Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome

Abstract Metagenomic data mining of the Nellore cattle rumen microbiota identified a new bifunctional enzyme, endo-1,4-β-xylanase/esterase, which was subsequently overexpressed in E. coli BL21 (DE3). This enzyme was stable at pH intervals of 5 to 6.5 and temperatures between 30 and 45 °C, and under...

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Main Authors: Gabriella Cavazzini Pavarina, Eliana Gertrudes de Macedo Lemos, Natália Sarmanho Monteiro Lima, João Martins Pizauro Jr.
Format: Article
Language:English
Published: Nature Portfolio 2021-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-89916-8
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author Gabriella Cavazzini Pavarina
Eliana Gertrudes de Macedo Lemos
Natália Sarmanho Monteiro Lima
João Martins Pizauro Jr.
author_facet Gabriella Cavazzini Pavarina
Eliana Gertrudes de Macedo Lemos
Natália Sarmanho Monteiro Lima
João Martins Pizauro Jr.
author_sort Gabriella Cavazzini Pavarina
collection DOAJ
description Abstract Metagenomic data mining of the Nellore cattle rumen microbiota identified a new bifunctional enzyme, endo-1,4-β-xylanase/esterase, which was subsequently overexpressed in E. coli BL21 (DE3). This enzyme was stable at pH intervals of 5 to 6.5 and temperatures between 30 and 45 °C, and under the test conditions, it had a Vmax of 30.959 ± 2.334 µmol/min/mg, Km of 3.6 ± 0.6 mM and kcat of 2.323 ± 175 s−1. Additionally, the results showed that the enzyme is tolerant to NaCl and organic solvents and therefore is suitable for industrial environments. Xylanases are widely applicable, and the synergistic activity of endo-1,4-β-xylanase/esterase in a single molecule will improve the degradation efficiency of heteroxylans via the creation of xylanase binding sites. Therefore, this new molecule has the potential for use in lignocellulosic biomass processing and as an animal feed food additive and could improve xylooligosaccharide production efficiency.
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spelling doaj.art-748b50ccd2b34acdb6bc13804254c4e42022-12-21T18:33:05ZengNature PortfolioScientific Reports2045-23222021-05-0111111310.1038/s41598-021-89916-8Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenomeGabriella Cavazzini Pavarina0Eliana Gertrudes de Macedo Lemos1Natália Sarmanho Monteiro Lima2João Martins Pizauro Jr.3Technology Department, School of Agricultural and Veterinarian Sciencess, Sao Paulo State University (Unesp)Technology Department, School of Agricultural and Veterinarian Sciencess, Sao Paulo State University (Unesp)Technology Department, School of Agricultural and Veterinarian Sciencess, Sao Paulo State University (Unesp)Technology Department, School of Agricultural and Veterinarian Sciencess, Sao Paulo State University (Unesp)Abstract Metagenomic data mining of the Nellore cattle rumen microbiota identified a new bifunctional enzyme, endo-1,4-β-xylanase/esterase, which was subsequently overexpressed in E. coli BL21 (DE3). This enzyme was stable at pH intervals of 5 to 6.5 and temperatures between 30 and 45 °C, and under the test conditions, it had a Vmax of 30.959 ± 2.334 µmol/min/mg, Km of 3.6 ± 0.6 mM and kcat of 2.323 ± 175 s−1. Additionally, the results showed that the enzyme is tolerant to NaCl and organic solvents and therefore is suitable for industrial environments. Xylanases are widely applicable, and the synergistic activity of endo-1,4-β-xylanase/esterase in a single molecule will improve the degradation efficiency of heteroxylans via the creation of xylanase binding sites. Therefore, this new molecule has the potential for use in lignocellulosic biomass processing and as an animal feed food additive and could improve xylooligosaccharide production efficiency.https://doi.org/10.1038/s41598-021-89916-8
spellingShingle Gabriella Cavazzini Pavarina
Eliana Gertrudes de Macedo Lemos
Natália Sarmanho Monteiro Lima
João Martins Pizauro Jr.
Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
Scientific Reports
title Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
title_full Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
title_fullStr Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
title_full_unstemmed Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
title_short Characterization of a new bifunctional endo-1,4-β-xylanase/esterase found in the rumen metagenome
title_sort characterization of a new bifunctional endo 1 4 β xylanase esterase found in the rumen metagenome
url https://doi.org/10.1038/s41598-021-89916-8
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