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Sidar A, Voshol GP, El-Masoudi A, Vijgenboom E, Punt PJ. Streptomyces small laccase expressed in Aspergillus Niger as a new addition for the lignocellulose bioconversion toolbox. Fungal Biol Biotechnol 2024; 11:13. [PMID: 39223615 PMCID: PMC11368006 DOI: 10.1186/s40694-024-00181-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024] Open
Abstract
Laccases are multi-copper oxidases that are usually composed of three Cu-oxidase domains. Domains one and three house the copper binding sites, and the second domain is involved in forming a substrate-binding cleft. However, Streptomyces species are found to have small laccases (SLAC) that lack one of the three Cu-oxidase domains. This type of SLAC with interesting lignocellulose bioconversion activities has not been reported in Aspergillus niger. In our research, we explored the expression and engineering of the SLAC from Streptomyces leeuwenhoekii C34 in A. niger. Genes encoding two versions of the SLAC were expressed. One encoding the SLAC in its native form and a second encoding the SLAC fused to two N-terminal CBM1 domains. The latter is a configuration also known for specific yeast laccases. Both SLAC variants were functionally expressed in A. niger as shown by in vitro activity assays and proteome analysis. Laccase activity was also analyzed toward bioconversion of lignocellulosic rice straw. From this analysis it was clear that the SLAC activity improved the efficiency of saccharification of lignocellulosic biomass by cellulase enzyme cocktails.
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Affiliation(s)
- Andika Sidar
- Institute of Biology Leiden, Fungal Genetics and Biotechnology, Leiden University, 2333BE, Leiden, The Netherlands.
- Department of Food and Agricultural Product Technology, Gadjah Mada University, Yogyakarta, 55281, Indonesia.
| | - Gerben P Voshol
- Institute of Biology Leiden, Fungal Genetics and Biotechnology, Leiden University, 2333BE, Leiden, The Netherlands
- Genomescan, Leiden, 2333 BZ, The Netherlands
| | - Ahmed El-Masoudi
- Institute of Biology Leiden, Fungal Genetics and Biotechnology, Leiden University, 2333BE, Leiden, The Netherlands
| | - Erik Vijgenboom
- Institute of Biology Leiden, Fungal Genetics and Biotechnology, Leiden University, 2333BE, Leiden, The Netherlands
| | - Peter J Punt
- Institute of Biology Leiden, Fungal Genetics and Biotechnology, Leiden University, 2333BE, Leiden, The Netherlands.
- Ginkgo Bioworks NL, Zeist, 3704 HE, The Netherlands.
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2
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Lee YJ, Park S, Kim Y, Kim SH, Seo J. Facile synthetic method for peptoids bearing multiple azoles on side chains. Pept Sci (Hoboken) 2022. [DOI: 10.1002/pep2.24287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yen Jea Lee
- Department of Chemistry Gwangju Institute of Science and Technology Gwangju Republic of Korea
| | - Soyeon Park
- Department of Chemistry Gwangju Institute of Science and Technology Gwangju Republic of Korea
| | - Yujeong Kim
- Western Seoul Center Korea Basic Science Institute Seoul Republic of Korea
| | - Sun Hee Kim
- Western Seoul Center Korea Basic Science Institute Seoul Republic of Korea
- Department of Chemistry and Nano Science Ewha Womans University Seoul Republic of Korea
| | - Jiwon Seo
- Department of Chemistry Gwangju Institute of Science and Technology Gwangju Republic of Korea
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3
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Structural Properties, Genomic Distribution of Laccases from Streptomyces and Their Potential Applications. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.04.015] [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: 11/24/2022]
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4
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Salwan R, Kaur R, Sharma V. Genomic Organization of Streptomyces flavotricini NGL1 and Streptomyces erythrochromogenes HMS4 Reveals Differential Plant Beneficial Attributes and Laccase Production Capabilities. Mol Biotechnol 2021; 64:447-462. [PMID: 34782960 DOI: 10.1007/s12033-021-00424-6] [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: 09/20/2021] [Accepted: 11/02/2021] [Indexed: 11/24/2022]
Abstract
The genus Streptomyces has been explored in industrial sectors due to its endurance to environmental stresses, the production of a plethora of biomolecules, the biological remediation of soils, and alleviating plant stresses. The whole genome of NGL1 and HMS4 was sequenced due to the specific laccase activity against 2,6-dimethoxyphenol (2,6-DMP) and differential plant beneficial attributes. The deduced genome of 8.85 Mbp and 7.73 Mbp in size with a G+C content of 72.03% and 72.3% was obtained for NGL1 and HMS4, respectively. A total of 8438 and 7322 protein coding genes, 155 (130 tRNA, 25 rRNA) and 145 tRNA (121 tRNA, 24 rRNA) coding genes were predicted in NGL1 and HMS4, respectively. The comparative genomics of NGL1 and HMS4 showed 185 and 162 genes encoding for carbohydrate-active enzymes, respectively. The genomic ability of these strains to encode carbohydrate-active enzymes, laccase, and diversity of BGCs, along with plant beneficial attributes to suppress the plant pathogens can be used for several industrial and agricultural applications.
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Affiliation(s)
- Richa Salwan
- College of Horticulture and Forestry, Dr YS Parmar University of Horticulture & Forestry, Neri, Hamirpur, HP, 177 001, India.
| | - Randhir Kaur
- University Centre for Research and Development, Chandigarh University, Gharuan, Mohali, PB, 140 413, India
| | - Vivek Sharma
- University Centre for Research and Development, Chandigarh University, Gharuan, Mohali, PB, 140 413, India.
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5
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Qin X, Xin Y, Zou J, Su X, Wang X, Wang Y, Zhang J, Tu T, Yao B, Luo H, Huang H. Efficient Degradation of Aflatoxin B 1 and Zearalenone by Laccase-like Multicopper Oxidase from Streptomyces thermocarboxydus in the Presence of Mediators. Toxins (Basel) 2021; 13:754. [PMID: 34822538 PMCID: PMC8621583 DOI: 10.3390/toxins13110754] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/05/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
Multicopper oxidases (MCOs) are a diverse group of enzymes that could catalyze the oxidation of different xenobiotic compounds, with simultaneous reduction in oxygen to water. Aside from laccase, one member of the MCO superfamily has shown great potential in the biodegradation of mycotoxins; however, the mycotoxin degradation ability of other MCOs is uncertain. In this study, a novel MCO-encoding gene, StMCO, from Streptomyces thermocarboxydus, was identified, cloned, and heterologously expressed in Escherichia coli. The purified recombinant StMCO exhibited the characteristic blue color and bivalent copper ion-dependent enzyme activity. It was capable of oxidizing the model substrate ABTS, phenolic compound DMP, and azo dye RB5. Notably, StMCO could directly degrade aflatoxin B1 (AFB1) and zearalenone (ZEN) in the absence of mediators. Meanwhile, the presence of various lignin unit-derived natural mediators or ABTS could significantly accelerate the degradation of AFB1 and ZEN by StMCO. Furthermore, the biological toxicities of their corresponding degradation products, AFQ1 and 13-OH-ZEN-quinone, were remarkably decreased. Our findings suggested that efficient degradation of mycotoxins with mediators might be a common feature of the MCOs superfamily. In summary, the unique properties of MCOs make them good candidates for degrading multiple major mycotoxins in contaminated feed and food.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Huiying Luo
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Q.); (Y.X.); (J.Z.); (X.S.); (X.W.); (Y.W.); (J.Z.); (T.T.); (B.Y.)
| | - Huoqing Huang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (X.Q.); (Y.X.); (J.Z.); (X.S.); (X.W.); (Y.W.); (J.Z.); (T.T.); (B.Y.)
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6
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Paavola JL, Battistin U, Ogata CM, Georgiadis MM. Crystal structures of a dodecameric multicopper oxidase from Marinithermus hydrothermalis. ACTA CRYSTALLOGRAPHICA SECTION D-STRUCTURAL BIOLOGY 2021; 77:1336-1345. [PMID: 34605435 DOI: 10.1107/s205979832100944x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 09/10/2021] [Indexed: 11/10/2022]
Abstract
Multicopper oxidases (MCOs) represent a diverse family of enzymes that catalyze the oxidation of either an organic or a metal substrate with concomitant reduction of dioxygen to water. These enzymes contain variable numbers of cupredoxin domains, two, three or six per subunit, and rely on four copper ions, a single type I copper and three additional copper ions organized in a trinuclear cluster (TNC), with one type II and two type III copper ions, to catalyze the reaction. Here, two crystal structures and the enzymatic characterization of Marinithermus hydrothermalis MCO, a two-domain enzyme, are reported. This enzyme decolorizes Congo Red dye at 70°C in the presence of high halide concentrations and may therefore be useful in the detoxification of industrial waste that contains dyes. In two distinct crystal structures, MhMCO forms the trimers seen in other two-domain MCOs, but differs from these enzymes in that four trimers interact to create a dodecamer. This dodecamer of MhMCO forms a closed ball-like structure and has implications for the sequestration of bound divalent metal ions as well as substrate accessibility. In each subunit of the dodecameric structures, a Trp residue, Trp351, located between the type I and TNC sites exists in two distinct conformations, consistent with a potential role in facilitating electron transfer in the enzyme.
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Affiliation(s)
- Joseph L Paavola
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Umberto Battistin
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Craig M Ogata
- GM/CA at the Advanced Photon Source, Argonne National Laboratory, Lemont, IL 60439, USA
| | - Millie M Georgiadis
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
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7
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Reyes C, Hodgskiss LH, Kerou M, Pribasnig T, Abby SS, Bayer B, Kraemer SM, Schleper C. Genome wide transcriptomic analysis of the soil ammonia oxidizing archaeon Nitrososphaera viennensis upon exposure to copper limitation. THE ISME JOURNAL 2020; 14:2659-2674. [PMID: 32665710 PMCID: PMC7785015 DOI: 10.1038/s41396-020-0715-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/09/2020] [Accepted: 07/02/2020] [Indexed: 12/19/2022]
Abstract
Ammonia-oxidizing archaea (AOA) are widespread in nature and are involved in nitrification, an essential process in the global nitrogen cycle. The enzymes for ammonia oxidation and electron transport rely heavily on copper (Cu), which can be limited in nature. In this study the model soil archaeon Nitrososphaera viennensis was investigated via transcriptomic analysis to gain insight regarding possible Cu uptake mechanisms and compensation strategies when Cu becomes limiting. Upon Cu limitation, N. viennensis exhibited impaired nitrite production and thus growth, which was paralleled by downregulation of ammonia oxidation, electron transport, carbon fixation, nucleotide, and lipid biosynthesis pathway genes. Under Cu-limitation, 1547 out of 3180 detected genes were differentially expressed, with 784 genes upregulated and 763 downregulated. The most highly upregulated genes encoded proteins with a possible role in Cu binding and uptake, such as the Cu chelator and transporter CopC/D, disulfide bond oxidoreductase D (dsbD), and multicopper oxidases. While this response differs from the marine strain Nitrosopumilus maritimus, conserved sequence motifs in some of the Cu-responsive genes suggest conserved transcriptional regulation in terrestrial AOA. This study provides possible gene regulation and energy conservation mechanisms linked to Cu bioavailability and presents the first model for Cu uptake by a soil AOA.
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Affiliation(s)
- Carolina Reyes
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria.
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria.
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria.
| | - Logan H Hodgskiss
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
| | - Melina Kerou
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
| | - Thomas Pribasnig
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
| | - Sophie S Abby
- University Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000, Grenoble, France
| | - Barbara Bayer
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
- Department of Limnology and Oceanography, Division of Bio-oceanography, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria
- Department of Ecology, Evolution and Marine Biology, University of California Santa Barbara, Santa Barbara, CA, 93106-9620, USA
| | - Stephan M Kraemer
- Department of Environmental Geosciences, Centre for Microbiology and Environmental Systems Science, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria
| | - Christa Schleper
- Department of Functional and Evolutionary Ecology, Archaea Biology and Ecogenomics Unit, University of Vienna, Althanstrasse 14, UZA1, 1090, Vienna, Austria.
- Environmental Science Research Network (ESRN), Faculty for Geosciences, Geography and Astronomy, University of Vienna, Althanstrasse 14, UZA2, 1090, Vienna, Austria.
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8
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Gräff M, Buchholz PCF, Le Roes‐Hill M, Pleiss J. Multicopper oxidases: modular structure, sequence space, and evolutionary relationships. Proteins 2020; 88:1329-1339. [DOI: 10.1002/prot.25952] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/22/2020] [Accepted: 05/16/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Maike Gräff
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart Stuttgart Germany
| | - Patrick C. F. Buchholz
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart Stuttgart Germany
| | - Marilize Le Roes‐Hill
- Applied Microbial and Health Biotechnology Institute, Cape Peninsula University of Technology Bellville South Africa
| | - Jürgen Pleiss
- Institute of Biochemistry and Technical Biochemistry, University of Stuttgart Stuttgart Germany
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9
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The genome of opportunistic fungal pathogen Fusarium oxysporum carries a unique set of lineage-specific chromosomes. Commun Biol 2020; 3:50. [PMID: 32005944 PMCID: PMC6994591 DOI: 10.1038/s42003-020-0770-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Fusarium oxysporum is a cross-kingdom fungal pathogen that infects plants and humans. Horizontally transferred lineage-specific (LS) chromosomes were reported to determine host-specific pathogenicity among phytopathogenic F. oxysporum. However, the existence and functional importance of LS chromosomes among human pathogenic isolates are unknown. Here we report four unique LS chromosomes in a human pathogenic strain NRRL 32931, isolated from a leukemia patient. These LS chromosomes were devoid of housekeeping genes, but were significantly enriched in genes encoding metal ion transporters and cation transporters. Homologs of NRRL 32931 LS genes, including a homolog of ceruloplasmin and the genes that contribute to the expansion of the alkaline pH-responsive transcription factor PacC/Rim1p, were also present in the genome of NRRL 47514, a strain associated with Fusarium keratitis outbreak. This study provides the first evidence, to our knowledge, for genomic compartmentalization in two human pathogenic fungal genomes and suggests an important role of LS chromosomes in niche adaptation. Zhang, Yang et al. compare a Fusarium oxysporum isolate obtained clinically to a phytopathogenic strain to examine transfer of lineage-specific chromosomes in determining host specificity. They find four unique lineage-specific chromosomes that seem to contribute to fungal adaptation to human hosts.
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10
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Arregui L, Ayala M, Gómez-Gil X, Gutiérrez-Soto G, Hernández-Luna CE, Herrera de los Santos M, Levin L, Rojo-Domínguez A, Romero-Martínez D, Saparrat MCN, Trujillo-Roldán MA, Valdez-Cruz NA. Laccases: structure, function, and potential application in water bioremediation. Microb Cell Fact 2019; 18:200. [PMID: 31727078 PMCID: PMC6854816 DOI: 10.1186/s12934-019-1248-0] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 10/31/2019] [Indexed: 11/11/2022] Open
Abstract
The global rise in urbanization and industrial activity has led to the production and incorporation of foreign contaminant molecules into ecosystems, distorting them and impacting human and animal health. Physical, chemical, and biological strategies have been adopted to eliminate these contaminants from water bodies under anthropogenic stress. Biotechnological processes involving microorganisms and enzymes have been used for this purpose; specifically, laccases, which are broad spectrum biocatalysts, have been used to degrade several compounds, such as those that can be found in the effluents from industries and hospitals. Laccases have shown high potential in the biotransformation of diverse pollutants using crude enzyme extracts or free enzymes. However, their application in bioremediation and water treatment at a large scale is limited by the complex composition and high salt concentration and pH values of contaminated media that affect protein stability, recovery and recycling. These issues are also associated with operational problems and the necessity of large-scale production of laccase. Hence, more knowledge on the molecular characteristics of water bodies is required to identify and develop new laccases that can be used under complex conditions and to develop novel strategies and processes to achieve their efficient application in treating contaminated water. Recently, stability, efficiency, separation and reuse issues have been overcome by the immobilization of enzymes and development of novel biocatalytic materials. This review provides recent information on laccases from different sources, their structures and biochemical properties, mechanisms of action, and application in the bioremediation and biotransformation of contaminant molecules in water. Moreover, we discuss a series of improvements that have been attempted for better organic solvent tolerance, thermo-tolerance, and operational stability of laccases, as per process requirements.
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Affiliation(s)
- Leticia Arregui
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe Cuajimalpa, C.P. 05348 Mexico City, Mexico
| | - Marcela Ayala
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Av. Universidad 2001 Chamilpa, 62210 Cuernavaca, Morelos Mexico
| | - Ximena Gómez-Gil
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Guadalupe Gutiérrez-Soto
- Facultad de Agronomía, Universidad Autónoma de Nuevo León, Francisco Villa, 66059 Colonia Ex hacienda El Canadá, General Escobedo, Nuevo León Mexico
| | - Carlos Eduardo Hernández-Luna
- Laboratorio de Enzimología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Pedro de Alba y Manuel L. Barragán, Cd. Universitaria, 66451 San Nicolás de los Garza, Nuevo León Mexico
| | - Mayra Herrera de los Santos
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Laura Levin
- Laboratorio de Micología Experimental, DBBE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, INMIBO-CONICET, Ciudad Universitaria, Pabellón 2, Piso 4, C1428BGA Ciudad Autónoma de Buenos Aires, Argentina
| | - Arturo Rojo-Domínguez
- Departamento de Ciencias Naturales, Universidad Autónoma Metropolitana, Unidad Cuajimalpa, Av. Vasco de Quiroga 4871, Col. Santa Fe Cuajimalpa, C.P. 05348 Mexico City, Mexico
| | - Daniel Romero-Martínez
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Mario C. N. Saparrat
- Instituto de Fisiología Vegetal (INFIVE), Universidad Nacional de La Plata (UNLP)-CCT-La Plata-Consejo Nacional de Investigaciones Científicas y técnicas (CONICET), Diag. 113 y 61, 327CC, 1900, La Plata, Argentina
- Instituto de Botánica Spegazzini, Facultad de Ciencias Naturales y Museo, Universidad Nacional de La Plata, 53 # 477, 1900, La Plata, Argentina
| | - Mauricio A. Trujillo-Roldán
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
| | - Norma A. Valdez-Cruz
- Programa de Investigación de Producción de Biomoléculas, Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, AP. 70228, Mexico City, CP. 04510 Mexico
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11
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Multicopper oxidases: Biocatalysts in microbial pathogenesis and stress management. Microbiol Res 2019; 222:1-13. [DOI: 10.1016/j.micres.2019.02.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/03/2019] [Accepted: 02/14/2019] [Indexed: 02/08/2023]
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12
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Identification of a copper-transporting ATPase involved in biosynthesis of A. flavus conidial pigment. Appl Microbiol Biotechnol 2019; 103:4889-4897. [DOI: 10.1007/s00253-019-09820-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/28/2019] [Accepted: 03/31/2019] [Indexed: 01/18/2023]
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13
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Biochemical characterization of a thermostable cobalt- or copper-dependent polyphenol oxidase with dye decolorizing ability from Geobacillus sp. JS12. Enzyme Microb Technol 2018; 118:30-36. [PMID: 30143196 DOI: 10.1016/j.enzmictec.2018.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/30/2018] [Accepted: 06/27/2018] [Indexed: 11/23/2022]
Abstract
A putative laccase-like gene, GPPO, encoding a protein of 17.2 kDa and belonging to the multicopper oxidase family, was cloned and overexpressed in Escherichia coli cells. The purified recombinant protein GPPO is homodecameric protein with a molecular weight of 171.6 kDa. GPPO was not detected the ultraviolet-visible spectroscopy (UV/Vis) spectrum of typical laccases. Co2+ or Cu2+ was essential for substrate oxidation of GPPO, and the enzyme contained 1 mol of Co or Cu per mole of protein. The optimum pH required for the oxidation of 2,2'-azino-bis(3-ethylbenzothazoline-6-sulfonate) (ABTS) and 2,6-dimethoxyphenol (DMP) was 4.5 and 5.5, respectively, and the optimum temperature was 75 °C. The half-life of heat inactivation was about 8 min at 80 °C and 90 min at 90 °C, in the presence of Cu2+ and Co2+, respectively. The catalytic efficiency (kcat/Km) of GPPO containing Co2+ was 68 times higher than that of GPPO containing Cu2+. The enzyme reaction was inhibited by conventional inhibitors of laccase like metal chelators and thiol compounds. GPPO incubated with Cu2+ or Co2+ for 48 h decolorizes 45% or 47% of Nile blue, respectively. This is the first report of a novel thermostable polyphenol oxidase that shows the cobalt-dependent laccase activity and dye decolorization ability.
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14
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Wherland S, Pecht I. Radiation chemists look at damage in redox proteins induced by X-rays. Proteins 2018; 86:817-826. [DOI: 10.1002/prot.25521] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 03/26/2018] [Accepted: 04/25/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Scot Wherland
- Department of Chemistry; Washington State University; Pullman Washington
| | - Israel Pecht
- Department of Immunology; The Weizmann Institute of Science; Rehovot 76100 Israel
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15
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Guengerich FP. Introduction to Metals in Biology 2018: Copper homeostasis and utilization in redox enzymes. J Biol Chem 2018; 293:4603-4605. [PMID: 29425098 DOI: 10.1074/jbc.tm118.002255] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
This 11th Thematic Metals in Biology Thematic Series deals with copper, a transition metal with a prominent role in biochemistry. Copper is a very versatile element, and both deficiencies and excesses can be problematic. The five Minireviews in this series deal with several aspects of copper homeostasis in microorganisms and mammals and the role of this metal in two enzymes, copper-only superoxide dismutase and cytochrome c oxidase.
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Affiliation(s)
- F Peter Guengerich
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-0146.
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16
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Forootanfar H, Arjmand S, Behzadi M, Faramarzi MA. Laccase-Mediated Treatment of Pharmaceutical Wastes. RESEARCH ADVANCEMENTS IN PHARMACEUTICAL, NUTRITIONAL, AND INDUSTRIAL ENZYMOLOGY 2018. [DOI: 10.4018/978-1-5225-5237-6.ch010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Laccases are versatile multi-copper enzymes belonging to the superfamily of oxidase enzymes, which have been known since the nineteenth century. Recent discoveries have refined investigators' views of the potential of laccase as a magic tool for remarkable biotechnological purposes. A literature review of the capabilities of laccases, their assorted substrates, and their molecular mechanism of action now indicates the emergence of a new direction for laccase application as part of an arsenal in the fight against the contamination of water supplies by a number of frequently prescribed medications. This chapter provides a critical review of the literature and reveals the pivotal role of laccases in the elimination and detoxification of pharmaceutical contaminants in aquatic environments and wastewaters.
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17
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Hong CY, Ryu SH, Jeong H, Lee SS, Kim M, Choi IG. Phanerochaete chrysosporium Multienzyme Catabolic System for in Vivo Modification of Synthetic Lignin to Succinic Acid. ACS Chem Biol 2017; 12:1749-1759. [PMID: 28463479 DOI: 10.1021/acschembio.7b00046] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Whole cells of the basidiomycete fungus Phanerochaete chrysosporium (ATCC 20696) were applied to induce the biomodification of lignin in an in vivo system. Our results indicated that P. chrysosporium has a catabolic system that induces characteristic biomodifications of synthetic lignin through a series of redox reactions, leading not only to the degradation of lignin but also to its polymerization. The reducing agents ascorbic acid and α-tocopherol were used to stabilize the free radicals generated from the ligninolytic process. The application of P. chrysosporium in combination with reducing agents produced aromatic compounds and succinic acid as well as degraded lignin polymers. P. chrysosporium selectively catalyzed the conversion of lignin to succinic acid, which has an economic value. A transcriptomic analysis of P. chrysosporium suggested that the bond cleavage of synthetic lignin was caused by numerous enzymes, including extracellular enzymes such as lignin peroxidase and manganese peroxidase, and that the aromatic compounds released were metabolized in both the short-cut and classical tricarboxylic acid cycles of P. chrysosporium. In conclusion, P. chrysosporium is suitable as a biocatalyst for lignin degradation to produce a value-added product.
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Affiliation(s)
- Chang-Young Hong
- Division of Wood Chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul, Republic of Korea
| | - Sun-Hwa Ryu
- Division of Wood Chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul, Republic of Korea
| | - Hanseob Jeong
- Division of Wood Chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul, Republic of Korea
| | - Sung-Suk Lee
- Division of Wood Chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul, Republic of Korea
| | - Myungkil Kim
- Division of Wood Chemistry & Microbiology, Department of Forest Products, National Institute of Forest Science, Seoul, Republic of Korea
| | - In-Gyu Choi
- Department
of Forest Sciences, Seoul National University, Seoul, Republic of Korea
- Research
Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
- Institutes
of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea
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18
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Amino acids located in the outer-sphere of the trinuclear copper center in a multicopper oxidase, CueO as the putative electron donor in the four-electron reduction of dioxygen. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:997-1003. [PMID: 28473295 DOI: 10.1016/j.bbapap.2017.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 04/26/2017] [Accepted: 04/29/2017] [Indexed: 12/14/2022]
Abstract
The reaction mechanism of multicopper oxidase (MCO) to reduce dioxygen to water has not been fully understood yet in spite of extensive studies including on the intermediate I (peroxide intermediate) and intermediate II (native intermediate with an O-centered structure at the trinuclear copper center (TNC)). We performed the Phe mutations at the four amino acids, Tyr69, Cys138, Trp139, and Tyr496 located in the outer-sphere of TNC in CueO at the aim of studying whether they play a role as the fourth electron donor to dioxygen or not. Spectral properties and enzymatic activities of CueO were sparingly affected or not affected by the mutations at these putative electron donors. Of the targeted four amino acids Trp139 is in a d-π interaction distance with one of T3Cus and drives stepwise formation and release of water molecules by making two T3Cus non-equivalent. However, contribution of a radical species derived from Trp139 has not been observed in the formation and decay processes of the reaction intermediates. The present study strongly suggests that the amino acids located in the outer-sphere of TNC are not utilized as electron donor in the reduction of dioxygen to water by the three-domain MCO, CueO, differing from cytochrome oxidase and SLAC, a two-domain MCO, in which reaction participation of an uncoordinated Tyr residue has been proposed. SUMMARY We performed the Phe mutations at the four amino acids, Tyr69, Cys138, Trp139 and Tyr496 located in the outer-coordination sphere of the trinuclear copper center in a three-domain multicopper oxidase, CueO to ascertain whether they function as an electron donor or not in the four-electron reduction of dioxygen. Characterizations of the mutants and reactions did not suggest participation of the targeted amino acids, indicating that CueO follows a different reaction mechanism from that of a two-domain multicopper oxidase, SLAC, in which reaction participation of an uncoordinated Tyr has been suggested.
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19
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Abstract
Prior to 1950, the consensus was that biological transformations occurred in two-electron steps, thereby avoiding the generation of free radicals. Dramatic advances in spectroscopy, biochemistry, and molecular biology have led to the realization that protein-based radicals participate in a vast array of vital biological mechanisms. Redox processes involving high-potential intermediates formed in reactions with O2 are particularly susceptible to radical formation. Clusters of tyrosine (Tyr) and tryptophan (Trp) residues have been found in many O2-reactive enzymes, raising the possibility that they play an antioxidant protective role. In blue copper proteins with plastocyanin-like domains, Tyr/Trp clusters are uncommon in the low-potential single-domain electron-transfer proteins and in the two-domain copper nitrite reductases. The two-domain muticopper oxidases, however, exhibit clusters of Tyr and Trp residues near the trinuclear copper active site where O2 is reduced. These clusters may play a protective role to ensure that reactive oxygen species are not liberated during O2 reduction.
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Affiliation(s)
- Harry B Gray
- Beckman Institute, California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125, USA
| | - Jay R Winkler
- Beckman Institute, California Institute of Technology, 1200 E California Boulevard, Pasadena, CA 91125, USA
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20
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Wherland S, Miyazaki K, Pecht I. Intramolecular Electron Transfer in the Bacterial Two-Domain Multicopper Oxidase mgLAC. Biochemistry 2016; 55:2960-6. [PMID: 27126506 DOI: 10.1021/acs.biochem.6b00158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The kinetics of the intramolecular electron transfer process in mgLAC, a bacterial two-domain multicopper oxidase (MCO), were investigated by pulse radiolysis. The reaction is initiated by CO2(-) radicals produced in anaerobic, aqueous solutions of the enzyme by microsecond pulses of radiation. A sequence of pulses of CO2(-) radicals enables examination of the reductive half-cycle of the MCO catalysis. This is done by titrations of the Type 1 (T1) Cu(II) site and monitoring of the time course and amplitude of its reoxidation by internal electron transfer (ET) to the Type 3 site. Comparison of the internal ET kinetics observed for mgLAC with those of other MCOs studied by pulse radiolysis shows that they exhibit distinct reactivities. One main cause for the different reactivities is the broad range of T1 copper redox potentials, from the moderate potential of bacterial enzymes to the high potential of fungal laccases, and this possibly also reflects evolutionary quaternary structural adaptation of the MCO family to the wide range of reducing substrates that they oxidize while maintaining efficient reduction of the common substrate, molecular oxygen.
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Affiliation(s)
- Scot Wherland
- Department of Chemistry, Washington State University , Pullman, Washington 99164-4630, United States
| | - Kentaro Miyazaki
- Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology , Tsukuba Central 6, 10101 Higashi, Tsukuba, Ibaraki 205-8566, Japan
| | - Israel Pecht
- Department of Immunology, Weizmann Institute of Science , Rehovot 76100, Israel
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21
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Fukuda Y, Tse KM, Suzuki M, Diederichs K, Hirata K, Nakane T, Sugahara M, Nango E, Tono K, Joti Y, Kameshima T, Song C, Hatsui T, Yabashi M, Nureki O, Matsumura H, Inoue T, Iwata S, Mizohata E. Redox-coupled structural changes in nitrite reductase revealed by serial femtosecond and microfocus crystallography. J Biochem 2016; 159:527-38. [PMID: 26769972 PMCID: PMC4846774 DOI: 10.1093/jb/mvv133] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/19/2015] [Indexed: 11/17/2022] Open
Abstract
Serial femtosecond crystallography (SFX) has enabled the damage-free structural determination of metalloenzymes and filled the gaps of our knowledge between crystallographic and spectroscopic data. Crystallographers, however, scarcely know whether the rising technique provides truly new structural insights into mechanisms of metalloenzymes partly because of limited resolutions. Copper nitrite reductase (CuNiR), which converts nitrite to nitric oxide in denitrification, has been extensively studied by synchrotron radiation crystallography (SRX). Although catalytic Cu (Type 2 copper (T2Cu)) of CuNiR had been suspected to tolerate X-ray photoreduction, we here showed that T2Cu in the form free of nitrite is reduced and changes its coordination structure in SRX. Moreover, we determined the completely oxidized CuNiR structure at 1.43 Å resolution with SFX. Comparison between the high-resolution SFX and SRX data revealed the subtle structural change of a catalytic His residue by X-ray photoreduction. This finding, which SRX has failed to uncover, provides new insight into the reaction mechanism of CuNiR.
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Affiliation(s)
- Yohta Fukuda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ka Man Tse
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;
| | - Mamoru Suzuki
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan; RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Kay Diederichs
- Department of Biology, University of Konstanz, D-78457 Konstanz, Germany;
| | - Kunio Hirata
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Takanori Nakane
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
| | - Michihiro Sugahara
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Eriko Nango
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Kensuke Tono
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan;
| | - Yasumasa Joti
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan;
| | - Takashi Kameshima
- Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan;
| | - Changyong Song
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan; Department of Physics, Pohang University of Science and Technology, Pohang 790-784, Korea; and
| | - Takaki Hatsui
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Makina Yabashi
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan;
| | - Osamu Nureki
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan;
| | - Hiroyoshi Matsumura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tsuyoshi Inoue
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;
| | - So Iwata
- RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148, Japan; Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Eiichi Mizohata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan;
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22
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Li J, Lawton TJ, Kostecki JS, Nisthal A, Fang J, Mayo SL, Rosenzweig AC, Jewett MC. Cell‐free protein synthesis enables high yielding synthesis of an active multicopper oxidase. Biotechnol J 2015; 11:212-8. [DOI: 10.1002/biot.201500030] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 06/26/2015] [Accepted: 07/31/2015] [Indexed: 12/22/2022]
Affiliation(s)
- Jian Li
- Department of Chemical and Biological Engineering Northwestern University Evanston IL USA
- Chemistry of Life Processes Institute Northwestern University Evanston IL USA
- Robert H. Lurie Comprehensive Cancer Center Northwestern University Chicago IL USA
- Simpson Querrey Institute for BioNanotechnology in Medicine Northwestern University Chicago IL USA
| | - Thomas J. Lawton
- Department of Molecular Biosciences Northwestern University Evanston IL USA
| | - Jan S. Kostecki
- Division of Biological Sciences California Institute of Technology Pasadena CA USA
| | - Alex Nisthal
- Division of Biological Sciences California Institute of Technology Pasadena CA USA
| | - Jia Fang
- Department of Molecular Biosciences Northwestern University Evanston IL USA
| | - Stephen L. Mayo
- Division of Biological Sciences California Institute of Technology Pasadena CA USA
| | - Amy C. Rosenzweig
- Robert H. Lurie Comprehensive Cancer Center Northwestern University Chicago IL USA
- Department of Molecular Biosciences Northwestern University Evanston IL USA
- Department of Chemistry Northwestern University Evanston IL USA
| | - Michael C. Jewett
- Department of Chemical and Biological Engineering Northwestern University Evanston IL USA
- Chemistry of Life Processes Institute Northwestern University Evanston IL USA
- Robert H. Lurie Comprehensive Cancer Center Northwestern University Chicago IL USA
- Simpson Querrey Institute for BioNanotechnology in Medicine Northwestern University Chicago IL USA
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23
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Tishchenko S, Gabdulkhakov A, Trubitsina L, Lisov A, Zakharova M, Leontievsky A. Crystallization and X-ray diffraction studies of a two-domain laccase from Streptomyces griseoflavus. ACTA CRYSTALLOGRAPHICA SECTION F-STRUCTURAL BIOLOGY COMMUNICATIONS 2015; 71:1200-4. [PMID: 26323308 DOI: 10.1107/s2053230x15014375] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 07/29/2015] [Indexed: 11/10/2022]
Abstract
Laccase (EC 1.10.3.2) is one of the most common copper-containing oxidases; it is found in many organisms and catalyzes the oxidation of primarily phenolic compounds by oxygen. Two-domain laccases have unusual thermostability, resistance to inhibitors and an alkaline optimum of activity. The causes of these properties in two-domain laccases are poorly understood. A recombinant two-domain laccase (SgfSL) was cloned from the genome of Streptomyces griseoflavus Ac-993, expressed in Escherichia coli and purified to homogeneity. The crystals of SgfSL belonged to the monoclinic space group P21, with unit-cell parameters a = 74.64, b = 94.72, c = 117.40 Å, β = 90.672°, and diffraction data were collected to 2.0 Å resolution using a synchrotron-radiation source. Two functional trimers per asymmetric unit correspond to a Matthews coefficient of 1.99 Å(3) Da(-1) according to the monomer molecular weight of 35.6 kDa.
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Affiliation(s)
- Svetlana Tishchenko
- Institute of Protein Research, Federal Agency of Scientific Organization, Institutskaya 4, 142290 Pushchino, Moscow Region, Russian Federation
| | - Azat Gabdulkhakov
- Institute of Protein Research, Federal Agency of Scientific Organization, Institutskaya 4, 142290 Pushchino, Moscow Region, Russian Federation
| | - Liubov Trubitsina
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Agency of Scientific Organization, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russian Federation
| | - Alexander Lisov
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Agency of Scientific Organization, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russian Federation
| | - Marina Zakharova
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Agency of Scientific Organization, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russian Federation
| | - Alexey Leontievsky
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Federal Agency of Scientific Organization, Prospect Nauki 5, 142290 Pushchino, Moscow Region, Russian Federation
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24
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Komori H, Higuchi Y. Structural insights into the O2reduction mechanism of multicopper oxidase. J Biochem 2015; 158:293-8. [DOI: 10.1093/jb/mvv079] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/23/2015] [Indexed: 01/26/2023] Open
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25
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Komori H, Higuchi Y. Structure and molecular evolution of multicopper blue proteins. Biomol Concepts 2015; 1:31-40. [PMID: 25961983 DOI: 10.1515/bmc.2010.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The multicopper blue protein family, which contains cupredoxin-like domains as a structural unit, is one of the most diverse groups of proteins. This protein family is divided into two functionally different types of enzymes: multicopper oxidase and nitrite reductase. Multicopper oxidase catalyzes the oxidation of the substrate and then reduces dioxygen. The structures of many multicopper oxidases are already known, and until recently they were classified into two main groups: the three- and six-domain types. Both function as monomers and have three spectroscopically different copper sites: Types I (blue), II, and III (tri-nuclear). Nitrite reductase is a closely related protein that contains Types I and II (mono-nuclear) coppers but reduces nitrite instead of dioxygen. Nitrite reductase, which consists of two domains, forms a homotrimer. Multicopper oxidase and nitrite reductase share similar structural architectures and also contain Type I copper. Therefore, it is proposed that they have a common ancestor protein. Recently, some two-domain type multicopper oxidases have been found and their crystal structures have been determined. They have a trimeric quaternary structure and contain an active site at the molecular interface such as nitrite reductase. These results support previous hypotheses and provide an insight into the molecular evolution of multicopper blue proteins.
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26
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Trubitsina LI, Tishchenko SV, Gabdulkhakov AG, Lisov AV, Zakharova MV, Leontievsky AA. Structural and functional characterization of two-domain laccase from Streptomyces viridochromogenes. Biochimie 2015; 112:151-9. [PMID: 25778839 DOI: 10.1016/j.biochi.2015.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 03/05/2015] [Indexed: 11/30/2022]
Abstract
Laccase (EC 1.10.3.2) is one of the most common copper-containing oxidases found in many organisms and catalyses oxidation of primarily phenolic compounds by oxygen. A recently found bacterial laccase whose molecule is formed by two domains - the so called two-domain laccase (2DLac) or small laccase - has unusual resistance to inhibitors and an alkaline optimum of activity. The causes of these properties, as well as the biological function of two-domain laccases, are poorly understood. We performed an enzymatic and structural characterization of 2DLac from Streptomyces viridochromogenes (SvSL). It was cloned and overproduced in Escherichia coli. Phenolic compounds were oxidized in the presence of the enzyme under alkaline but not acidic conditions. Conversely, nonphenolic compounds were oxidized at acidic but not alkaline pH. SvSL catalysed oxidation of nonphenolic compounds more efficiently than that of phenols. Moreover, this two-domain laccase displayed a cytochrome c oxidase activity and exhibited no ferroxidase activity. The enzyme was resistant to specific inhibitors of copper-containing oxidases, such as NaN3 and NaF. We succeeded in generating X-ray quality crystals and solved their structure to a resolution of 2.4 Å. SvSL is a homotrimer in its native state. Comparison of its structure with that of a three-domain laccase revealed differences in the second coordination sphere of the T2/T3 centre and solvent channels. The role of these differences in the resistance of the enzyme to inhibitors and the activity at alkaline pH is under discussion.
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Affiliation(s)
- L I Trubitsina
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPM RAS), Pushchino, Russia; Pushchino State Institute of Life Sciences, Pushchino, Russia
| | - S V Tishchenko
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - A G Gabdulkhakov
- Institute of Protein Research, Russian Academy of Sciences, Pushchino, Russia
| | - A V Lisov
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPM RAS), Pushchino, Russia.
| | - M V Zakharova
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPM RAS), Pushchino, Russia
| | - A A Leontievsky
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPM RAS), Pushchino, Russia; Pushchino State Institute of Life Sciences, Pushchino, Russia
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27
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Hakulinen N, Rouvinen J. Three-dimensional structures of laccases. Cell Mol Life Sci 2015; 72:857-68. [PMID: 25586561 PMCID: PMC11113281 DOI: 10.1007/s00018-014-1827-5] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 12/30/2014] [Indexed: 10/24/2022]
Abstract
Laccases are phenol oxidases that belong to the family of multi-copper oxidases and the superfamily of cupredoxins. A number of potential industrial applications for laccases have led to intensive structure-function studies and an increased amount of crystal structures has been solved. The objective of this review is to summarize and analyze available crystal structures of laccases. The experimental crystallographic data are now easily available from the websites and electron density maps can be used for the interpretation of the structural models. The crystal structures can give valuable insights into the functional mechanisms and may serve as the basis for the development of laccases for industrial applications.
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Affiliation(s)
- N Hakulinen
- Department of Chemistry, University of Eastern Finland, Joensuu Campus, PO Box 111, 80101, Joensuu, Finland,
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28
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Moshkov KA, Zaitsev VN, Grishina TV, Stefanov VE. Multinuclear blue copper-proteins: the evolutionary design. J EVOL BIOCHEM PHYS+ 2014. [DOI: 10.1134/s0022093014030016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Solomon EI, Heppner DE, Johnston EM, Ginsbach JW, Cirera J, Qayyum M, Kieber-Emmons MT, Kjaergaard CH, Hadt RG, Tian L. Copper active sites in biology. Chem Rev 2014; 114:3659-853. [PMID: 24588098 PMCID: PMC4040215 DOI: 10.1021/cr400327t] [Citation(s) in RCA: 1147] [Impact Index Per Article: 114.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - David E. Heppner
- Department of Chemistry, Stanford University, Stanford, CA, 94305
| | | | - Jake W. Ginsbach
- Department of Chemistry, Stanford University, Stanford, CA, 94305
| | - Jordi Cirera
- Department of Chemistry, Stanford University, Stanford, CA, 94305
| | - Munzarin Qayyum
- Department of Chemistry, Stanford University, Stanford, CA, 94305
| | | | | | - Ryan G. Hadt
- Department of Chemistry, Stanford University, Stanford, CA, 94305
| | - Li Tian
- Department of Chemistry, Stanford University, Stanford, CA, 94305
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30
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Gunne M, Höppner A, Hagedoorn PL, Urlacher VB. Structural and redox properties of the small laccase Ssl1 fromStreptomyces sviceus. FEBS J 2014; 281:4307-18. [DOI: 10.1111/febs.12755] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 02/11/2014] [Accepted: 02/12/2014] [Indexed: 11/27/2022]
Affiliation(s)
- Matthias Gunne
- Institute of Biochemistry; Heinrich-Heine-Universität Düsseldorf; Germany
| | - Astrid Höppner
- Crystal Farm and X-Ray Facility; Heinrich-Heine-Universität Düsseldorf; Germany
| | | | - Vlada B. Urlacher
- Institute of Biochemistry; Heinrich-Heine-Universität Düsseldorf; Germany
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31
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Multicopper oxidases: intramolecular electron transfer and O2 reduction. J Biol Inorg Chem 2014; 19:541-54. [DOI: 10.1007/s00775-013-1080-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 12/18/2013] [Indexed: 12/29/2022]
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32
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Komori H, Kajikawa T, Kataoka K, Higuchi Y, Sakurai T. Crystal structure of the CueO mutants at Glu506, the key amino acid located in the proton transfer pathway for dioxygen reduction. Biochem Biophys Res Commun 2013; 438:686-90. [PMID: 23933321 DOI: 10.1016/j.bbrc.2013.07.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Accepted: 07/30/2013] [Indexed: 10/26/2022]
Abstract
Glu506 involved in the hydrogen bond network leading from solvent waters to the trinuclear copper center in a multicopper oxidase, CueO plays a crucial role to transport protons in the four-electron reduction of dioxygen to water. We performed X-ray crystal structure analyses of the Glu506Ala and Glu506Ile mutants, showing the formation of a compensatory proton transport pathway with only water molecules and a disruption of the hydrogen bond network due to the bulky side chain, respectively. We discuss the efficiency of proton transport through the hydrogen bond network based on the present results and our previous modification of the proton transport pathway by the Glu506 to Gln mutation, which have allowed us to trap and characterize the reaction intermediates.
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Affiliation(s)
- Hirofumi Komori
- Faculty of Education, Kagawa University, 1-1 Saiwai, Takamatsu 760-8522, Japan
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33
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Lawton TJ, Bowen KE, Sayavedra-Soto LA, Arp DJ, Rosenzweig AC. Characterization of a nitrite reductase involved in nitrifier denitrification. J Biol Chem 2013; 288:25575-25583. [PMID: 23857587 DOI: 10.1074/jbc.m113.484543] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Nitrifier denitrification is the conversion of nitrite to nitrous oxide by ammonia-oxidizing organisms. This process, which is distinct from denitrification, is active under aerobic conditions in the model nitrifier Nitrosomonas europaea. The central enzyme of the nitrifier dentrification pathway is a copper nitrite reductase (CuNIR). To understand how a CuNIR, typically inactivated by oxygen, functions in this pathway, the enzyme isolated directly from N. europaea (NeNIR) was biochemically and structurally characterized. NeNIR reduces nitrite at a similar rate to other CuNIRs but appears to be oxygen tolerant. Crystal structures of oxidized and reduced NeNIR reveal a substrate channel to the active site that is much more restricted than channels in typical CuNIRs. In addition, there is a second fully hydrated channel leading to the active site that likely acts a water exit pathway. The structure is minimally affected by changes in pH. Taken together, these findings provide insight into the molecular basis for NeNIR oxygen tolerance.
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Affiliation(s)
- Thomas J Lawton
- From the Departments of Molecular Biosciences and of Chemistry, Northwestern University, Evanston, Illinois 60208 and
| | - Kimberly E Bowen
- From the Departments of Molecular Biosciences and of Chemistry, Northwestern University, Evanston, Illinois 60208 and
| | - Luis A Sayavedra-Soto
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon 97331
| | - Daniel J Arp
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, Oregon 97331
| | - Amy C Rosenzweig
- From the Departments of Molecular Biosciences and of Chemistry, Northwestern University, Evanston, Illinois 60208 and.
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Sherif M, Waung D, Korbeci B, Mavisakalyan V, Flick R, Brown G, Abou-Zaid M, Yakunin AF, Master ER. Biochemical studies of the multicopper oxidase (small laccase) from Streptomyces coelicolor using bioactive phytochemicals and site-directed mutagenesis. Microb Biotechnol 2013; 6:588-97. [PMID: 23815400 PMCID: PMC3918160 DOI: 10.1111/1751-7915.12068] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 04/29/2013] [Accepted: 05/01/2013] [Indexed: 11/30/2022] Open
Abstract
Multicopper oxidases can act on a broad spectrum of phenolic and non-phenolic compounds. These enzymes include laccases, which are widely distributed in plants and fungi, and were more recently identified in bacteria. Here, we present the results of biochemical and mutational studies of small laccase (SLAC), a multicopper oxidase from Streptomyces coelicolor (SCO6712). In addition to typical laccase substrates, SLAC was tested using phenolic compounds that exhibit antioxidant activity. SLAC showed oxidase activity against 12 of 23 substrates tested, including caffeic acid, ferulic acid, resveratrol, quercetin, morin, kaempferol and myricetin. The kinetic parameters of SLAC were determined for 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid), 2,6-dimethoxyphenol, quercetin, morin and myricetin, and maximum reaction rates were observed with myricetin, where kcat and Km values at 60°C were 8.1 (± 0.8) s−1 and 0.9 (± 0.3) mM respectively. SLAC had a broad pH optimum for activity (between pH 4 and 8) and temperature optimum at 60–70°C. It demonstrated remarkable thermostability with a half-life of over 10 h at 80°C and over 7 h at 90°C. Site-directed mutagenesis revealed 17 amino acid residues important for SLAC activity including the 10 His residues involved in copper coordination. Most notably, the Y229A and Y230A mutant proteins showed over 10-fold increase in activity compared with the wild-type SLAC, which was correlated to higher copper incorporation, while kinetic analyses with S929A predicts localization of this residue near the meta-position of aromatic substrates. Funding Information Funding for this research was provided by the Government of Ontario for the project ‘FFABnet: Functionalized Fibre and Biochemicals’ (ORF-RE-05-005), and the Natural Sciences and Engineering Research Council of Canada.
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Affiliation(s)
- Mohammed Sherif
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON M5S 3E5, Canada
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Lörcher S, Lopes P, Kartashov A, Ferapontova EE. Direct Bio-electrocatalysis of O2Reduction byStreptomyces coelicolorLaccase Orientated at Promoter-Modified Graphite Electrodes. Chemphyschem 2013; 14:2112-24. [DOI: 10.1002/cphc.201300069] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2013] [Indexed: 11/06/2022]
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36
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Huang XF, Santhanam N, Badri DV, Hunter WJ, Manter DK, Decker SR, Vivanco JM, Reardon KF. Isolation and characterization of lignin-degrading bacteria from rainforest soils. Biotechnol Bioeng 2013; 110:1616-26. [PMID: 23297115 DOI: 10.1002/bit.24833] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 11/21/2012] [Accepted: 12/17/2012] [Indexed: 11/09/2022]
Abstract
The deconstruction of lignin to enhance the release of fermentable sugars from plant cell walls presents a challenge for biofuels production from lignocellulosic biomass. The discovery of novel lignin-degrading enzymes from bacteria could provide advantages over fungal enzymes in terms of their production and relative ease of protein engineering. In this study, 140 bacterial strains isolated from soils of a biodiversity-rich rainforest in Peru were screened based on their oxidative activity on ABTS, a laccase substrate. Strain C6 (Bacillus pumilus) and strain B7 (Bacillus atrophaeus) were selected for their high laccase activity and identified by 16S rDNA analysis. Strains B7 and C6 degraded fragments of Kraft lignin and the lignin model dimer guaiacylglycerol-β-guaiacyl ether, the most abundant linkage in lignin. Finally, LC-MS analysis of incubations of strains B7 and C6 with poplar biomass in rich and minimal media revealed that a higher number of compounds were released in the minimal medium than in the rich one. These findings provide important evidence that bacterial enzymes can degrade and/or modify lignin and contribute to the release of fermentable sugars from lignocellulose.
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Affiliation(s)
- Xing-Feng Huang
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523-1370, USA
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Rulíšek L, Ryde U. Theoretical studies of the active-site structure, spectroscopic and thermodynamic properties, and reaction mechanism of multicopper oxidases. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.04.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Gupta A, Nederlof I, Sottini S, Tepper AWJW, Groenen EJJ, Thomassen EAJ, Canters GW. Involvement of Tyr108 in the enzyme mechanism of the small laccase from Streptomyces coelicolor. J Am Chem Soc 2012; 134:18213-6. [PMID: 23094962 DOI: 10.1021/ja3088604] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The enzyme mechanism of the multicopper oxidase (MCO) SLAC from Streptomyces coelicolor was investigated by structural (XRD), spectroscopic (optical, EPR), and kinetics (stopped-flow) experiments on variants in which residue Tyr108 had been replaced by Phe or Ala through site-directed mutagenesis. Contrary to the more common three-domain MCOs, a tyrosine in the two-domain SLAC is found to participate in the enzyme mechanism by providing an electron during oxygen reduction, giving rise to the temporary appearance of a tyrosyl radical. The relatively low k(cat)/K(M) of SLAC and the involvement of Y108 in the enzyme mechanism may reflect an adaptation to a milieu in which there is an imbalance between the available reducing and oxidizing co-substrates. The purported evolutionary relationship between the two-domain MCOs and human ceruloplasmin appears to extend not only to the 3D structure and the mode of binding of the Cu's in the trinuclear center, as noted before, but also to the enzyme mechanism.
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Affiliation(s)
- Ankur Gupta
- Leiden Institute of Physics, Leiden University, Leiden, The Netherlands
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Bioinformatic analysis reveals high diversity of bacterial genes for laccase-like enzymes. PLoS One 2011; 6:e25724. [PMID: 22022440 PMCID: PMC3192119 DOI: 10.1371/journal.pone.0025724] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 09/09/2011] [Indexed: 11/19/2022] Open
Abstract
Fungal laccases have been used in various fields ranging from processes in wood and paper industries to environmental applications. Although a few bacterial laccases have been characterized in recent years, prokaryotes have largely been neglected as a source of novel enzymes, in part due to the lack of knowledge about the diversity and distribution of laccases within Bacteria. In this work genes for laccase-like enzymes were searched for in over 2,200 complete and draft bacterial genomes and four metagenomic datasets, using the custom profile Hidden Markov Models for two- and three-domain laccases. More than 1,200 putative genes for laccase-like enzymes were retrieved from chromosomes and plasmids of diverse bacteria. In 76% of the genes, signal peptides were predicted, indicating that these bacterial laccases may be exported from the cytoplasm, which contrasts with the current belief. Moreover, several examples of putatively horizontally transferred bacterial laccase genes were described. Many metagenomic sequences encoding fragments of laccase-like enzymes could not be phylogenetically assigned, indicating considerable novelty. Laccase-like genes were also found in anaerobic bacteria, autotrophs and alkaliphiles, thus opening new hypotheses regarding their ecological functions. Bacteria identified as carrying laccase genes represent potential sources for future biotechnological applications.
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40
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Assey G, Butcher RJ, Gultneh Y. μ-Bromido-bis{μ-2,2'-[4,7-diaza-decane-1,10-diylbis(nitrilo-methanylyl-idene)]diphenolato}tricopper(II) bromide dimethyl-formamide disolvate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:m1197-8. [PMID: 22058844 PMCID: PMC3200975 DOI: 10.1107/s160053681103090x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Accepted: 08/01/2011] [Indexed: 11/10/2022]
Abstract
The complex mol-ecule of the title compound, [Cu(3)Br(C(22)H(28)N(4)O(2))(2)]Br·2C(3)H(7)NO, contains three copper atoms, two of which are five-coordinate within a square-pyramidal environment and linked by a bridging Br atom occupying the apical position in each square pyramid. The remaining Cu atom is four-coordinate but with considerable tetra-hedral disortion [the dihedral angle between the two chelate planes is 69.21 (7)°]. There are two mol-ecules of dimethyl-formamide (DMF) present as solvent mol-ecules, one of which is disordered over two equivalent conformations with occupancies of 0.603 (5) and 0.397 (5). The amine H atoms are involved in both inter- and intra-molecular hydrogen-bonding inter-actions with the Br and O atoms of the cation, as well as with the O atom of the ordered DMF mol-ecule.
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Affiliation(s)
- Gervas Assey
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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41
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Farver O, Wherland S, Koroleva O, Loginov DS, Pecht I. Intramolecular electron transfer in laccases. FEBS J 2011; 278:3463-71. [PMID: 21790996 DOI: 10.1111/j.1742-4658.2011.08268.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Rate constants and activation parameters have been determined for the internal electron transfer from type 1 (T1) to type 3 (T3) copper ions in laccase from both the fungus Trametes hirsuta and the lacquer tree Rhus vernicifera, using the pulse radiolysis method. The rate constant at 298 K and the enthalpy and entropy of activation were 25 ± 1 s(-1), 39.7 ± 5.0 kJ·mol(-1) and -87 ± 9 J·mol(-1) ·K(-1) for the fungal enzyme and 1.1 ± 0.1 s(-1), 9.8 ± 0.2 kJ·mol(-1) and -211 ± 3 J·mol(-1) ·K(-1) for the tree enzyme. The initial reduction of the T1 site by pulse radiolytically produced radicals was direct in the case of T. hirsuta laccase, but occured indirectly via a disulfide radical in R. vernicifera. The equilibrium constant that characterizes the electron transfer from T1 to T3 copper ions was 0.4 for T. hirsuta laccase and 1.5 for R. vernicifera laccase, leading to full reduction of the T1 site occurring at 2.9 ± 0.2 electron equivalents for T. hirsuta and 4 electron equivalents for R. vernicifera laccase. These results were compared with each other and with those for the same process in other multicopper oxidases, ascorbate oxidase and Streptomyces coelicolor laccase, using available structural information and electron transfer theory.
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Affiliation(s)
- Ole Farver
- Institute of Analytical Chemistry, University of Copenhagen, Copenhagen, Denmark.
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42
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Abstract
Blue copper oxidase (BCO) is a multicopper oxidase (MCO) found in Nitrosomonas europaea as well as in other ammonia-oxidizing organisms. In this chapter, we detail methods used to detect, isolate, and characterize BCO from N. europaea. A method for identifying and classifying MCOs commonly found in nitrifiers based on primary sequence is also described.
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43
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Kallio JP, Gasparetti C, Andberg M, Boer H, Koivula A, Kruus K, Rouvinen J, Hakulinen N. Crystal structure of an ascomycete fungal laccase from Thielavia arenaria - common structural features of asco-laccases. FEBS J 2011; 278:2283-95. [PMID: 21535408 DOI: 10.1111/j.1742-4658.2011.08146.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juha P Kallio
- Department of Chemistry, University of Eastern Finland, Joensuu, Finland
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44
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Tepper AWJW, Aartsma TJ, Canters GW. Channeling of electrons within SLAC, the small laccase from Streptomyces coelicolor. Faraday Discuss 2011; 148:161-71; discussion 207-28. [PMID: 21322483 DOI: 10.1039/c002585b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reduction kinetics of the fluorescently labeled small laccase (SLAC) from Streptomyces coelicolor was studied by stopped flow kinetic measurements. The tryptophan fluorescence and the emission from a covalently attached label were used to selectively follow the progress of the reduction of the trinuclear copper center (TNC) and the type-1 (T1) Cu site in the enzyme as a function of time. A numerical analysis of the kinetic traces provided new insight into the midpoint potential difference between the T1 and the TNC site as the TNC becomes stepwise charged with electrons. The change in fluorescence of the TNC as the reduction of the TNC proceeds provided evidence that the type-3 dinuclear part of the TNC becomes charged prior to the reduction of the type-2 (T2) center of the TNC. The rate of reduction of the enzyme by dithionite (DT) appeared proportional to the square root of the DT concentration with a rate constant of k(red) = 0.28 +/- 0.02 microM(-1/2) s(-1).
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Affiliation(s)
- Armand W J W Tepper
- Leiden Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands
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45
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Mutti FG, Gullotti M, Casella L, Santagostini L, Pagliarin R, Andersson KK, Iozzi MF, Zoppellaro G. A new chiral, poly-imidazole N8-ligand and the related di- and tri-copper(ii) complexes: synthesis, theoretical modelling, spectroscopic properties, and biomimetic stereoselective oxidations. Dalton Trans 2011; 40:5436-57. [DOI: 10.1039/c0dt00669f] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Skálová T, Dušková J, Hašek J, Stěpánková A, Koval T, Østergaard LH, Dohnálek J. Structure of laccase from Streptomyces coelicolor after soaking with potassium hexacyanoferrate and at an improved resolution of 2.3 Å. Acta Crystallogr Sect F Struct Biol Cryst Commun 2011; 67:27-32. [PMID: 21206017 PMCID: PMC3079965 DOI: 10.1107/s1744309110046099] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 11/09/2010] [Indexed: 05/30/2023]
Abstract
The paper reports the structure of the small laccase from Streptomyces coelicolor determined from a crystal soaked with potassium hexacyanoferrate [K4Fe(CN)6]. The decolorization of the natively blue crystal observed upon soaking indicates the reduction of the enzyme in the crystal. The ligand binds between laccase molecules and stabilizes the crystal. The increased diffraction limit of the diffraction data collected from this crystal enabled the refinement of the small laccase structure at 2.3 Å resolution, which is the highest resolution obtained to date.
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Affiliation(s)
- Tereza Skálová
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovského nám. 2, 162 06 Praha 6, Czech Republic.
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47
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Steady-state and time-resolved fluorescence quenching with transition metal ions as short-distance probes for protein conformation. Anal Biochem 2010; 407:284-6. [PMID: 20707982 DOI: 10.1016/j.ab.2010.07.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Revised: 07/21/2010] [Accepted: 07/30/2010] [Indexed: 11/22/2022]
Abstract
A series of model dye-labeled histidine-containing peptides was used to investigate the nature of the quenching mechanism with Cu(2+) and Ni(2+). The strong reduction in steady-state fluorescence was found to be unaccompanied by any noticeable changes in lifetime kinetics. This static nature of quenching is not consistent with the dynamic Förster resonance energy transfer (FRET) phenomenon, which was assumed to dominate the quenching mechanism, and is likely caused by shorter range orbital coupling. Our results indicate that the FRET-like sixth power of distance dependence of quenching cannot be automatically assumed for transition metal ions and that time-resolved measurements should be used to distinguish various quenching mechanisms.
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48
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Giardina P, Faraco V, Pezzella C, Piscitelli A, Vanhulle S, Sannia G. Laccases: a never-ending story. Cell Mol Life Sci 2010; 67:369-85. [PMID: 19844659 PMCID: PMC11115910 DOI: 10.1007/s00018-009-0169-1] [Citation(s) in RCA: 605] [Impact Index Per Article: 43.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 09/07/2009] [Accepted: 10/01/2009] [Indexed: 10/20/2022]
Abstract
Laccases (benzenediol:oxygen oxidoreductases, EC 1.10.3.2) are blue multicopper oxidases that catalyze the oxidation of an array of aromatic substrates concomitantly with the reduction of molecular oxygen to water. In fungi, laccases carry out a variety of physiological roles during their life cycle. These enzymes are being increasingly evaluated for a variety of biotechnological applications due to their broad substrate range. In this review, the most recent studies on laccase structural features and catalytic mechanisms along with analyses of their expression are reported and examined with the aim of contributing to the discussion on their structure-function relationships. Attention has also been paid to the properties of enzymes endowed with unique characteristics and to fungal laccase multigene families and their organization.
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Affiliation(s)
- Paola Giardina
- Dipartimento di Chimica Organica e Biochimica, Complesso Universitario Monte S. Angelo, 80126 Naples, Italy.
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49
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Farver O, Tepper AWJW, Wherland S, Canters GW, Pecht I. Site−Site Interactions Enhances Intramolecular Electron Transfer in Streptomyces coelicolor laccase. J Am Chem Soc 2009; 131:18226-7. [DOI: 10.1021/ja908793d] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ole Farver
- Institute of Analytical Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark, Leiden Institute of Chemistry, Leiden University, 2300RA, Leiden The Netherlands, Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, and Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Armand W. J. W. Tepper
- Institute of Analytical Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark, Leiden Institute of Chemistry, Leiden University, 2300RA, Leiden The Netherlands, Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, and Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Scot Wherland
- Institute of Analytical Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark, Leiden Institute of Chemistry, Leiden University, 2300RA, Leiden The Netherlands, Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, and Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Gerard W. Canters
- Institute of Analytical Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark, Leiden Institute of Chemistry, Leiden University, 2300RA, Leiden The Netherlands, Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, and Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
| | - Israel Pecht
- Institute of Analytical Chemistry, University of Copenhagen, 2100 Copenhagen, Denmark, Leiden Institute of Chemistry, Leiden University, 2300RA, Leiden The Netherlands, Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, and Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
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50
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Kosman DJ. Multicopper oxidases: a workshop on copper coordination chemistry, electron transfer, and metallophysiology. J Biol Inorg Chem 2009; 15:15-28. [PMID: 19816718 DOI: 10.1007/s00775-009-0590-9] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Accepted: 09/15/2009] [Indexed: 01/01/2023]
Abstract
Multicopper oxidases (MCOs) are unique among copper proteins in that they contain at least one each of the three types of biologic copper sites, type 1, type 2, and the binuclear type 3. MCOs are descended from the family of small blue copper proteins (cupredoxins) that likely arose as a complement to the heme-iron-based cytochromes involved in electron transport; this event corresponded to the aerobiosis of the biosphere that resulted in the conversion of Fe(II) to Fe(III) as the predominant redox state of this essential metal and the solubilization of copper from Cu(2)S to Cu(H(2)O)( n ) (2+). MCOs are encoded in genomes in all three kingdoms and play essential roles in the physiology of essentially all aerobes. With four redox-active copper centers, MCOs share with terminal copper-heme oxidases the ability to catalyze the four-electron reduction of O(2) to two molecules of water. The electron transfers associated with this reaction are both outer and inner sphere in nature and their mechanisms have been fairly well established. A subset of MCO proteins exhibit specificity for Fe(2+), Cu(+), and/or Mn(2+) as reducing substrates and have been designated as metallooxidases. These enzymes, in particular the ferroxidases found in all fungi and metazoans, play critical roles in the metal metabolism of the expressing organism.
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Affiliation(s)
- Daniel J Kosman
- Department of Biochemistry, The University at Buffalo, NY 14214, USA.
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