Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1986-9-17
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.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
16
pubmed:volume
138
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
159-66
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
The effect of arabinose 1,5-bisphosphate on rat hepatic 6-phosphofructo-1-kinase and fructose-1,6-bisphosphatase.
pubmed:publicationType
Journal Article