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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1990-5-23
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pubmed:abstractText |
The meta-cleavage operon of TOL plasmid pWW0 of Pseudomonas putida encodes a set of enzymes which transform benzoate/toluates to Krebs cycle intermediates via extradiol (meta-) cleavage of (methyl)catechol. The genetic organization of the operon was characterized by cloning of the meta-cleavage genes into an expression vector and identification of their products in Escherichia coli maxicells. This analysis showed that the meta-cleavage operon contains 13 genes whose order and products (in kilodaltons) are xylX(57)-xylY(20)-xylZ(39)-xylL(28)-xylT(1 2)-xylE(36)-xylG(60)-xylF(34)- xylJ(28)-xylQ(42)-xylK(39)-xylI(29)-xylH(4 ). The xylXYZ genes encode three subunits of toluate 1,2-dioxygenase. The xylL, xylE, xylG, xylF, xylJ, xylK, xylI, and xylH genes encode 1,2-dihydroxy-3,5-cyclohexadiene-1-carboxylate dehydrogenase, catechol 2,3-dioxygenase, 2-hydroxymuconic semialdehyde dehydrogenase, 2-hydroxymuconic semialdehyde hydrolase, 2-oxopent-4-enoate hydratase, 4-hydroxy-2-oxovalerate aldolase, 4-oxalocrotonate decarboxylase and 4-oxaloccotonate tautomerase, respectively. The functions of xylT and xylQ are not known at present. The comparison of the coding capacity and the sizes of the products of the meta-cleavage operon genes indicated that most of the DNA between xylX and xylH consists of coding sequences.
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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 |
Mar
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pubmed:issn |
0026-8925
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
221
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
113-20
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2183008-Bacterial Proteins,
pubmed-meshheading:2183008-Cloning, Molecular,
pubmed-meshheading:2183008-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:2183008-Escherichia coli,
pubmed-meshheading:2183008-Genes, Bacterial,
pubmed-meshheading:2183008-Operon,
pubmed-meshheading:2183008-Plasmids,
pubmed-meshheading:2183008-Pseudomonas,
pubmed-meshheading:2183008-Restriction Mapping
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pubmed:year |
1990
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pubmed:articleTitle |
The meta cleavage operon of TOL degradative plasmid pWW0 comprises 13 genes.
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pubmed:affiliation |
Department of Medical Biochemistry, University of Geneva, Switzerland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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