Membranes: a meeting point for lipids, proteins and therapies

P. Escribá,J. González-Ros,F. Goñi,P. Kinnunen,L. Vígh,L. Sánchez-Magraner,A. Fernández,X. Busquets,I. Horváth,G. Barceló-Coblijn

Published 2008 in Journal of Cellular and Molecular Medicine

ABSTRACT

•  Introduction •  Membrane lipid composition •  Membrane lipid structure •  Membrane lipid organization ‐  Why so many different lipids? ‐  Lipid mixing and demixing ‐  Lateral pressure ‐  Surface electrostatics •  Role of lipids in cell functions •  Lipid influence in transmembrane protein function ‐  Prokaryotic potassium channel (KcsA) ‐  Mechanosensitive channels ‐  Voltage‐gated potassium channel (KvAP) ‐  Nicotinic acetylcholine receptor (nAcChR) ‐  G protein‐coupled receptors ‐  Other examples •  Non‐permanent proteins in membranes ‐  Proteins that interact reversibly with the bilayers ‐  Proteins that interact irreversibly with the bilayers ‐  Proteins that interact weakly with the membrane ‐  Proteins that interact strongly with the membrane ‐  G proteins and their interactions with membranes ‐  Small monomeric G proteins: the Ras and Ras‐like family ‐  Protein kinase C •  Membrane microdomains and lipid mediators in the control of heat‐shock protein response ‐  Stress sensing and signalling: the membrane sensor theory ‐  Hsp signalling in cancer and diabetes ‐  The role of membrane microdomains ‐  Lipid mediators of the stress response •  A subpopulation of Hsps can interact with and translocate through membranes ‐  Hsp90 in eukaryotic membranes ‐  Hsp70 in cell membranes ‐  Hsp27‐membrane interactions ‐  Secreted Hsps ‐  Representative cases where Hsps interact with membranes or release from the cells •  Concluding remarks

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