Exploration of a mechanistic link between eukaryotic transcription and translation

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Gene transcription is functionally coupled to other aspects of eukaryotic mRNA metabolism, emphasizing a need for integrated approaches to analyse the gene expression pathway. We have shown in previous work that yeast cells, when responding to external stimuli, show a tight correlation between changes in the transcriptome composition and homodirectional alterations in the translation state of mRNAs. This phenomenon of ?potentiation? may serve to amplify signal-induced changes in the transcriptome at the translational level. This project will begin to unravel the molecular mechanisms underlying potentiation using experiments designed to distinguish between transcription- and translation-driven mechanisms.