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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1986-9-17
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pubmed:abstractText |
The alpha- and beta-anomers of arabinose 1,5-bisphosphate and ribose 1,5-bisphosphate were tested as effectors of rat liver 6-phosphofructo-1-kinase and fructose-1,6-bisphosphatase. Both anomers of arabinose 1,5-bisphosphate activated the kinase and inhibited the bisphosphatase. The alpha-anomer was the more effective kinase activator while the beta-anomer was the more potent inhibitor of the bisphosphatase. Inhibition of the bisphosphatase by both anomers was competitive, and both potentiated allosteric inhibition by AMP. beta-Arabinose 1,5-bisphosphate was also more effective in decreasing fructose 2,6-bisphosphate binding to the enzyme. Neither anomer of ribose 1,5-bisphosphate affected 6-phosphofructo-1-kinase or fructose-1,6-bisphosphatase, indicating that the configuration of the C-2 (C-3 in Fru 2,6-P2) hydroxyl group is important for biological activity. These results are also consistent with arabinose 1,5-bisphosphate binding to the active site and thereby enhancing the interaction of AMP with the allosteric site.
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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/Adenosine Monophosphate,
http://linkedlifedata.com/resource/pubmed/chemical/Fructose-Bisphosphatase,
http://linkedlifedata.com/resource/pubmed/chemical/Fructosediphosphates,
http://linkedlifedata.com/resource/pubmed/chemical/Pentosephosphates,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphofructokinase-1,
http://linkedlifedata.com/resource/pubmed/chemical/fructose 2,6-diphosphate
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0006-291X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
16
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pubmed:volume |
138
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
159-66
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:3017313-Adenosine Monophosphate,
pubmed-meshheading:3017313-Animals,
pubmed-meshheading:3017313-Fructose-Bisphosphatase,
pubmed-meshheading:3017313-Fructosediphosphates,
pubmed-meshheading:3017313-Kinetics,
pubmed-meshheading:3017313-Liver,
pubmed-meshheading:3017313-Pentosephosphates,
pubmed-meshheading:3017313-Phosphofructokinase-1,
pubmed-meshheading:3017313-Rats,
pubmed-meshheading:3017313-Stereoisomerism,
pubmed-meshheading:3017313-Temperature
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pubmed:year |
1986
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pubmed:articleTitle |
The effect of arabinose 1,5-bisphosphate on rat hepatic 6-phosphofructo-1-kinase and fructose-1,6-bisphosphatase.
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pubmed:publicationType |
Journal Article
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