Source:http://linkedlifedata.com/resource/pubmed/id/11356138
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
Pt 2
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pubmed:dateCreated |
2001-5-17
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pubmed:abstractText |
Lignin peroxidase (LiP) and manganese peroxidase (MnP) have been investigated in Phanerochaete chrysosporium. A third ligninolytic peroxidase has been described in Pleurotus and Bjerkandera. Two of these versatile peroxidases (VPs) have been cloned, sequenced and characterized. They have high affinity for Mn(2+), hydroquinones and dyes, and also oxidize veratryl alcohol, dimethoxybenzene and lignin dimers. The deduced sequences show higher identity with Ph. chrysosporium LiP than MnP, but the molecular models obtained include a Mn(2+)-binding site. Concerning aromatic substrate oxidation, Pl. eryngii VP shows a putative long-range electron transfer pathway from an exposed trytophan to haem. Mutagenesis and chemical modification of this tryptophan and the acidic residues forming the Mn(2+)-binding site confirmed their role in catalysis. The existence of several substrate oxidation sites is supported further by biochemical evidence. Residue conservation in other fungal peroxidases is discussed.
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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 |
May
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pubmed:issn |
0300-5127
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
29
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
116-22
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11356138-Binding Sites,
pubmed-meshheading:11356138-Cloning, Molecular,
pubmed-meshheading:11356138-Lignin,
pubmed-meshheading:11356138-Models, Molecular,
pubmed-meshheading:11356138-Oxidation-Reduction,
pubmed-meshheading:11356138-Peroxidases,
pubmed-meshheading:11356138-Pleurotus,
pubmed-meshheading:11356138-Protein Conformation,
pubmed-meshheading:11356138-Substrate Specificity
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pubmed:year |
2001
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pubmed:articleTitle |
A new versatile peroxidase from Pleurotus.
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pubmed:affiliation |
Centro de Investigaciones Biológicas, CSIC, Velázquez 144, E-28006 Madrid, Spain.
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pubmed:publicationType |
Journal Article,
Review,
Research Support, Non-U.S. Gov't
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