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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1995-1-17
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pubmed:abstractText |
A membrane-associated aromatic nitroreductase activity was identified in cell-free extracts of the lignin-degrading fungus Phanerochaete chrysosporium. The enzyme catalyzed the nitro group reduction of 1,3-dinitrobenzene, 2,4-dinitrotoluene, 2,4,6-trinitrotoluene, 1-chloro-2,4-dinitrobenzene, and 2,4-dichloro-1-nitrobenzene. The corresponding hydroxylamines and/or amines were identified as reaction products by HPLC and/or GC-MS. 1-Nitroso-3-nitrobenzene and 1-hydroxylamino-3-nitrobenzene also were reduced by the enzyme, suggesting they were intermediates in the reaction. The enzyme required NAD(P)H as a cosubstrate and the optimal pH and temperature for the reaction were 6.5 and 50 degrees C, respectively. Enzyme activity was not observed in the presence of molecular oxygen. The membrane-associated enzyme could be solubilized with the nonionic detergent Triton X-100.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
205
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
298-304
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7999039-Basidiomycota,
pubmed-meshheading:7999039-Biodegradation, Environmental,
pubmed-meshheading:7999039-Catalysis,
pubmed-meshheading:7999039-Dinitrobenzenes,
pubmed-meshheading:7999039-Nitrobenzenes,
pubmed-meshheading:7999039-Nitroreductases,
pubmed-meshheading:7999039-Oxidation-Reduction
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pubmed:year |
1994
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pubmed:articleTitle |
Aromatic nitroreductase from the basidiomycete Phanerochaete chrysosporium.
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pubmed:affiliation |
Department of Chemistry, Biochemistry, and Molecular Biology, Oregon Graduate Institute of Science & Technology, Portland 97291-1000.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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