The Ups/PRELI family mediates intramitochondrial lipid distribution and synthesis by shuttling phospholipids between both mitochondrial membranes. Here the authors combine X-ray crystallography, MD simulations and yeast genetic screens and identify residues that are important for Ups/PRELI lipid specificity and reveal a dual lipid recognition mechanism in Ups/PRELI family members.
- Xeni Miliara
- Takashi Tatsuta
- Thomas Langer