T. Rapoport

Activation and inactivation pathways of a p53-like transcription factor govern lipid homeostasis in yeast

Membrane fluidity depends on unsaturated acyl chains that are generated in Saccharomyces cerevisiae by the desaturase Ole1, whose expression is primarily under the control of the transcription factor Mga2. Here, we show that the endoplasmic reticulum-anchored Mga2 precursor is ubiquitinated by the E3 ligase Rsp5 and th...