Growth-regulated recruitment of the essential yeast ribosomal protein gene activator Ifh1

Regulation of ribosome biogenesis is central to the control of cell growth. In rapidly growing yeast cells, ribosomal protein (RP) genes account for approximately one-half of all polymerase II transcription-initiation events, yet these genes are markedly and coordinately downregulated in response to a number of environmental stress conditions, or during the transition from fermentation to respiration.

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