title: Molecular basis of transient repression of beta-galactosidase in Escherichia coli.
abstract: The molecular basis of transient repression of beta-galactosidase by glucose was examined. This repression acted only at the level of transcription. Apparently, it was not mediated by the I-gene product. Analysis of single cells in a culture subjected to transient repression showed that essentially all cells initially experienced repression and later became gradually resistant to repression.
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis; D002247:Carbon Isotopes; D004790:Enzyme Induction; D004794:Enzyme Repression; D004926:Escherichia coli / Q000201:enzymology*; D005453:Fluorescence; D005696:Galactosidases / Q000032:analysis / Q000037:antagonists & inhibitors / Q000378:metabolism*; D005827:Genetics, Microbial; D005947:Glucose / Q000494:pharmacology; D007930:Leucine / Q000378:metabolism; D008967:Molecular Biology
chemical_list: D001426:Bacterial Proteins; D002247:Carbon Isotopes; D005696:Galactosidases; D007930:Leucine; D005947:Glucose