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The Many Faces of Amphipathic Helices

Archive ouverte | Giménez-Andrés, Manuel | CCSD

International audience. Amphipathic helices (AHs), a secondary feature found in many proteins, are defined by their structure and by the segregation of hydrophobic and polar residues between two faces of the helix. ...

Acyl chain asymmetry and polyunsaturation of brain phospholipids facilitate membrane vesiculation without leakage

Archive ouverte | Manni, Marco | CCSD

International audience. Phospholipid membranes form cellular barriers but need to be flexible enough to divide by fission. Phospholipids generally contain a saturated fatty acid (FA) at position sn1 whereas the sn2-...

Exceptional stability of a perilipin on lipid droplets depends on its polar residues, suggesting multimeric assembly

Archive ouverte | Gimenez-Andres, Manuel | CCSD

International audience. Numerous proteins target lipid droplets (LDs) through amphipathic helices (AHs). It is generally assumed that AHs insert bulky hydrophobic residues in packing defects at the LD surface. Howev...

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