Molecular cloning and characterization of a GH11 endoxylanase from Chaetomium globosum, and its use in enzymatic pretreatment of biomass

An endo-1,4-β-xylanase gene, xylcg , was cloned from Chaetomium globosum and successfully expressed in Escherichia coli . The complete gene of 675 bp was amplified, cloned into the pET 28(a) vector, and expressed. The optimal conditions for the highest activity of the purified recombinant XylCg were...

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Veröffentlicht in:Applied microbiology and biotechnology 2013-08, Vol.97 (16), p.7205-7214
Hauptverfasser: Singh, Raushan Kumar, Tiwari, Manish Kumar, Kim, Dongwook, Kang, Yun Chan, Ramachandran, Priyadharshini, Lee, Jung-Kul
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container_start_page 7205
container_title Applied microbiology and biotechnology
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creator Singh, Raushan Kumar
Tiwari, Manish Kumar
Kim, Dongwook
Kang, Yun Chan
Ramachandran, Priyadharshini
Lee, Jung-Kul
description An endo-1,4-β-xylanase gene, xylcg , was cloned from Chaetomium globosum and successfully expressed in Escherichia coli . The complete gene of 675 bp was amplified, cloned into the pET 28(a) vector, and expressed. The optimal conditions for the highest activity of the purified recombinant XylCg were observed at a temperature of 40 °C and pH of 5.5. Using oat-spelt xylan, the determined K m , V max , and k cat / K m values were 0.243 mg ml −1 , 4,530 U mg −1 protein, and 7,640 ml s −1  mg −1 , respectively. A homology model and sequence analysis of XylCg, along with the biochemical properties, confirmed that XylCg belongs to the GH11 family. Rice straw pretreated with XylCg showed 30 % higher conversion yield than the rice straw pretreated with a commercial xylanase. Although xylanases have been characterized from fungal and bacterial sources, C . globosum XylCg is distinguished from other xylanases by its high catalytic efficiency and its effectiveness in the pretreatment of lignocellulosic biomass.
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The complete gene of 675 bp was amplified, cloned into the pET 28(a) vector, and expressed. The optimal conditions for the highest activity of the purified recombinant XylCg were observed at a temperature of 40 °C and pH of 5.5. Using oat-spelt xylan, the determined K m , V max , and k cat / K m values were 0.243 mg ml −1 , 4,530 U mg −1 protein, and 7,640 ml s −1  mg −1 , respectively. A homology model and sequence analysis of XylCg, along with the biochemical properties, confirmed that XylCg belongs to the GH11 family. Rice straw pretreated with XylCg showed 30 % higher conversion yield than the rice straw pretreated with a commercial xylanase. Although xylanases have been characterized from fungal and bacterial sources, C . globosum XylCg is distinguished from other xylanases by its high catalytic efficiency and its effectiveness in the pretreatment of lignocellulosic biomass.</description><identifier>ISSN: 0175-7598</identifier><identifier>EISSN: 1432-0614</identifier><identifier>DOI: 10.1007/s00253-012-4577-z</identifier><identifier>PMID: 23184220</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Analysis ; Avena - chemistry ; Bacteria ; Biomass ; Biomedical and Life Sciences ; Biosynthesis ; Biotechnologically Relevant Enzymes and Proteins ; Biotechnology ; Chaetomium - enzymology ; Chaetomium - genetics ; Chaetomium globosum ; Cloning ; Cloning, Molecular ; E coli ; Endo-1,4-beta Xylanases - chemistry ; Endo-1,4-beta Xylanases - genetics ; Endo-1,4-beta Xylanases - isolation &amp; purification ; Endo-1,4-beta Xylanases - metabolism ; Enzyme Stability ; Enzymes ; Escherichia coli ; Escherichia coli - genetics ; Escherichia coli - metabolism ; Fungi ; Gene Expression ; Genes ; Genetic aspects ; Genetic engineering ; Hydrogen-Ion Concentration ; Kinetics ; Life Sciences ; Lignin - metabolism ; Microbial Genetics and Genomics ; Microbiology ; Models, Molecular ; Oryza - chemistry ; Oryza sativa ; Plant Stems - chemistry ; Pretreatment ; Protein Conformation ; Proteins ; Recombinant Proteins - chemistry ; Recombinant Proteins - genetics ; Recombinant Proteins - isolation &amp; purification ; Recombinant Proteins - metabolism ; Rice ; Rice straw ; Straw ; Studies ; Temperature ; Xylanase ; Xylans - metabolism</subject><ispartof>Applied microbiology and biotechnology, 2013-08, Vol.97 (16), p.7205-7214</ispartof><rights>Springer-Verlag Berlin Heidelberg 2012</rights><rights>COPYRIGHT 2013 Springer</rights><rights>Springer-Verlag 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c576t-51c62ae7bb5a317f8e0b646422b5adeed8cec6352446d9e552053be026d5007f3</citedby><cites>FETCH-LOGICAL-c576t-51c62ae7bb5a317f8e0b646422b5adeed8cec6352446d9e552053be026d5007f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00253-012-4577-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00253-012-4577-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23184220$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Singh, Raushan Kumar</creatorcontrib><creatorcontrib>Tiwari, Manish Kumar</creatorcontrib><creatorcontrib>Kim, Dongwook</creatorcontrib><creatorcontrib>Kang, Yun Chan</creatorcontrib><creatorcontrib>Ramachandran, Priyadharshini</creatorcontrib><creatorcontrib>Lee, Jung-Kul</creatorcontrib><title>Molecular cloning and characterization of a GH11 endoxylanase from Chaetomium globosum, and its use in enzymatic pretreatment of biomass</title><title>Applied microbiology and biotechnology</title><addtitle>Appl Microbiol Biotechnol</addtitle><addtitle>Appl Microbiol Biotechnol</addtitle><description>An endo-1,4-β-xylanase gene, xylcg , was cloned from Chaetomium globosum and successfully expressed in Escherichia coli . 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purification</subject><subject>Recombinant Proteins - metabolism</subject><subject>Rice</subject><subject>Rice straw</subject><subject>Straw</subject><subject>Studies</subject><subject>Temperature</subject><subject>Xylanase</subject><subject>Xylans - metabolism</subject><issn>0175-7598</issn><issn>1432-0614</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNqNkl1rFDEYhQdR7Fr9Ad5IwJsKTs33zFyWRdtCRfDjOmQy72xTJsmaZKC7v8CfbdatHyuKEkjgzXMOnORU1VOCTwnGzauEMRWsxoTWXDRNvb1XLQhntMaS8PvVApNG1I3o2qPqUUo3uICtlA-rI8pIyynFi-rL2zCBmScdkZmCt36FtB-QudZRmwzRbnW2waMwIo3OLwhB4Idwu5m01wnQGINDy2sNOTg7O7SaQh_S7F5-c7E5oblQ1hfVduOKlUHrCDmCzg583tn2Njid0uPqwainBE_uzuPq05vXH5cX9dW788vl2VVtRCNzLYiRVEPT90Iz0owt4F5yWcKUwQAwtAaMZIJyLocOhKBYsB4wlYMoTzay4-pk77uO4fMMKStnk4GpBIIwJ1WejAlWtu7fKCcda1gnyP-gQnSdaGVBn_-G3oQ5-pJ5R9GWUNySn9RKT6CsH0MuH7IzVWeMc9p0kvNCnf6BKmsAZ03wMNoyPxC8OBAUJsNtXuk5JXX54f0hS_asiSGlCKNaR-t03CiC1a5_at8_VWqldv1T26J5dhdu7h0MPxTfC1cAugdSufIriL-k_6vrV2yr44A</recordid><startdate>20130801</startdate><enddate>20130801</enddate><creator>Singh, Raushan Kumar</creator><creator>Tiwari, Manish Kumar</creator><creator>Kim, Dongwook</creator><creator>Kang, Yun Chan</creator><creator>Ramachandran, Priyadharshini</creator><creator>Lee, Jung-Kul</creator><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><scope>3V.</scope><scope>7QL</scope><scope>7T7</scope><scope>7WY</scope><scope>7WZ</scope><scope>7X7</scope><scope>7XB</scope><scope>87Z</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FRNLG</scope><scope>FYUFA</scope><scope>F~G</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K60</scope><scope>K6~</scope><scope>K9.</scope><scope>L.-</scope><scope>LK8</scope><scope>M0C</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7N</scope><scope>M7P</scope><scope>P64</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>7QO</scope><scope>7TB</scope><scope>7U5</scope><scope>F28</scope><scope>L7M</scope></search><sort><creationdate>20130801</creationdate><title>Molecular cloning and characterization of a GH11 endoxylanase from Chaetomium globosum, and its use in enzymatic pretreatment of biomass</title><author>Singh, Raushan Kumar ; 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The complete gene of 675 bp was amplified, cloned into the pET 28(a) vector, and expressed. The optimal conditions for the highest activity of the purified recombinant XylCg were observed at a temperature of 40 °C and pH of 5.5. Using oat-spelt xylan, the determined K m , V max , and k cat / K m values were 0.243 mg ml −1 , 4,530 U mg −1 protein, and 7,640 ml s −1  mg −1 , respectively. A homology model and sequence analysis of XylCg, along with the biochemical properties, confirmed that XylCg belongs to the GH11 family. Rice straw pretreated with XylCg showed 30 % higher conversion yield than the rice straw pretreated with a commercial xylanase. Although xylanases have been characterized from fungal and bacterial sources, C . globosum XylCg is distinguished from other xylanases by its high catalytic efficiency and its effectiveness in the pretreatment of lignocellulosic biomass.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>23184220</pmid><doi>10.1007/s00253-012-4577-z</doi><tpages>10</tpages></addata></record>
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subjects Analysis
Avena - chemistry
Bacteria
Biomass
Biomedical and Life Sciences
Biosynthesis
Biotechnologically Relevant Enzymes and Proteins
Biotechnology
Chaetomium - enzymology
Chaetomium - genetics
Chaetomium globosum
Cloning
Cloning, Molecular
E coli
Endo-1,4-beta Xylanases - chemistry
Endo-1,4-beta Xylanases - genetics
Endo-1,4-beta Xylanases - isolation & purification
Endo-1,4-beta Xylanases - metabolism
Enzyme Stability
Enzymes
Escherichia coli
Escherichia coli - genetics
Escherichia coli - metabolism
Fungi
Gene Expression
Genes
Genetic aspects
Genetic engineering
Hydrogen-Ion Concentration
Kinetics
Life Sciences
Lignin - metabolism
Microbial Genetics and Genomics
Microbiology
Models, Molecular
Oryza - chemistry
Oryza sativa
Plant Stems - chemistry
Pretreatment
Protein Conformation
Proteins
Recombinant Proteins - chemistry
Recombinant Proteins - genetics
Recombinant Proteins - isolation & purification
Recombinant Proteins - metabolism
Rice
Rice straw
Straw
Studies
Temperature
Xylanase
Xylans - metabolism
title Molecular cloning and characterization of a GH11 endoxylanase from Chaetomium globosum, and its use in enzymatic pretreatment of biomass
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