Heat Shock Induction of Manganese Peroxidase Gene Transcription in Phanerochaete chrysosporium.
Identifieur interne : 000D76 ( Main/Curation ); précédent : 000D75; suivant : 000D77Heat Shock Induction of Manganese Peroxidase Gene Transcription in Phanerochaete chrysosporium.
Auteurs : J A Brown [États-Unis] ; D. Li ; M. Alic ; M H GoldSource :
- Applied and environmental microbiology [ 0099-2240 ] ; 1993.
Abstract
The expression of manganese peroxidase (MnP) in nitrogen-limited cultures of Phanerochaete chrysosporium is regulated by heat shock at the level of gene transcription. Nitrogen limitation and manganous ion [Mn(II)] previously have been shown to regulate mnp gene transcription. Northern (RNA) blot analysis demonstrates that 45 degrees C heat shock results in the accumulation of mnp mRNA, even in cells grown in the absence of Mn. Heat shock induces mnp gene transcription in 4- or 5-day-old cells, and mnp mRNA is detectable after 15 min at 45 degrees C. Maximum accumulation of mnp mRNA is observed 1 to 2 h after transfer of cultures to 45 degrees C. Two hours after heat shock-induced cultures grown in the absence of Mn are transferred back to 37 degrees C, mnp mRNA is no longer detectable. Higher levels of mnp mRNA are obtained with simultaneous induction by Mn and heat shock than by either treatment alone. Neither MnP enzyme activity nor protein is detectable in heat-shocked cultures grown in the absence of Mn. However, higher MnP activity is found in the extracellular medium of cultures induced by both heat shock and Mn than in the medium of cultures induced by Mn alone. These results suggest that the putative heat shock elements found in the promoter region of the mnp genes are physiologically functional and that Mn may be required for a posttranscriptional step of MnP production under heat shock conditions.
DOI: 10.1128/AEM.59.12.4295-4299.1993
PubMed: 16349125
PubMed Central: PMC195899
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Alic</name></author><author><name sortKey="Gold, M H" sort="Gold, M H" uniqKey="Gold M" first="M H" last="Gold">M H Gold</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1993">1993</date><idno type="RBID">pubmed:16349125</idno><idno type="pmid">16349125</idno><idno type="pmc">PMC195899</idno><idno type="doi">10.1128/AEM.59.12.4295-4299.1993</idno><idno type="wicri:Area/Main/Corpus">000D76</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000D76</idno><idno type="wicri:Area/Main/Curation">000D76</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000D76</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Heat Shock Induction of Manganese Peroxidase Gene Transcription in Phanerochaete chrysosporium.</title><author><name sortKey="Brown, J A" sort="Brown, J A" uniqKey="Brown J" first="J A" last="Brown">J A Brown</name><affiliation wicri:level="2"><nlm:affiliation>Department of Chemistry, Biochemistry, and Molecular Biology, Oregon Graduate Institute of Science & Technology, P.O. Box 9100, Portland, Oregon 97291-1000.</nlm:affiliation><country xml:lang="fr">États-Unis</country><placeName><region type="state">Oregon</region></placeName><wicri:cityArea>Department of Chemistry, Biochemistry, and Molecular Biology, Oregon Graduate Institute of Science & Technology, P.O. Box 9100, Portland</wicri:cityArea></affiliation></author><author><name sortKey="Li, D" sort="Li, D" uniqKey="Li D" first="D" last="Li">D. Li</name></author><author><name sortKey="Alic, M" sort="Alic, M" uniqKey="Alic M" first="M" last="Alic">M. Alic</name></author><author><name sortKey="Gold, M H" sort="Gold, M H" uniqKey="Gold M" first="M H" last="Gold">M H Gold</name></author></analytic><series><title level="j">Applied and environmental microbiology</title><idno type="ISSN">0099-2240</idno><imprint><date when="1993" type="published">1993</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The expression of manganese peroxidase (MnP) in nitrogen-limited cultures of Phanerochaete chrysosporium is regulated by heat shock at the level of gene transcription. Nitrogen limitation and manganous ion [Mn(II)] previously have been shown to regulate mnp gene transcription. Northern (RNA) blot analysis demonstrates that 45 degrees C heat shock results in the accumulation of mnp mRNA, even in cells grown in the absence of Mn. Heat shock induces mnp gene transcription in 4- or 5-day-old cells, and mnp mRNA is detectable after 15 min at 45 degrees C. Maximum accumulation of mnp mRNA is observed 1 to 2 h after transfer of cultures to 45 degrees C. Two hours after heat shock-induced cultures grown in the absence of Mn are transferred back to 37 degrees C, mnp mRNA is no longer detectable. Higher levels of mnp mRNA are obtained with simultaneous induction by Mn and heat shock than by either treatment alone. Neither MnP enzyme activity nor protein is detectable in heat-shocked cultures grown in the absence of Mn. However, higher MnP activity is found in the extracellular medium of cultures induced by both heat shock and Mn than in the medium of cultures induced by Mn alone. These results suggest that the putative heat shock elements found in the promoter region of the mnp genes are physiologically functional and that Mn may be required for a posttranscriptional step of MnP production under heat shock conditions.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">16349125</PMID><DateCompleted><Year>2010</Year><Month>06</Month><Day>25</Day></DateCompleted><DateRevised><Year>2020</Year><Month>07</Month><Day>27</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0099-2240</ISSN><JournalIssue CitedMedium="Print"><Volume>59</Volume><Issue>12</Issue><PubDate><Year>1993</Year><Month>Dec</Month></PubDate></JournalIssue><Title>Applied and environmental microbiology</Title><ISOAbbreviation>Appl Environ Microbiol</ISOAbbreviation></Journal><ArticleTitle>Heat Shock Induction of Manganese Peroxidase Gene Transcription in Phanerochaete chrysosporium.</ArticleTitle><Pagination><MedlinePgn>4295-9</MedlinePgn></Pagination><Abstract><AbstractText>The expression of manganese peroxidase (MnP) in nitrogen-limited cultures of Phanerochaete chrysosporium is regulated by heat shock at the level of gene transcription. Nitrogen limitation and manganous ion [Mn(II)] previously have been shown to regulate mnp gene transcription. Northern (RNA) blot analysis demonstrates that 45 degrees C heat shock results in the accumulation of mnp mRNA, even in cells grown in the absence of Mn. Heat shock induces mnp gene transcription in 4- or 5-day-old cells, and mnp mRNA is detectable after 15 min at 45 degrees C. Maximum accumulation of mnp mRNA is observed 1 to 2 h after transfer of cultures to 45 degrees C. Two hours after heat shock-induced cultures grown in the absence of Mn are transferred back to 37 degrees C, mnp mRNA is no longer detectable. Higher levels of mnp mRNA are obtained with simultaneous induction by Mn and heat shock than by either treatment alone. Neither MnP enzyme activity nor protein is detectable in heat-shocked cultures grown in the absence of Mn. However, higher MnP activity is found in the extracellular medium of cultures induced by both heat shock and Mn than in the medium of cultures induced by Mn alone. These results suggest that the putative heat shock elements found in the promoter region of the mnp genes are physiologically functional and that Mn may be required for a posttranscriptional step of MnP production under heat shock conditions.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Brown</LastName><ForeName>J A</ForeName><Initials>JA</Initials><AffiliationInfo><Affiliation>Department of Chemistry, Biochemistry, and Molecular Biology, Oregon Graduate Institute of Science & Technology, P.O. 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