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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1981-4-21
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pubmed:abstractText |
The citrate analogue, 2-fluoro-L-erythro-[3,4,5,6-(14)C]citrate was synthesized as a probe for the citrate transport system of Salmonella typhimurium. This analogue was actively transported by an inducible energy-dependent transport system with high affinity for fluorocitrate (Km = 3.3 microM), and this transport system was inhibited competitively by citrate and isocitrate. Fluorocitrate was shown to be a competitive inhibitor of the citrate-binding protein (C protein) of this organism (Ki = 4-5 microM). Analogue resistant mutants were simultaneously defective in fluorocitrate transport as well as the C protein and the affected allele, tctC, was located at 59 units on the S. typhimurium chromosome map. These tctC mutants were shown to be specifically defective in K+-dependent fluorocitrate transport but still retained another system capable of transporting fluorocitrate in the presence of both Na+ and K+.
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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 |
Oct
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pubmed:issn |
0008-4018
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
58
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
797-803
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7006757-Binding, Competitive,
pubmed-meshheading:7006757-Biological Transport,
pubmed-meshheading:7006757-Carrier Proteins,
pubmed-meshheading:7006757-Citrates,
pubmed-meshheading:7006757-Genotype,
pubmed-meshheading:7006757-Isocitrates,
pubmed-meshheading:7006757-Kinetics,
pubmed-meshheading:7006757-Mutation,
pubmed-meshheading:7006757-Salmonella typhimurium,
pubmed-meshheading:7006757-Species Specificity
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pubmed:year |
1980
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pubmed:articleTitle |
Citrate transport in Salmonella typhimurium: studies with 2-fluoro-L-erythro-citrate as a substrate.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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