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http://hdl.handle.net/1843/55171| Type: | Artigo de Periódico |
| Title: | Trametes villosa Lignin Peroxidase (TvLiP): genetic and molecular characterization |
| Authors: | Rita Terezinha de Oliveira Carneiro Maíza Alves Lopes Marília Lôrdelo Cardoso Silva Verônica da Silva Santos Volnei Brito de Souza Aurizângela Oliveira de Sousa Carlos Priminho Pirovani Maria Gabriela Bello Koblitz Raquel Guimarães Benevides Aristóteles Góes Neto |
| Abstract: | White-rot basidiomycetes are the organisms that decompose lignin most efficiently, and Trametes villosa is a promising species for ligninolytic enzyme production. There are several publications on T. villosa applications for lignin degradation regarding the expression and secretion of laccase and manganese peroxidase (MnP) but no reports on the identification and characterization of lignin peroxidase (LiP), a relevant enzyme for the efficient breakdown of lignin. The object of this study was to identify and partially characterize, for the first time, gDNA, mRNA, and the corresponding lignin peroxidase (TvLiP) protein from T. villosa strain CCMB561 from the Brazilian semiarid region. The presence of ligninolytic enzymes produced by this strain grown in inducer media was qualitatively and quantitatively analyzed by spectrophotometry, qPCR, and dye fading using Remazol Brilliant Blue R. The spectrophotometric analysis showed that LiP activity was higher than that of MnP. The greatest LiP expression as measured by qPCR occurred on the 7th day, and the ABSA medium (agar, sugarcane bagasse, and ammonium sulfate) was the best that favored LiP expression. The amplification of the TvLiP gene median region covering approximately 50% of the T. versicolor LPGIV gene (87% identity); the presence of Trp199, Leu115, Asp193, Trp199, and Ala203 in the translated amplicon of the T. villosa mRNA; and the close phylogenetic relationship between TvLiP and T. versicolor LiP all indicate that the target enzyme is a lignin peroxidase. Therefore, T. villosa CCMB561 has great potential for use as a LiP, MnP, and Lac producer for industrial applications. |
| Subject: | Lignina Enzimas Basidiomycota - enzimologia |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | ICB - DEPARTAMENTO DE MICROBIOLOGIA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | http://dx.doi.org/10.4014/jmb.1606.06055 |
| URI: | http://hdl.handle.net/1843/55171 |
| Issue Date: | 2017 |
| metadata.dc.url.externa: | https://www.jmb.or.kr/journal/view.html?doi=10.4014/jmb.1606.06055 |
| metadata.dc.relation.ispartof: | Journal of microbiology and biotechnology |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Trametes villosa Lignin Peroxidase (TvLiP)_ Genetic and Molecular Characterization.pdf | 2.38 MB | Adobe PDF | View/Open |
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