Abstract
DNA from the cloned yeast iso-1-cytochrome c, cycl, gene was used in a hybridization assay to measure levels and rates of synthesis of cycl RNA. Derepressed cells synthesized cycl RNA at 6 times the rate of that of glucose-repressed cells. Upon glucose addition to a derepressed culture, the transcription of the cycl gene was repressed within 2.5 min. The half-life of hybridizable cycl RNA was determined to be 12-13.5 min under repressed and derepressed conditions and during repression. The results demonstrate that the expression of the cycl gene is subject to transcriptional regulation.
MeSH Terms
Cytochrome c Group/genetics
DNA, Recombinant
Genes
Glucose/metabolism
Nucleic Acid Hybridization
RNA, Messenger/metabolism
Raffinose/metabolism
Saccharomyces cerevisiae/genetics
Transcription, Genetic
Chemicals
Cytochrome c Group
DNA, Recombinant
RNA, Messenger
Glucose
Raffinose
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Zitomer R S
Montgomery D L
Nichols D L
Hall B D
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