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Licensed Unlicensed Requires Authentication Published by De Gruyter April 3, 2015

Homeostatic control of biological membranes by dedicated lipid and membrane packing sensors

Kristina Puth, Harald F. Hofbauer, James P. Sáenz and Robert Ernst
From the journal Biological Chemistry

Abstract

Biological membranes are dynamic and complex assemblies of lipids and proteins. Eukaryotic lipidomes encompass hundreds of distinct lipid species and we have only begun to understand their role and function. This review focuses on recent advances in the field of lipid sensors and discusses methodical approaches to identify and characterize putative sensor domains. We elaborate on the role of integral and conditionally membrane-associated sensor proteins, their molecular mechanisms, and identify open questions in the emerging field of membrane homeostasis.


Corresponding author: Robert Ernst, Institute of Biochemistry, Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt/Main, Germany, e-mail:
aKristina Puth and Harald F. Hofbauer: These authors contributed equally to this work.

Acknowledgments

We apologize to all of our colleagues, whose work could not be cited. R.E. acknowledges the Deutsche Forschungsgemeinschaft for support (Emmy Noether Program ER608/2-1, SFB807 Transport and Communication across Biological Membranes, and the CEF-II Adjunct Investigator Program). The Pymol Molecular Graphics System was used for the representation of α-helices.

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Received: 2015-2-18
Accepted: 2015-3-31
Published Online: 2015-4-3
Published in Print: 2015-9-1

©2015 by De Gruyter