Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1977-5-27
pubmed:abstractText
Saccharomyces cerevisiae -136ts synthesized invertase in media containing maltose and sucrose. In the presence of glucose synthesis of enzyme took place when the sugar concentration was lower than 1%. At higher concentrations enzyme formation was repressed. Analysis of the glucose effect before RNA inhibition showed that the hexose interfered with the transcription of DNA into invertase messenger RNA. Translation of invertase messenger already formed was also inhibited and the kinetics of this effect was similar to that produced by cycloheximide. Invertase activity was independent of glucose suggesting that the hexose produces no catabolite inhibition of invertase activity. Inhibition of invertase translation by glucose turned out to be reversible but the amount of enzyme produced was dependent on duration of treatment. It is suggested that the catabolite repression of invertase synthesis produced by glucose operates at the levels of transcription and translation and produces an increase in the rate of mRNA degradation. The catabolite repression has no effect on secretion and does not interfere with the catalytic activity of invertase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
475
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
103-12
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1977
pubmed:articleTitle
The mechanism of catabolite inhibition of invertase by glucose in Saccharomyces cerevisiae.
pubmed:publicationType
Journal Article