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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1980-4-17
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pubmed:abstractText |
The reaction product of enzymic dehydrogenation of alpha-hydroxy-gamma-carboxymuconic epsilon-semialdehyde (HCMS) was isolated. The analytical data (elemental analyses, IR spectra, mass spectra, proton NMR spectra, and UV spectra) showed that the product was not alpha-hydroxy-gamma-carboxymuconic acid (HCMA), the expected primary product of HCMS dehydrogenation, but a lactone of HCMA. The structure of the lactone was tentatively determined as alpha-pyrone-4,6-dicarboxylic acid. HCMS was converted stoichiometrically to the lactone by the purified NAD(P)-linked HCMS dehydrogenase. The lactone was actively metabolized by a cell-free extract prepared from Pseudomonas ochraceae grown on phthalic acid, suggesting that it may be a metabolic intermediate in the bacterial metabolism of protocatechuic acid. Furthermore, a method for the chemical synthesis of the lactose of HCMA is presented and some of its chemical and biochemical properties are described.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Aldehyde Oxidoreductases,
http://linkedlifedata.com/resource/pubmed/chemical/Aldehydes,
http://linkedlifedata.com/resource/pubmed/chemical/Dicarboxylic Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Pyrans,
http://linkedlifedata.com/resource/pubmed/chemical/Pyrones
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0021-924X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
86
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1671-7
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pubmed:dateRevised |
2007-12-19
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pubmed:meshHeading |
pubmed-meshheading:528534-Aldehyde Oxidoreductases,
pubmed-meshheading:528534-Aldehydes,
pubmed-meshheading:528534-Dicarboxylic Acids,
pubmed-meshheading:528534-Magnetic Resonance Spectroscopy,
pubmed-meshheading:528534-Mass Spectrometry,
pubmed-meshheading:528534-Pseudomonas,
pubmed-meshheading:528534-Pyrans,
pubmed-meshheading:528534-Pyrones,
pubmed-meshheading:528534-Spectrophotometry, Infrared,
pubmed-meshheading:528534-Spectrophotometry, Ultraviolet
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pubmed:year |
1979
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pubmed:articleTitle |
Isolation and identification of the reaction product of alpha-hydroxy-gamma-carboxymuconic epsilon-semialdehyde dehydrogenase.
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pubmed:publicationType |
Journal Article
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