Source:http://linkedlifedata.com/resource/pubmed/id/19577910
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2010-5-14
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pubmed:databankReference | |
pubmed:abstractText |
Alcaligenes sp. strain O-1 inducibly deaminates 2-aminobenzenesulfonate (ABS) via dioxygenation to 3-sulfocatechol, which is desulfonated during meta ring-cleavage to yield 2-hydroxymuconate. This intermediate is transformed through the oxalocrotonate-branch of the sulfocatechol meta-pathway (Scm). The complete pathway is encoded on the 180-kb plasmid pSAH, 20kb of which was sequenced. Twenty open reading frames (ORFs) were detected. Two clusters (abs and scm) with degradative genes were surrounded by several transposon-related ORFs. The six genes of the abs cluster were shown to be co-transcribed, and contained the genes for two characterised subunits of the oxygenase component of the ABS-dioxygenase system, and genes putatively encoding ABS-transport functions with similarities to (a) an ABC-type transporter system and (b) a putative major facilitator superfamily transporter. No gene encoding the reductase for the oxygenase system was present in the abs gene cluster, but a candidate gene was found in the scm cluster. The seven-gene scm cluster was also transcribed as single polycistronic message. Functions could be attributed to the gene products, but one enzyme, which was shown to be present, 2-hydroxymuconate isomerase, was not encoded in the scm cluster. No transcriptional regulator was found. This genetic information on the degradation of ABS in strain O-1 provides another example of both split operons and dispersed pathway genes.
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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 |
1618-0623
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 2009 Elsevier GmbH. All rights reserved.
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pubmed:issnType |
Electronic
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pubmed:day |
30
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pubmed:volume |
165
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
288-99
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pubmed:meshHeading |
pubmed-meshheading:19577910-Alcaligenes,
pubmed-meshheading:19577910-Base Sequence,
pubmed-meshheading:19577910-DNA Transposable Elements,
pubmed-meshheading:19577910-Genes, Bacterial,
pubmed-meshheading:19577910-Isomerases,
pubmed-meshheading:19577910-Metabolic Networks and Pathways,
pubmed-meshheading:19577910-Molecular Sequence Data,
pubmed-meshheading:19577910-Multigene Family,
pubmed-meshheading:19577910-Operon,
pubmed-meshheading:19577910-Plasmids,
pubmed-meshheading:19577910-Sequence Analysis, DNA,
pubmed-meshheading:19577910-Sulfanilic Acids
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pubmed:year |
2010
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pubmed:articleTitle |
Identification of two vicinal operons for the degradation of 2-aminobenzenesulfonate encoded on plasmid pSAH in Alcaligenes sp. strain O-1.
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pubmed:affiliation |
Fachbereich Biologie der Universität Konstanz, Universitätsstrasse 10, D-78457 Konstanz, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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