Serveur d'exploration sur le phanerochaete

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Putative endoglucanase PcGH5 from Phanerochaete chrysosporium is a β-xylosidase that cleaves xylans in synergistic action with endo-xylanase.

Identifieur interne : 000253 ( Main/Exploration ); précédent : 000252; suivant : 000254

Putative endoglucanase PcGH5 from Phanerochaete chrysosporium is a β-xylosidase that cleaves xylans in synergistic action with endo-xylanase.

Auteurs : Nguyen Duc Huy [Corée du Sud] ; Cu Le Nguyen [Corée du Sud] ; Jeong-Woo Seo [Corée du Sud] ; Dae-Hyuk Kim [Corée du Sud] ; Seung-Moon Park [Corée du Sud]

Source :

RBID : pubmed:25300189

Descripteurs français

English descriptors

Abstract

A predicted endoglucanase gene (PcGH5) was cloned from Phanerochaete chysosporium, and expressed in Pichia pastoris. Although PcGH5 showed similarity with the conserved domains of a cellulase superfamily GH5, a β-glucosidase/6-phospho-β-glucosidase/β-galactosidase superfamily, and an endoglucanase, recombinant PcGH5 exhibited a β-xylosidase activity, rather than endoglucanase activity. Therefore, the predicted gene was named as PcXyl5. Further characterization of recombinant PcXyl5 showed not only catalysis of the hydrolysis of xylo-oligomers to xylose, but also displayed transglycosylation activity using alcohol as a receptor. Optimum pH of rPcXyl5 was found to be 5.5, whereas optimum temperature was 50°C. rPcXyl5 increased reducing sugar release of birchwood xylan, beechwood xylan, and arabinoxylan by 6.4%, 13%, 15.8%, respectively, in synergistic action with endo-xylanase. Interestingly, the late addition of rPcXyl5 into reaction with endo-xylanase resulted in a larger increase of reducing sugar release from pretreated barley straw that addition at the start or by treatment with endo-xylanases alone. The increases observed were 6.3% and 13.8%, respectively, showing a great potential application for hemicellulose saccharification.

DOI: 10.1016/j.jbiosc.2014.09.012
PubMed: 25300189


Affiliations:


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Le document en format XML

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<term>Biocatalysis (MeSH)</term>
<term>Cellulase (chemistry)</term>
<term>Cellulase (metabolism)</term>
<term>Cloning, Molecular (MeSH)</term>
<term>Endo-1,4-beta Xylanases (chemistry)</term>
<term>Endo-1,4-beta Xylanases (genetics)</term>
<term>Endo-1,4-beta Xylanases (isolation & purification)</term>
<term>Endo-1,4-beta Xylanases (metabolism)</term>
<term>Glycosylation (MeSH)</term>
<term>Hordeum (chemistry)</term>
<term>Hydrogen-Ion Concentration (MeSH)</term>
<term>Hydrolysis (MeSH)</term>
<term>Phanerochaete (enzymology)</term>
<term>Phanerochaete (genetics)</term>
<term>Pichia (metabolism)</term>
<term>Polysaccharides (metabolism)</term>
<term>Protein Structure, Tertiary (MeSH)</term>
<term>Substrate Specificity (MeSH)</term>
<term>Temperature (MeSH)</term>
<term>Xylans (metabolism)</term>
<term>Xylose (metabolism)</term>
<term>Xylosidases (chemistry)</term>
<term>Xylosidases (genetics)</term>
<term>Xylosidases (isolation & purification)</term>
<term>Xylosidases (metabolism)</term>
<term>beta-Galactosidase (chemistry)</term>
<term>beta-Galactosidase (metabolism)</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr">
<term>Biocatalyse (MeSH)</term>
<term>Cellulase (composition chimique)</term>
<term>Cellulase (métabolisme)</term>
<term>Clonage moléculaire (MeSH)</term>
<term>Concentration en ions d'hydrogène (MeSH)</term>
<term>Endo-1,4-beta xylanases (composition chimique)</term>
<term>Endo-1,4-beta xylanases (génétique)</term>
<term>Endo-1,4-beta xylanases (isolement et purification)</term>
<term>Endo-1,4-beta xylanases (métabolisme)</term>
<term>Glycosylation (MeSH)</term>
<term>Hordeum (composition chimique)</term>
<term>Hydrolyse (MeSH)</term>
<term>Phanerochaete (enzymologie)</term>
<term>Phanerochaete (génétique)</term>
<term>Pichia (métabolisme)</term>
<term>Polyosides (métabolisme)</term>
<term>Spécificité du substrat (MeSH)</term>
<term>Structure tertiaire des protéines (MeSH)</term>
<term>Température (MeSH)</term>
<term>Xylanes (métabolisme)</term>
<term>Xylose (métabolisme)</term>
<term>Xylosidases (composition chimique)</term>
<term>Xylosidases (génétique)</term>
<term>Xylosidases (isolement et purification)</term>
<term>Xylosidases (métabolisme)</term>
<term>beta-Galactosidase (composition chimique)</term>
<term>beta-Galactosidase (métabolisme)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en">
<term>Cellulase</term>
<term>Endo-1,4-beta Xylanases</term>
<term>Xylosidases</term>
<term>beta-Galactosidase</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en">
<term>Endo-1,4-beta Xylanases</term>
<term>Xylosidases</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="isolation & purification" xml:lang="en">
<term>Endo-1,4-beta Xylanases</term>
<term>Xylosidases</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en">
<term>Cellulase</term>
<term>Endo-1,4-beta Xylanases</term>
<term>Polysaccharides</term>
<term>Xylans</term>
<term>Xylose</term>
<term>Xylosidases</term>
<term>beta-Galactosidase</term>
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<term>Hordeum</term>
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<term>Cellulase</term>
<term>Endo-1,4-beta xylanases</term>
<term>Hordeum</term>
<term>Xylosidases</term>
<term>beta-Galactosidase</term>
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<keywords scheme="MESH" qualifier="enzymologie" xml:lang="fr">
<term>Phanerochaete</term>
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<term>Phanerochaete</term>
</keywords>
<keywords scheme="MESH" qualifier="genetics" xml:lang="en">
<term>Phanerochaete</term>
</keywords>
<keywords scheme="MESH" qualifier="génétique" xml:lang="fr">
<term>Endo-1,4-beta xylanases</term>
<term>Phanerochaete</term>
<term>Xylosidases</term>
</keywords>
<keywords scheme="MESH" qualifier="isolement et purification" xml:lang="fr">
<term>Endo-1,4-beta xylanases</term>
<term>Xylosidases</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en">
<term>Pichia</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr">
<term>Cellulase</term>
<term>Endo-1,4-beta xylanases</term>
<term>Pichia</term>
<term>Polyosides</term>
<term>Xylanes</term>
<term>Xylose</term>
<term>Xylosidases</term>
<term>beta-Galactosidase</term>
</keywords>
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<term>Biocatalysis</term>
<term>Cloning, Molecular</term>
<term>Glycosylation</term>
<term>Hydrogen-Ion Concentration</term>
<term>Hydrolysis</term>
<term>Protein Structure, Tertiary</term>
<term>Substrate Specificity</term>
<term>Temperature</term>
</keywords>
<keywords scheme="MESH" xml:lang="fr">
<term>Biocatalyse</term>
<term>Clonage moléculaire</term>
<term>Concentration en ions d'hydrogène</term>
<term>Glycosylation</term>
<term>Hydrolyse</term>
<term>Spécificité du substrat</term>
<term>Structure tertiaire des protéines</term>
<term>Température</term>
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<front>
<div type="abstract" xml:lang="en">A predicted endoglucanase gene (PcGH5) was cloned from Phanerochaete chysosporium, and expressed in Pichia pastoris. Although PcGH5 showed similarity with the conserved domains of a cellulase superfamily GH5, a β-glucosidase/6-phospho-β-glucosidase/β-galactosidase superfamily, and an endoglucanase, recombinant PcGH5 exhibited a β-xylosidase activity, rather than endoglucanase activity. Therefore, the predicted gene was named as PcXyl5. Further characterization of recombinant PcXyl5 showed not only catalysis of the hydrolysis of xylo-oligomers to xylose, but also displayed transglycosylation activity using alcohol as a receptor. Optimum pH of rPcXyl5 was found to be 5.5, whereas optimum temperature was 50°C. rPcXyl5 increased reducing sugar release of birchwood xylan, beechwood xylan, and arabinoxylan by 6.4%, 13%, 15.8%, respectively, in synergistic action with endo-xylanase. Interestingly, the late addition of rPcXyl5 into reaction with endo-xylanase resulted in a larger increase of reducing sugar release from pretreated barley straw that addition at the start or by treatment with endo-xylanases alone. The increases observed were 6.3% and 13.8%, respectively, showing a great potential application for hemicellulose saccharification. </div>
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<AbstractText>A predicted endoglucanase gene (PcGH5) was cloned from Phanerochaete chysosporium, and expressed in Pichia pastoris. Although PcGH5 showed similarity with the conserved domains of a cellulase superfamily GH5, a β-glucosidase/6-phospho-β-glucosidase/β-galactosidase superfamily, and an endoglucanase, recombinant PcGH5 exhibited a β-xylosidase activity, rather than endoglucanase activity. Therefore, the predicted gene was named as PcXyl5. Further characterization of recombinant PcXyl5 showed not only catalysis of the hydrolysis of xylo-oligomers to xylose, but also displayed transglycosylation activity using alcohol as a receptor. Optimum pH of rPcXyl5 was found to be 5.5, whereas optimum temperature was 50°C. rPcXyl5 increased reducing sugar release of birchwood xylan, beechwood xylan, and arabinoxylan by 6.4%, 13%, 15.8%, respectively, in synergistic action with endo-xylanase. Interestingly, the late addition of rPcXyl5 into reaction with endo-xylanase resulted in a larger increase of reducing sugar release from pretreated barley straw that addition at the start or by treatment with endo-xylanases alone. The increases observed were 6.3% and 13.8%, respectively, showing a great potential application for hemicellulose saccharification. </AbstractText>
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<LastName>Huy</LastName>
<ForeName>Nguyen Duc</ForeName>
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<ForeName>Cu Le</ForeName>
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<NameOfSubstance UI="D011134">Polysaccharides</NameOfSubstance>
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<Chemical>
<RegistryNumber>0</RegistryNumber>
<NameOfSubstance UI="D014990">Xylans</NameOfSubstance>
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<Chemical>
<RegistryNumber>8024-50-8</RegistryNumber>
<NameOfSubstance UI="C007916">hemicellulose</NameOfSubstance>
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<Chemical>
<RegistryNumber>9040-27-1</RegistryNumber>
<NameOfSubstance UI="C085118">arabinoxylan</NameOfSubstance>
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<Chemical>
<RegistryNumber>A1TA934AKO</RegistryNumber>
<NameOfSubstance UI="D014994">Xylose</NameOfSubstance>
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<Chemical>
<RegistryNumber>EC 3.2.1.-</RegistryNumber>
<NameOfSubstance UI="D014995">Xylosidases</NameOfSubstance>
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<Chemical>
<RegistryNumber>EC 3.2.1.23</RegistryNumber>
<NameOfSubstance UI="D001616">beta-Galactosidase</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>EC 3.2.1.37</RegistryNumber>
<NameOfSubstance UI="C026579">exo-1,4-beta-D-xylosidase</NameOfSubstance>
</Chemical>
<Chemical>
<RegistryNumber>EC 3.2.1.4</RegistryNumber>
<NameOfSubstance UI="D002480">Cellulase</NameOfSubstance>
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<Chemical>
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<DescriptorName UI="D043364" MajorTopicYN="N">Endo-1,4-beta Xylanases</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D006031" MajorTopicYN="N">Glycosylation</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D001467" MajorTopicYN="N">Hordeum</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D006863" MajorTopicYN="N">Hydrogen-Ion Concentration</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D006868" MajorTopicYN="N">Hydrolysis</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D020075" MajorTopicYN="N">Phanerochaete</DescriptorName>
<QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D010843" MajorTopicYN="N">Pichia</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D011134" MajorTopicYN="N">Polysaccharides</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D017434" MajorTopicYN="N">Protein Structure, Tertiary</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D013379" MajorTopicYN="N">Substrate Specificity</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D013696" MajorTopicYN="N">Temperature</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014990" MajorTopicYN="N">Xylans</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014994" MajorTopicYN="N">Xylose</DescriptorName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D014995" MajorTopicYN="N">Xylosidases</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
<QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName>
<QualifierName UI="Q000302" MajorTopicYN="N">isolation & purification</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D001616" MajorTopicYN="N">beta-Galactosidase</DescriptorName>
<QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName>
<QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="N">Glycoside hydrolase family 5</Keyword>
<Keyword MajorTopicYN="N">Hemicellulose</Keyword>
<Keyword MajorTopicYN="N">Phanerochaete chrysosporium</Keyword>
<Keyword MajorTopicYN="N">Xylan</Keyword>
<Keyword MajorTopicYN="N">Xylosidase</Keyword>
</KeywordList>
</MedlineCitation>
<PubmedData>
<History>
<PubMedPubDate PubStatus="received">
<Year>2014</Year>
<Month>05</Month>
<Day>27</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="revised">
<Year>2014</Year>
<Month>08</Month>
<Day>12</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="accepted">
<Year>2014</Year>
<Month>09</Month>
<Day>14</Day>
</PubMedPubDate>
<PubMedPubDate PubStatus="entrez">
<Year>2014</Year>
<Month>10</Month>
<Day>11</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="pubmed">
<Year>2014</Year>
<Month>10</Month>
<Day>11</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
<PubMedPubDate PubStatus="medline">
<Year>2015</Year>
<Month>7</Month>
<Day>7</Day>
<Hour>6</Hour>
<Minute>0</Minute>
</PubMedPubDate>
</History>
<PublicationStatus>ppublish</PublicationStatus>
<ArticleIdList>
<ArticleId IdType="pubmed">25300189</ArticleId>
<ArticleId IdType="pii">S1389-1723(14)00347-8</ArticleId>
<ArticleId IdType="doi">10.1016/j.jbiosc.2014.09.012</ArticleId>
</ArticleIdList>
</PubmedData>
</pubmed>
<affiliations>
<list>
<country>
<li>Corée du Sud</li>
</country>
</list>
<tree>
<country name="Corée du Sud">
<noRegion>
<name sortKey="Huy, Nguyen Duc" sort="Huy, Nguyen Duc" uniqKey="Huy N" first="Nguyen Duc" last="Huy">Nguyen Duc Huy</name>
</noRegion>
<name sortKey="Kim, Dae Hyuk" sort="Kim, Dae Hyuk" uniqKey="Kim D" first="Dae-Hyuk" last="Kim">Dae-Hyuk Kim</name>
<name sortKey="Nguyen, Cu Le" sort="Nguyen, Cu Le" uniqKey="Nguyen C" first="Cu Le" last="Nguyen">Cu Le Nguyen</name>
<name sortKey="Park, Seung Moon" sort="Park, Seung Moon" uniqKey="Park S" first="Seung-Moon" last="Park">Seung-Moon Park</name>
<name sortKey="Seo, Jeong Woo" sort="Seo, Jeong Woo" uniqKey="Seo J" first="Jeong-Woo" last="Seo">Jeong-Woo Seo</name>
</country>
</tree>
</affiliations>
</record>

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