plant tissue with other nutrients, disturbing the ions' homeostasis in plants. The plant develops different mechanisms to tolerate the hazardous environmental effects of Cd. Recently studies found different miRNAs that are involved in Cd stress. In the current study, miR397 mutant lines were constructed to explore the molecular mechanisms of miR397 underlying Cd tolerance. Compared with the genetically modified line of overexpressed miR397 (artificial miR397, amiR397), the lines of downregulated miR397 (Short Tandem Target Mimic miR397, STTM miR397) showed more substantial Cd tolerance with higher chlorophyll a & b, carotenoid and lignin content. ICP-OES revealed higher cell wall Cd and low total Cd levels in STTM miR397 than in the wild-type and amiR397 plants.Further, the STTM plants produced fewer reactive oxygen species (ROS) and lower activity of antioxidants enzymes (e.g., catalase [CAT], malondialdehyde [MDA]) compared with amiR397 and wild-type plants after stress, indicating that silencing the expression of miR397 can reduce oxidative damage. In addition, the different family transporters' gene expression was much higher in the amiR397 plants than in the wild type and STTM miRNA397. Our results suggest that miR397 plays a role in Cd tolerance in Arabidopsis thaliana. Overexpression of miR397 could decrease Cd tolerance in plants by regulating the expression of LAC 2/4/17, changing the lignin content, which may play an important role in inducing different stress-tolerant mechanisms and protecting the cell from a hazardous condition. This study provides a basis to elucidate the functions of miR397 and the Cd stress tolerance mechanism in Arabidopsis thaliana.
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Affiliation(s)
- Shahid Ali
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Shili Huang
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Jiajie Zhou
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yongsheng Bai
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yang Liu
- Guangdong Academy of Forestry, Guangzhou, 510520, Guangdong Province, China
| | - Liyu Shi
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Shuai Liu
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, 710003, Shaanxi, China
| | - Zhangli Hu
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China
| | - Yulin Tang
- Guangdong Provincial Key Laboratory for Plant Epigenetics; Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Sciences, Longhua Institute of Innovative Biotechnology, College of Life Science and Oceanography, Shenzhen University, Shenzhen, 518060, Guangdong Province, China.
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Van Wieren A, Colen P, Majumdar S. A project-oriented biochemistry laboratory for protein engineering and structure-function using small laccase enzyme from Streptomyces coelicolor. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2023; 51:708-718. [PMID: 37597129 DOI: 10.1002/bmb.21778] [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: 07/27/2022] [Revised: 05/30/2023] [Accepted: 08/03/2023] [Indexed: 08/21/2023]
Abstract
An understanding of structure-function relationships in proteins is essential for modern biochemical studies. The integration of common freely accessible bioinformatics tools available online with the knowledge of protein-engineering tools provide a fundamental understanding of the application of protein structure-function for biochemical research. In order for students to apply their prior knowledge of recombinant protein technology into the understanding of protein structure-function relationships, we developed a semester-long project-oriented biochemistry laboratory experience that is the second laboratory course of a series. For easier integration of knowledge and application, we organized this course into four sequential modules: protein structure visualization/modification, mutagenesis target identification, site-directed mutagenesis, and mutant protein expression, purification, and characterization. These tasks were performed on the protein small laccase (SLAC) that was cloned and characterized by students in the previous semester during the first biochemistry laboratory course of the series. This goal-oriented project-based approach helped students apply their prior knowledge to newly introduced techniques to understand protein structure-function relationships in this research-like laboratory setting. A student assessment before and after the course demonstrated an overall increase in learning and enthusiasm for this topic.
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Affiliation(s)
- Arie Van Wieren
- Madia Department of Chemistry, Biochemistry, Physics and Engineering, Indiana University of Pennsylvania, Indiana, Pennsylvania, USA
| | - Philip Colen
- Madia Department of Chemistry, Biochemistry, Physics and Engineering, Indiana University of Pennsylvania, Indiana, Pennsylvania, USA
| | - Sudipta Majumdar
- Madia Department of Chemistry, Biochemistry, Physics and Engineering, Indiana University of Pennsylvania, Indiana, Pennsylvania, USA
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9
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Bai BMY, Wang TT, Chen XA, Wu CC. Pathogen inhibition and indication by gelatin nonwoven mats with incorporation of polyphenol derivatives. RSC Adv 2023; 13:31602-31615. [PMID: 37908665 PMCID: PMC10613854 DOI: 10.1039/d3ra05905g] [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: 08/30/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023] Open
Abstract
There is a need for non-pharmaceutical intervention methods that can prevent and indicate the risk of airborne disease spread. In this study, we developed a nonwoven mat based on the polyphenol gallic acid, which can inhibit pathogens growth and also indicate pathogen levels in the surrounding environment. Using nuclear magnetic resonance, Fourier-transform infrared spectroscopy, and high-performance liquid chromatography, we characterized this novel gelatin-based nonwoven mat and investigated the mechanism governing its ability to indicate pathogen levels. We demonstrated that the incorporation of gallic acid serves a vital role in indicating the presence of bacteria, causing the nonwoven mat to change in color from white to brown. We have proposed a plausible mechanism for this color change behavior based on a reaction of gallic acid with components excreted by bacteria, including glutamate, valine, and leucine. The concentrations of these components reflect the bacterial counts, enabling a real-time indication of pathogen levels in the surrounding air. In summary, the nonwoven mat presented herein can serve as an excellent antibacterial agent and as an indicator of nearby bacteria for fabricating personal protection equipment like filtration mask.
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Affiliation(s)
- By Meng-Yi Bai
- Graduate Institute of Biomedical Engineering and Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology TR-917, AAEON Building, No. 43, Keelung Rd., Sec. 4, Da'an Dist. Taipei City 10607 Taiwan Republic of China
- Adjunct Appointment to the National Defense Medical Center Taipei 11490 Taiwan Republic of China
| | - Ting-Teng Wang
- Graduate Institute of Biomedical Engineering and Biomedical Engineering Program, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology TR-917, AAEON Building, No. 43, Keelung Rd., Sec. 4, Da'an Dist. Taipei City 10607 Taiwan Republic of China
| | - Xin-An Chen
- Institute of Prevention Medicine, National Defense Medical Center Taipei 11490 Taiwan Republic of China
| | - Chia-Chun Wu
- Institute of Prevention Medicine, National Defense Medical Center Taipei 11490 Taiwan Republic of China
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Mora-Gamboa MPC, Ferrucho-Calle MC, Ardila-Leal LD, Rojas-Ojeda LM, Galindo JF, Poutou-Piñales RA, Pedroza-Rodríguez AM, Quevedo-Hidalgo BE. Statistical Improvement of rGILCC 1 and rPOXA 1B Laccases Activity Assay Conditions Supported by Molecular Dynamics. Molecules 2023; 28:7263. [PMID: 37959683 PMCID: PMC10648076 DOI: 10.3390/molecules28217263] [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: 09/06/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 11/15/2023] Open
Abstract
Laccases (E.C. 1.10.3.2) are glycoproteins widely distributed in nature. Their structural conformation includes three copper sites in their catalytic center, which are responsible for facilitating substrate oxidation, leading to the generation of H2O instead of H2O2. The measurement of laccase activity (UL-1) results may vary depending on the type of laccase, buffer, redox mediators, and substrates employed. The aim was to select the best conditions for rGILCC 1 and rPOXA 1B laccases activity assay. After sequential statistical assays, the molecular dynamics proved to support this process, and we aimed to accumulate valuable insights into the potential application of these enzymes for the degradation of novel substrates with negative environmental implications. Citrate buffer treatment T2 (CB T2) (pH 3.0 ± 0.2; λ420nm, 2 mM ABTS) had the most favorable results, with 7.315 ± 0.131 UL-1 for rGILCC 1 and 5291.665 ± 45.83 UL-1 for rPOXA 1B. The use of citrate buffer increased the enzyme affinity for ABTS since lower Km values occurred for both enzymes (1.49 × 10-2 mM for rGILCC 1 and 3.72 × 10-2 mM for rPOXA 1B) compared to those obtained in acetate buffer (5.36 × 10-2 mM for rGILCC 1 and 1.72 mM for rPOXA 1B). The molecular dynamics of GILCC 1-ABTS and POXA 1B-ABTS showed stable behavior, with root mean square deviation (RMSD) values not exceeding 2.0 Å. Enzyme activities (rGILCC 1 and rPOXA 1B) and 3D model-ABTS interactions (GILCC 1-ABTS and POXA 1B-ABTS) were under the strong influence of pH, wavelength, ions, and ABTS concentration, supported by computational studies identifying the stabilizing residues and interactions. Integration of the experimental and computational approaches yielded a comprehensive understanding of enzyme-substrate interactions, offering potential applications in environmental substrate treatments.
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Affiliation(s)
- María P. C. Mora-Gamboa
- Laboratorio de Biotecnología Molecular, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia (M.C.F.-C.); (L.D.A.-L.)
| | - María C. Ferrucho-Calle
- Laboratorio de Biotecnología Molecular, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia (M.C.F.-C.); (L.D.A.-L.)
| | - Leidy D. Ardila-Leal
- Laboratorio de Biotecnología Molecular, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia (M.C.F.-C.); (L.D.A.-L.)
- Laboratorio de Biotecnología Vegetal, Grupo de Investigación en Asuntos Ambientales y Desarrollo Sostenible (MINDALA), Departamento de Ciencias Agrarias y del Ambiente, Universidad Francisco de Paula Santander, Ocaña 546552, Colombia
| | - Lina M. Rojas-Ojeda
- Departamento de Química, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Johan F. Galindo
- Departamento de Química, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Raúl A. Poutou-Piñales
- Laboratorio de Biotecnología Molecular, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia (M.C.F.-C.); (L.D.A.-L.)
| | - Aura M. Pedroza-Rodríguez
- Laboratorio de Microbiología Ambiental y Suelos, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia
| | - Balkys E. Quevedo-Hidalgo
- Laboratorio de Biotecnología Aplicada, Grupo de Biotecnología Ambiental e Industrial (GBAI), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá 110231, Colombia;
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11
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Sun XB, Yang ZH, Jin DJ, Qiu YG, Gu W. Design, synthesis and antifungal evaluation of novel nopol derivatives as potent laccase inhibitors. PEST MANAGEMENT SCIENCE 2023; 79:2469-2481. [PMID: 36827223 DOI: 10.1002/ps.7426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/20/2023] [Accepted: 02/24/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND To explore further potential natural product-based antifungal agents, a series of novel nopol-based carboxamide and hydrazide derivatives containing a natural pinene structure were designed, synthesized, and evaluated for their inhibitory activities against seven phytopathogenic fungi and oomycetes. RESULTS The bioassay results indicated that some compounds exhibited good inhibitory activities against Gibberella zeae, Sclerotinia sclerotiorum, and Phytophthora capsici. Among them, compound 3h displayed excellent in vitro activities against G. zeae, with EC50 values of 1.09 mg L-1 , which was comparable with the commercial fungicides bixafen and carbendazim (median effective concentration [EC50 ] = 1.21 and 0.89 mg L-1 , respectively). Notably, in vivo bioassay results suggested that compound 3h also showed prominent protective and curative effects (95.6% and 94.2%) at 200 mg L-1 against G. zeae. The scanning electron microscopy study indicated that compound 3h could destroy the morphological integrity of G. zeae hyphae. The in vitro enzyme inhibitory bioassay revealed that compound 3h exhibited potent inhibitory activity against laccase with median inhibitory concentration (IC50 ) values of 4.93 μm, superior to positive control cysteine (IC50 = 35.50 μm), and its binding modes with laccase were elucidated by molecular docking study. In addition, the fluorescent imaging of the dansylamide-labeled derivatives 8 on wheat leaf epidermal cells and the hyphae of G. zeae revealed that this class of hydrazide derivatives could readily permeate into wheat leaves and reached the laccase target in fungal cells. CONCLUSION Some nopol-based hydrazide derivatives exhibited excellent anti-G. zeae activity and laccase inhibitory activity, which merits further development as a new fungicide candidate for controlling Fusarium head blight. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xue-Bao Sun
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Zi-Hui Yang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Dao-Jun Jin
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Yi-Gui Qiu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Wen Gu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-forest Biomass, Jiangsu Key Lab of Biomass-based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
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12
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Wang J, Zhang R, Ding G, Wang L, Wang W, Zhang Y, Zhu G. Comparative genomic analysis of five coprinoid mushrooms species. Funct Integr Genomics 2023; 23:159. [PMID: 37178396 PMCID: PMC10182949 DOI: 10.1007/s10142-023-01094-0] [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: 11/30/2022] [Revised: 04/24/2023] [Accepted: 05/09/2023] [Indexed: 05/15/2023]
Abstract
Although coprinoid mushrooms are widely known for the phenomenon of deliquescence and production of fungal laccases and extracellular peroxygenases, the genome structure and genetic diversity of coprinoid mushroom species have not been extensively studied. To reveal the genomic structure and diversity in coprinoid mushroom species, the genomes of five coprinoid mushroom species were compared and analyzed. A total of 24,303 orthologous gene families, including 89,462 genes, were identified in the five species. The numbers of core, softcore, dispensable, and private genes were 5617 (25.6%), 1628 (7.4%), 2083 (9.5%), and 12,574 (57.4%), respectively. Differentiation time analysis revealed that Coprinellus micaceus and Coprinellus angulatus differentiated approximately 181.0 million years ago. Coprinopsis cinerea and Coprinopsis marcescibilis differentiated approximately 131.0 million years ago, and they were differentiated from Candolleomyces aberdarensis approximately 176.0 million years ago. Gene family contraction and expansion analyses showed that 1465 genes and 532 gene families were expanded, and 95 genes and 134 gene families were contracted. Ninety-five laccase-coding genes were detected in the five species, and the distribution of the laccase-coding genes in the five species was not uniform. These data provide a reference for a deeper understanding of the genetic structure of the genomes of coprinoid mushroom species. Furthermore, this study provides a reference for follow-up studies on the genome structure of coprinoid mushroom species and the diversity of specific functional genes.
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Affiliation(s)
- Jingjing Wang
- Department of Life Science, Hefei Normal University, Hefei, 230061, China
- Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Hefei, 230061, China
- Department of Life Science, Anhui University, Hefei, 230601, China
| | - Ran Zhang
- Department of Life Science, Hefei Normal University, Hefei, 230061, China
- Department of Life Science, Anhui University, Hefei, 230601, China
| | - Guoao Ding
- Department of Life Science, Hefei Normal University, Hefei, 230061, China
- Department of Life Science, Anhui University, Hefei, 230601, China
| | - Lingling Wang
- Department of Life Science, Hefei Normal University, Hefei, 230061, China
- Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Hefei, 230061, China
| | - Wei Wang
- Department of Life Science, Hefei Normal University, Hefei, 230061, China
- Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Hefei, 230061, China
| | - Yan Zhang
- Department of Life Science, Hefei Normal University, Hefei, 230061, China.
- Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Hefei, 230061, China.
- Department of Life Science, Anhui University, Hefei, 230601, China.
| | - GuiLan Zhu
- Department of Life Science, Hefei Normal University, Hefei, 230061, China.
- Anhui Engineering Laboratory for Medicinal and Food Homologous Natural Resources Exploration, Hefei, 230061, China.
- Department of Life Science, Anhui University, Hefei, 230601, China.
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Rovaletti A, De Gioia L, Fantucci P, Greco C, Vertemara J, Zampella G, Arrigoni F, Bertini L. Recent Theoretical Insights into the Oxidative Degradation of Biopolymers and Plastics by Metalloenzymes. Int J Mol Sci 2023; 24:6368. [PMID: 37047341 PMCID: PMC10094197 DOI: 10.3390/ijms24076368] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
Molecular modeling techniques have become indispensable in many fields of molecular sciences in which the details related to mechanisms and reactivity need to be studied at an atomistic level. This review article provides a collection of computational modeling works on a topic of enormous interest and urgent relevance: the properties of metalloenzymes involved in the degradation and valorization of natural biopolymers and synthetic plastics on the basis of both circular biofuel production and bioremediation strategies. In particular, we will focus on lytic polysaccharide monooxygenase, laccases, and various heme peroxidases involved in the processing of polysaccharides, lignins, rubbers, and some synthetic polymers. Special attention will be dedicated to the interaction between these enzymes and their substrate studied at different levels of theory, starting from classical molecular docking and molecular dynamics techniques up to techniques based on quantum chemistry.
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Affiliation(s)
- Anna Rovaletti
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Piercarlo Fantucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Claudio Greco
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Jacopo Vertemara
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Giuseppe Zampella
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Federica Arrigoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca Bertini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
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14
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Sharma K, Tewatia P, Kaur M, Pathania D, Banat F, Rattan G, Singhal S, Kaushik A. Bioremediation of multifarious pollutants using laccase immobilized on magnetized and carbonyldiimidazole-functionalized cellulose nanofibers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 864:161137. [PMID: 36566870 DOI: 10.1016/j.scitotenv.2022.161137] [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: 10/01/2022] [Revised: 12/10/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
An easily recyclable biocatalyst (Lac@CDI-MCNFs) was synthesized by immobilizing laccase on rice straw-derived carbonyldiimidazole mediated magnetized cellulose nanofibers (MCNFs). Lac@CDI-MCNFs were utilized for bioremediation of cefixime antibiotic (CT), carbofuran pesticide (CF) and safranin O dye (SO) via oxidation-reduction reactions in wastewater. MCNFs provided enhanced pH, temperature and storage stability to laccase and allowed reusability for up to 25 cycles with mere 20 % decline in efficacy. The Lac@CDI-MCNFs effectively degraded 98.2 % CT and 96.8 % CF into benign metabolites within 20 h and completely degraded SO in just 7 h. Response surface modelling (RSM) was employed based on the Box Behnken Design to evaluate the effect of various parameters i.e. pH, catalyst dosage and the pollutants concentration which was further validated with experimental studies. The degradation products were identified using LCMS, which allowed the degradation pathway of the pollutants to be determined. The degradation of all pollutants followed first- order kinetics with rate constants of 0.1775, 0.0832 and 0.958 h-1 and half-life of 3.9, 5.0 and 0.723 h for CT, CF and SO, respectively. Lac@CDI-MCNFs was demonstrated to be an effective catalyst for the degradation of multifarious pollutants.
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Affiliation(s)
- Kavita Sharma
- Energy Research Centre, Panjab University, Chandigarh, India
| | - Preeti Tewatia
- Energy Research Centre, Panjab University, Chandigarh, India
| | - Manpreet Kaur
- Energy Research Centre, Panjab University, Chandigarh, India
| | - Deepak Pathania
- Department of Environmental Sciences, Central University of Jammu, J&K, India; Department of Chemistry, Sardar Patel University Mandi, Himachal Pradesh 175001, India
| | - Fawzi Banat
- Dept of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates
| | - Gaurav Rattan
- Dr. SSB University Institutes of Chemical Engineering and Technology, Panjab University, Chandigarh, India
| | - Sonal Singhal
- Department of Chemistry, Panjab University, Chandigarh, India
| | - Anupama Kaushik
- Dr. SSB University Institutes of Chemical Engineering and Technology, Panjab University, Chandigarh, India.
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15
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González-González P, Gómez-Manzo S, Tomasini A, Martínez Y Pérez JL, García Nieto E, Anaya-Hernández A, Ortiz Ortiz E, Castillo Rodríguez RA, Marcial-Quino J, Montiel-González AM. Laccase Production from Agrocybe pediades: Purification and Functional Characterization of a Consistent Laccase Isoenzyme in Liquid Culture. Microorganisms 2023; 11:microorganisms11030568. [PMID: 36985142 PMCID: PMC10053118 DOI: 10.3390/microorganisms11030568] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/30/2023] Open
Abstract
Laccases are valuable enzymes as an excellent ecological alternative for bioremediation issues because they can oxidize persistent xenobiotic compounds. The production and characterization of extracellular laccases from saprotrophic fungi from disturbed environments have been scarcely explored, even though this could diversify their functional characteristics and expand the conditions in which they carry out their catalysis. Agrocybe pediades, isolated from a disturbed forest, produces an extracellular laccase in liquid culture. The enzyme was purified, identified and characterized. Copper and hexachlorobenzene do not function as inducers for the laccase produced. Partial amino acid sequences were obtained by LC-MS/MS that share similarity with laccases from other fungi. Purified laccase is a monomer with a molecular mass between 55-60 kDa and had an optimum activity at pH 5.0 and the optimum temperature at 45 °C using 2,6-dimethoxyphenol (2,6-DMP) as substrate. The Km and Vmax also determined with 2,6-DMP were 100 μM and 285 μmol∙min-1∙mg-1, respectively, showing that the laccase of A. pediades has a higher affinity for this substrate than that of other Agaricales. These features could provide a potential catalyst for different toxic substrates and in the future laccase could be used in environmental recovery processes.
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Affiliation(s)
- Paulina González-González
- Maestría en Ciencias en Sistemas del Ambiente, Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Saúl Gómez-Manzo
- Laboratorio de Bioquímica Genética, Instituto Nacional de Pediatría, Secretaría de Salud, Ciudad de Mexico 04530, Mexico
| | - Araceli Tomasini
- Departamento de Biotecnología, CBS, Universidad Autónoma Metropolitana-Iztapalapa, Ciudad de Mexico 09340, Mexico
| | - José Luis Martínez Y Pérez
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Edelmira García Nieto
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Arely Anaya-Hernández
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
| | - Elvia Ortiz Ortiz
- Facultad de Odontología, Universidad Autónoma de Tlaxcala, Tlaxcala 90000, Mexico
| | | | - Jaime Marcial-Quino
- Centro de Investigación en Genética y Ambiente, Universidad Autónoma de Tlaxcala, Tlaxcala 90120, Mexico
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Verma S, Thakur D, Pandey CM, Kumar D. Recent Prospects of Carbonaceous Nanomaterials-Based Laccase Biosensor for Electrochemical Detection of Phenolic Compounds. BIOSENSORS 2023; 13:305. [PMID: 36979517 PMCID: PMC10046707 DOI: 10.3390/bios13030305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 02/10/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
Phenolic compounds (PhCs) are ubiquitously distributed phytochemicals found in many plants, body fluids, food items, medicines, pesticides, dyes, etc. Many PhCs are priority pollutants that are highly toxic, teratogenic, and carcinogenic. Some of these are present in body fluids and affect metabolism, while others possess numerous bioactive properties such as retaining antioxidant and antimicrobial activity in plants and food products. Therefore, there is an urgency for developing an effective, rapid, sensitive, and reliable tool for the analysis of these PhCs to address their environmental and health concern. In this context, carbonaceous nanomaterials have emerged as a promising material for the fabrication of electrochemical biosensors as they provide remarkable characteristics such as lightweight, high surface: volume, excellent conductivity, extraordinary tensile strength, and biocompatibility. This review outlines the current status of the applications of carbonaceous nanomaterials (CNTs, graphene, etc.) based enzymatic electrochemical biosensors for the detection of PhCs. Efforts have also been made to discuss the mechanism of action of the laccase enzyme for the detection of PhCs. The limitations, advanced emerging carbon-based material, current state of artificial intelligence in PhCs detection, and future scopes have also been summarized.
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Affiliation(s)
- Sakshi Verma
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Deeksha Thakur
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Chandra Mouli Pandey
- Department of Chemistry, Faculty of Science, SGT University, Gurugram 122505, India
| | - Devendra Kumar
- Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
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Guo H, Sun N, Guo J, Zhou TP, Tang L, Zhang W, Deng Y, Liao RZ, Wu Y, Wu G, Zhong F. Expanding the Promiscuity of a Copper-Dependent Oxidase for Enantioselective Cross-Coupling of Indoles. Angew Chem Int Ed Engl 2023; 62:e202219034. [PMID: 36789864 DOI: 10.1002/anie.202219034] [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: 12/26/2022] [Revised: 02/14/2023] [Accepted: 02/15/2023] [Indexed: 02/16/2023]
Abstract
Herein, we disclose the highly enantioselective oxidative cross-coupling of 3-hydroxyindole esters with various nucleophilic partners as catalyzed by copper efflux oxidase. The biocatalytic transformation delivers functionalized 2,2-disubstituted indolin-3-ones with excellent optical purity (90-99 % ee), which exhibited anticancer activity against MCF-7 cell lines, as shown by preliminary biological evaluation. Mechanistic studies and molecular docking results suggest the formation of a phenoxyl radical and enantiocontrol facilitated by a suited enzyme chiral pocket. This study is significant with regard to expanding the catalytic repertoire of natural multicopper oxidases as well as enlarging the synthetic toolbox for sustainable asymmetric oxidative coupling.
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Affiliation(s)
- Huan Guo
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Ningning Sun
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Juan Guo
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Tai-Ping Zhou
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Langyu Tang
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Wentao Zhang
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Yaming Deng
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Rong-Zhen Liao
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Yuzhou Wu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Guojiao Wu
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
| | - Fangrui Zhong
- Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Luoyu Road 1037, Wuhan, 430074, China
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Bai Y, Ali S, Liu S, Zhou J, Tang Y. Characterization of plant laccase genes and their functions. Gene 2023; 852:147060. [PMID: 36423777 DOI: 10.1016/j.gene.2022.147060] [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: 08/27/2022] [Revised: 11/11/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Laccase is a copper-containing polyphenol oxidase found in different organisms. The multigene family that encodes laccases is widely distributed in plant genomes. Plant laccases oxidize monolignols to produce lignin which is important for plant growth and stress responses. Industrial applications of fungal and bacterial laccases are extensively explored and addressed. Recently many studies have focused on the significance of plant laccase, particularly in crop yield, and its functions in different environmental conditions. This review summarizes the transcriptional and posttranscriptional regulation of plant laccase genes and their functions in plant growth and development. It especially describes the responses of laccase genes to various stresses and their contributions to plant biotic and abiotic stress resistance. In-depth explanations and scientific advances will serve as foundations for research into plant laccase genes' function, mechanism, and possible applications.
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Affiliation(s)
- Yongsheng Bai
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, Guangdong, PR China
| | - Shahid Ali
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, Guangdong, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Shuai Liu
- Shaanxi Academy of Traditional Chinese Medicine, Xi'an, Shaanxi 710003, China
| | - Jiajie Zhou
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, Guangdong, PR China
| | - Yulin Tang
- Guangdong Provincial Key Laboratory for Plant Epigenetics, Shenzhen Key Laboratory of Marine Bioresource & Eco-environmental Science, Longhua Institute of Innovative Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, Guangdong, PR China.
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19
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Liu J, Li B, Li Z, Yang F, Chen B, Chen J, Li H, Jiang Z. Deciphering the alkaline stable mechanism of bacterial laccase from Bacillus pumilus by molecular dynamics simulation can improve the decolorization of textile dyes. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130370. [PMID: 36444079 DOI: 10.1016/j.jhazmat.2022.130370] [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: 09/12/2022] [Revised: 10/25/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Laccases are considered promising tools for removing synthetic dyes from textile and tannery effluents. However, the alkaline pH in the effluents causes laccase instability, inactivation, and difficulty in its bioremediation. Based on a Bacillus pumilus ZB1 (BpLac) derived alkaline stable laccase, this study aimed to elucidate its alkaline stable mechanism at molecular level using molecular dynamics simulation. The effects of metal ions, organic solvents, and inhibitors on BpLac activity were assessed. BpLac formed more salt bridges and negatively charged surface in alkaline environment. Thereafter, pH-induced conformation changes were analyzed using GROMACS at pH 5.0 and 10.0. Among the identified residues with high fluctuation, the distance between Pro359 and Thr414 was stable at pH 10.0 but highly variable at pH 5.0. DSSP analysis suggested that BpLac formed more β-sheet and less coil at pH 10.0. Principal component analysis and free energy landscape indicated that irregular coils formed at pH 5.0 benefit for activity, while rigid α-helix and β-sheet structures formed at pH 10.0 contributed to alkaline stability. Breaking the α-helix near T1 copper center would not reduce alkaline stability but could improve dye decolorization by BpLac. Overall, these findings would advance the potential application of bacterial laccase in alkaline effluent treatment.
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Affiliation(s)
- Jiashu Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Bianxia Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Zhuang Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Fan Yang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Bixin Chen
- Guilin Jingcheng Biotechnology Company Limited, Guilin 541001, PR China
| | - Jianhui Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Huanan Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China
| | - Zhengbing Jiang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, Wuhan 430062, PR China.
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20
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Biosensors Based on Phenol Oxidases (Laccase, Tyrosinase, and Their Mixture) for Estimating the Total Phenolic Index in Food-Related Samples. Life (Basel) 2023; 13:life13020291. [PMID: 36836650 PMCID: PMC9964280 DOI: 10.3390/life13020291] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Plant phenolic compounds demonstrate bioactive properties in vitro and/or in vivo, which creates demand for their precise determination in life sciences and industry. Measuring the concentration of individual phenolic compounds is a complex task, since approximately 9000 plant phenolic substances have been identified so far. The determination of the total phenolic content (TPC) is less laborious and is used for the qualimetric evaluation of complex multicomponent samples in routine analyses. Biosensors based on phenol oxidases (POs) have been proposed as alternative analytical devices for detecting phenolic compounds; however, their effectiveness in the analysis of food and vegetal matrices has not been addressed in detail. This review describes catalytic properties of laccase and tyrosinase and reports on the enzymatic and bienzymatic sensors based on laccase and tyrosinase for estimating the total phenolic index (TPI) in food-related samples (FRSs). The review presents the classification of biosensors, POs immobilization, the functions of nanomaterials, the biosensing catalytic cycle, interference, validation, and some other aspects related to TPI assessment. Nanomaterials are involved in the processes of immobilization, electron transfer, signal formation, and amplification, and they improve the performance of PO-based biosensors. Possible strategies for reducing interference in PO-based biosensors are discussed, namely the removal of ascorbic acid and the use of highly purified enzymes.
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21
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Benatti ALT, Polizeli MDLTDM. Lignocellulolytic Biocatalysts: The Main Players Involved in Multiple Biotechnological Processes for Biomass Valorization. Microorganisms 2023; 11:microorganisms11010162. [PMID: 36677454 PMCID: PMC9864444 DOI: 10.3390/microorganisms11010162] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/11/2022] [Accepted: 12/26/2022] [Indexed: 01/10/2023] Open
Abstract
Human population growth, industrialization, and globalization have caused several pressures on the planet's natural resources, culminating in the severe climate and environmental crisis which we are facing. Aiming to remedy and mitigate the impact of human activities on the environment, the use of lignocellulolytic enzymes for biofuel production, food, bioremediation, and other various industries, is presented as a more sustainable alternative. These enzymes are characterized as a group of enzymes capable of breaking down lignocellulosic biomass into its different monomer units, making it accessible for bioconversion into various products and applications in the most diverse industries. Among all the organisms that produce lignocellulolytic enzymes, microorganisms are seen as the primary sources for obtaining them. Therefore, this review proposes to discuss the fundamental aspects of the enzymes forming lignocellulolytic systems and the main microorganisms used to obtain them. In addition, different possible industrial applications for these enzymes will be discussed, as well as information about their production modes and considerations about recent advances and future perspectives in research in pursuit of expanding lignocellulolytic enzyme uses at an industrial scale.
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22
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Rodrigues AF, da Silva AF, da Silva FL, dos Santos KM, de Oliveira MP, Nobre MM, Catumba BD, Sales MB, Silva AR, Braz AKS, Cavalcante AL, Alexandre JY, Junior PG, Valério RB, de Castro Bizerra V, do Santos JC. A scientometric analysis of research progress and trends in the design of laccase biocatalysts for the decolorization of synthetic dyes. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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23
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Puspita K, Chiari W, Abdulmadjid SN, Idroes R, Iqhrammullah M. Four Decades of Laccase Research for Wastewater Treatment: Insights from Bibliometric Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:308. [PMID: 36612634 PMCID: PMC9819511 DOI: 10.3390/ijerph20010308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Increasing trends of environmental pollution and emerging contaminants from anthropogenic activities have urged researchers to develop innovative strategies in wastewater management, including those using the biocatalyst laccase (EC 1.10.3.2). Laccase works effectively against a variety of substrates ranging from phenolic to non-phenolic compounds which only require molecular oxygen to be later reduced to H2O as the final product. In this study, we performed a bibliometric analysis on the metadata of literature acquired through the Scopus database (24 October 2022) with keyword combination "Laccase" AND "Pollutant" OR "Wastewater". The included publications were filtered based on year of publication (1978-2022), types of articles (original research articles and review articles) and language (English). The metadata was then exported in a CSV (.csv) file and visualized on VosViewer software. A total of 1865 publications were identified, 90.9% of which were original research articles and the remaining 9.1% were review articles. Most of the authors were from China (n = 416; 22.3%) and India (n = 276; 14.79%). In the case of subject area, 'Environmental Science' emerged with the highest published documents (n = 1053; 56.46%). The identified papers mostly cover laccase activity in degrading pollutants, and chitosan, which can be exploited for the immobilization. We encourage more research on laccase-assisted wastewater treatment, especially in terms of collaborations among organizations.
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Affiliation(s)
- Kana Puspita
- Department of Chemistry Education, Faculty of Education and Teacher Training, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Williams Chiari
- Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Innovative Sustainability Lab, PT. Biham Riset dan Edukasi, Banda Aceh 23243, Indonesia
| | - Syahrun N. Abdulmadjid
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Rinaldi Idroes
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Muhammad Iqhrammullah
- Innovative Sustainability Lab, PT. Biham Riset dan Edukasi, Banda Aceh 23243, Indonesia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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Trivedi A, Vishwakarma A, Saawarn B, Mahanty B, Hait S. Fungal biotechnology for urban mining of metals from waste printed circuit boards: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 323:116133. [PMID: 36099867 DOI: 10.1016/j.jenvman.2022.116133] [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: 06/25/2022] [Revised: 08/20/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
Rapid surge in electronic waste (e-waste) and its unscientific handling has an adverse impact on humans and the environment. Waste printed circuit board (WPCB), an integrated component of e-waste, has a high metallic content that includes both toxic and precious metals. Therefore, metal recovery is essential not just to avoid environmental degradation but also for economic growth. The current literature analysis focuses on one such eco-friendly approach, known as fungal biotechnology, for extracting metals from WPCBs. Among diverse bioleaching agents, fungi have shown promising metal extraction efficiency (Al: 65-96%; Co: 45-90%; Cu: 34-100%; Ni: 8-95%; Mn: 70-95%; Pb: 27-95%; Zn: 54-99%) and the ability to work in a wide pH range. However, in terms of metal recovery from WPCBs, fungal bioleaching has been less explored. This review, thus, assesses the fungal biotechnology for metal extraction from WPCBs and discusses the associated mechanism and kinetics involved. Different process parameters affecting the fungal bioleaching have also been discussed briefly. The review highlights that, while this process has enough potential, some associated drawbacks hinder its practical applicability on an industrial scale. Lastly, some suggestions for scaling up and reducing the cost of the process have been made, which need to be addressed.
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Affiliation(s)
- Amber Trivedi
- Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Bihar, 801 106, India
| | - Anusha Vishwakarma
- Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Bihar, 801 106, India
| | - Bhavini Saawarn
- Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Bihar, 801 106, India
| | - Byomkesh Mahanty
- Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Bihar, 801 106, India
| | - Subrata Hait
- Department of Civil and Environmental Engineering, Indian Institute of Technology Patna, Bihar, 801 106, India.
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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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26
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Khatami SH, Vakili O, Movahedpour A, Ghesmati Z, Ghasemi H, Taheri-Anganeh M. Laccase: Various types and applications. Biotechnol Appl Biochem 2022; 69:2658-2672. [PMID: 34997643 DOI: 10.1002/bab.2313] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 01/03/2022] [Indexed: 12/27/2022]
Abstract
Laccase belongs to the polyphenol oxidase family and is very important in removing environmental pollutants due to its structural and functional properties. Recently, the ability of laccase to oxidize phenolic and nonphenolic substances has been considered by many researchers. This enzyme's application scope includes a broad range of chemical processes and industrial usages, such as bioremediation, nanobiotechnology, woodworking industries, bleaching of paper pulp, dyeing in the textile industry, biotechnological uses in food industries, biorefining, detoxification from wastewater, production of organic matter from phenolic and amine substrates, and biofuels. Although filamentous fungi produce large amounts of laccase, high-yield industrial-scale production of laccase is still faced with many problems. At present, researchers are trying to increase the efficiency and productivity and reduce the final price of laccase by finding suitable microorganisms and improving the process of production and purification of laccase. This article reviews the introduction of laccase, its properties, production processes, and the effect of various factors on the enzyme's stability and activity, and some of its applications in various industries.
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Affiliation(s)
- Seyyed Hossein Khatami
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Omid Vakili
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Zeinab Ghesmati
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mortaza Taheri-Anganeh
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
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27
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Zhang A, Hou Y, Wang Q, Wang Y. Characteristics and polyethylene biodegradation function of a novel cold-adapted bacterial laccase from Antarctic sea ice psychrophile Psychrobacter sp. NJ228. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129656. [PMID: 36104922 DOI: 10.1016/j.jhazmat.2022.129656] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/15/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Biotreatment of polyethylene (PE) waste is an emerging topic in environmental remediation; in particular, the degrading enzymes requires further exploration. This study described a novel cold-adapted laccase (PsLAC) from an Antarctic psychrophile and characterized its PE-degradation ability. Homology modeling revealed that PsLAC possessed a typical bacterial laccase catalytic structure and unique cold adaptation structural characteristics such as few hydrogen bonds. Recombinant PsLAC (rPsLAC) retained 54.3% residual activity at 0 ℃ and presented increased Km values at low temperatures and a relatively high kcat value (42.65 s-1). Collectively, these factors help resist cold stress. rPsLAC possessed substantial salt tolerance at 1.5 M NaCl, with 119.80% activity, and Cu2+ enhanced its activity to 127.10%. PE-degradation experiments indicated that 13.2% weight was lost, and the water contact angle was decreased to 74.6°. Polar functional groups such as carbonyl and carboxyl groups on PE surface were detected in Fourier transform infrared spectroscopy; X-ray diffraction exhibited that crystallinity reduced by 25%. Enormous damage to PE surface and interior was observed via scanning electron microscopy. Overall, PsLAC, with its unique cold-adapted catalytic structure and biochemical characteristics, could supplement the diversity of sources and properties of bacterial laccases and ensure PE-degradation with a novel cold-adapted enzyme resource.
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Affiliation(s)
- Ailin Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yanhua Hou
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.
| | - Quanfu Wang
- School of Environment, Harbin Institute of Technology, Harbin 150090, China; School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, China.
| | - Yatong Wang
- School of Environment, Harbin Institute of Technology, Harbin 150090, China
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28
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Huang Y, Yang J. Kinetics and mechanisms for sulfamethoxazole transformation in the phenolic acid-laccase (Trametes versicolor) system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62941-62951. [PMID: 35445921 DOI: 10.1007/s11356-022-20281-3] [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: 01/13/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Oxidation of phenolic acids (PCs) by laccase could produce various kinds of reactive oxygen species (ROS), which is expected to have substantial impact on the transformation of antibiotics like sulfamethoxazole (SMX) in soil and aquatic environments. In this study, the formation of semiquinones radical (SQ●-), superoxide anion radical (O2●-), hydrogen peroxide (H2O2), hydroxyl radical (●OH), and singlet oxygen (1O2) in a laccase-gallic acid (GA) reaction system was confirmed. Meanwhile, GA would be transformed to its monomeric quinone and quinones of di- and tri-polymers. Transformation of SMX by laccase alone is negligible, while which was greatly enhanced in the presence of GA at the optimal pH of 5.5. The dissolved O2 was the requisite for transformation of SMX due to its fundamental role in the formation of SQ●-, the key species initializing the chain reactions for the generation of other ROS. The quenching experiments indicated O2●- and 1O2 were the main ROS responsible for SMX transformation. A total of thirteen products were proposed for the SMX transformation, with the pathways including the breaking of S-N bond, the cleavage of oxazole ring, electrophilic substitution, Michael addition, and condensation reactions. Moreover, the existence of electron-withdrawing substitution group on the benzene ring of PCs and less stability of SQ●- was believed to be favorable for the transformation of SMX. The results above expand our understanding on the role of oxidation of PCs by laccase in the SMX transformation in environments and are of significance in relation to use of laccase in dealing with SMX pollution.
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Affiliation(s)
- Yu Huang
- College of Resources & Environmental Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Jiewen Yang
- College of Resources & Environmental Sciences, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.
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29
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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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30
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Cen Q, Wu X, Cao L, Lu Y, Lu X, Chen J, Fu G, Liu Y, Ruan R. Green production of a yellow laccase by Coriolopsis gallica for phenolic pollutants removal. AMB Express 2022; 12:96. [PMID: 35841420 PMCID: PMC9288578 DOI: 10.1186/s13568-022-01434-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 07/05/2022] [Indexed: 11/12/2022] Open
Abstract
As a group of green biocatalysts, fungal laccases have aroused great interest in diverse biotechnological fields. Therein, yellow laccase has advantages over blue laccase in catalytic performance, but it is not common in the reported fungal laccases. Here, we report a yellow laccase from white-rot fungus Coriolopsis gallica NCULAC F1 about its production, purification, characterization, and application. Laccase production in the co-fermentation of pomelo peel and wheat bran reached the enzyme activity by 10,690 U/L after 5 days with a 13.58-time increase. After three steps of purification, laccase increased the specific activity from 30.78 to 188.79 U/mg protein with an activity recovery of 45.64%. The purified C. gallica laccase (CGLac) showed a molecular mass of about 57 kDa. CGLac had a yellow color and no absorption peaks at 610 nm and 330 nm, suggesting that it’s a yellow laccase. CGLac exhibited stability towards temperature (40–60 °C) and neutral pH (6.0–8.0). Fe3+ and Mn2+ strongly stimulated CGLac activity by 162.56% and 226.05%, respectively. CGLac remained high activities when exposed to organic reagents and putative inhibitors. Additionally, CGLac contributed to 90.78%, 93.26%, and 99.66% removal of phenol, p-chlorophenol and bisphenol A after 120 min, respectively. In conclusion, a green efficient production strategy was introduced for fungal laccase, and the obtained CGLac presented great enzymatic properties and catalytic potential in the removal of phenolic pollutants. Pomelo peels and wheat bran are great nutritional sources and laccase inducers. CGLac showed the spectral characteristic of yellow laccase. CGLac had great stability and catalytic ability for phenolic pollutants removal.
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Affiliation(s)
- Qingjing Cen
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Xiaodan Wu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China. .,International Institute of Food Innovation, Nanchang University, Nanchang, 330047, Jiangxi, China.
| | - Leipeng Cao
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Yanjuan Lu
- Beijing Fairyland Environmental Technology CO., LTD, Beijing, 100096, China
| | - Xuan Lu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Jianwen Chen
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Guiming Fu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China.,International Institute of Food Innovation, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, Engineering Research Center for Biomass Conversion of Ministry of Education, Nanchang University, Nanchang, 330047, Jiangxi, China
| | - Roger Ruan
- Department of Bioproducts and Biosystems Engineering, Center for Biorefining, University of Minnesota, St. Paul, MN, 55108, USA
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Impact of Antibiotics as Waste, Physical, Chemical, and Enzymatical Degradation: Use of Laccases. Molecules 2022; 27:molecules27144436. [PMID: 35889311 PMCID: PMC9319608 DOI: 10.3390/molecules27144436] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/27/2022] [Accepted: 07/05/2022] [Indexed: 11/16/2022] Open
Abstract
The first traces of Tetracycline (TE) were detected in human skeletons from Sudan and Egypt, finding that it may be related to the diet of the time, the use of some dyes, and the use of soils loaded with microorganisms, such as Streptomyces spp., among other microorganisms capable of producing antibiotics. However, most people only recognise authors dating between 1904 and 1940, such as Ehrlich, Domagk, and Fleming. Antibiotics are the therapeutic option for countless infections treatment; unfortunately, they are the second most common group of drugs in wastewaters worldwide due to failures in industrial waste treatments (pharmaceutics, hospitals, senior residences) and their irrational use in humans and animals. The main antibiotics problem lies in delivered and non-prescribed human use, use in livestock as growth promoters, and crop cultivation as biocides (regulated activities that have not complied in some places). This practice has led to the toxicity of the environment as antibiotics generate eutrophication, water pollution, nutrient imbalance, and press antibiotic resistance. In addition, the removal of antibiotics is not a required process in global wastewater treatment standards. This review aims to raise awareness of the negative impact of antibiotics as residues and physical, chemical, and biological treatments for their degradation. We discuss the high cost of physical and chemical treatments, the risk of using chemicals that worsen the situation, and the fact that each antibiotic class can be transformed differently with each of these treatments and generate new compounds that could be more toxic than the original ones; also, we discuss the use of enzymes for antibiotic degradation, with emphasis on laccases.
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Li S, Sun K, Latif A, Si Y, Gao Y, Huang Q. Insights into the Applications of Extracellular Laccase-Aided Humification in Livestock Manure Composting. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:7412-7425. [PMID: 35638921 DOI: 10.1021/acs.est.1c08042] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Traditional composting is a well-suited biotechnology for on-farm management of livestock manure (LM) but still leads to the release of toxic micropollutants and imbalance of nutrients. One in situ exoenzyme-assisted composting has shown promise to ameliorate the agronomical quality of end products by improving humification and polymerization. The naturally occurring extracellular laccase from microorganisms belongs to a multicopper phenoloxidase, which is verified for its versatility to tackle micropollutants and conserve organics through the reactive radical-enabled decomposition and polymerization channels. Laccase possesses an indispensable relationship with humus formation during LM composting, but its potential applications for the harmless disposal and resource utilization of LM have until now been overlooked. Herein, we review the extracellular laccase-aided humification mechanism and its optimizing strategy to maintain enzyme activity and in situ production, highlighting the critical roles of laccase in treating micropollutants and preserving organics during LM composting. Particularly, the functional effects of the formed humification products by laccase-amended composting on plant growth are also discussed. Finally, the future perspectives and outstanding questions are summarized. This critical review provides fundamental insights into laccase-boosted humification that ameliorates the quality of end products in LM composting, which is beneficial to guide and advance the practical applications of exoenzyme in humification remediation, the carbon cycle, and agriculture protection.
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Affiliation(s)
- Shunyao Li
- Laboratory of Wetland Protection and Ecological Restoration, Anhui University, Hefei 230601, Anhui, China
| | - Kai Sun
- College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Abdul Latif
- College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Youbin Si
- College of Resources and Environment, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Yanzheng Gao
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Qingguo Huang
- Department of Crop and Soil Sciences, University of Georgia, Griffin, Georgia 30223, United States
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Cardullo N, Muccilli V, Tringali C. Laccase-mediated synthesis of bioactive natural products and their analogues. RSC Chem Biol 2022; 3:614-647. [PMID: 35755186 PMCID: PMC9175115 DOI: 10.1039/d1cb00259g] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 04/14/2022] [Indexed: 11/21/2022] Open
Abstract
Laccases are a class of multicopper oxidases that catalyse the one-electron oxidation of four equivalents of a reducing substrate, with the concomitant four-electron reduction of dioxygen to water. Typically, they catalyse many anabolic reactions, in which mostly phenolic metabolites were subjected to oxidative coupling. Alternatively, laccases catalyse the degradation or modification of biopolymers like lignin in catabolic processes. In recent years, laccases have proved valuable and green biocatalysts for synthesising compounds with therapeutic value, including antitumor, antibiotic, antimicrobial, and antioxidant agents. Further up to date applications include oxidative depolymerisation of lignin to gain new biomaterials and bioremediation processes of industrial waste. This review summarizes selected examples from the last decade's literature about the laccase-mediated synthesis of biologically active natural products and their analogues; these will include lignans and neolignans, dimeric stilbenoids, biflavonoids, biaryls and other compounds of potential interest for the pharmaceutical industry. In addition, a short section about applications of laccases in natural polymer modification has been included.
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Affiliation(s)
- Nunzio Cardullo
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania V.le A. Doria 6 95125-Catania Italy +39-095-580138 +39-095-7385041 +39-095-7385025
| | - Vera Muccilli
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania V.le A. Doria 6 95125-Catania Italy +39-095-580138 +39-095-7385041 +39-095-7385025
| | - Corrado Tringali
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania V.le A. Doria 6 95125-Catania Italy +39-095-580138 +39-095-7385041 +39-095-7385025
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Zofair SFF, Ahmad S, Hashmi MA, Khan SH, Khan MA, Younus H. Catalytic roles, immobilization and management of recalcitrant environmental pollutants by laccases: Significance in sustainable green chemistry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 309:114676. [PMID: 35151142 DOI: 10.1016/j.jenvman.2022.114676] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/08/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
We are facing a high risk of exposure to emerging contaminants and increasing environmental pollution with the concomitant growth of industries. Persistence of these pollutants is a major concern to the ecosystem. Laccases, also known as "green catalysts" are multi-copper oxidases which offers an eco-friendly solution for the degradation of these hazardous pollutants to less or non-toxic compounds. Although various other biological methods exist for the treatment of pollutants, the fact that laccases catalyze the oxidation of broad range of substrates in the presence of molecular oxygen without any additional cofactor and releases water as the by-product makes them exceptional. They have a good possibility of utilization in various industries, especially for the purpose of bioremediation. Besides this, they have also been used in medical/health care, food industry, bio-bleaching, wine stabilization, organic synthesis and biosensors. This review covers the catalytic behaviour of laccases, their immobilization strategies, potential applications in bioremediation of recalcitrant environmental pollutants and their engineering. It provides a comprehensive summary of most factors to consider while working with laccases in an industrial setting. It compares the benefits and drawbacks of the current techniques. Immobilization and mediators, two of the most significant aspects in working with laccases, have been meticulously discussed.
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Affiliation(s)
- Syeda Fauzia Farheen Zofair
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Sumbul Ahmad
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Md Amiruddin Hashmi
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Shaheer Hasan Khan
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India
| | - Masood Alam Khan
- Department of Basic Health Sciences, College of Applied Medical Sciences, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Hina Younus
- Enzymology Laboratory, Interdisciplinary Biotechnology Unit, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, 202002, India.
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Chang F, Wu L, Xiong Z, Yang Y, Xia X, Wu Q, Ge C, Chen H. Light-induced expression of a novel marine laccase in Escherichia coli from Marinomonas profundimaris and its application in synthetic dye decolorization. Protein Expr Purif 2022; 197:106108. [DOI: 10.1016/j.pep.2022.106108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022]
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Perkins ML, Schuetz M, Unda F, Chen KT, Bally MB, Kulkarni JA, Yan Y, Pico J, Castellarin SD, Mansfield SD, Samuels AL. Monolignol export by diffusion down a polymerization-induced concentration gradient. THE PLANT CELL 2022; 34:2080-2095. [PMID: 35167693 PMCID: PMC9048961 DOI: 10.1093/plcell/koac051] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 02/06/2022] [Indexed: 05/25/2023]
Abstract
Lignin, the second most abundant biopolymer, is a promising renewable energy source and chemical feedstock. A key element of lignin biosynthesis is unknown: how do lignin precursors (monolignols) get from inside the cell out to the cell wall where they are polymerized? Modeling indicates that monolignols can passively diffuse through lipid bilayers, but this has not been tested experimentally. We demonstrate significant monolignol diffusion occurs when laccases, which consume monolignols, are present on one side of the membrane. We hypothesize that lignin polymerization could deplete monomers in the wall, creating a concentration gradient driving monolignol diffusion. We developed a two-photon microscopy approach to visualize lignifying Arabidopsis thaliana root cells. Laccase mutants with reduced ability to form lignin polymer in the wall accumulated monolignols inside cells. In contrast, active transport inhibitors did not decrease lignin in the wall and scant intracellular phenolics were observed. Synthetic liposomes were engineered to encapsulate laccases, and monolignols crossed these pure lipid bilayers to form polymer within. A sink-driven diffusion mechanism explains why it has been difficult to identify genes encoding monolignol transporters and why the export of varied phenylpropanoids occurs without specificity. It also highlights an important role for cell wall oxidative enzymes in monolignol export.
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Affiliation(s)
- Mendel L Perkins
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Mathias Schuetz
- Department of Botany, University of British Columbia, Vancouver, BC, Canada
| | - Faride Unda
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
| | - Kent T Chen
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Marcel B Bally
- Department of Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Jayesh A Kulkarni
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
| | - Yifan Yan
- Wine Research Centre, University of British Columbia, Vancouver, BC, Canada
| | - Joana Pico
- Wine Research Centre, University of British Columbia, Vancouver, BC, Canada
| | | | - Shawn D Mansfield
- Department of Wood Science, University of British Columbia, Vancouver, BC, Canada
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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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Chopra NK, Sondhi S. Cloning, expression and characterization of laccase from Bacillus licheniformis NS2324 in E. coli application in dye decolorization. Int J Biol Macromol 2022; 206:1003-1011. [PMID: 35337908 DOI: 10.1016/j.ijbiomac.2022.03.104] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 11/26/2022]
Abstract
Laccase gene from Bacillus licheniformis NS2324 was cloned and expressed in E. coli by using pUC 18 as cloning vector and pet 15b as expression vector. The purified recombinant laccase (rLacNS2324) showed a molecular mass of 66 KDa. The optimum pH and temperature for rLacNS2324 was found to be pH 8 and 40 °C respectively. The half life of rLacNS2324 at pH 7, 8 and 9 is 24 h. The half life of laccase at 45 °C is 8 h. Laccase activity was increased in the presence of Cu2+ (135.3%), Mn2+ (283.76%), and Co2+ (199.96%) at 5 mM of concentration, but inhibited to 17.01% in the presence of 5 mM Zn2+ ions. rLacNS2324 was found tolerant to NaCl and NaI. Among the inhibitors, it was found to be tolerant to EDTA, however, its activity was inhibited in the presence of sodium azide, dithiothreitol and β-mercapethanol. rLacNS2324 was able to decolorize a bromophenol blue by 85% and phenol red by 75% in 1 h without any mediator. Methylene blue was almost completely degraded (99.28% decolorization) by 10 IUml-1 of laccase at 40 °C, pH 8.0 and in time 4 h. Overall rLacNS2324 showed ability to be used industrially to decolorize dyes in an eco-friendly and cost effective way.
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Affiliation(s)
- Navleen Kaur Chopra
- Department of Biotechnology, I.K. Gujral Punjab Technical University, Kapurthala 144603, Punjab, India
| | - Sonica Sondhi
- Department of Biotechnology, Chandigarh Group of Colleges, Landran, 140307 Mohali, Punjab, India.
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Kishimoto T, Hiyama A, Toda H, Urabe D. Effect of pH on the Dehydrogenative Polymerization of Monolignols by Laccases from Trametes versicolor and Rhus vernicifera. ACS OMEGA 2022; 7:9846-9852. [PMID: 35350311 PMCID: PMC8945161 DOI: 10.1021/acsomega.2c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Dehydrogenative polymerization of coniferyl alcohol (CA) and sinapyl alcohol (SA) was conducted using commercial laccases, fungal laccase from Trametes versicolor (LacT) and plant laccase from Rhus vernicifera (LacR), at pH 4-7 to investigate how the enzymatic polymerization of monolignols differs between these two laccase systems. The enzyme activity of LacT was the highest at pH 4, whereas that of LacR was the highest at pH 7. A dehydrogenation polymer (DHP) was obtained only from CA in both laccase systems, although the consumption rate of SA was higher than that of CA. 1H-13C HSQC NMR analysis showed that DHPs obtained using LacT and LacR contained lignin substructures, including β-O-4, β-O-4/α-O-4, β-β, and β-5 structures. At pH 4.5, the β-O-4 structure was preferentially formed over the β-O-4/α-O-4 structure, whereas at pH 6.5, the β-O-4/α-O-4 structure was preferred. The pH of the reaction solution was more vital to affect the chemical structure of DHP than the origin of laccases.
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40
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Kong DX, Ma QY, Yang L, Xie QY, Deng CY, Dai HF, Hua Y, Zhao YX. Two lanostane triterpenoids with α-glucosidase inhibitory activity from the fruiting bodies of Ganoderma weberianum. Nat Prod Res 2022:1-7. [PMID: 35289692 DOI: 10.1080/14786419.2022.2050911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new oxygenated lanostane-type triterpenoid, 20S,24S-epoxy-lanosta-7,9(11)-dien-3β,15α,25R,26-tetraol (1), together with three known compounds (2-4) were isolated from the fruiting bodies of Ganoderma weberianum. Extensive NMR spectrometry and HRESIMS analysis, as well as NMR and ECD calculations elucidated the structure of the new compound. 27-nor-3β-hydroxylanosta-7,9(11),23E-trien-25-one (2) showed superior α-glucosidase inhibitory activity with IC50 value of 122.1 μM to that of positive control acarbose (304.6 μM).
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Affiliation(s)
- De Xian Kong
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, PR China
| | - Qing Yun Ma
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, PR China
| | - Li Yang
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, PR China
| | - Qing Yi Xie
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, PR China.,Hainan Institute for Tropical Agricultural Resources, CATAS, Haikou, PR China
| | - Chun Ying Deng
- Guizhou institute of biology, Guizhou Academy of Sciences, Guiyang, PR China
| | - Hao Fu Dai
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, PR China
| | - Yan Hua
- Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, Kunming, PR China
| | - You Xing Zhao
- Haikou Key Laboratory for Research and Utilization of Tropical Natural Products, Institute of Tropical Bioscience and Biotechnology, CATAS, Haikou, PR China
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Zovo K, Pupart H, Van Wieren A, Gillilan RE, Huang Q, Majumdar S, Lukk T. Substitution of the Methionine Axial Ligand of the T1 Copper for the Fungal-like Phenylalanine Ligand (M298F) Causes Local Structural Perturbations that Lead to Thermal Instability and Reduced Catalytic Efficiency of the Small Laccase from Streptomyces coelicolor A3(2). ACS OMEGA 2022; 7:6184-6194. [PMID: 35224382 PMCID: PMC8867573 DOI: 10.1021/acsomega.1c06668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
Many industrial processes operate at elevated temperatures or within broad pH and salinity ranges. However, the utilization of enzymes to carry out biocatalysis in such processes is often impractical or even impossible. Laccases (EC 1.10.3.2), which constitute a large family of multicopper oxidases, have long been used in the industrial setting. Although fungal laccases are in many respects considered superior to their bacterial counterparts, the bacterial laccases have been receiving greater attention recently. Albeit lower in redox potential than fungal laccases, bacterial laccases are commonly thermally more stable, act within broader pH ranges, do not contain posttranslational modifications, and could therefore serve as a high potential scaffold for directed evolution for the production of enzymes with enhanced properties. Several examples focusing on the axial ligand mutations of the T1 copper site have been published in the past. However, structural evidence on the local and global changes induced by those mutations have thus far been of computational nature only. In this study, we set out to structurally and kinetically characterize a few of the most commonly reported axial ligand mutations of a bacterial small laccase (SLAC) from Streptomyces coelicolor. While one of the mutations (Met to Leu) equips the enzyme with better thermal stability, the other (Met to Phe) induces an opposite effect. These mutations cause local structural rearrangement of the T1 site as demonstrated by X-ray crystallography. Our analysis confirms past findings that for SLACs, single point mutations that change the identity of the axial ligand of the T1 copper are not enough to provide a substantial increase in the catalytic efficiency but can in some cases have a detrimental effect on the enzyme's thermal stability parameters instead.
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Affiliation(s)
- Kairit Zovo
- Department
of Chemistry and Biotechnology, Tallinn
University of Technology, Akadeemia tee 15, Tallinn 12618, Estonia
| | - Hegne Pupart
- Department
of Chemistry and Biotechnology, Tallinn
University of Technology, Akadeemia tee 15, Tallinn 12618, Estonia
| | - Arie Van Wieren
- Department
of Chemistry, Biochemistry, Physics and Engineering, Indiana University of Pennsylvania, Indiana, Pennsylvania 15705, United States
| | - Richard E. Gillilan
- MacCHESS
(Macromolecular Diffraction Facility at CHESS), Cornell University, 161 Synchrotron Drive, Ithaca, New York 14850, United
States
| | - Qingqiu Huang
- MacCHESS
(Macromolecular Diffraction Facility at CHESS), Cornell University, 161 Synchrotron Drive, Ithaca, New York 14850, United
States
| | - Sudipta Majumdar
- Department
of Chemistry, Biochemistry, Physics and Engineering, Indiana University of Pennsylvania, Indiana, Pennsylvania 15705, United States
| | - Tiit Lukk
- Department
of Chemistry and Biotechnology, Tallinn
University of Technology, Akadeemia tee 15, Tallinn 12618, Estonia
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Wan F, Zhang L, Tan M, Wang X, Wang GL, Qi M, Liu B, Gao J, Pan Y, Wang Y. Genome-wide identification and characterization of laccase family members in eggplant ( Solanum melongena L.). PeerJ 2022; 10:e12922. [PMID: 35223206 PMCID: PMC8868016 DOI: 10.7717/peerj.12922] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 01/20/2022] [Indexed: 01/11/2023] Open
Abstract
Laccase, as a copper-containing polyphenol oxidase, primarily functions in the process of lignin, anthocyanin biosynthesis, and various abiotic/biotic stresses. In this study, forty-eight laccase members were identified in the eggplant genome. Only forty-two laccase genes from eggplant (SmLACs) were anchored unevenly in 12 chromosomes, the other six SmLACs were mapped on unanchored scaffolds. Phylogenetic analysis indicated that only twenty-five SmLACs were divided into six different groups on the basis of groups reported in Arabidopsis. Gene structure analysis revealed that the number of exons ranged from one to 13. Motif analysis revealed that SmLACs included six conserved motifs. In aspects of gene duplication analysis, twenty-one SmLACs were collinear with LAC genes from Arabidopsis, tomato or rice. Cis-regulatory elements analysis indicated many SmLACs may be involved in eggplant morphogenesis, flavonoid biosynthesis, diverse stresses and growth/development processes. Expression analysis further confirmed that a few SmLACs may function in vegetative and reproductive organs at different developmental stages and also in response to one or multiple stresses. This study would help to further understand and enrich the physiological function of the SmLAC gene family in eggplant, and may provide high-quality genetic resources for eggplant genetics and breeding.
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Affiliation(s)
- Faxiang Wan
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Linqing Zhang
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Mengying Tan
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Xiaohua Wang
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Guang-Long Wang
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Mengru Qi
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Bingxin Liu
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Jun Gao
- Faculty of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, Jiangsu, The People’s Republic of China
| | - Yu Pan
- College of Horticulture and Landscape Architechture, Southwest University, Chongqing, The People’s Republic of China
| | - Yongqing Wang
- The Institute of Vegetable and Flower Research, Chongqing Academy of Agricultural Science, Chongqing, The People’s Republic of China
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Zhang X, Xu H, Su H, Yang X, Sun T, Lu X, Shi F, Duan H, Liu X, Ling Y. Design, Synthesis, and Biological Activity of Novel Fungicides Containing a 1,2,3,4-Tetrahydroquinoline Scaffold and Acting as Laccase Inhibitors. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:1776-1787. [PMID: 35128930 DOI: 10.1021/acs.jafc.1c06595] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Laccase is a novel target for fungicides. We previously developed a new fungicide, 4-chlorocinnamaldehyde thiosemicarbazide (PMDD-5Y), as a laccase inhibitor. The introduction of active groups of natural products into the framework of a pesticide molecular structure is an effective method for discovering active lead compounds, and it has applications in the discovery of new pesticides. In this work, PMDD-5Y was selected as a lead compound, and we designed and synthesized a series of novel sulfonyl hydrazide derivatives containing the natural product scaffold 1,2,3,4-tetrahydroquinoline. The new compounds had antifungal activities against several fungi, especially Valsa mali and Sclerotinia sclerotiorum. One compound (4bl) displayed very good in vitro activity against S. sclerotiorum and V. mali, with EC50 values of 3.32 and 2.78 μg/mL, respectively. The results of an enzyme activity assay showed that 4bh had the best inhibitory activity against laccase, with an EC50 value of 14.85 μg/mL. This was more active than the lead compound PMDD-5Y and the positive control cysteine. Using a molecular docking method, we studied the binding mode of the title compounds with laccase. The structural features of these new laccase inhibitors as fungicides will advance research and impact the field of discovering more potent fungicides to control diseases in agriculture.
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Affiliation(s)
- Xiaoming Zhang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Huan Xu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Huifei Su
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xinling Yang
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Tengda Sun
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xingxing Lu
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Fasheng Shi
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Hongxia Duan
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Xili Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, Shaanxi 712110, China
| | - Yun Ling
- Innovation Center of Pesticide Research, Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
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44
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Robert B, Chenthamara D, Subramaniam S. Fabrication and biomedical applications of Arabinoxylan, Pectin, Chitosan, Soy protein, and Silk fibroin hydrogels via laccase - ferulic acid redox chemistry. Int J Biol Macromol 2021; 201:539-556. [PMID: 34973987 DOI: 10.1016/j.ijbiomac.2021.12.103] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/23/2021] [Accepted: 12/17/2021] [Indexed: 12/11/2022]
Abstract
The unique physiochemical properties and the porous network architecture of hydrogel seek the attention to be explored in broad range of fields. In the last decade, numerous studies on the development of enzymatically cross-linked hydrogels have been elucidated. Implementing enzyme based cross-linking for fabrication of biomaterials over other crosslinking methods harbor various advantages, especially hydrogels designed using laccase exhibits mild reaction environment, high cross-linking efficiency and less toxicity. To our knowledge this is the first report reviewing the formulation of laccase mediated cross-linking for hydrogel preparation. Here, laccase catalyzed synthesis of hydrogel using polysaccharide viz. arabinoxylan, sugar beet pectin, galactomannan, chitosan etc. and proteins namely soy protein, gelatin, silk fibroin were discussed on highlighting their mechanical properties and its possible field of application. We have summarized the role of phenolic acids in laccase mediated crosslinking particularly ferulic acid which is a component of lignocellulose, serving cell rigidity via crosslinkage. The review also discusses on various biomedical applications such as controlled protein release, tissue engineering, and wound healing. It is anticipated that this review will give a detailed information on different laccase mediated reaction strategies that can be applied for the synthesis of various new biomaterials with tailor made properties.
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Affiliation(s)
- Becky Robert
- Biomaterials and Bioprocess Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore 641046, India
| | - Dhrisya Chenthamara
- Biomaterials and Bioprocess Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore 641046, India
| | - Sadhasivam Subramaniam
- Biomaterials and Bioprocess Laboratory, Department of Microbial Biotechnology, Bharathiar University, Coimbatore 641046, India; Department of Extension and Career Guidance, Bharathiar University, Coimbatore 641046, India.
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45
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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: 25] [Impact Index Per Article: 8.3] [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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Evolutionary assembly of cooperating cell types in an animal chemical defense system. Cell 2021; 184:6138-6156.e28. [PMID: 34890552 DOI: 10.1016/j.cell.2021.11.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/29/2021] [Accepted: 11/10/2021] [Indexed: 12/21/2022]
Abstract
How the functions of multicellular organs emerge from the underlying evolution of cell types is poorly understood. We deconstructed evolution of an organ novelty: a rove beetle gland that secretes a defensive cocktail. We show how gland function arose via assembly of two cell types that manufacture distinct compounds. One cell type, comprising a chemical reservoir within the abdomen, produces alkane and ester compounds. We demonstrate that this cell type is a hybrid of cuticle cells and ancient pheromone and adipocyte-like cells, executing its function via a mosaic of enzymes from each parental cell type. The second cell type synthesizes benzoquinones using a chimera of conserved cellular energy and cuticle formation pathways. We show that evolution of each cell type was shaped by coevolution between the two cell types, yielding a potent secretion that confers adaptive value. Our findings illustrate how cooperation between cell types arises, generating new, organ-level behaviors.
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47
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Hürmüzlü R, Okur M, Saraçoğlu N. Immobilization of Trametes versicolor laccase on chitosan/halloysite as a biocatalyst in the Remazol Red RR dye. Int J Biol Macromol 2021; 192:331-341. [PMID: 34627846 DOI: 10.1016/j.ijbiomac.2021.09.213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/22/2021] [Accepted: 09/29/2021] [Indexed: 12/24/2022]
Abstract
In this study, the laccase obtained from Trametes versicolor was immobilized onto the chitosan(CTS)/halloysite (HNT) beads. In the immobilization step, the effects of chitosan (1-3% w/v), halloysite (0-2% w/v), glutaraldehyde (0.5-1.5% v/v) and enzyme concentrations (1-3%) on loading and immobilization efficiency were investigated. SEM, FT-IR, XRD, TGA and XPS analyses were performed to examine the structure of beads. In addition, the effects of parameters such as pH (4-10), temperature (25-55 °C), storage life on the activity of free and immobilized laccase were also investigated. The activities of free and immobilized laccase preserved 23% and 56% of its initial activity at the end of 59 days of storage. The effects of mediators such as 2.2-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), 1-Hydroxybenzotriazole hydrate (HBT), 2,2,6,6-Tetramethyl-1-piperidinyloxy (TEMPO) and violuric acid (VLA) on the dye removal efficiency were investigated. Reusability of the CTS/HNT/Lac in the presence of HBT and VLA mediators, which enable the highest dye removal, was tested. After 15 cycles, 42% and 54% dye removal were achieved with the CTS/HNT/Lac in the medium containing HBT and VLA, and 42% and 49% of the activity is preserved, respectively. This study showed that CTS/HNT/Lac can be used repeatedly for Remazol Red RR dye removal.
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Affiliation(s)
- Rüya Hürmüzlü
- Gazi University, Department of Chemical Engineering, 06570 Ankara, Turkey
| | - Mujgan Okur
- Gazi University, Department of Chemical Engineering, 06570 Ankara, Turkey.
| | - Nurdan Saraçoğlu
- Gazi University, Department of Chemical Engineering, 06570 Ankara, Turkey.
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48
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Maniak H, Talma M, Giurg M. Inhibitory Potential of New Phenolic Hydrazide-Hydrazones with a Decoy Substrate Fragment towards Laccase from a Phytopathogenic Fungus: SAR and Molecular Docking Studies. Int J Mol Sci 2021; 22:ijms222212307. [PMID: 34830189 PMCID: PMC8617976 DOI: 10.3390/ijms222212307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 01/22/2023] Open
Abstract
Laccase from pathogenic fungi participates in both the delignification and neutralization of phytoantibiotics. Furthermore, it interferes with the hormone signaling in plants and catalyzes melanization. Infections of these pathogens contribute to loss in forestry, agriculture, and horticulture. As there is still a need to expand knowledge on efficient defense strategies against phytopathogenic fungi, the present study aimed to reveal more information on the molecular mechanisms of laccase inhibition with natural and natural-like carboxylic acid semi-synthetic derivatives. A set of hydrazide-hydrazones derived from carboxylic acids, generally including electron-rich arene units that serve as a decoy substrate, was synthesized and tested with laccase from Trametes versicolor. The classic synthesis of the title inhibitors proceeded with good to almost quantitative yield. Ninety percent of the tested molecules were active in the range of KI = 8–233 µM and showed different types of action. Such magnitude of inhibition constants qualified the hydrazide-hydrazones as strong laccase inhibitors. Molecular docking studies supporting the experimental data explained the selected derivatives’ interactions with the enzyme. The results are promising in developing new potential antifungal agents mitigating the damage scale in the plant cultivation, gardening, and horticulture sectors.
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Affiliation(s)
- Halina Maniak
- Department of Micro, Nano and Bioprocess Engineering, Faculty of Chemistry, Wroclaw University of Science and Technology, Norwida 4/6, 50-373 Wrocław, Poland
- Correspondence: (H.M.); (M.G.); Tel.: +48-713203314 (H.M.); +48-713203616 (M.G.)
| | - Michał Talma
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland;
| | - Mirosław Giurg
- Department of Organic and Medicinal Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
- Correspondence: (H.M.); (M.G.); Tel.: +48-713203314 (H.M.); +48-713203616 (M.G.)
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49
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Agustin MB, de Carvalho DM, Lahtinen MH, Hilden K, Lundell T, Mikkonen KS. Laccase as a Tool in Building Advanced Lignin-Based Materials. CHEMSUSCHEM 2021; 14:4615-4635. [PMID: 34399033 PMCID: PMC8597079 DOI: 10.1002/cssc.202101169] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/09/2021] [Indexed: 05/22/2023]
Abstract
Lignin is an abundant natural feedstock that offers great potential as a renewable substitute for fossil-based resources. Its polyaromatic structure and unique properties have attracted significant research efforts. The advantages of an enzymatic over chemical or thermal approach to construct or deconstruct lignins are that it operates in mild conditions, requires less energy, and usually uses non-toxic chemicals. Laccase is a widely investigated oxidative enzyme that can catalyze the polymerization and depolymerization of lignin. Its dual nature causes a challenge in controlling the overall direction of lignin-laccase catalysis. In this Review, the factors that affect laccase-catalyzed lignin polymerization were summarized, evaluated, and compared to identify key features that favor lignin polymerization. In addition, a critical assessment of the conditions that enable production of novel lignin hybrids via laccase-catalyzed grafting was presented. To assess the industrial relevance of laccase-assisted lignin valorization, patented applications were surveyed and industrial challenges and opportunities were analyzed. Finally, our perspective in realizing the full potential of laccase in building lignin-based materials for advanced applications was deduced from analysis of the limitations governing laccase-assisted lignin polymerization and grafting.
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Affiliation(s)
- Melissa B. Agustin
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
| | - Danila Morais de Carvalho
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
| | - Maarit H. Lahtinen
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
| | - Kristiina Hilden
- Department of MicrobiologyFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
- Helsinki Institute of Sustainability Science (HELSUS)University of HelsinkiP.O. Box 6500014HelsinkiFinland
| | - Taina Lundell
- Department of MicrobiologyFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
- Helsinki Institute of Sustainability Science (HELSUS)University of HelsinkiP.O. Box 6500014HelsinkiFinland
| | - Kirsi S. Mikkonen
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of Helsinki00014HelsinkiFinland
- Helsinki Institute of Sustainability Science (HELSUS)University of HelsinkiP.O. Box 6500014HelsinkiFinland
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50
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Sharma N, Leung IKH. Characterisation and optimisation of a novel laccase from Sulfitobacter indolifex for the decolourisation of organic dyes. Int J Biol Macromol 2021; 190:574-584. [PMID: 34506861 DOI: 10.1016/j.ijbiomac.2021.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/19/2021] [Accepted: 09/01/2021] [Indexed: 11/25/2022]
Abstract
Laccases are multi‑copper oxidases that possess the potential for industrial wastewater treatments. In this study, a putative laccase from Sulfitobacter indolifex was recombinantly produced and characterised. The enzyme was found to be stable and active at low to ambient temperature and across a range of pH conditions. The ability of the putative bacterial laccase to catalyse the decolourisation of seven common industrial dyes was also examined. Our results showed that the putative laccase could efficiently decolourise Indigo Carmine, Coomassie Brilliant Blue R-250, Congo Red, Malachite Green and Alizarin in the presence of 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) as a redox mediator. Furthermore, the use of enzyme immobilisation technology to improve the operational stability and reusability of the putative laccase was also investigated. We found that immobilising the enzyme through the cross-linked enzyme aggregate method significantly improved its tolerance towards extreme pH as well as the presence of organic solvents. This work expands the arsenal of bacterial laccases available for the bioremediation of dye-containing wastewater.
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Affiliation(s)
- Nabangshu Sharma
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand
| | - Ivanhoe K H Leung
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand; Centre for Green Chemical Science, The University of Auckland, Private Bag 92019, Victoria Street West, Auckland 1142, New Zealand; School of Chemistry, The University of Melbourne, Parkville, VIC 3010, Australia; Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
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