Protein modulation of lipids, and vice-versa, in membranes.
This review describes: (i) perturbations of the membrane lipids that are induced by integral membrane proteins, and reciprocally, (ii) the effects that the lipids may have on the function of membrane-associated proteins. Topics of the first category that are covered include: stoichiometry and selectivity of the first shell of lipids associated at the intramembranous perimeter of transmembrane proteins; the chain configuration and exchange rates of the first-shell lipids; the effects of transmembrane peptides on transbilayer movement of lipids (flip-flop); the effects of membrane proteins on lipid polymorphism and formation of non-lamellar phases; and the effects of hydrophobic mismatch on lipid chain configuration, phase stability and selectivity of lipid-protein association. Topics of the second category are: the influence of lipid selectivity on conformational changes in the protein; the effects of elastic fluctuations of the lipid bilayer on protein insertion and orientation in membranes; the effects of hydrophobic matching on intramembrane protein-protein association; and the effects of intrinsic lipid curvature on membrane integration, oligomer formation and activity of membrane proteins.
Marsh
Derek
D
Max-Planck-Institut für biophysikalische Chemie, Abt. Spektroskopie, Göttingen, Germany. dmarsh@gwdg.de
D000818:Animals; D055592:Biophysical Phenomena; D001703:Biophysics; D004548:Elasticity; D004578:Electron Spin Resonance Spectroscopy; D057927:Hydrophobic and Hydrophilic Interactions; D009682:Magnetic Resonance Spectroscopy; D008563:Membrane Lipids / Q000737:chemistry* / Q000378:metabolism; D021962:Membrane Microdomains / Q000737:chemistry / Q000378:metabolism; D008565:Membrane Proteins / Q000737:chemistry* / Q000378:metabolism; D008958:Models, Molecular; D013816:Thermodynamics
D008563:Membrane Lipids; D008565:Membrane Proteins