Yet1p-Yet3p interacts with Scs2p-Opi1p to regulate ER localization of the Opi1p repressor.

Abstract excerpt

Lipid sensing mechanisms at the endoplasmic reticulum (ER) coordinate an array of biosynthetic pathways. A major phospholipid regulatory circuit in yeast is controlled by Scs2p, an ER membrane protein that binds the transcriptional repressor protein Opi1p. Cells grown in the absence of inositol sequester Scs2p-Opi1p at the ER and derepress target genes including INO1. We recently reported that Yet1p and Yet3p,...

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