Linked Life Data

7925377

Source:http://linkedlifedata.com/resource/pubmed/id/7925377

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1994-10-27
pubmed:abstractText
Glucose repression in the yeast Saccharomyces cerevisiae designates a global regulatory system controlling the expression of various sets of genes required for the utilization of alternate carbon sources. In a screen, designed for the selection of mutants with reduced glycolytic flux we obtained isolates which were shown by complementation of the cloned wild-type gene to be allelic to the glucose repression mutants grr1/cat80/cot2 previously described. We demonstrate that the grr1 lesion lead to a concentration-dependent decrease in glycolytic flux on glucose. It is very likely that this is caused by a significant decrease in the expression of various genes encoding hexose transporters (HXT1,3) leading to a reduced glucose-uptake rate. In contrast, expression of the maltose permease gene (MAL11) and maltose utilization is normal. There is indirect evidence that grr1 affects the uptake of amino acids, and others have shown that the sugar-induced transport of divalent cations is impaired. These effects are not glucose-specific. We suggest that Grr1, a putative cytoplasmic protein, has a central function in the sensing of nutritional conditions for a variety of unrelated substances, and that relief from glucose repression may be a corollary of this defect in sensing.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0014-2956
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
224
pubmed:geneSymbol
HXT1, HXT2, HXT3, HXT4, MAL11, cat80, grr1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
605-11
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1994
pubmed:articleTitle
Glucose uptake and metabolism in grr1/cat80 mutants of Saccharomyces cerevisiae.
pubmed:affiliation
Institut für Mikrobiologie, Heinrich-Heine-Universität Düsseldorf, Germany.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't