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Agrawal K, Shankar J, Verma P. Multicopper oxidase (MCO) laccase from Stropharia sp. ITCC-8422: an apparent authentication using integrated experimental and in silico analysis. 3 Biotech 2020; 10:413. [PMID: 32983824 DOI: 10.1007/s13205-020-02399-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 08/17/2020] [Indexed: 11/29/2022] Open
Abstract
In the present study, specificity of laccase from Stropharia sp. ITCC-8422 against various substrates, i.e. 2,2-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,6-dimethoxyphenol (DMP), guaiacol (GCL) and syringaldazine (SYZ) was determined. It exhibited maximum affinity against ABTS, followed by DMP and negligible activity for GCL and SYZ. As the concentration of substrate increased from 0.5 to 1.5 mM (ABTS) and 1 to 5 mM (DMP), the activity increased from 301.1 to 567.8 U/L and 254.4 to 436.2 U/L. Further, quadrupole time-of-flight liquid chromatography mass spectrometry (QTOF-LCMS) analysis of the extracellular proteome of Stropharia sp. ITCC-8422 identified eighty-four (84) extracellular proteins. The peptide sequence for the enzyme of interest exhibited sequence similarity with laccase-5 of Trametes pubescens. Using high molecular mass sequence of laccase-5, the protein structure of laccase was modelled and binding energy of laccase with four substrates, i.e. ABTS (- 5.65), DMP (- 4.65), GCL (- 4.66) and SYZ (- 5.5) was determined using autodock tool. The experimental and in silico analyses revealed maximum activity of laccase and lowest binding energy with ABTS. Besides, laccase was purified and it exhibited 2.1-fold purification with purification yield of 20.4% and had stability of 70% at pH 5-9 and 30-40 ℃. In addition, the bioremediation potential of laccase was explored by in silico analysis, where the binding energy of laccase with alizarin cyanine green was - 6.37 and both in silico work and experimental work were in agreement.
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Affiliation(s)
- Komal Agrawal
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, NH-8, Bandarsindari, Kishangarh, Ajmer, 305817 India
| | - Jata Shankar
- Genomics Laboratory, Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Solan, 173234 Himachal Pradesh India
| | - Pradeep Verma
- Bioprocess and Bioenergy Laboratory, Department of Microbiology, Central University of Rajasthan, NH-8, Bandarsindari, Kishangarh, Ajmer, 305817 India
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2
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Itoh N, Kurokawa J, Isogai Y, Ogasawara M, Matsunaga T, Okubo T, Katsube Y. Functional Characterization of Epitheaflagallin 3-O-Gallate Generated in Laccase-Treated Green Tea Extracts in the Presence of Gallic Acid. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10473-10481. [PMID: 29131612 DOI: 10.1021/acs.jafc.7b04208] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Epitheaflagallin (ETFG) and epitheaflagallin 3-O-gallate (ETFGg) are minor polyphenols in black tea extract that are enzymatically synthesized from epigallocatechin (EGC) and epigallocatechin gallate (EGCg), respectively, in green tea extract via laccase oxidation in the presence of gallic acid. The constituents of laccase-treated green tea extract in the presence of gallic acid are thus quite different from those of nonlaccase-treated green tea extract: EGC and EGCg are present in lower concentrations, and ETFG and ETFGg are present in higher concentrations. Additionally, laccase-treated green tea extract contains further polymerized catechin derivatives, comparable with naturally fermented teas such as oolong tea and black tea. We found that ETFGg and laccase-treated green tea extracts exhibit versatile physiological functions in vivo and in vitro, including antioxidative activity, pancreatic lipase inhibition, Streptococcus sorbinus glycosyltransferase inhibition, and an inhibiting effect on the activity of matrix metalloprotease-1 and -3 and their synthesis by human gingival fibroblasts. We confirmed that these inhibitory effects of ETFGg in vitro match well with the results obtained by docking simulations of the compounds with their target enzymes or noncatalytic protein. Thus, ETFGg and laccase-treated green tea extracts containing ETFGg are promising functional food materials with potential antiobesity and antiperiodontal disease activities.
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Affiliation(s)
| | | | | | - Masaru Ogasawara
- Toyama Prefectural Institute for Pharmaceutical Research , 17-1 Nakataikouyama, Imizu, Toyama 939-0363, Japan
| | - Takayuki Matsunaga
- Toyama Prefectural Institute for Pharmaceutical Research , 17-1 Nakataikouyama, Imizu, Toyama 939-0363, Japan
| | - Tsutomu Okubo
- Research Center, Taiyo Kagaku Co. Ltd. , 1-3 Takaramachi, Yokkaichi, Mie 512-1111, Japan
| | - Yuji Katsube
- Kracie Pharma, Ltd. , 3-1 Kanebo-Machi, Takaoka, Toyama 933-0856, Japan
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3
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Guo C, Zhao L, Wang F, Lu J, Ding Z, Shi G. β-Carotene from Yeasts Enhances Laccase Production of Pleurotus eryngii var. ferulae in Co-culture. Front Microbiol 2017; 8:1101. [PMID: 28670300 PMCID: PMC5472667 DOI: 10.3389/fmicb.2017.01101] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 05/31/2017] [Indexed: 01/26/2023] Open
Abstract
Laccase is widely used in several industrial applications and co-culture is a common method for enhancing laccase production in submerged fermentation. In this study, the co-culture of four yeasts with Pleurotus eryngii var. ferulae was found to enhance laccase production. An analysis of sterilization temperatures and extraction conditions revealed that the stimulatory compound in yeasts was temperature-sensitive, and that it was fat-soluble. An LC-MS analysis revealed that the possible stimulatory compound for laccase production in the four yeast extracts was β-carotene. Moreover, the addition of 4 mg β-carotene to 150 mL of P. eryngii var. ferulae culture broth improved laccase production by 2.2-fold compared with the control (i.e., a monoculture), and was similar to laccase production in co-culture. In addition, the enhanced laccase production was accompanied by an increase of lac gene transcription, which was 6.2-time higher than the control on the fifth day. Therefore, it was concluded that β-carotene from the co-cultured yeasts enhanced laccase production in P. eryngii var. ferulae, and strains that produce β-carotene could be selected to enhance fungal laccase production in a co-culture. Alternatively, β-carotene or crude extracts of β-carotene could be used to induce high laccase production in large scale.
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Affiliation(s)
- Chaolin Guo
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan UniversityWuxi, China.,National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan UniversityWuxi, China
| | - Liting Zhao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan UniversityWuxi, China.,National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan UniversityWuxi, China
| | - Feng Wang
- School of Food and Biological Engineering, Jiangsu UniversityZhenjiang, China
| | - Jian Lu
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan UniversityWuxi, China.,National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan UniversityWuxi, China
| | - Zhongyang Ding
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan UniversityWuxi, China.,National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan UniversityWuxi, China
| | - Guiyang Shi
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan UniversityWuxi, China
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Takeuchi M, Kishino S, Park SB, Kitamura N, Watanabe H, Saika A, Hibi M, Yokozeki K, Ogawa J. Production of dicarboxylic acids from novel unsaturated fatty acids by laccase-catalyzed oxidative cleavage. Biosci Biotechnol Biochem 2016; 80:2132-2137. [PMID: 27352072 DOI: 10.1080/09168451.2016.1200457] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The establishment of renewable biofuel and chemical production is desirable because of global warming and the exhaustion of petroleum reserves. Sebacic acid (decanedioic acid), the material of 6,10-nylon, is produced from ricinoleic acid, a carbon-neutral material, but the process is not eco-friendly because of its energy requirements. Laccase-catalyzing oxidative cleavage of fatty acid was applied to the production of dicarboxylic acids using hydroxy and oxo fatty acids involved in the saturation metabolism of unsaturated fatty acids in Lactobacillus plantarum as substrates. Hydroxy or oxo fatty acids with a functional group near the carbon-carbon double bond were cleaved at the carbon-carbon double bond, hydroxy group, or carbonyl group by laccase and transformed into dicarboxylic acids. After 8 h, 0.58 mM of sebacic acid was produced from 1.6 mM of 10-oxo-cis-12,cis-15-octadecadienoic acid (αKetoA) with a conversion rate of 35% (mol/mol). This laccase-catalyzed enzymatic process is a promising method to produce dicarboxylic acids from biomass-derived fatty acids.
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Affiliation(s)
- Michiki Takeuchi
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Shigenobu Kishino
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Si-Bum Park
- b Industrial Microbiology , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Nahoko Kitamura
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Hiroko Watanabe
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Azusa Saika
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Makoto Hibi
- b Industrial Microbiology , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Kenzo Yokozeki
- b Industrial Microbiology , Graduate School of Agriculture, Kyoto University , Kyoto , Japan
| | - Jun Ogawa
- a Division of Applied Life Sciences , Graduate School of Agriculture, Kyoto University , Kyoto , Japan.,c Research Unit for Physiological Chemistry , Kyoto University , Kyoto , Japan
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Fonseca MI, Tejerina MR, Sawostjanik-Afanasiuk SS, Giorgio EM, Barchuk ML, Zapata PD, Villalba LL. Preliminary studies of new strains of Trametes sp. from Argentina for laccase production ability. Braz J Microbiol 2016; 47:287-97. [PMID: 26991301 PMCID: PMC4874590 DOI: 10.1016/j.bjm.2016.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Accepted: 06/06/2015] [Indexed: 11/30/2022] Open
Abstract
Oxidative enzymes secreted by white rot fungi can be applied in several technological processes within the paper industry, biofuel production and bioremediation. The discovery of native strains from the biodiverse Misiones (Argentina) forest can provide useful enzymes for biotechnological purposes. In this work, we evaluated the laccase and manganese peroxidase secretion abilities of four newly discovered strains of Trametes sp. that are native to Misiones. In addition, the copper response and optimal pH and temperature for laccase activity in culture supernatants were determined. The selected strains produced variable amounts of laccase and MnP; when Cu(2+) was added, both enzymes were significantly increased. Zymograms showed that two isoenzymes were increased in all strains in the presence of Cu(2+). Strain B showed the greatest response to Cu(2+) addition, whereas strain A was more stable at the optimal temperature and pH. Strain A showed interesting potential for future biotechnological approaches due to the superior thermo-stability of its secreted enzymes.
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Affiliation(s)
- María Isabel Fonseca
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina.
| | - Marcos Raúl Tejerina
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
| | - Silvana Soledad Sawostjanik-Afanasiuk
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
| | - Ernesto Martin Giorgio
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
| | - Mónica Lucrecia Barchuk
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
| | - Pedro Darío Zapata
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
| | - Laura Lidia Villalba
- Laboratorio de Biotecnología Molecular, Módulo de Bioquímica y Farmacia, Facultad de Ciencias Exactas Químicas y Naturales, UNaM, Posadas, Misiones, Argentina
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Itoh N, Takagi S, Miki A, Kurokawa J. Characterization and cloning of laccase gene from Hericium coralloides NBRC 7716 suitable for production of epitheaflagallin 3-O-gallate. Enzyme Microb Technol 2015; 82:125-132. [PMID: 26672458 DOI: 10.1016/j.enzmictec.2015.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 09/10/2015] [Accepted: 09/12/2015] [Indexed: 10/23/2022]
Abstract
Epitheaflagallin 3-O-gallate (ETFGg) is a minor polyphenol found in black tea extract, which has good physiological functions. It is synthesized from epigallocatechin gallate (EGCg) with gallic acid via laccase oxidation. Various basidiomycetes and fungi were screened to find a suitable laccase for the production of ETFGg. A basidiomycete, Hericium coralloides NBRC 7716, produced an appropriate extracellular laccase. The purified laccase produced twice the level of ETFGg compared with commercially available laccase from Trametes sp. The enzyme, termed Lcc2, is a monomeric protein with an apparent molecular mass of 67.2 kDa. The N-terminal amino acid sequence of Lcc2 is quite different from laccase isolated from the fruiting bodies of Hericium. Lcc2 showed similar substrate specificity to known laccases and could oxidize various phenolic substrates, including pyrogallol, gallic acid, and 2,6-dimethoxyphenol. The full-length lcc2 gene was obtained by PCR using degenerate primers, which were designed based on the N-terminal amino acid sequence of Lcc2 and conserved copper-binding sites of laccases, and 5'-, and 3'-RACE PCR with mRNA. The Lcc2 gene showed homology with Lentinula edodes laccase (sharing 77% amino acid identity with Lcc6). We successfully produced extracellular Lcc2 using a heterologous expression system with Saccharomyces cerevisiae. Moreover, it was confirmed that the recombinant laccase generates similar levels of ETFGg as the native enzyme.
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Affiliation(s)
- Nobuya Itoh
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan.
| | - Shinya Takagi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Asami Miki
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
| | - Junji Kurokawa
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama 939-0398, Japan
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Margot J, Bennati-Granier C, Maillard J, Blánquez P, Barry DA, Holliger C. Bacterial versus fungal laccase: potential for micropollutant degradation. AMB Express 2013; 3:63. [PMID: 24152339 PMCID: PMC3819643 DOI: 10.1186/2191-0855-3-63] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 11/10/2022] Open
Abstract
Relatively high concentrations of micropollutants in municipal wastewater treatment plant (WWTP) effluents underscore the necessity to develop additional treatment steps prior to discharge of treated wastewater. Microorganisms that produce unspecific oxidative enzymes such as laccases are a potential means to improve biodegradation of these compounds. Four strains of the bacterial genus Streptomyces (S. cyaneus, S. ipomoea, S. griseus and S. psammoticus) and the white-rot fungus Trametes versicolor were studied for their ability to produce active extracellular laccase in biologically treated wastewater with different carbon sources. Among the Streptomyces strains evaluated, only S. cyaneus produced extracellular laccase with sufficient activity to envisage its potential use in WWTPs. Laccase activity produced by T. versicolor was more than 20 times greater, the highest activity being observed with ash branches as the sole carbon source. The laccase preparation of S. cyaneus (abbreviated LSc) and commercial laccase from T. versicolor (LTv) were further compared in terms of their activity at different pH and temperatures, their stability, their substrate range, and their micropollutant oxidation efficiency. LSc and LTv showed highest activities under acidic conditions (around pH 3 to 5), but LTv was active over wider pH and temperature ranges than LSc, especially at near-neutral pH and between 10 and 25°C (typical conditions found in WWTPs). LTv was also less affected by pH inactivation. Both laccase preparations oxidized the three micropollutants tested, bisphenol A, diclofenac and mefenamic acid, with faster degradation kinetics observed for LTv. Overall, T. versicolor appeared to be the better candidate to remove micropollutants from wastewater in a dedicated post-treatment step.
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Effect of pretreatment of hydrothermally processed rice straw with laccase-displaying yeast on ethanol fermentation. Appl Microbiol Biotechnol 2012; 94:939-48. [PMID: 22270238 DOI: 10.1007/s00253-012-3876-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Revised: 12/26/2011] [Accepted: 12/29/2011] [Indexed: 11/27/2022]
Abstract
A gene encoding laccase I was identified and cloned from the white-rot fungus Trametes sp. Ha1. Laccase I contained 10 introns and an original secretion signal sequence. After laccase I without introns was prepared by overlapping polymerase chain reaction, it was inserted into expression vector pULD1 for yeast cell surface display. The oxidation activity of a laccase-I-displaying yeast as a whole-cell biocatalyst was examined with 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), and the constructed yeast showed a high oxidation activity. After the pretreatment of hydrothermally processed rice straw (HPRS) with laccase-I-displaying yeast with ABTS, fermentation was conducted with yeast codisplaying endoglucanase, cellobiohydrolase, and β-glucosidase with HPRS. Fermentation of HPRS treated with laccase-I-displaying yeast was performed with 1.21-fold higher activities than those of HPRS treated with control yeast. The results indicated that pretreatment with laccase-I-displaying yeast with ABTS was effective for direct fermentation of cellulosic materials by yeast codisplaying endoglucanase, cellobiohydrolase, and β-glucosidase.
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Bruyneel F, Dive G, Marchand-Brynaert J. Non-symmetrically substituted phenoxazinones from laccase-mediated oxidative cross-coupling of aminophenols: an experimental and theoretical insight. Org Biomol Chem 2012; 10:1834-46. [PMID: 22257991 DOI: 10.1039/c1ob05795b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Oxidative cross-coupling reactions of substituted o-aminophenols were catalyzed by a commercial laccase to produce non-symmetrically substituted phenoxazinones for the first time. Identification by (1)H-, (13)C- and (31)P-NMR, and by HPLC-PDA and HPLC-MS/MS of exclusively two kinds of substituted phenoxazinones out of four potential heterocyclic frameworks was confirmed by a DFT study. The redox-properties of the substrates, their relative rates of conversion and the rigid docking of selected substrates led to a revisited mechanistic pathway for phenoxazinones biosynthesis. Our suggestions concern both the first formal two-electron oxidation by laccase and the first intermolecular 1,4-conjugated addition which secures the observed regioselectivity.
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Affiliation(s)
- Frédéric Bruyneel
- Institute of Condensed Matter and Nanosciences, Organic and Medicinal Chemistry, Université catholique de Louvain, Louvain-la-Neuve, Belgium
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