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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1994-7-29
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pubmed:abstractText |
The Escherichia coli serC-aroA operon encodes biosynthetic enzymes for unrelated amino acid biosynthetic pathways leading to the synthesis of serine and the aromatic amino acids. A serC-aroA-lac translational fusion was constructed in the vector pMC1403. Synthesis of beta-galactosidase from the serC-aroA-lac fusion was found to be enhanced in the presence of lactose as the sole carbon source. This enhancement was not observed in strains containing a cya or crp mutant. However, the exogenous addition of cAMP greatly increased the beta-galactosidase synthesis in the cya mutant strain. The serC-aroA mRNA content, analyzed by a dot blot assay, also appeared to increase in the serC+ aroA+ cells after the exogenous addition of cAMP. These findings unambiguously indicate that the expression of the serC-aroA operon is positively controlled by cAMP.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0006-3002
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
21
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pubmed:volume |
1218
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pubmed:geneSymbol |
aroA,
serC
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
250-3
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8018734-Base Sequence,
pubmed-meshheading:8018734-Cyclic AMP,
pubmed-meshheading:8018734-Escherichia coli,
pubmed-meshheading:8018734-Genes, Bacterial,
pubmed-meshheading:8018734-Molecular Sequence Data,
pubmed-meshheading:8018734-Operon,
pubmed-meshheading:8018734-Plasmids,
pubmed-meshheading:8018734-RNA, Messenger,
pubmed-meshheading:8018734-Recombinant Proteins,
pubmed-meshheading:8018734-beta-Galactosidase
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pubmed:year |
1994
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pubmed:articleTitle |
Cyclic AMP-dependent expression of the Escherichia coli serC-aroA operon.
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pubmed:affiliation |
Department of Biochemistry, Kangwon National University, South Korea.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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