rdf:type |
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lifeskim:mentions |
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pubmed:issue |
Pt 8
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pubmed:dateCreated |
2006-7-19
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pubmed:abstractText |
Several cellular pathways have been identified which affect the efficiency of thiamine biosynthesis in Salmonella enterica. Mutants defective in iron-sulfur (Fe-S) cluster metabolism are less efficient at synthesis of the pyrimidine moiety of thiamine. These mutants are compromised for the conversion of aminoimidazole ribotide (AIR) to 4-amino-5-hydroxymethyl-2-methylpyrimidine phosphate (HMP-P), not the synthesis of AIR. The gene product ThiC contains potential ligands for an Fe-S cluster that are required for function in vivo. The conversion of AIR to HMP-P is sensitive to oxidative stress, and variants of ThiC have been identified that have increased sensitivity to oxidative growth conditions. The data are consistent with ThiC or an as-yet-unidentified protein involved in HMP-P synthesis containing an Fe-S cluster required for its physiological function.
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pubmed:grant |
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/4-amino-5-hydroxymethyl-2-methylpyri...,
http://linkedlifedata.com/resource/pubmed/chemical/Bacterial Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Iron-Sulfur Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Paraquat,
http://linkedlifedata.com/resource/pubmed/chemical/Pyrimidines,
http://linkedlifedata.com/resource/pubmed/chemical/Ribonucleotides,
http://linkedlifedata.com/resource/pubmed/chemical/Superoxides,
http://linkedlifedata.com/resource/pubmed/chemical/ThiC protein, Bacteria,
http://linkedlifedata.com/resource/pubmed/chemical/Thiamine,
http://linkedlifedata.com/resource/pubmed/chemical/aminoimidazole ribotide
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
1350-0872
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
152
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2345-53
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
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pubmed:year |
2006
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pubmed:articleTitle |
A connection between iron-sulfur cluster metabolism and the biosynthesis of 4-amino-5-hydroxymethyl-2-methylpyrimidine pyrophosphate in Salmonella enterica.
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pubmed:affiliation |
Department of Bacteriology, University of Wisconsin, 420 Henry Mall, Madison, WI 53706-1502, USA.
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pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Extramural
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