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lac operon
(redirected from Lac promoter)

    Also found in: Wikipedia 0.07 sec.
lac operon
the lactose operon, a nucleotide sequence in Escherichia coli that controls the synthesis of the enzyme ß-galactosidase comprising binding sequence motifs for the cap protein, which activates transcription, the repressor protein, which inhibits transcription, and a region with which RNA polymerase interacts. The first, best studied and best understood model for gene regulation.


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Effects of alterations in the translational control region on bacterial gene expression: Use of cat gene constructs transcribed from the lac promoter as a model system.
5'-proximal AUG sequences as translation initiation signals on mRNAs ... by Jones III, Robert L. / Transactions of the Missouri Academy of Science
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